Canary seed grain

1. Scope and Applicability

This PCR covers cultivated canary seed grain (annual canarygrass, Phalaris canariensis) delivered at the farm gate after harvest. It includes field preparation, seeding, crop management, harvest, and optional on-farm cleaning or drying when those operations occur before hand-off. It covers grain sold for bird feed, food ingredients, or further processing. It excludes certified seed multiplication, whole-crop forage, hay, silage, grazing, cover-crop services, off-farm cleaning or milling, feed manufacture, and downstream transport or use.

The foreground data package shall declare geography, cultivar or variety, crop year, field area, yield, moisture, impurity basis, intended use, residue fate, and whether conditioning is included. Seeding rate, weed-control programme, harvest timing, and post-harvest quality are collected inputs rather than fixed PCR quantities.

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.agriculture-forestry-and-fishery-products.products-of-agriculture-horticulture-and-market-gardening.canary-seed
classification_refs	CPC 3.0: 01195 Canary seed; mapping relation: narrower
covered_products	harvested canary seed grain for feed, food, or further processing at the farm gate
excluded_products	certified seed; whole-crop forage, hay, silage, grazing, or cover-crop service; milled products; prepared bird feed; off-farm storage and transport
representative_product	clean or uncleaned harvested canary seed grain, with declared moisture and quality state
production_route	managed annual canarygrass cultivation, harvest, and conditional on-farm grain conditioning
market_state	unprocessed grain at farm gate, with moisture, impurity, treated-seed, variety, and intended-use status declared

3. Reference Flow

Field	Value
What	canary seed grain at the farm gate
How much	1,000 kg as-received grain
How well	harvested, unprocessed grain with declared moisture, impurity, damage, variety, and intended-use specifications
How long or cycle	one declared canary seed crop cycle
reference_flow_link	reference_product_at_declared_handoff

Field	Value
Reference amount	1000
Reference product flow	Canary seed, production mix, at farm gate, harvested grain, unprocessed
Reference flow property	Mass 93a60a56-a3c8-11da-a746-0800200b9a66
Reference unit group	Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
Reference unit	kg
Required qualifiers	production geography; cultivar or variety; crop year; harvested grain moisture; impurity and dockage basis; intended use; treated-seed status; conditioning included or excluded

When constructing a foreground data package, the items listed in Required qualifiers must be declared in dataset metadata, process notes, reference flow comment, product description, or an equivalent data package field. Missing required qualifiers make the reference flow definition incomplete for that data package.

Each foreground dataset must explicitly select one actual route, declared gate, product state and output row. Reconcile the selected terminal route with reference_product_at_declared_handoff; normalize that handoff output to the reference quantity and retain preceding-stage outputs as measured transfers. Raw weighing, mass reconciliation and lot traceability requirements continue to apply.

The sole reference output is reference_product_at_declared_handoff, receiving the selected actual route product at the declared gate. Existing route-output ids identify the source and physical state; they are no longer individually fixed to the reference quantity.

4. Measurement and Unit Rules

rule_id	Applies to	Required property	Required unit	Rule
reference_mass_as_received	reference canary seed grain	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Report as-received grain mass and measured moisture; retain the moisture basis for every dry-matter or conditioning conversion.
area_to_reference_conversion	area-based field records	activity-specific property	activity-specific unit	Divide each crop-cycle field total by marketable grain yield from the same fields and cycle, then scale to 1,000 kg reference grain. The resulting inventory amount is reported on a reference_flow basis.
nutrient_content_basis	fertilizer and amendment records	nutrient mass	kg N, kg P2O5, or kg K2O	Preserve formulated product mass and declared nutrient content separately; do not merge N, P2O5, and K2O into one fertilizer amount.
moisture_and_impurity_basis	grain outputs and conditioning	Mass and moisture	kg and mass-%	State whether quantities are gross, net cleaned, or dry-matter adjusted and keep dockage, screenings, and rejects outside accepted grain mass.

5. System Boundary

Boundary Abstraction

Field	Value
declared_starting_condition	prepared field at the beginning of the canary seed crop cycle, with seed and purchased management inputs crossing the foreground boundary
starting_condition_role	start of managed canary seed grain production
product_classification_scope	cultivated canary seed grain corresponding to CPC 3.0 code 01195
recursive_input_rule	purchased or retained canary seed for sowing is an explicit seed input linked to a distinct upstream seed-supply dataset and shall not loop to this harvested-grain process
upstream_dataset_requirement	compatible upstream datasets for seed, fertilizers, crop-protection formulations, fuels, electricity, irrigation supply, and contracted services
disclosure	crop type, cultivar, geography, crop dates, previous crop, tillage, seeding rate, irrigation, nutrient products, pesticide products, yield, moisture, impurity, residue fate, and conditioning boundary

Boundary Rules

rule_id	Applies to	Rule	source_ids
boundary_crop_cycle_to_farm_gate	all conforming datasets	Include field preparation, seeding, crop management, harvest, and on-farm cleaning or drying performed before farm-gate hand-off.	saskatchewan-canary-seed-guide
boundary_direct_field_emissions	managed soil and crop emissions	Include direct and indirect nitrogen-related emissions and relevant combustion or field emissions using geographically applicable methods and the same activity records used for nutrient and residue accounting.	ipcc-2019-managed-soils; emep-eea-2023-guidebook
boundary_residue_fate	straw, chaff, and crop residues	Distinguish residues returned to soil, burned, removed as a useful co-product, and removed as waste; prevent double counting residue nitrogen and exported material.	ipcc-2019-managed-soils
boundary_conditioning_gate	optional conditioning	Include electricity, heat, incoming grain, accepted grain, screenings, rejects, and measured moisture loss only when cleaning or drying occurs before the declared farm-gate hand-off.	cgc-canary-seed-grading-2026; mass-balance-identity
boundary_post_farm_gate_exclusion	downstream activities	Exclude off-farm transport, storage, milling, feed manufacture, food preparation, and use unless a study explicitly extends beyond this PCR.

