Vol. 15 No. 3
Enhancement in rice production as influenced by cropping systems and integrated nutrient management in New Alluvial Zone of West Bengal
Author(s): A. BEGAM, P. HALDAR, M. RAY, R. DEBSHARMA AND D.C. ROY
An experiment was conducted at Central Research Farm, BCKV, Nadia during 2017 and 2018 with three cropping systems- i) Rice -Rapeseed - Fodder cowpea (C1), ii) Rice - Field pea - Fodder cowpea (C2); iii) Rice - Wheat - Fodder cowpea (C3) and five integrated nutrient managements i) 100% Recommended dose of Fertilizers (RDF) through chemical fertilizer (CF) (N1), ii) 75% RDN through CF +25% N through FYM+ 100% RD of PK through CF (N2), iii) 75% RDN through CF +25% N through Biogas Slurry + 100% RD of PK through CF (N3), iv) 75% RDN through CF +25% N through Vermicompost + 100% RD of PK through CF (N4) and v) 75% RDN through CF +25% N through Azolla+ 100% RD of PK through CF (N5).The experiment was designed in strip plot design with three replications and nutrition wasgiven to rice, rapeseed, field pea and wheat, whereas fodder cowpea was grown in the residual fertility. Nutrients uptake and yield was highest when leguminous crop field pea was incorporated in the cropping system (C2) and use of FYM (N2) alongside chemical fertilizer gave higher number of panicles, grains panicle-1 and grain yield (5.08 t ha-1).Influence of chemical fertilizer alone or with biogas slurry were statistically at par with N2 whereas least performance was recorded in vermicompost and azolla.Regarding the interaction effect, better performance was obtained in treatment combination C2N2in respect of nutrient uptake and yield.
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