Agricultural greenhouse gas work considers relevant biological processes and land use alongside fuel and electricity. Results should represent a defined period and production boundary.
Depending on production, fertiliser, soil management, livestock, energy, input manufacture or land use may also matter. Determine sources within organisational or product boundaries. Relying only on easy-to-find invoices can leave gaps. Explain the sector method and reasons for exclusions.
Soils, irrigation, yields, fertilisation and seasonal conditions can differ. Define plot-level data first and justify aggregation and weights. High yield on one plot does not fill another's data gap. State whether the result represents the farm, a crop or a sales batch.
Purchases, stock carryover and actual use may differ. Compare composition, application dates, plots and quantities. Do not count stored fertiliser as applied or omit opening stock. Where estimates are necessary, disclose sources, assumptions and uncertainty.
Review the method's boundary, measurement or modelling, time and durability conditions. One sample or a generic factor does not establish a definitive removal claim. Inventory accounting and credit generation may follow different rules. Assess the risk of several parties counting the same benefit.
Some inputs may remain similar while yield falls, increasing their allocation per product unit. Examine total emissions and intensity together. Explain climate, yield and practice effects. Use consistent boundaries and methods across years rather than selecting only a favourable season for a general performance claim.
Record practice changes separately from methodological changes. Assess comparability and revisit required period data. For example, track the 2027 replacement of GHG Protocol agricultural guidance by the new land-sector standard in reporting plans. Do not present results prepared under an earlier method as using the current one.
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