Summary
This field study evaluated the effectiveness of DMPP (a nitrification inhibitor) applied with cattle manure for mitigating climate impacts under drought conditions on sandy soil. Although DMPP did not improve crop yield or nitrogen use efficiency, the authors conclude that dry growing seasons significantly increase both nitrogen losses (12% of manure-N) and greenhouse gas emissions, and recommend nitrification inhibitors as a climate change mitigation strategy for such conditions.
Regional applicability
The study's focus on sandy soils and low-rainfall conditions has potential relevance to United Kingdom regions with light soils and variable precipitation, though the specific rainfall and soil characteristics of the study site would need to be confirmed to assess direct applicability to UK farming conditions.
Key measures
Yield-scaled global warming potential, nitrogen leaching (% of manure-N), biomass, nitrogen use efficiency, greenhouse gas emissions
Outcomes reported
The study measured greenhouse gas emissions, nitrogen leaching losses, crop yield, and nitrogen use efficiency in response to cattle manure application with and without the nitrification inhibitor DMPP under low-rainfall conditions on sandy soil.
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