Author(s): LUNGMUANA, M. GHOSH, P. K. PATRA AND S. K. GHOSH

Abstract: A field experiment was conductedin a farmer’s field at Jhargram,rnPaschimMedinipur, West Bengal for consecutive two seasons (rabi and kharif,rn2009) to access the effect of the integrated use of organic amendments viz.,rnrice straw, glyricidialeaves, FYM and vermicompost,intended to supply 1000 kgrncarbon ha^-1,integrated with chemical fertilizers in comparisonrnwith chemical fertilizers alone on growth and yield of rice variety IR-36. Thernamount of N, P, K in the organic amendments were subtracted from the totalrnamount to arrive at a rate of 80 kg N, 40 kg P₂O₅ and 40 kg K₂O ha^-1.Substitutionrnof chemical fertilisers with organic amendments for supplying a part of N, P,rnand K requirement of rice crop resulted in lower values of different plantrnparameters. The tallest plants (73.59 cm), highest numbers of tillers and paniclesrn(536.33 and 513.17 m^-2, respectively),number of grainsrnpanicle^-1 (120.83), test weight (24.9 g), straw yield (5.03 trnha^-1) and grain yield (5.42 t ha^-1)  were recorded in fertilizer treated  plots. The uptake of N, P and K by rice wasrnhighest in the chemical fertilizer treatment (75.39, 15.41 and 106.64 kg ha¹). Thernresults obtained suggested important role of chemical fertilizers in thernexperimental soil. Among the organic amendments, performance of vermicompost was the best.

Download Full Article: Click Here