Vol. 11, Issue 9 (2022)

Author(s):
Tamil Vani T, R Raman, S Kandasamy and E Balaji

Abstract:
A field experiment was carried out in a farmer's field of Vadakadu Village, Alangudi Taluk, Pudukkottai District, Tamil Nadu during June – August of 2021 with VBN 10 blackgram cultivar to study the effect of micronutrients on growth parameters of irrigated blackgram (Vigna mungo L.). The experiment was laid out in a Randomized Block Design with three replications. The experiment consists of nine treatments viz., T₁ - Recommended dose of fertilizer, T₂ - RDF + Basal application of zinc chelate @ 500 g ha^-1, T₃ - RDF+ Foliar application of zinc chelate @ 0.5% on 30 and 45 DAS, T₄ - RDF + Basal application of Zinc sulphate @ 10 kg ha^-1, T₅ - RDF + Foliar application of Zinc sulphate @ 0.2% on 30 and 45 DAS, T₆ - RDF + Basal application of Borax @ 5 kg ha^-1, T₇ - RDF + Basal application of Borax @ 10 kg ha^-1, T₈ -RDF + Basal application of Borax @ 5 kg ha^-1 + Foliar application of Zinc chelate @ 0.2% on 30 and 45 DAS and T₉ - RDF + Basal application of Borax @ 10 kg ha^-1 + Foliar application of Zinc chelate @ 0.5% on 30 and 45 DAS. Among the different soil and foliar application of micronutrients, basal application of borax @ 10 kg ha^-1 with foliar application of Zinc chelate @ 0.5% on 30 and 45 DAS along with RDF performed higher number of growth attributes such as plant height (49.73 cm), leaf area index (5.12), number of branches plant^-1 (7.08) and dry matter production (3899 kg ha^-1) than control.