Impact of foliar spray of zinc in nano form on lentil grown under residual fertility of preceding rice

Abstract

Field trials were carried out during the rabi season of 2018-19 and 2019-20 to observe the combined impact of recommended fertilizer dose with or without nano zinc on lentils under residual soil status of preceding rice. The experiment was designed in split-plot with three replications holding sixteen treatment combinations viz. residual effect of eight treatments applied in rice as main plot factors and recommended dose of nutrients with and without nano zinc spray in lentil in two treatments as subplots factors. Experimental results revealed that better growth, yield associating traits and yield of lentil was found in the residual effect of integrated nutrient management treated plots with foliar application of nano zinc. Among the main plot factors residual effect of 50% RDN via synthetic fertilizer + 50% via FYM applied in preceding rice achieved the maximum seed yield and between the subplot factors significantly higher seed yield was obtained from recommended dose of nutrients with nano zinc spray in lentil which was increased by 11.11% than without nano zinc sprayed treatments.