Ratnesh Kumar Ahire*1 and Panch Ram Mirjha2
1,2Section of Agronomy, Dau Kalyan Singh College of Agriculture & Research Station, Bhatapara, Indira Gandhi Krishi Vishwavidyalaya, Raipur
Email: ratneshkumarahire@gmail.com
Received-05.02.2024, Revised-11.03.2024, Accepted-28.03.2024
Abstract: A field experiment was carried out in split-plot design during Kharif season of 2022 at Instructional Farm of Dau Kalyan Singh College of Agriculture & Research Station, Bhatapara, IGKV, Raipur to evaluate the “Effect of different levels of nano urea and nitrogen on yield and economics of rice (Oryza sativa L.) in Vertisols of Chhattisgarh Plains”.Three levels of nano urea and five levels of nitrogen were allocated in main plot and sub plot respectively. Among levels of nano urea, application of 12 ml nano urea litre-1 of water at 25-30 DAT were recorded significantly higher grain yield, straw yield and biological yield and also fetched maximum gross returns, net returns and benefit cost ratio followed by application of 8 ml nano urea litre-1 of water at 25-30 DAT. Among levels of nitrogen application of 75 per cent RDN in three split doses (25% basal + 25% at tillering stage + 25% at booting stage) registered significantly higher grain yield, straw yield and biological field and also ascribed maximum gross returns, net returns and benefit cost ratio followed by application of 100 per cent RDN in three split doses (50% basal + 25% at tillering stage + 25% at booting stage) which was significantly at par.
Keywords: Kharif , Nano urea, Nitrogen, Rice, Yield
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