Effect of Phosphorus, Vermicompost and PSB on Seed Yield, Yield Attributes and Economics of Blackgram (Vigna Mungo L.)

A field experiment was conducted to study the effect of phosphorus, vermicompost and PSB inoculation on growth, yield and quality of black gram during Kharif 2011 on the farm of Agronomy department, at college of Agriculture, Latur. The research showed that the application of 75 kg P2O5ha-1 recorded highest seed yield (1194 kg ha-1) and yield attributes as well as high economic returns but it was found at par with 50 kg P2O5ha-1. The higher B: C ratio (1.58) was recorded at 50 kg P2O5ha-1. Therefore, it is recommended to apply 50 kg phosphorus ha-1 to black gram crop. The superior development and yield parameters were recorded by the combine application of vermicompost and PSB inoculation. It was also found superior in respect of gross monetary return but higher net monetary return (18377 kg ha-1) and B: C ratio (1.74) was obtained by the application of PSB inoculation. Hence it is recommended to apply PSB inoculation to black gram.