肥料
环境科学
硝化作用
土壤水分
反硝化
农学
尿素氨挥发
氮气
氮气循环
化学
土壤科学
生物
有机化学
作者
Rosmarina Ahmad Khariri,Mohd Khanif Yusop,Mohamed Hanafi,Aminuddin Hussin,K. B. Abdul Rahim
摘要
Nitrogen (N) is the largest yield limiting nutrient in rice cropping. Therefore, efficient N fertilizer management is critical for rice production. Nevertheless, the complex nature of N transformation in soils, has led to low N use efficiency. The lower N use efficiency of fertilizers is a result of multiple loss mechanisms such as volatilization and denitrification and it is a major problem in rice system. Low efficiency of N is not only responsible higher cost of crop production, but also a major threat to environmental quality. The use specially formulated form of fertilizer by supplemented with inhibitors have a great prospect to reduce N losses, improve fertilizer N efficiency and produce positive impact to the environment. This review discusses the N losses pathway in anaerobic rice soil, the effectiveness and mechanism of urease inhibitors as well as nitrification inhibitors to minimize the N loss.
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