Low-Carbon Technologies: Improved Nitrogen Fertilizer Application to Reduce Nitrous Oxide Emissions

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N20 is emitted from fertilizers.  Improved methods of application can reduce N2O emissions (as can plant uptake of N).  Some fertilizers, such as slow-release fertilizers or fertilizers with inhibitors of soil enzymatic processes, may have reduced N2O emissions.  Applying fertilizer to the plant rather than the soil and supplying fertilizer in irrigation water are two other suggestions, though the efficacy of these methods is questioned.  Reducing the amount of N or fertilizer used would also reduce the amount of N2O released.  Increasing global fertilizer use, however, may offset any steps taken towards mitigating the release of N2O from fertilizers.