Studies on influence of INM practices on yield attributes, yield and nutrient uptake of Blackgram
1*V.T. Mukeshkumar, 1P. Sudhakar, 1K. Arivukkarasu and 2A. Kamaraj
1Department of Agronomy, 2Department of Genetics and Plant breeding, Faculty of Agriculture, Annamalai University, Tamil Nadu – 608002 (India) Email: (Mukeshv.t143@gmail.com) Or (Sudha.au.in@gmail.com)
ABSTRACT
A field experiment was conducted to study the effect of different levels of N and foliar application of nutrients on yield attributes, yield and nutrient uptake of irrigated blackgram during July – September 2021 at kasthambadi village, Polur taluk, Tiruvannamalai district. The experiment was laid out in randomized block design (RBD) and replicated thrice. The experiment consisted 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). The results revealed that the higher yield attributes was recorded in treatment with 100% RDN + foliar application of 2% DAP on 30 and 45 DAS (T6) and the lowest was recorded in control plot (T1). Higher nutrient uptake of NPK was observed in 100% RDN + foliar application of 2% DAP on 30 and 45 DAS (T6) and lower uptake was recorded in control plot (T1).