Optimizing Growth and Yield of Blackgram (Vigna mungo L.) Through Combined Weed and Foliar Nutrient Management

Abstract

This study investigates the assessment of the Combined Influence of Weed Management and Foliar Nutrition Strategies on the Growth and Yield Traits of Blackgram. The treatment was imposed in a factorial randomized block design (FRBD) with 12 treatments and 3 replications. The experiment was carried out at the experimental farm Department of Agronomy, Faculty of Agriculture, Annamalai University, Chidambaram, Tamil Nadu, India, during the period from April to July 2024, using the blackgram variety VBN-8. The results of the experiment revealed that among the different treatments tested. Early post-emergence application sodium acifluorfen @160 g a.i ha-1 + clodinofob propargyl @ 80 g a.i ha-1 on 15 DAS + Hand weeding on 30 DAS + vermiwash @ 10 % on 30 and 45 DAS recorded with highest plant height (30.66,57.53), leaf area index (1.93, 2.86), dry matter production (1752 kg ha-1), effective root nodules(25.4), pod length (5.91) number pods per plant (12.67), Grain yield (730 kg ha-1) and haulm yield(1535 kg ha-1) and it excelled all the others treatments. The research concludes that treatment Early post-emergence application of sodium acifluorfen @160 g a.i ha-1 + clodinofob propargyl @ 80 g a.i ha-1 on 15 DAS + hand weeding on 30 DAS + vermiwash @ 10 % on 30 and 45 DAS(A4B2) was most effective method in control weeds and recorded higher grain yield.