Author(s):

Dinesh Kumar Yadav, Devendra Singh, Anup Kumar Choubey and RK Raj

Abstract: A field experiment was conducted during kharif 2015 at the experimental farm, Tirhut College of Agriculture, RPCAU, Pusa, Bihar to study the effect of micro and secondary nutrients on growth, yield and quality of blackgram (Vigna mungo (L.) Hepper) the experiment was laid-out in a randomized block design (RBD) with eight treatments, each having four replications. The treatments were T₀: RDF (control), T₁: RDF + B, T₂: RDF + Zn, T₃: RDF + S, T₄: RDF + B + Zn, T₅: RDF + B + S, T₆: RDF + Zn + S and T₇: RDF + Zn + B + S. Uniform basal application was made with 20 kg N ha^-1, 40 kg P₂O₅ ha^-1, 20 kg K₂O ha^-1 through urea, DAP and MOP, respectively. Sulphur, Zn and B were applied @ 20, 5 and 1.5 kg ha^-1 from Bentonite-S, Zinc sulphate and Di-sodium tetra-borate pentahydrate, respectively. Plant height at 40 DAS, number of branches plant^-1, number of nodules plant^-1 at 40 and 50 DAS, grain yield kg ha^-1, straw yield kg ha^-1, urdbean significantly affected due to various treatments except plant population, plant height at harvest, number of nodules at 60 DAS and harvest index. The higher grain yield (838 kg ha^-1) and straw yield (2472 kg ha^-1) were obtained due to application of Zn + B + S.

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