Vol. 11, Issue 10 (2022)

Author(s):
Mukeshkumar VT, P Sudhakar, K Arivukkarasu and A Kamaraj

Abstract:
A field experiment was conducted at kasthambadi village, Polur taluk at Tiruvannamalai district to study the effect of different levels of N and foliar application of nutrients on growth and economics of irrigated Blackgram during July – September 2021. The experiment was laid out in randomized block design (RBD) consist of nine treatments viz., Control (T₁), 100 % RDN (T₂), 75 % RDN (T₃), 100% RDN + Foliar application of 2 % KNO3 on 30 and 45 DAS (T₄), 100 % RDN + foliar application of 2 % Humic acid on 30 and 45 DAS (T₅), 100 % RDN + foliar application of 2 % DAP on 30 and 45 DAS (T₆), 75 % RDN + foliar application of 2 % KNO3 on 30 and 45 DAS (T₇), 75 % RDN + foliar application of 2 % Humic acid on 30 and 45 DAS (T₈), 75 % RDN + foliar application of 2 % DAP on 30 and 45 DAS (T₉) and replicated thrice. The higher growth attributes were recorded in (T₆) 100 % RDN + foliar application of 2 % DAP on 30 and 45 DAS and lowest were recorded under control plot (T₁) and also maximum gross income, net income and benefit-cost ratio was observed in (T₆) 100 % RDN + foliar application of 2 % DAP on 30 and 45 DAS and lowest gross income, net income and benefit-cost ratio were achieved in control plot (T₁).