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
canary_seed_field_production	Canary seed field production and harvest	required	always	managed biological production and harvest	cultivated hectare and harvested grain mass for one crop cycle
canary_seed_grain_conditioning	On-farm canary seed grain conditioning	conditional	cleaning, drying, sorting, or temporary handling occurs before farm-gate hand-off and is not already included in field records	prepare harvested grain to declared market state	matched incoming and accepted grain masses
declared_reference_handoff	Product Measurement at Declared Handoff	required		foreground	reference_product_at_declared_handoff

Process: Canary seed field production and harvest (canary_seed_field_production)

Inputs

Product flows

Canary seed for sowing (canary_seed_input)

Record purchased or retained seed crossing into the crop cycle. Do not substitute the harvested-grain UUID for seed identity.

• Selected flow: Canary seed for sowing

• Flow property / unit: Mass / kg

• Amount rule: measured seed mass sown, summed by field and converted from crop-cycle records to the reference flow

• Value mode: Foreground record (foreground_record)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg reference grain; collect per field and crop cycle, then divide by same-cycle marketable yield.

• Normalization basis: per declared reference flow

• Basis kind: Reference flow (reference_flow)

• Evidence kind: Collected record (collected_record)

• Collection protocol: cp_field_activity_records

• Sources: saskatchewan-canary-seed-guide

• Range: Published seeding-rate context

  • Range role: Typical range (typical_range)
  • Lower: 22
  • Upper: 45
  • Unit: kg seed/ha
  • Basis: drilled canary seed establishment per cultivated hectare; convert to the reference flow using same-cycle yield
  • Basis kind: Crop cycle (crop_cycle)
  • Evidence kind: External source (external_source)
  • Sources: saskatchewan-canary-seed-guide

Urea fertilizer (canary_seed_field_production_agricultural_nutrient_inputs_urea)

Collection scope and applicability for canary_seed_field_production_agricultural_nutrient_inputs. The following concrete identities have separate cards and apply only when use or generation is evidenced inside the original process scope. They are not mandatory inputs or a default recipe. Document non-use; missing records are not zero. Add a separate concrete card for any other actual material instead of substituting one of these names or UUIDs. Preserve attribution and boundaries and avoid double counting components included in outsourced services.

Collect each fertilizer product separately. Preserve each actual product identity, quantity, formulation, nutrient composition, application event, and allocation; do not count a compound product more than once. Raw activity or stage basis: per 1,000 kg reference grain; nutrient product mass multiplied by declared N fraction.

Confirm identity, grade, state and unit from equipment, supplier and contemporaneous measurements; the product UUID does not establish actual use or upstream-provider compatibility. Count physical product mass once and retain moisture, N/P/K composition and application events; nutrient quantities are calculated attributes, not additional purchases of the same product. Give unlisted compound and organic fertilizers separate cards identified by formulation or feedstock.

• Selected flow: Urea 3f8850c0-f718-4c4b-8fcb-8fd42e03aa8e
• Flow property / unit: Mass / kg
• Amount rule: Collect raw quantities for this identity under cp_field_activity_records and calculate the exchange per declared reference flow using the original attribution rules.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_field_activity_records
• Sources: fao-fertilizer-identities

Use this product identity only when the actual formulation and grade are compatible. Retain supplier composition and mass records; do not substitute nutrient mass, dilute solution mass or service activity for the product mass. The UUID alone supplies neither a dose nor an emission factor.

Ammonium sulfate fertilizer (canary_seed_field_production_agricultural_nutrient_inputs_ammonium_sulfate)

Confirm identity, grade, state and unit from equipment, supplier and contemporaneous measurements; the product UUID does not establish actual use or upstream-provider compatibility. Count physical product mass once and retain moisture, N/P/K composition and application events; nutrient quantities are calculated attributes, not additional purchases of the same product. Give unlisted compound and organic fertilizers separate cards identified by formulation or feedstock.

• Selected flow: Ammonium sulfate 8c6f0cbb-16d7-4dc9-8d55-e8dea17d7faf
• Flow property / unit: Mass / kg
• Amount rule: Collect raw quantities for this identity under cp_field_activity_records and calculate the exchange per declared reference flow using the original attribution rules.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_field_activity_records
• Sources: fao-fertilizer-identities

Use this product identity only when the actual formulation and grade are compatible. Retain supplier composition and mass records; do not substitute nutrient mass, dilute solution mass or service activity for the product mass. The UUID alone supplies neither a dose nor an emission factor.

Triple superphosphate fertilizer (canary_seed_field_production_agricultural_nutrient_inputs_triple_superphosphate)

Confirm identity, grade, state and unit from equipment, supplier and contemporaneous measurements; the UUID remains unverified. Count physical product mass once and retain moisture, N/P/K composition and application events; nutrient quantities are calculated attributes, not additional purchases of the same product. Give unlisted compound and organic fertilizers separate cards identified by formulation or feedstock.

• Selected flow: Triple superphosphate fertilizer
• Flow property / unit: Mass / kg
• Amount rule: Collect raw quantities for this identity under cp_field_activity_records and calculate the exchange per declared reference flow using the original attribution rules.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_field_activity_records
• Sources: fao-fertilizer-identities

Potassium chloride fertilizer (canary_seed_field_production_agricultural_nutrient_inputs_potassium_chloride)

Confirm identity, grade, state and unit from equipment, supplier and contemporaneous measurements; the UUID remains unverified. Count physical product mass once and retain moisture, N/P/K composition and application events; nutrient quantities are calculated attributes, not additional purchases of the same product. Give unlisted compound and organic fertilizers separate cards identified by formulation or feedstock.

• Selected flow: Potassium chloride fertilizer
• Flow property / unit: Mass / kg
• Amount rule: Collect raw quantities for this identity under cp_field_activity_records and calculate the exchange per declared reference flow using the original attribution rules.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_field_activity_records
• Sources: fao-fertilizer-identities

Cattle manure applied as fertilizer (canary_seed_field_production_agricultural_nutrient_inputs_cattle_manure)

Confirm identity, grade, state and unit from equipment, supplier and contemporaneous measurements; the UUID remains unverified. Count physical product mass once and retain moisture, N/P/K composition and application events; nutrient quantities are calculated attributes, not additional purchases of the same product. Give unlisted compound and organic fertilizers separate cards identified by formulation or feedstock.

