Effect of micronutrients and different levels of macronutrients with Rhizobium on yield and yield attributes of mung bean

Abstract

A field experiment entitled “Effect of micronutrients application over different levels of RDF on performance of mung bean (Vigna radiata L. Wilczek)” was carried at CRC, Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut (U.P.) India, during Zaid 2019. The soil of the experimental field was well drained, sandy loam in texture and slightly alkaline in reaction. It was low in organic carbon, low in available nitrogen, medium in available phosphorus and potassium. Total twenty treatment combinations comprised of five levels of RDF (N1: Control, N2: only Rhizobium, N3: 75% RDF + Rhizobium, N4: 100% RDF, N5: 100% RDF + Rhizobium) in main plot and four levels of micronutrients spray (M1: Only water spray, M2: Fe (0.5% solution), M3: Mo (0.05% solution), M4: Fe + Mo (0.5% solution & 0.05% solution), in sub plot were tested with split plot design in three replications. The finding revealed that yield attributes and yields of mung bean was influenced significantly by the different levels of RDF as well as foliar spray of Iron and Molybdenum. Application of 100% RDF + Rhizobium recorded significantly higher yield and yield attributes of mung bean. Foliar spray of Iron @ 0.5% + Molybdenum @ 0.05% at 25 and 45 DAS also recorded the highest value of yield attributes and yields of mung bean, which was significantly higher than control. On an averages 115% increase in grain yield was recorded with 100% RDF + Rhizobium followed by two spray of micronutrients (Fe + Mo @ 0.5% + 0.05%) at 25 and 45 DAS.