1. Integrated input management for improving nitrogen use efficiency and crop productivity;Acharya;Indian Journal of Fertilizers,2008
2. N-fertilizers and gaseous-N emission from rice-based cropping system;Adhya,2007
3. Effect of organic and inorganic sources of nitrogen on ammonia volatilization and yield of transplanted rice;Ahmed;Journal of Indian Society of Soil Science,2006
4. Studies on losses of ammonia by volatilization from nitrogenous fertilizers applied to soils;Basdeo;Journal of Indian Society of Soil Science,1976
5. FAI, 2004. Fertilizer Statistics, 2003–04, The Fertilizer Association of India, New Delhi, 2004. Available online at http://www.indiastat.com.