• Selected flow: Cattle manure applied as fertilizer
• Flow property / unit: Mass / kg
• Amount rule: Collect raw quantities for this identity under cp_field_activity_records and calculate the exchange per declared reference flow using the original attribution rules.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_field_activity_records
• Sources: fao-organic-nutrients

Composted plant residues applied to soil (canary_seed_field_production_agricultural_nutrient_inputs_plant_compost)

Confirm identity, grade, state and unit from equipment, supplier and contemporaneous measurements; the UUID remains unverified. Count physical product mass once and retain moisture, N/P/K composition and application events; nutrient quantities are calculated attributes, not additional purchases of the same product. Give unlisted compound and organic fertilizers separate cards identified by formulation or feedstock.

• Selected flow: Composted plant residues applied to soil
• Flow property / unit: Mass / kg
• Amount rule: Collect raw quantities for this identity under cp_field_activity_records and calculate the exchange per declared reference flow using the original attribution rules.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_field_activity_records
• Sources: fao-organic-nutrients

Irrigation water supplied (irrigation_water_input)

Record irrigation delivered to the field separately from precipitation. Rainfed production is recorded as zero irrigation input.

• Selected flow: Irrigation water supply

• Flow property / unit: Volume / m3

• Amount rule: metered volume or verified pump-flow calculation and conversion to the reference flow

• Value mode: Calculated value (calculated_value)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg reference grain; crop-cycle irrigation total divided by same-cycle marketable yield.

• Normalization basis: per declared reference flow

• Basis kind: Reference flow (reference_flow)

• Evidence kind: Calculated from collection (calculated_from_collection)

• Collection protocol: cp_field_activity_records

• Range: Provisional irrigation screening estimate

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 6,000
  • Unit: m3/ha
  • Basis: one crop cycle, including rainfed production at zero; convert using same-cycle yield
  • Basis kind: Crop cycle (crop_cycle)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Diesel fuel used by field machinery (field_diesel_input)

Record diesel consumed by owned or controlled machinery. Contractor fuel belongs in an upstream contracted-service dataset when that service is modelled separately.

• Selected flow: Diesel fuel 9d258d75-6792-4f1c-9856-81602ed8f816

• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg

• Amount rule: measured or invoiced diesel assigned to canary seed operations and converted to the reference flow

• Value mode: calculated_value

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg reference grain; crop-cycle fuel total divided by same-cycle marketable yield.

• Normalization basis: per declared reference flow

• Basis kind: Reference flow (reference_flow)

• Evidence kind: calculated_from_collection

• Collection protocol: cp_field_activity_records

Only actual diesel is represented by this card; other fuels or an inclusive contracted service require their own separate identities and must not also be charged here. The linked quantity is kg of diesel: preserve raw tank/invoice units; calculate kg = L × documented density in kg/L at the recorded temperature, or kg = MJ / documented diesel lower heating value in MJ/kg on the same energy basis. Direct mass records require no carrier conversion. Missing density or heating value must be obtained, never assumed. Apply measured area, period and accepted-output normalization once after carrier conversion, retaining the original final reference amount. No universal per-hectare fuel screen is imposed.

Waste flows

Elementary flows

Land occupation for canary seed cultivation (canary_seed_land_occupation)

Record cultivated area and occupation duration for the fields represented by the crop-cycle inventory.

• Selected flow: Land occupation, arable land

• Flow property / unit: Area-time / m2*a

• Amount rule: cultivated area × occupation duration, converted to the reference flow using same-cycle marketable yield

• Value mode: Calculated value (calculated_value)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg reference grain; area-time total divided by same-cycle marketable yield.

• Normalization basis: per declared reference flow

• Basis kind: Reference flow (reference_flow)

• Evidence kind: Calculated from collection (calculated_from_collection)

• Collection protocol: cp_field_activity_records

• Range: Provisional land-occupation screening estimate

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0.2
  • Upper: 8
  • Unit: ha*a/1,000 kg grain
  • Basis: one declared annual crop cycle and its represented cultivated area
  • Basis kind: Reference flow (reference_flow)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Outputs

Product flows

Harvested canary seed grain at farm gate (harvested_canary_seed_grain_output)

Record marketable harvested grain leaving field production. If conditioning is included, this row is the matched incoming grain to conditioning rather than the terminal reference output.

• Selected flow: Canary seed, production mix, at farm gate, harvested grain, unprocessed b390e8bf-4421-40ac-9881-10792f8fef57

• Flow property / unit: Mass / kg Raw output measurement and reconciliation: measured accepted or harvested grain mass with moisture and impurity basis declared; scale to 1,000 kg reference grain

• Amount rule: measured net transfer mass, retaining lot, actual product state and moisture basis; reconcile to the final reference output at the declared handoff

• Value mode: Foreground record (foreground_record)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg reference grain.

• Normalization basis: per declared reference flow

• Basis kind: Reference flow (reference_flow)

• Evidence kind: Collected record (collected_record)

• Collection protocol: cp_harvest_output_records

• Range: Provisional marketable-yield screening estimate

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 250
  • Upper: 3,000
  • Unit: kg grain/ha
  • Basis: same-cycle harvested grain yield per cultivated hectare; retain actual field and weighbridge records
  • Basis kind: Crop cycle (crop_cycle)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Canary seed straw or chaff removed from field (removed_canary_seed_residue_output)

Record straw or chaff only when it crosses the field boundary as a useful co-product or waste. Residue left or incorporated in the field is recorded through residue fate, not as an exported product.

• Selected flow: Canary seed straw or chaff, removed from field

• Flow property / unit: Mass / kg dry or as-received material

• Amount rule: measured removed residue mass with moisture and destination, converted to the reference flow

• Value mode: Foreground record (foreground_record)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg reference grain; crop-cycle residue mass divided by same-cycle marketable yield.

