Effect of different levels of irrigation and nutrient on growth and yield of Summer Green gram cv. Bireswar in New Alluvial Zone of West Bengal

Abstract

A field experiment was conducted to investigate the effect of irrigation and nutrient sources on growth and yield of green gram in split-plot design with three replications at Bidhan Chandra Krishi Viswavidyalaya on the Gangetic alluvial soil of West Bengal during 2015 and 2016. The treatments comprised of two factors i.e. irrigation (I1 = IW/CPE ratio of 0.4), (I2 = IW/CPE ratio of 0.6), (I3 = critical growth stages (Branching, Flowering, Pod development) and nutrient levels (N1 = 100% Recommended dose of fertilizer, N2 = 100% Recommended dose of fertilizer + Rhizobium, N3 = 75% Recommended dose of fertilizer + 1 t/ha Vermicompost + Rhizobium) and N4 = 50% Recommended dose of fertilizer + 2 t/ha Vermicompost + Rhizobium). The result indicated that plots treated with combination of I3N3 was positively and significantly influenced the growth parameters and seed yield of green gram and performed better than all other treatments.