Effect of nutrient management practices and cropping system on concentration and uptake of nutrients in soybean (Glycine max L. Merril)

A field experiment was conducted at Research cum instructional Farm, IGKV, Raipur during Kharif 2018 and 2019, to study the effect of nutrient management practices and cropping system on concentration and uptake of nutrients in soybean. The six (6) treatments of nutrient management and four cropping system (CS)viz. (NM1) 100% RDN through organic sources, (NM2) 75% RDN through organic sources + foliar spray of VW (10%) fb CU (10%) at 30 and 50 DAS/DAT, (NM3) 50% RDN through organic + 50% RDN through inorganic sources, (NM4) 75% RDN through organic+ 25% RDN through inorganic sources, (NM5)100% RDN through inorganic sources, (NM6)100% RDN through inorganic sources + FYM @ 5t ha-1, and (CS1) soybean -sweet corn, (CS2) soybean -garden pea, (CS3) soybean-chilli and (CS4) soybean-onion were tested in strip plot design with three replications. The significantly highest nitrogen, phosphorus and potassium uptake by grain in NM2, while the highest uptake by stover in NM1 and total uptake was observed in NM2 except potassium. Whereas the effect of cropping system was non significant during the investigation.