Ecology, Environment and Conservation Paper

Vol.29, Nov, Suppl, Issue, 2023; Page No.(S372-S377)

ASSESSING THE GROWTH AND YIELD OF GREEN GRAM (VIGNA RADIATA L.) UNDER SODIC SOIL THROUGH SOIL AMENDMENTS AND FOLIAR NUTRITION

R. Mohanapriya, R. Kalpana, A. Alagesan, K. Vijay Aravinth, M. Guna and M. Silambarasan

Abstract

Among pulses green gram is most suitable crop for barren land cultivation and is grown all over India. But production and productivity of crop was very low in salt affected soils due to the presence of high levels of salt accumulation in cation exchange complexes. Under these circumstances, application of soil amendments and foliar nutrition is one of the important agricultural practices that can be used in integrated nutrient management approach. To enhance the productivity under sodic soil condition, a field experiment was conducted at Anbil Dharmalingam Agricultural College and Research Institute, Tiruchirappalli during summer 2022 to study the effect of soil amendments and foliar nutrition on growth, physiological parameters, soil enzymes, NPK uptake and yield of green gram. The experiment was laid out in split plot design with three replications. The treatments comprised of different soil amendments in main plots and three foliar spray combinations in sub plots. The results showed that, Gypsum @ 50 % GR + Press mud @ 10 t ha-1+ FS of Brassinosteroid 0.2 ppm @ 30 DAS registered significantly higher of mean values dry matter production (3425 kg ha-1), root nodules plant-1 (12.75 at 45 DAS), SPAD value (30.25), leaf area index (3.87), crop growth rate (9.39 g m-2 d-1) at 45-65 DAS. The same combination recorded higher NPK uptake by crop, grain and haulm yield (1110 & 2175 kg ha-1) with lower proline content (1.15μg g-1) over farmers practices (FP). However, Gypsum @ 50 % GR + CSR GROMOR @ 25 kg ha-1 + FS of Brassinosteroid 0.2 ppm @ 30 DAS produced on par yield.