Response of blackgram to different levels of irrigation in summer rice fallows

Abstract

Studies conducted at the Agronomic Research Station, Chalakudy revealed that the grain yield of blackgram grown in rice fallows during summer was significantly influenced by water management practices. Irrigating the crop at an IW/CPE of 0.5 was found to be the best. The ratios of 0.75 and 0.5 and bellshaped irrigation recorded 105, 107 and 109 per cent increase in grain yield over no irrigation control. It was also observed that both the varieties tried viz., T9 and Co 2 were on par in all the three seasons.