Response of NPK, Zinc and Boron Fertilization on Growth, Yield Attributes and Nutrient Uptake by SUMMER GREEN GRAM (Vigna radiate L.) in an Inceptisol of Prayagraj, (Uttar Pradesh)

Abstract

The study pertaining to the present topic under field investigation entitled “Response of N, P, K, Zinc and Boron fertilization on Soil Health, Growth and Yield attributes of Summer Green gram (Vigna radiata L.) in an Inceptisol of Prayagraj, Uttar Pradesh)” for two consecutive years, beginning from summer seasons of the years 2021 and 2022 at Research Farm, Department of Soil Science and Agricultural Chemistry. The excavated soil sample from the experimental site before conducting research operation, mentioned that, the land topography range was nearly level with a 1-3% slope; the soil is of sandy loam texture with neutral to alkaline in reaction. Among eleven treatments, during field experimentation, the conjunctive use of Nitrogen, Phosphorous, Potassium (NPK) and different micronutrients (Zinc and Boron) levels, together came with the best results significantly. However, the growth factors including pre-harvest parameters i.e. height of plant (48 cm), number of branches plant-1 (14) and number of pods plant-1 (28.63) opined significantly higher in treatment (T11) registering RDF (recommended dose of fertilizer) (20:40:20 NPK kg ha-1)+ Zinc@6 kg ha-1+ Boron @3 kg ha-1, which in turn influenced in achieving highest mean of the number of grains pod-1 (12.11), protein content (25.12 %) and weight of 100 grains (6.26 gm), which ultimately gave the highest cumulative mean of grain yield (1594.37 kg ha-1), straw yield (2974.88 kg ha-1), biological yield (4569.24 kg ha-1), harvest index (37.04 %), NPK, Zinc and Boron uptake in green gram grain i.e. N 36.28 and 38.18, P 5.46 and 5.73, K 11.84 and 12.47 kg ha-1 while Zn 91.97 and 92.19, B 45.75 and 45.94 g ha-1, respectively during two years and straw which was N 30.77 and 31.44, P 3.92 and 4.36, K 23.43 and 23.99 kg ha-1 while Zn 67.27 and 67.48 and B 63.08 and 63.15 g ha-1, respectively, net returns of 85,511.55 and 86,837.50 (Rs ha-1), wider B:C ratio (1:2.73 and 1:2.77) as compared to rest of treatments.