Nitrogen loss pathways in anaerobic soils and mitigation approaches through inhibitors - a review

• Main Authors: Ahmad Khariri, Rosmarina, Yusop, Mohd Khanif, Musa, Mohamed Hanafi, Hussin, Aminuddin, Abdul Rahim, K. B.
• Format: Article
• Language: English
• Published: IDOSI Publications 2016
• Online Access: http://psasir.upm.edu.my/id/eprint/52436/1/Nitrogen%20loss%20pathways%20in%20anaerobic%20soils%20and%20mitigation%20approaches%20through%20inhibitors%20-%20a%20review.pdf; http://psasir.upm.edu.my/id/eprint/52436/; https://www.idosi.org/aejaes/aejaes16(4)16.htm

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.