A field experiment was carried at Department of Agronomy, Annamalai University during kharif season of 2019 to study the influence of foliar application for maximizing the yield of blackgram. The experiment was laid out in Randomized block design with three replications and eight treatments of foliar sprays viz., Control, Panchagavya @ 2 %, Vermiwash @ 5 %, Fish aminoacid @ 0.5 %, Egg extract @ 0.5 %, Seaweed extract @ 5 %, TNAU pulsewonder @ 1 % @ pre flowering stage and Humic and Fulvic acid @ 2 %. At 30 and 45 DAS, foliar sprays were administered. The results showed that foliar spraying of different nutrients changed the yield and characteristics of blackgram considerably. Vermiwash @ 5% had the highest values among the different foliar treatments, which were comparable to panchagavya, followed by TNAU pulse wonder 1 % At pre flowering stage. The treatment had the highest grain yield (975 kg ha-1), haulm yield (1530 kg ha-1), harvest index (39%), number of pods plant-1 (16.70), and number of seeds pod-1 (5.64) among all foliar spray treatments, with the lowest value at control.