• Normalization basis: per declared reference flow

• Basis kind: Reference flow (reference_flow)

• Evidence kind: Collected record (collected_record)

• Collection protocol: cp_residue_and_waste_fate

• Range: Provisional removed-residue screening estimate

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 2,500
  • Unit: kg residue/ha
  • Basis: only residue physically removed from represented fields; convert using same-cycle yield
  • Basis kind: Crop cycle (crop_cycle)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Waste flows

Field residue not removed (retained_canary_seed_residue)

Record straw, chaff, and other crop residues that remain on the field or are incorporated. This row documents residue fate for emissions and avoids treating retained residue as a co-product.

• Selected flow: Canary seed crop residue, retained in field

• Flow property / unit: Mass / kg dry matter

• Amount rule: calculate from residue records, harvest yield, and a measured or justified residue-to-grain ratio, then convert to the reference flow

• Value mode: Calculated value (calculated_value)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg reference grain.

• Normalization basis: per declared reference flow

• Basis kind: Reference flow (reference_flow)

• Evidence kind: Calculated from collection (calculated_from_collection)

• Collection protocol: cp_residue_and_waste_fate

• Range: Provisional retained-residue screening estimate

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 2,500
  • Unit: kg dry residue/ha
  • Basis: residue returned or retained on the represented field; convert using same-cycle marketable yield
  • Basis kind: Crop cycle (crop_cycle)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Elementary flows

Nitrous oxide released to ambient air (field_n2o_air_output)

Calculate direct and indirect N2O emissions from fertilizer, organic inputs, residue nitrogen, volatilization, and leaching pathways with the selected regional method.

• Selected flow: Nitrous oxide, to ambient air

• Flow property / unit: Mass / kg N2O

• Amount rule: selected IPCC or regional method applied to collected nitrogen activity data and residue fate

• Value mode: Calculated value (calculated_value)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg reference grain.

• Normalization basis: per declared reference flow

• Basis kind: Reference flow (reference_flow)

• Evidence kind: Calculated from collection (calculated_from_collection)

• Collection protocol: cp_field_emission_activity

• Sources: ipcc-2019-managed-soils

• Range: Provisional N2O screening estimate

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 40
  • Unit: kg N2O/1,000 kg grain
  • Basis: complete crop cycle; method and regional factors must be disclosed
  • Basis kind: Reference flow (reference_flow)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Ammonia released to ambient air (field_ammonia_air_output)

Calculate ammonia volatilization from nitrogen products using product type, placement, timing, weather, and an applicable method factor.

• Selected flow: Ammonia, to ambient air

• Flow property / unit: Mass / kg NH3

• Amount rule: product- and application-specific volatilization method applied to collected nitrogen records

• Value mode: Calculated value (calculated_value)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg reference grain.

• Normalization basis: per declared reference flow

• Basis kind: Reference flow (reference_flow)

• Evidence kind: Calculated from collection (calculated_from_collection)

• Collection protocol: cp_field_emission_activity

• Sources: emep-eea-2023-guidebook

• Range: Provisional ammonia screening estimate

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 25
  • Unit: kg NH3/1,000 kg grain
  • Basis: complete crop cycle; use product and application records with a reviewed factor
  • Basis kind: Reference flow (reference_flow)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Nitrate released to water (field_nitrate_water_output)

Calculate nitrate loss to water from nitrogen inputs, soil, drainage, and local hydrology using the selected method; do not infer nitrate loss from fertilizer mass alone.

• Selected flow: Nitrate, to water

• Flow property / unit: Mass / kg NO3-

• Amount rule: selected regional leaching method applied to nitrogen activity, soil, drainage, and climate records

• Value mode: Calculated value (calculated_value)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg reference grain.

• Normalization basis: per declared reference flow

• Basis kind: Reference flow (reference_flow)

• Evidence kind: Calculated from collection (calculated_from_collection)

• Collection protocol: cp_field_emission_activity

• Sources: ipcc-2019-managed-soils

• Range: Provisional nitrate-loss screening estimate

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 80
  • Unit: kg NO3-/1,000 kg grain
  • Basis: complete crop cycle; disclose drainage and factor method
  • Basis kind: Reference flow (reference_flow)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Nitrogen oxides released to ambient air (field_nox_air_output)

Record nitrogen oxides from field combustion and nitrogen-related processes where the selected emission method requires the flow.

• Selected flow: Nitrogen oxides, to ambient air

• Flow property / unit: Mass / kg NOx

• Amount rule: apply the selected combustion or agricultural emission factor to collected activity data

• Value mode: Calculated value (calculated_value)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg reference grain.

• Normalization basis: per declared reference flow

• Basis kind: Reference flow (reference_flow)

• Evidence kind: Calculated from collection (calculated_from_collection)

• Collection protocol: cp_field_emission_activity

• Sources: ipcc-2019-managed-soils

• Range: Provisional NOx screening estimate

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 12
  • Unit: kg NOx/1,000 kg grain
  • Basis: complete crop cycle and represented fuel activity
  • Basis kind: Reference flow (reference_flow)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Process: On-farm canary seed grain conditioning (canary_seed_grain_conditioning)

Inputs

Product flows

Harvested grain entering conditioning (harvested_canary_seed_conditioning_input)

Include this input only when cleaning, drying, sorting, or temporary handling occurs before the declared farm-gate hand-off.

• Selected flow: Canary seed harvested grain entering conditioning

• Flow property / unit: Mass / kg

• Amount rule: weighed incoming grain batch with incoming moisture and impurity basis declared

• Value mode: Foreground record (foreground_record)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg accepted reference grain output; incoming batch is reconciled to terminal accepted output.

