Effect of Micronutrients Application on Moong Bean (Vigna Radiata L.) in Western U.p

Abstract

A field experiment was conducted to assess effect of micronutrients treatments on nutrient uptake and productivity at Crop Research Centre of Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut (U.P.), during kharif season of 2020. In the nine treatments consistent application of Rhizobium inoculation viz., Control, RDF (20:40:20) kg ha-1, RDF + Zn @ 5 kg ha-1, RDF + B @ 2.5 kg ha-1, RDF + Mo @ 1 kg ha-1, RDF + Zn @ 5 kg ha-1 + B @ 2.5 kg ha-1, RDF + Zn @ 5 kg ha-1 + Mo @ 1 kg ha-1, RDF + B @ 2.5 kg ha-1 + Mo @ 1 kg ha-1 and RDF + Zn @ 5 kg ha-1 + B @ 2.5 kg ha-1 + Mo @ 1 kg ha-1 were tested in RBD with three replications. SML-1827 was grown as a test variety. The results revealed that the combined application of micronutrients along with RDF exhibited significant influence on the growth, yield attributes and yields of moong bean as compared to control during year of experimentation. Significant improvement in growth parameters viz. plant height, number of branches plant-1, number of trifoliate leaf plant-1, dry matter accumulation (g plant-1), number of root nodules plant-1, dry weight of nodules (mg plant-1), protein content, 1000-grain weight, nutrient content and grain yield was recorded with the application of RDF + Zn @ 5 kg ha-1 + B @ 2.5 kg ha-1 + Mo @ 1 kg ha-1, which established its superiority over rest of the micronutrients treatments. The total nitrogen, phosphorus, potassium, zinc, boron and molybdenum uptake (96.62, 6.727, 47.217 kg ha-1, 4784.40, 1071.94 and 14.23 g ha-1 respectively) by moong bean crop was also highest with the application of RDF + Zn @ 5 kg ha-1 + B @ 2.5 kg ha-1 + Mo @ 1 kg ha-1 and 138.59 and 117.55% increase in grains and straw yield of moong bean was recorded in the same treatment. The application of RDF + Zn @ 5 kg ha-1 + B @ 2.5 kg ha-1 + Mo @ 1 kg ha-1 resulted in higher protein yield (325.0 kg ha-1). Thus the application of RDF + Zn @ 5 kg ha-1 + B @ 2.5 kg ha-1 + Mo @ 1 kg ha-1 was found better for sustainability of moong bean.