Direct and residual effect of fertilizers on yield and nutrient uptake of jute and their residual benefits to rice grown in rainfed lowlands
1998
Singh, S.K. | Chosh, B.C. (Central Rainfed Lowland Rice Research Station West Bengal (India))
Field experiments were conducted under rainfed lowland conditions in farmers' field near Indian Institute of Technology Kharagpur, during 1991 and 1992 with varying levels of N and P fertilizers applied to capsularis jute and the residual benefits in the form of root stubbles and leaf of jute biomass to the succeeding rice crop was studied. Jute crop showed the response of fertilizer application up to N40P20 level. Sizeable amount of biomass was recycled in the soil through root stubbles (1605 kg/ha and leaf fall (378 kg ha supplying 23 kg N/ha and 10 kg P2O5/ha. Advantage of residual fertility to rice improved the grain yield significantly by direct application of chemical fertilizer at sub-optimal dose i.e. N40P20. Thus, a saving of 20 kg/N ha and 10 kg P2O5/ha could be achieved due to residual fertility derived from jute biomass in jute-rice cropping sequence.
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