A field experiment was conducted during kharif, 2019 at Agronomy farm, B. A. College of Agriculture, Anand Agricultural University, Anand, Gujarat to study the effect of row spacing and nutrient management levels on yield and quality parameters of soybean. The soil of the experimental plot was loamy sand in texture locally called “Goradu” soil, low in organic carbon and available nitrogen, medium in available phosphorus and low in available potassium. The experiment was laid out in Split plot design comprising two factors viz., row spacing of 30 and 45 cm and nutrient management with five levels i.e., 1) 100 % RDF [(100% RDF (45:60:00 N-P2O5-K2O kg ha-1)], 2) 100% RDF + Bio NP (Rhizobium + PSB) as seed treatment + Bio NP as soil drenching, 3) 75% RDF + Bio NP (Rhizobium + PSB) as seed treatment, 4) 75% RDF + Bio NP (Rhizobium + PSB) as seed treatment + Bio NP as soil drenching, 5) Bio NP (Rhizobium + PSB) as seed treatment + Bio NP as soil drenching. Total 10 treatment combinations were replicated four times. At 30 cm row spacing, significant increase in plant height, no. of root nodules, seed yield and stover yield were recorded, whereas maximum pods per plant was reported at wider spacing (45 cm). Similarly, tested nutrient management practice viz., 100 % RDF + Bio NP (Rhizobium + PSB) as seed treatment + Bio NP as soil drenching exhibited better performance with respect to growth and yield attributes i.e., plant height, branches plant-1, no. of root nodules plant-1, dry weight of nodules plant-1, no. of pods plant-1 , seed index, seed yield and stover yield, however, found at par with [(100% RDF (45:60:00 N-P2O5-K2O kg ha-1)].
Henceforth, crop sown at 30 cm row spacing and fertilized with 100% recommended dose of fertilizer (45:60:00 N-P2O5-K2O kg ha-1) + Bio NP (Rhizobium + PSB) as seed treatment @ 5 ml kg-1 seed + Bio NP as soil drenching @ 1 litre ha-1 at 25-30 DAS can be acknowledged as a bumper yielding and remunerative operation.