Effect of bioslurry on transplanted aus rice under rainfed condition in Sylhet

Abstract

An experiment was conducted in farmer’s field with the aim to evaluate the effect of integrated use of bioslurry and inorganic fertilizer on the agroeconomic performance of transplanted aus rice (t. aus) (cv. BRRIdhan42) in AEZ 20. The trial was laid out in a randomized complete block design with three replications. There were three treatments viz., T₁: soil test based inorganic fertilizer dose for high yield goal (HYG), T₂: cowdung (CD) slurry @ 5 t ha^-1 with integrated plant nutrition system (IPNS) basis inorganic fertilizer dose for HYG and T₃: Farmer’s practice (average of 20 farmers fertilizer dose). The highest mean grain yield (3.93 t ha^-1) of t. aus rice was obtained from the treatment T₂ followed by T₁ (3.46 t ha^-1). Gross return, gross margin and benefit cost ratio were also observed higher in T₂. Therefore, fertilizer package NPKSZn @ 56-4-20-9-1 kg ha^-1 + cow dung slurry @ 5 t ha^-1 in IPNS approach might be helpful for getting higher grain yield of t. aus rice and maintaining sustainable soil health as well.

Bangladesh J. Agril. Res. 42(3): 467-474, September 2017