Vol. 11, Issue 5 (2022)

Author(s):
KM Shivani Tiwari, Biswaroop Mehera and Neeraj Kumar

Abstract:
A field experiment was carried out during Kharif, 2021 at Crop Research Farm, Department of Agronomy, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj (U.P) on sandy loam soil to assess the effect of phosphorus levels (30, 40 and 50kg/ha) and biofertilizers (VAM, PSB and VAM + PSB) on growth parameters and yield of Blackgram (Vigna mungo L.). The design of field experiment was Randomized block design consisting of nine treatments each replicated thrice. Experimental results showed significant increase in growth parameter and yield. Application of VAM + PSB+50 kg P /ha (Treatment 9) recorded maximum plant height (37.46cm), number of nodules (12.38 per plant), dry weight (10.82 g per plant),Crop growth rate (g/m²/day)(13.02 g/m^2/day), Relative growth rate (mg/g/day)(0.1067 mg /g/day) and number of pods (25.46/plant), number of grains (6.92 per pod), test weight (45.23g), grain yield (2.41 t/ ha), stover yield (6.47 t /ha) and harvest index (33.52 t/ha). Maximum gross return (INR 1,44,600/ha), net return (98,986.68 INR /ha) and B:C ratio (2.17) were also recorded with application VAM + PSB + 50 kg P /ha (Treatment 9).