Influence of nano urea on growth, yield and quality of pigeon pea

Abstract

The field experiment was conducted at ZARS, GKVK, Bangalore, Karnataka, India during Kharif 2021 on influence of nano urea on growth, yield and quality of pigeonpea. Results indicated that application of RDF (Nano Urea) + foliar application of ZnSO4 @ 0.5% + ZnSO4 @ 0.5% resulted significantly higher number of pods plant-1 (116.2), pod yield (52.3 g plant-1), pod bearing length plant-1 (64.7 cm) seed yield (1179 kg ha-1) and stalk yield (4568 kg ha-1) and higher uptake of nutrients (kg ha-1) i.e., nitrogen (111.5), phosphorus (16.9) and potassium (82.3) hence higher nutrient use efficiency (kg grains kg-1 nutrient applied) i.e., nitrogen (93.0), phosphorus (23.58) and potassium use efficiency (47.16) and across the different phenophases of crop, from 120 DAS till harvest higher values of absolute growth rate (1.97 g plant-1 day-1), crop growth rate (14.57 g m-2 day-1) and relative growth rate (0.012 g g-1 day-1) were observed.