Studies on comparison of nano-urea and prilled urea for enhancing maize (Zea mays) growth and productivity
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Authors
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SATYAM RAWAT
ICAR-Indian Agricultural Research Institute, New Delhi- 110012
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RAJIV KUMAR SINGH
ICAR-Indian Agricultural Research Institute, New Delhi- 110012
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PREETI SINGH
ICAR-Indian Agricultural Research Institute, Jharkhand - 825405
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PK UPADHYAY
ICAR-Indian Agricultural Research Institute, New Delhi- 110012
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KAPILA SHEKHAWAT
ICAR-Indian Agricultural Research Institute, New Delhi- 110012
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SEEMA SANGWAN
ICAR-Indian Agricultural Research Institute, New Delhi- 110012
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SUKANTA DASH
ICAR-Indian Agricultural Statistical Research Institute, New Delhi- 110012
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BIJAN KUMAR MONDAL
ICAR-Indian Agricultural Research Institute, New Delhi- 110012
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RAJAN SHUKLA
Govind Ballabh Pant University of Agriculture & Technology, Pantnagar, Uttarakhand 263145
Keywords:
Maize, Nano-urea, Prilled urea, Partial factor productivityAbstract
An experiment was conducted during the rainy (kharif) season of 2022–23 at the ICAR-Indian Agricultural Research Institute, Hazaribagh, Jharkhand to assess how well nano- urea performs in maize under different field conditions and investigate its compatibility with other N sources. Results showed that root weight (fresh and dry), partial factor productivity (N, P2O5 and K2O), N concentration (grain and stover), grain yield, biological yield and harvest index of maize were all significantly affected by the application of various N rates and nano-fertilizers. The grain yield of maize was comparable to the yield obtained under RDF and 75% of the recommended N + two nano-urea sprays. These findings indicate that the concurrent use of these nano-fertilizers has the potential to reduce N fertilization by as much as 25%. Furthermore, the results highlight the prospect of augmenting biological yield of maize by incorporating 2 nano-urea sprays alongside the prescribed N quantity from prilled urea, as well as full applications of P2O5 and K2O.
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