On-Farm Nitrification Inhibitor Application to Urine Patches in Reducing Nitrous Oxide Emissions
農場における尿パッチへの硝化抑制剤散布による亜酸化窒素排出削減 (AI 翻訳)
S. Saggar, Thilak Palmada, P. Berben, Lìyǐn L. Liáng
🤖 gxceed AI 要約
日本語
本研究は、放牧された牧草地の尿パッチに硝化抑制剤（DCDおよびDMPP）を異なる量と濃度で散布し、亜酸化窒素（N2O）排出削減効果を評価した。従来よりも高い施用率が必要であること、抑制剤の残留基準を考慮した最適濃度の決定が重要であることを示唆している。
English
This study evaluates the effect of varying rates and volumes of nitrification inhibitors (DCD and DMPP) applied to urine patches in grazed pastures to reduce nitrous oxide (N2O) emissions. It finds that higher application rates than previous studies are needed for effective reduction, and emphasizes balancing efficacy with maximum residue limits.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本でも畜産由来のN2O排出は重要課題であり、本研究成果はスポット的な抑制剤散布による農業GHG削減の可能性を示す。ただし、日本の飼養形態や土壌条件に合わせた適用検証が必要。
In the global GX context
This research demonstrates precision application of nitrification inhibitors to urine patches as a scalable solution for agricultural N2O mitigation, a key GHG under the Paris Agreement. It highlights the need for optimizing inhibitor rates to balance efficacy and residue safety.
👥 読者別の含意
🔬研究者:Provides insights into optimal inhibitor concentrations and residue concerns for targeted N2O mitigation in grazed pastures.
🏢実務担当者:Offers a practical method (Spikey) for on-farm N2O reduction, but requires calibration for local conditions.
🏛政策担当者:Highlights the need for regulation of inhibitor residues and potential inclusion in agricultural N2O reduction policies.
📄 Abstract（原文）
In livestock-grazed pastures, urine patches are a major contributor of nitrous oxide (N2O) emissions, and the use of nitrification inhibitors (NIs) has the potential to reduce N losses from urine patches using New Zealand (NZ)-devised Spikey®—a ground-based machine that measures the change in soil conductivity from the deposited urine patches. Our ongoing research suggests that the efficacy of on-farm targeted NIs treatment requires suitable inhibitor concentrations within urine patches to be achieved to reduce N2O emissions. This study evaluates the effect of varying NI rates and volumes on reducing N2O emissions. The application rates for NIs were 1.6 g and 3.2 g dicyanamide (DCD) patch-1 and 0.96 g and 1.92 g of 3, 4-dimethylpyrazole phosphate (DMPP) patch−1, using 100, 150, and 200 mL inhibitor solutions. These rates were higher than those used in previous studies to ensure an adequate supply of inhibitors above the threshold concentration within the urine patch and to enhance the inhibitor efficacy in reducing N2O emissions. This study points to two important aspects: Determine the optimum inhibitor concentration required to eliminate, minimise/reduce N2O emissions and ensure that at the optimised amounts of inhibitor application rates, inhibitor residues are below their maximum residue level (MRL) in the food chain and environment, and eliminate their potential harm to human health.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.3390/agronomy16070701first seen 2026-05-05 22:07:24
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