AG-003： Mitigation of N2O emissions from tea land soil by applying chemical fertilizers containing
nitrification inhibitor
[Mitigation method]

Mitigate N2O emission from tea land soil by applying chemical fertilizer containing nitrification inhibitor or
compound fertilizer containing lime nitrogen, thereby reducing the amount of fertilizer used before and project
implementation.
[Eligibility criteria]
①
The chemical fertilizer containing nitrogen other than lime nitrogen or the organic fertilizer before project
implementation are replaced with chemical fertilizer mixed with dicyandiamide or compound fertilizer containing
lime nitrogen.
Tea is cultivated in soil applied chemical fertilizer containing nitrification inhibitor or compound fertilizer containing
lime nitrogen.
There must be no changes in the fertilization method or the management method for defoliation and pruning
observed before and after the project implementation.
Data on the average amounts of fertilizer application are available at least for one year prior to the project
implementation.
②
③
④
[Baseline emissions approach]

GHG emissions that would be emitted if the chemical fertilizer containing nitrogen or the organic fertilizer were
applied to the tea land soil rather than chemical fertilizer containing nitrification inhibitor or compound fertilizer
containing lime nitrogen.
[Main monitoring items]

Area applied with the chemical fertilizer containing nitrification inhibitor or the compound fertilizer containing lime
nitrogen and the average application amount of the fertilizer after project implementation
Amounts of nitrogen and dicyandiamide in the chemical fertilizer containing nitrification inhibitor or the compound
fertilizer containing lime nitrogen applied during the project
Area applied with the chemical fertilizer and the average application amount of chemical fertilizer before project
implementation


[Diagram of methodology]
Baseline
Chemical fertilizer containing nitrogen other
than lime nitrogen
Organic fertilizer
Post-project
N2O
Chemical fertilizer containing
nitrification inhibitor or compound
fertilizer containing lime nitrogen
N2O