Mohammad S. Alam1, Mariam Khanam1 and Prof. Md. Mizanur Rahman1* 1Bangabandhu Sheikh Mujibur Rahman Agricultural University, Bangladesh Provisionally accepted: The final, formatted version of the article will be published soon. A large amount of nitrogen (N) fertilizer is required for paddy cultivation. But N use efficiency (NUE) in paddy farming is low (20-40%). Much of the unutilized N potentially degrades the quality of soil, water and air, and disintegrates the functions of different ecosystems.