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Changes in Fertilizer Management

2.1

The American Carbon Registry (ACR) has published a Methodology for N2O Emissions Reductions from Changes in Fertilizer Management.

The methodology details requirements for quantification of GHG emissions reductions in the agriculture sector resulting from changes in how fertilizer is applied and used. It incorporates site specific data into a peer-reviewed, tested and highly parameterized model, the Denitrification-Decomposition (DNDC) model, to quantify direct N2O emissions as well as indirect emissions from leaching and ammonia volatilization.

This methodology is applicable to Agricultural Land Management (ALM) ACR project activities that involve a change in fertilizer management including changes in fertilizer rate, type, placement, timing, use of timed-release fertilizers, use of nitrification inhibitors, and other factors.

ACR has closed the public comment period and initiated scientific peer review for v2.1 of its Methodology for N2O Emission Reductions through Changes in Fertilizer Management. Upon final approval and publication this version will replace v2.0. The methodology’s purpose, scope, applicability conditions, eligible practices, and quantification approach remain unchanged overall. ACR has made updates and clarifications to improve the flexibility of the methodology by providing eligibility criteria for other greenhouse gas quantification models in addition to DNDC. Upon final approval and publication this version will replace v2.0.

Current approved version

Process documentation

Reference documents

14. Agriculture, Forestry, Land Use
Contents
File PDF documentACR Methodology for N2O Emission Reductions through Changes in Fertilizer Management - PEER REVIEW COMMENTS AND RESPONSES
File PDF documentACR Methodology for N2O Emission Reductions through Changes in Fertilizer Management - PUBLIC COMMENTS AND RESPONSES
File PDF documentACR Methodology for N2O Emission Reductions through Changes in Fertilizer Management v2.0 FINAL
File PDF documentACR Methodology for N2O Emission Reductions through Changes in Fertilizer v2.0 FOR PUBLIC COMMENT
File PDF documentSummary of changes in ACR Fertilizer v2.0
File PDF documentchanges in fertilzer management v1.0 public comments
File PDF documentchanges in fertilzer management v1.0 peer review
File PDF documentchanges in fertilizer management v1.0 final
File PDF documentchanges in fertilzer management v1.0 public comment draft
File PDF documentPotential for development of simplified methodology for N2O from fertilizer
File PDF documentACR Changes in Fertilizer Management v2.1 redline
File PDF documentACR Fertilizer Management summary of changes

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