SINGH, Y. V., and S. K. SHARMA. “Available Nitrogen and Methane Emission from Soils Amended With Organic Manures and Urea in Rice-Wheat System”. Journal of Soil and Water Conservation 18, no. 3 (September 30, 2019). Accessed July 3, 2026. https://epubs.icar.org.in/index.php/JSWC/article/view/107668.