• Normalization basis: per declared reference flow

• Basis kind: Reference flow (reference_flow)

• Evidence kind: Collected record (collected_record)

• Collection protocol: cp_conditioning_records

• Range: Provisional incoming-to-accepted mass screen

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 950
  • Upper: 1,300
  • Unit: kg incoming grain/1,000 kg accepted grain
  • Basis: matched conditioning batch; retain wet-mass and moisture balance
  • Basis kind: Reference flow (reference_flow)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Electricity supplied to conditioning (conditioning_electricity_input)

Record electricity for fans, conveyors, cleaners, elevators, and other equipment included before farm-gate hand-off.

• Selected flow: Electricity supply, applicable site supply

• Flow property / unit: Energy / kWh

• Amount rule: meter reading or equipment energy record allocated to matched conditioning batches

• Value mode: Foreground record (foreground_record)

• Specificity: Technology-specific (technology_specific) Raw activity or stage basis: per 1,000 kg accepted reference grain output.

• Normalization basis: per declared reference flow

• Basis kind: Reference flow (reference_flow)

• Evidence kind: Collected record (collected_record)

• Collection protocol: cp_conditioning_records

• Range: Provisional conditioning electricity screen

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 80
  • Unit: kWh/1,000 kg accepted grain
  • Basis: matched pre-gate conditioning batches
  • Basis kind: Reference flow (reference_flow)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Thermal energy supplied for drying (conditioning_heat_input)

Record purchased heat or fuel-derived thermal energy used to dry grain before farm-gate hand-off; disclose the carrier and avoid double counting fuel already included in machinery records.

• Selected flow: Purchased process heat

• Flow property / unit: Energy / MJ

• Amount rule: measured heat meter, fuel-to-heat calculation, or supplier record allocated to matched conditioning batches

• Value mode: Calculated value (calculated_value)

• Specificity: Technology-specific (technology_specific) Raw activity or stage basis: per 1,000 kg accepted reference grain output.

• Normalization basis: per declared reference flow

• Basis kind: Reference flow (reference_flow)

• Evidence kind: Calculated from collection (calculated_from_collection)

• Collection protocol: cp_conditioning_records

• Range: Provisional conditioning heat screen

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 1,200
  • Unit: MJ/1,000 kg accepted grain
  • Basis: matched pre-gate drying batches; disclose moisture reduction and heat source
  • Basis kind: Reference flow (reference_flow)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Outputs

Product flows

Conditioned canary seed grain at farm gate (conditioned_canary_seed_grain_output)

Use this terminal output when conditioning is included in the declared route. It carries the same reference-flow identity and must state final moisture and quality basis.

• Selected flow: Canary seed, production mix, at farm gate, harvested grain, unprocessed b390e8bf-4421-40ac-9881-10792f8fef57

• Flow property / unit: Mass / kg Raw output measurement and reconciliation: measured accepted grain mass after conditioning, scaled to 1,000 kg reference grain

• Amount rule: measured net transfer mass, retaining lot, actual product state and moisture basis; reconcile to the final reference output at the declared handoff

• Value mode: Foreground record (foreground_record)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg accepted reference grain output.

• Normalization basis: per declared reference flow

• Basis kind: Reference flow (reference_flow)

• Evidence kind: Collected record (collected_record)

• Collection protocol: cp_conditioning_records

• Range: Terminal reference-output check

  • Range role: Allowed range (allowed_range)
  • Lower: 1,000
  • Upper: 1,000
  • Unit: kg accepted grain/1,000 kg reference grain
  • Basis: PCR reference flow after route scaling
  • Basis kind: Reference flow (reference_flow)
  • Evidence kind: Method formula (method_formula)
  • Sources: mass-balance-identity

Canary seed screenings directed to a useful use (canary_seed_screenings_output)

Record screenings separately when intentionally sold or transferred to a documented useful use. Material sent to disposal belongs in the reject-waste row.

• Selected flow: Canary seed screenings or downgraded grain for documented useful use

• Flow property / unit: Mass / kg

• Amount rule: weighed screenings by batch, moisture, and destination, converted to the reference flow

• Value mode: Foreground record (foreground_record)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg accepted reference grain output.

• Normalization basis: per declared reference flow

• Basis kind: Reference flow (reference_flow)

• Evidence kind: Collected record (collected_record)

• Collection protocol: cp_conditioning_records

• Range: Provisional useful-screenings screen

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 120
  • Unit: kg/1,000 kg accepted grain
  • Basis: matched conditioning batch and documented destination
  • Basis kind: Reference flow (reference_flow)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Waste flows

Foreign matter and rejected grain (conditioning_reject_waste_output)

Record foreign matter, stones, treated seed, damaged grain, and other rejects sent to disposal or a non-product treatment route. Do not count them as accepted grain.

• Selected flow: Canary seed conditioning rejects and foreign matter

• Flow property / unit: Mass / kg

• Amount rule: weighed reject mass by destination and batch, converted to the reference flow

• Value mode: Foreground record (foreground_record)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg accepted reference grain output.

• Normalization basis: per declared reference flow

• Basis kind: Reference flow (reference_flow)

• Evidence kind: Collected record (collected_record)

• Collection protocol: cp_conditioning_records

• Sources: cgc-canary-seed-grading-2026

• Range: Provisional conditioning-reject screen

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 150
  • Unit: kg/1,000 kg accepted grain
  • Basis: matched conditioning batch; distinguish dockage, useful screenings, and disposal rejects
  • Basis kind: Reference flow (reference_flow)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Elementary flows

Process: Product Measurement at the Declared Handoff (declared_reference_handoff)

This node records the actual product handoff at the existing system boundary for reconciliation and reference-quantity normalization. It adds no physical processing and does not presume drying, cooling, storage, packaging or transport. Each data package declares one actual route, one terminal product state, moisture or dry-matter basis, and gate. Feed only the accepted product delivered by that route at that gate into this node; do not add other routes as extra inputs. Record co-products separately and apply Section 7. Count preceding inputs, losses and emissions once. Normalize using the measured accepted net mass at the handoff; this measurement node changes neither mass, yield nor allocation.

Inputs

Product flows

Actual route product at handoff (actual_route_product_for_handoff)

Record the accepted product delivered by the actual terminal route and reconcile it with handoff weighing and lot records.

