Adhikari, BB, KB Basnet, KR Dahal, and DN Yadav. “Nitrogen Use Efficiency in Rice Under Different Levels of Nitrogen and Mulching Materials”. Journal of the Institute of Agriculture and Animal Science 23 (January 1, 2002): 59–64. Accessed May 7, 2024. https://www.nepjol.info/index.php/JIAAS/article/view/743.