Effect of Method of Planting, Plant Density and Phosphorus Fertilization on Yield of Blackgram in Irrigated System

Field experiments were conducted to study the effect of method of planting, plant density and phosphorus fertilization on blackgram variety (Co. 2) with a view to increase its yield under irrigated conditions. While methods of planting did not influence the grain yield, higher plant density (5,00,000 plants/ha) gave 22 and 40% more grain yield than lower density in the first and second year respectively. Foliar application of 6.25 and 12.5 kg phosphorus/ha gave about the same yield. It would be inferred that application of 6.25 kg/ha is quite sufficient in a soil of medium phosphorus status to get higher yields in blackgram.