Fertilizer recommendation for cauliflower production in the Bogura region of Bangladesh

Abstract

An experiment was conducted to detect fertilizer doses in cauliflower (Brassica oleracea var. botryitis, L. Family: Cruciferae) during rabi season of 2016-17. The location for the study was at the Multi location Testing (MLT) site, (medium highland under AEZ-03) Goneshpur of Shibganj upazilla under Bogura district. The experiment was laid out in randomized complete block design (RCBD) with eight dispersed replications. There were eight nutrient packages viz. T₁ = 100% NPKSZnB (STB), T₂ = T₁+ 25% N, T₃ = T₁+ 25% NP, T₄ = T₁+ 25% NK, T₅ = T₁+ 25% PK, T₆ = T₁+ 25% NPK T₇ = 75% of T₁ and T₈ = Control. The highest yield (42.11t ha-1) was obtained from the treatment T₆ which was statistically similar with the rest treatments except T₇ (35.89 t ha^-1) and T₈ (18.36 t ha^-1). In case of gross margin, the highest value, (824607) was also obtained from the treatment T₆ followed by T₃, T₁ and T₄. The treatment T₆ (T₁+ 25% higher NPK), fertilizer management practices produced higher in terms of cauliflower yield, gross return, gross margin over the other treatments. Therefore, the result revealed that recommended fertilizer dose N_138.25 P₅₀ K_{143.75 s 4.5} Zn _3.22 B _0.51 Kg ha^-1 was optimum for maximizing the yield as well as economically and environmentally viable for cauliflower cultivation in Bogura region.

Asian Australas. J. Biosci. Biotechnol. 2020, 5 (1), 1-5