• Selected flow: Canary seed, production mix, at farm gate, harvested grain, unprocessed
• Flow property / unit: Mass / kg
• Amount rule: measured accepted net product mass at the actual handoff, normalized to the reference quantity; do not sum preceding-stage quantities, other routes or co-products
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_declared_reference_handoff
• Range: Handoff quantity normalization identity
  • Range role: QA guardrail (qa_guardrail)
  • Lower: 1
  • Upper: 1
  • Unit: kg/kg net handoff mass of the same state
  • Basis: normalization of the measured net mass of the same handoff state; not a physical-operation yield
  • Basis kind: Process output (process_output)
  • Evidence kind: Method formula (method_formula)
  • Sources: declared-handoff-measurement-definition

Waste flows

This measurement node adds no waste inputs.

Elementary flows

This measurement node adds no resource inputs.

Outputs

Product flows

Reference product at declared handoff (reference_product_at_declared_handoff)

• Selected flow: Canary seed, production mix, at farm gate, harvested grain, unprocessed
• Flow property / unit: Mass / kg
• Amount rule: 1000 kg
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per declared reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_declared_reference_handoff Confirm the product UUID independently for the actual state. Until confirmed, retain unresolved identity instead of inheriting a UUID from a preceding stage or another route.
• Range: Handoff quantity normalization identity
  • Range role: QA guardrail (qa_guardrail)
  • Lower: 1
  • Upper: 1
  • Unit: kg/kg net handoff mass of the same state
  • Basis: normalization of the measured net mass of the same handoff state; not a physical-operation yield
  • Basis kind: Process output (process_output)
  • Evidence kind: Method formula (method_formula)
  • Sources: declared-handoff-measurement-definition

Waste flows

Record actual losses at the operation where they occur; do not duplicate them here.

Elementary flows

Record actual emissions at the operation where they occur; do not duplicate them here.

7. Allocation and Co-product Handling

rule_id	Applies to	Rule	source_ids
allocation_avoid_by_subdivision	field production and conditioning	Prefer separate records for field production and conditioning and separate measurement of grain, removed residue, screenings, and rejects before allocating shared burdens.	iso-14044-2006
allocation_retained_residue	residues retained or incorporated	Do not treat retained residues as co-products; include their management and emissions in field production and prevent double counting with removed residue.	ipcc-2019-managed-soils
allocation_removed_residue	useful removed straw or chaff	If subdivision cannot resolve shared field burdens, apply economic allocation using contemporaneous farm-gate values; disclose moisture bases and test mass allocation as a sensitivity.	iso-14044-2006
allocation_conditioning_outputs	useful screenings and rejects	Treat an output with documented positive use as a co-product and disposal material as waste; use economic allocation at conditioning hand-off only when subdivision is infeasible.	iso-14044-2006

Concrete cards do not inherit numerical ranges from the former aggregate card. Determine quantities from original records, stock/meter reconciliation and the declared reference flow; no default quantity or numeric screen is supplied without evidence matching the identity, unit, period and boundary. Missing range evidence is a quality disclosure, not zero use or proof of completeness.

8. Foreground Data Collection, Calculation, and Quality Rules

Specific input identification before dataset completion

Identify the actual input for this operation from supplier specifications, equipment and primary records. This is a mandatory collection requirement, not an exchange. Before dataset completeness, represent each used material, formulated product, carrier or independently purchased service by one physically specific card with its native quantity/property; confirm a compatible UUID, or retain an explicit unresolved identity and do not claim a fully linked dataset. Do not substitute a conditional example for an unknown actual input, invent a recipe, omit required use or infer zero from missing records. Attribute shared use, reusable assets and inclusive services once; preserve the original stage/period and measured throughput link to final reference output. The former aggregate range is not a component limit or consumption default.

requirement_id	collection_protocol_id	Preserved collection scope
crop_protection_input_specific_input	cp_field_activity_records	Operation canary_seed_field_production: Record each herbicide, fungicide, insecticide, desiccant, or other formulation by product identity and application event. Retain active ingredients and product identities before aggregation. Original quantity method: measured or invoiced product mass by formulation, summed by field and converted to the reference flow

Retain raw site, lot, cycle and stage quantities and denominators in each collection protocol. Reconcile stocks, losses, moisture and co-product attribution first, then normalize: normalized exchange = attributable raw exchange × declared reference quantity / accepted hand-off product quantity on the same boundary and measurement basis. Apply perennial-establishment and shared-operation attribution before this normalization. Never set an internal-transfer quantity equal to the final reference quantity. Per declared reference flow means the amount, unit and product state in section 3; the data package must declare its actual route and gate.

