Vol. 11, Issue 11 (2022)

A field trial was carried out at AHRS Bavikere research Station, KSN University of Agricultural and Horticultural Sciences, Shivamogga, India, during Kharif 2021, to evaluate the effect of varied levels and methods of molybdenum (Mo) application in soybean. The experiment was laid out in Randomised Block Design with three replication. the trial comprised of various combinations of methods and levels (2, 4 and 6 g of Mo per kg of seed for seed treatment, 500,700,1000 and 1500 g/ha Mo as basal soil application and 0.025, 0.05 & 0.1% foliar Mo applications). The results revealed,significantly higher plant height (58.6 cm) number of branches per plant (7.5) leaf area Index (1.7) and plants dry weight (26.7 g plant^-1) at harvest were recorded in seed treatment with 6 g Mo kg^-1 of seeds (T₃) followed by soil application of 1000 g/ha of Mo (T₈). The yield traits of soybean viz., pods plant^-1 (56.9), No of grains pod^-1 (3.5), Test weight (14.2 g) seed yield per plant (13.6 g) were higher in seed treatment (6 g/ha) and soil application (1000 g/ha). Soybean root nodules observed at 35 and 45 DAS (44.2 and 63.5 per plant) were also significantly higher, in seed treatment with 6 g Mo kg^-1 of seeds (T₃). Significant improvement in seed and haulm yield (1695.02 and 2520.0 kg ha^-1) was recorded, which was 17.3 and 12.7% higher in T₃ over control.