“…Current application rates of N, P, K, S, and Zn are 180 (120+60), 18 (14+4), 87 (58+29), 14 (8+6) and 1 (1+0) kg/ha/yr, respectively applied as urea, triple super phosphate, potassium chloride, gypsum, and zinc oxide (Mostofa et al, 2015). Cow dung was mixed with rice straw applied once a year 10-15 days prior transplantation of Boro rice at a rate of 5 t/ha fresh material (1-1.5%N, 0.3-0.4%P and 1-1.5%K).…”