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Dynamics of dry matter and nitrogen distribution in transplanted rice on mollisols
Authors:Ashvin Kumar Meena  Pooran C. Pandey  Gangadhar Nanda
Affiliation:Department of Agronomy, G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, India
Abstract:We studied the dynamics of dry matter (DM) and nitrogen (N) distribution in different plant parts (leaf, stem, and panicle) and grain yield of transplanted rice due to N management practices through neem coated urea (NCU). The results indicated that application of NCU at 125% recommended dose of N (RDN) with 50:25:25 split schedule at basal (B), active tillering (AT), and panicle initiation (PI) stages resulted in higher DM and N distribution to leaf, stem, and panicle at 60 and 90 days after transplanting and harvest than the application of prilled urea at 100% RDN with the same split schedule (existing practice). Further, the increment in grain yield was 10.95% than the existing practice. Hence, we suggest the application of NCU at 125% RDN with 50:25:25 split schedule at B, AT, and PI stages for achieving higher DM and grain yield on Mollisols.
Keywords:dry matter accumulation  neem coated urea  nitrogen accumulation  transplanted rice  yield
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