Crop canopy and yield of grain legumes in relation to splash erosion in southeastern Rajasthan

A field experiment was conducted at Kota, Rajasthan during rainy season (Ju ly-October) of 1993-96 to evaluate the performance of short duration and qu ick growing promising 10 varieties of 3 grain legumes; cowpea (Vigna unguic ulata (L.) Walp.) 'C 152', 'RC 19', 'RC 48' and 'RC 80'; greengram (Phaseol us radiatus L.) 'K 851' 'Pusa 105' and 'ML 131'; blackgram (Phaseolus mungo L.) 'Type 9', 'Pant U 19' and 'Pant U 30' in relation to canopy cover, lea f area, splash-erosion, yield and economics. 'C 152' cowpea attained the ma ximum crop canopy (62.6%), leaf area (947 cm(2)), grain yield (757 kg/ha), net return (Rs 5 894/ha) and benefit : cost ratio (Rs 3.02). The minimum sp lash erosion was observed for 'C 152' cowpea than that in other varieties o f crops, viz cowpea, greengram and blackgram.