Effect of different methods of micronutrients mixture application on growth and yield of mungbean in Cauvery command area

Abstract

The aim of the experiment was to study the effect of different methods of micronutrients application on growth and yield of mungbean in red soil. A field experiment was conducted during early Kharif 2015 on sandy loam soil at University of agricultural Sciences, Bengaluru. The experiment was laid out in Completely Randomized Block Design with Twelve treatments including control, RDF alone, RDF+ water spray and soil, foliar and seed treatment with micronutrients (Fe, Mn, Zn, Cu, B and Mo and deficient micronutrients). The treatment receiving RDF +foliar application of MM at 30 and 45 DAS recorded significantly superior yield of 1140.84 kg ha-1 which increased about 7.16, 38.39 and 56.13 per cent over soil application of MM (Fe+Mn+Zn+Cu+B) along with RDF, RDF alone and control respectively. However, grain yield with RDF +foliar application of MM at 30 and 45 DAS and RDF +Soil application of MM treatments were statistically non-significant. Suggesting that supplementation of MM as basal enhances the early vigour thus helps in better yield. Similarly foliar application at later stages is responsible for translocation of assimilates to sink thus resulting in higher yield. Significantly higher stover yield of 2483.86 kg ha-1 was recorded due to soil application of RDF +micronutrients mixture followed by 2386.63 kg ha-1 due to RDF + soil application of deficient micronutrients (only Zn and Boron).The grain yield obtained with seed treatment or with application of only deficient micronutrients was lower than that obtained with the soil or foliar application of micronutrients. The higher yield obtained might be attributed to improvement in growth and yield attributing parameters with the foliar or soil application of micronutrients mixture. Thus foliar application of micronutrients mixture at two growth stages or soil application of RDF +MM is beneficial for enhancing higher grain and stover yield.