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.
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