Abstract

Rice is the most important agricultural product in the country's economy. Nitrogen fertilization is a fundamental agronomic technique influencing rice crop yield and quality. Under the R-W system, crop yield declines and soil fertility gradually decreases when artificial N fertilizers are used without organic sources. Not only is the right fertilizer dosage critical for achieving the best results, but the timely application of nitrogen is also essential. Inorganic Nitrogen sources (NCU, PU, BU, Nano Urea) known to show quick results and organic Nitrogen sources (FYM, Poultry manure, Vermicompost, Green manure, Jeevamrutha, Biofertilizers) being slow-releasing and eco-friendly combined use of these sources has shown good results. Nitrogen must be applied as much as possible during the early and mid-tillering stages to maximize the number of panicles and during the reproductive stage to produce the ideal number of spikelets per panicle and % of filled spikelets.

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