Impact of integrated nutrient management on nutrient content and their uptake by black gram crop (Vigna mungo L.)

Abstract

To study the effect of integrated nutrient management practices on nutrient content and their uptake by black gram crop, a field experiment was carried out during the kharif of 2023 at Research Farm of the School of Agriculture, Abhilashi University, Chail Chowk, Mandi (H.P.). The experiment was laid out in randomized block design with nine treatments and three replications. The different treatment combinations used in experiment were- T1= Absolute control, T2=100% RDF, T3=100% RDF + Rhizobium, T4= Rhizobium + 75% RDF + 25% N by FYM, T5= Rhizobium + 75% RDF + 25% N by Vermicompost, T6= Rhizobium + 50% RDF + 50% N by FYM, T7= Rhizobium + 50% RDF + 50% N by Vermicompost, T8= Rhizobium + 50% N by FYM + 50% N by Vermicompost and T9= 50% N by FYM + 50% N by Vermicompost. The study of data of results revealed that the application of various integrated nutrient management treatments showed non-significant effect on content of nitrogen, phosphorus and potassium, however, treatment T3 noted highest content of these nutrients in grains and straw of black gram crop. Whereas, the application of treatment T3 recorded the maximum uptake of nitrogen, phosphorus and potassium by grains, straw as well as total uptake by black gram crop. While, the minimum content of nitrogen, phosphorus and potassium in grains and straw of black gram along with their uptake by grains, straw and total uptake by black gram crop was found under treatment T1 during the field experiment.