Effect of Phosphorus and Vermicompost on Growth and Productivity of Black Gram (Vigna mungo L.)

A field experiment was conducted during the Rabi season of 2023–24 at the Experimental Farm, Department of Agronomy, Faculty of Agriculture and Veterinary Sciences, Mewar University, Gangrar, Chittorgarh, Rajasthan. The study evaluated the effect of phosphorus and vermicompost on the growth and productivity of black gram (variety Pratap Urd-1). The result revealed that the maximum plant height (50.25 cm), dry matter accumulation (13.25/plant), number of nodules per plant (40.15), fresh weight of nodules per plant (71.02 mg/plant), dry weight of nodules per plant (51.02 mg/plant), leaf area index (3.52) and yield parameter such as number of pods per plant (35.15), number of seed per pod (7.15), grain yield (11.85 q/ha), straw yield (22.45 q/ha) and biological yield (34.30 q/ha) with application of T9-40 kg P2O5 ha-1 + 2.5 t vermicompost ha-1. Also, maximum net return (59501/ha) and B:C ratio (1.89) were recorded with T9-40 kg P2O5 ha-1 + 2.5 t vermicompost ha-1.