Data Collection Protocols

protocol_id	process_id	flow_role	record_type	raw_fields	collection_method	unit	frequency	temporal_coverage	site_scope	aggregation_rule	quality_evidence
cp_field_activity_records	canary_seed_field_production	seed, nutrients, irrigation, fuel, crop protection, land	field log, invoice, application record, meter, or contractor record	field_id; area; cultivar; input_product; amount; nutrient_content; date; operation; contractor_scope	reconcile physical inputs and operations to every represented field and crop cycle; Raw aggregation and attribution: sum by physical identity; calculate nutrients without merging products; normalize with same-cycle area and yield crop_protection_input_specific_input: Operation canary_seed_field_production: Record each herbicide, fungicide, insecticide, desiccant, or other formulation by product identity and application event. Retain active ingredients and product identities before aggregation. Original quantity method: measured or invoiced product mass by formulation, summed by field and converted to the reference flow Identify the actual input for this operation from supplier specifications, equipment and primary records. This is a mandatory collection requirement, not an exchange. Before dataset completeness, represent each used material, formulated product, carrier or independently purchased service by one physically specific card with its native quantity/property; confirm a compatible UUID, or retain an explicit unresolved identity and do not claim a fully linked dataset. Do not substitute a conditional example for an unknown actual input, invent a recipe, omit required use or infer zero from missing records. Attribute shared use, reusable assets and inclusive services once; preserve the original stage/period and measured throughput link to final reference output. The former aggregate range is not a component limit or consumption default.	kg; kg nutrient; L; m3; ha	each event	complete crop cycle	all represented fields	per declared reference flow	invoices; labels; calibrated meters; field logs
cp_harvest_output_records	canary_seed_field_production	grain and removed residue	weighbridge, yield monitor, moisture test, bale record	field_id; harvest_date; grain_mass; grain_moisture; impurity; residue_mass; residue_moisture; residue_fate; destination	reconcile accepted grain and each residue destination to field area and crop cycle; Raw aggregation and attribution: sum accepted grain and each residue fate separately	kg; percent; ha	each harvest	complete crop cycle	all represented fields	per declared reference flow	scale or yield-monitor calibration; moisture tests; destination evidence
cp_field_emission_activity	canary_seed_field_production	emissions to air and water	nutrient, soil, weather, residue, drainage, and emission-model records	fertilizer_N; organic_N; residue_N; application_method; soil; climate; drainage; factor_set; model_version	Within each compatible route/product/state, calculate attributable raw totals by field first. Aggregate final intensity = sum(attributable raw quantities) * declared reference quantity / sum(matched accepted final outputs). When source quantities are per-ha rates e_h and y_h, first recover raw totals as e_harea and y_harea; do not area-weight field totals again. A per-product intensity is weighted by its matched output, not area or an unweighted mean. Apply existing allocation once, preserve period/throughput and all source-unit conversions, and keep incompatible routes separate.	kg N; kg emission; ha	each event and crop-cycle calculation	complete crop cycle	all represented fields	per declared reference flow	source records; factor provenance; model file; nitrogen-balance review
cp_residue_and_waste_fate	canary_seed_field_production	retained and removed residues	field residue log, bale ticket, burn or incorporation record	field_id; residue_mass; dry_matter; fate; destination; date	link residue fate to the same harvest and field records used for yield; Raw aggregation and attribution: sum by fate; exclude retained residue from co-product outputs	kg; percent; ha	each field and harvest	complete crop cycle	all represented fields	per declared reference flow	field records; destination receipts; residue calculation evidence
cp_conditioning_records	canary_seed_grain_conditioning	incoming grain, energy, accepted grain, screenings, rejects	batch ticket, scale, moisture test, electricity or heat meter, destination record	batch_id; incoming_mass; incoming_moisture; electricity; heat; accepted_mass; accepted_moisture; screenings; rejects	reconcile matched conditioning batches and meters to accepted output; Raw aggregation and attribution: sum matched batches; allocate shared meters by time or processed mass; close wet-mass balance	kg; percent; kWh; MJ	each batch or meter period	all pre-gate conditioning	all included equipment and batches	per declared reference flow	calibrated scales and moisture meters; meter reconciliation
cp_declared_reference_handoff	declared_reference_handoff	reference_product_at_declared_handoff	handoff weighing and acceptance records	route, terminal_output_row_id, product_state, gate, lot, net_mass_kg, moisture_basis, acceptance, tare	Use calibrated scales or traceable weighing records; reconcile the actual terminal-operation handoff lot, accepted net mass, product state and moisture; exclude packaging tare and do not sum preceding-stage quantities.	kg	each handoff lot	declared reporting period	declared handoff gate	per declared reference flow	calibration or weighing tickets, acceptance and lot traceability

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
calc_area_to_reference_flow	field flows	crop-cycle amount per hectare / marketable grain yield per hectare × 1,000 kg	flow amount; area; same-cycle grain mass	amount per 1,000 kg reference grain
calc_nutrient_content	fertilizer and amendment inputs	product mass × declared nutrient fraction; preserve N, P2O5, and K2O reporting bases	product identity; mass; assay; reporting basis	nutrient amount by source
calc_managed_soil_n2o	soil N2O	apply selected IPCC tier or regional method to fertilizer N, organic N, returned-residue N, volatilization, and leaching pathways	nitrogen activity; residue fate; soil and climate; factors	kg N2O by pathway	ipcc-2019-managed-soils
calc_ammonia_volatilization	ammonia to air	calculate by fertilizer type, application method, timing, and applicable factor	nitrogen product records; application details; factors	kg NH3	emep-eea-2023-guidebook
calc_nitrate_loss	nitrate to water	apply selected regional drainage or leaching method to nitrogen activity and hydrological records	nitrogen activity; soil; drainage; climate; factors	kg NO3-	ipcc-2019-managed-soils
calc_conditioning_mass_balance	grain conditioning	incoming wet grain = accepted grain + useful screenings + rejects + moisture and other measured losses within uncertainty	masses; moisture; loss records	reconciled outputs per accepted grain	mass-balance-identity
calc_moisture_adjustment	grain and residue mass	convert between as-received and declared dry-matter bases using measured moisture; retain original and converted values	mass; moisture; target basis	adjusted mass	mass-balance-identity
chemical_species_mass_accounting	elementary_nutrient_emissions	Final elementary exchanges use the mass of the identified substance and one actual receiving compartment. Keep nutrient/activity ledgers separate: species-specific N2O-N × 44/28 gives N2O, NH3-N × 17/14 gives NH3, nitrate-N × 62/14 gives nitrate, and phosphate-P × 95/31 gives phosphate. If the selected flow is elemental phosphorus instead, report kg P and convert phosphate mass by 31/95 only when that species basis is evidenced. Apply a conversion exactly once only when the method output is on the elemental basis; measured compound mass is not reconverted. Total nutrient losses cannot be assigned to a single species without a supported split, and residual/retained soil nutrient is not an emission. Keep direct/indirect pathway ledgers and avoid repeating a pathway already included in the chosen method or upstream inventory. Factor uncertainty ranges screen factors on their stated basis, not final compound amounts or admissible site emissions. Normalize the attributable compound mass once using the accepted reference quantity and the matched measured output. Unknown activity, identity or compartment remains an evidence gap and blocks a completeness claim.	cp_field_emission_activity; species-specific activity ledger, method pathway and factor basis, matched accepted output	Identity-specific exchanges and reconciled activity records

