Effect of Plant Density, Sowing Technique and Toping on Yield and Yield Components of Field Beans

Effects of drilling, spaced seeding, plant density, row to row distance and toping on yield and yield components of field beans were studied at two sites for two years. Grain yield ranged from 29 to 54 dt/ha. Toping reduced the yield in all treatments. The reduction ranged from 1.6 to 19.2 dt/ha. Toping gave an interaction with site and year. It induced uniform early maturing and no lodging. Plant density and row to row distance affected the yield differently at different sites. Drilling and spaced seeding showed no divergence. Differences in yield were caused by differences in pods/plant, grains/pod and thousand seed weight.