Effect of integrated nutrient management on growth, yield and economics of summer mungbean (Vigna radiata)

A study was conducted in mungbean to investigate the effect of integrated nutrient management on growth, yield and economics of summer mungbean (Vigna radiata) at Research farm of Tirhut College of Agriculture, Dholi, Dr. Rajendra Prasad Central Agricultural University, Pusa, Samastipur, Bihar, India during summer, 2020. The experiment was carried out in randomized bock design with three replications in various permissible combinations with inorganic fertilizers, rhizobium and PSB along with FYM on mungbean (Vigna radiata). This study revealed that 100% RDF + 5 tonnes FYM/ha + Rhizobium and PSB seed inoculation significantly increased plant height, dry weight/plant, number and dry weight of root nodules. The same treatment combination also proved most effective in improving the yield and yield attributing parameters viz., number of pods/plant, number of grains/pod, pod length, test weight and harvest index. Thus, application of farm yard manure @ 5 tonnes/ha along with Rhizobium and PSB helped in increase in yield over control. However, application of 80% RDF along with bio-fertilizer and FYM @ 2.5 tonnes/ha significantly increase net returns and benefit: cost ratio. These results indicate that inorganic fertilizers along with bio-fertilizers and addition of organic matter proved to be useful in achieving the yields with integrated use of different sources of nutrients.