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_product_identity	reference product	Confirm canary seed rather than wheat, rye, mixed cereal, or another bird-seed component; retain cultivar, intended use, state, and hand-off.	crop, lot, grade, and sales records
dq_temporal_alignment	all foreground rows	Use inputs, harvest, yield, emissions, residue, and conditioning records from the same crop cycle; disclose proxy years.	dated field and batch records
dq_mass_and_moisture	grain, residue, and conditioning	Retain scale or yield-monitor calibration and moisture measurements for every basis conversion.	calibration and moisture-test records
dq_quality_and_impurity	grain outputs	Retain inspection or laboratory evidence for impurity, dockage, treated-seed status, variety, odour, damage, and intended-use quality.	grading or laboratory records
dq_completeness	process map and flows	Reconcile every field and conditioning batch and distinguish zero, not applicable, proxy, and missing values.	field roster; batch reconciliation
dq_identity_resolution	parameterized and unmapped flows	Verify each actual exchange against its concrete flow UUID, physical state, property and unit; preserve explicit unresolved identities when confirmation is unavailable.	identity review record

9. Validation Rules

rule_id	Applies to	Rule	source_ids
validation_reference_output	terminal output	Exactly one terminal canary seed grain output equals 1,000 kg after scaling, uses the fixed reference UUID, and declares moisture and quality qualifiers.
validation_process_route	process map	Include field production once; include conditioning only before farm-gate hand-off and avoid double counting embedded energy, incoming grain, or rejects.
validation_crop_cycle_reconciliation	field inventory	Area, inputs, harvest outputs, residue fates, and emissions refer to the same fields and crop cycle.
validation_nitrogen_balance	nitrogen inventory	Reconcile nutrient content, returned and removed residue nitrogen, and emission pathways with methods and factors disclosed.	ipcc-2019-managed-soils
validation_quality_state	grain identity and output	State whether grain is gross harvested, cleaned, dried, or otherwise conditioned; keep impurity and moisture bases consistent with the declared reference state.	cgc-canary-seed-grading-2026
validation_conditioning_balance	conditioning	Reconcile incoming grain with accepted grain, useful screenings, rejects, moisture loss, and other measured losses within uncertainty.	mass-balance-identity
validation_flow_identity	every flow	Verify each actual exchange against its concrete flow UUID, physical state, property and unit; preserve explicit unresolved identities when confirmation is unavailable.

10. Published Dataset Profile

Field	Value
dataset_role	foreground canary seed grain production dataset
downstream_use	secondary_dataset; background_dataset after review and publication
allowed_use	farm-gate LCA of canary seed grain and downstream systems preserving declared geography, moisture, impurity, residue, allocation, and conditioning context
excluded_use	certified seed, whole-crop forage or silage, milling, prepared bird feed, or another crop without reviewed proxy decision
required_metadata	geography; cultivar or variety; crop year; area; yield; moisture; impurity; intended use; seeding; nutrients; crop protection; fuel; irrigation; residue fate; conditioning; allocation; identity resolution
required_quality_disclosure	foreground coverage; proxy inputs; missing records; range exceedances; emission methods; meter and mass-balance reconciliations; grade or laboratory evidence
update_trigger	new reviewed canary seed evidence, material route change, revised emission method, changed concrete flow identity verification

11. Data Sources

Source id	Type	Reference	Used for
saskatchewan-canary-seed-guide	official_guidance	Government of Saskatchewan, Canary Seed specialty crop guidance, https://www.saskatchewan.ca/business/agriculture-natural-resources-and-industry/agribusiness-farmers-and-ranchers/crops-and-irrigation/field-crops/specialty-crops/canary-seed	crop identity, production route, seeding context, and field-management disclosure
cgc-canary-seed-grading-2026	official_guidance	Canadian Grain Commission, Official Grain Grading Guide, Chapter 23: Canary seed, effective August 1, 2026, https://www.grainscanada.gc.ca/en/grain-quality/official-grain-grading-guide/23-canary-seed/grading.html	clean-sample definition, impurity, treated-seed, variety, quality, conditioning, and grading qualifiers
ipcc-2019-managed-soils	method_factor	IPCC, 2019 Refinement to the 2006 IPCC Guidelines, Volume 4, Chapter 11, https://www.ipcc-nggip.iges.or.jp/public/2019rf/pdf/4_Volume4/19R_V4_Ch11_Soils_N2O_CO2.pdf	soil N2O, residue nitrogen, volatilization and leaching pathways, and double-counting controls
emep-eea-2023-guidebook	method_factor	European Environment Agency, EMEP/EEA Air Pollutant Emission Inventory Guidebook 2023, https://www.eea.europa.eu/en/analysis/publications/emep-eea-guidebook-2023	agricultural ammonia and air-emission method context
iso-14044-2006	standard	ISO 14044:2006, Environmental management — Life cycle assessment — Requirements and guidelines	allocation hierarchy and disclosure
mass-balance-identity	method_factor	Conservation of mass applied to matched canary seed conditioning batches	moisture adjustment, conditioning mass balance, and validation

source_id	type	reference	used_for
declared-handoff-measurement-definition	method_factor	This PCR, Sections 3, 6 and 8: measured net mass at the same state and gate is its own normalization denominator, giving a mass ratio of 1; handoff measurement adds no physical processing.	Same-stage and handoff measurement identities; a definition, not an observed yield, empirical default or external publication.
fao-fertilizer-identities	official_guidance	FAO Fertilizer Specifications, https://www.fao.org/agriculture/crops/thematic-sitemap/theme/spi/plantnutrition/fertspecs/en/	conditional concrete identities and method context; does not establish site use or quantities
fao-organic-nutrients	official_guidance	FAO How to Make and Use Compost, https://www.fao.org/4/i2230e/i2230e.pdf	conditional concrete identities and method context; does not establish site use or quantities