Comparative evaluation of nano and commercial urea on growth, phenology and yield of maize (Zea mays L.) in tarai region of Uttarakhand
DOI:
https://doi.org/10.59797/ija.v69i2.5443Keywords:
Crop phenology, Monetary efficiency, Nano urea, Production efficiency and YieldAbstract
A field experiment was carried out during the Kharif season of 2022 at NEBCRC, GBPUA&T, Pantnagar, Uttarakhand to evaluate the comparative evaluation of nano and commercial urea on growth, phenology and yield of maize (Zea mays L.). The experiment was laid out in a factorial randomized block design with 3 replications. The treatments comprised of 12 treatments The results revealed that growth parameters, crop phenology, yield production efficiency and monetary efficiency were increased by the application of 100 % RDN (120 kg N/ha) along with 2 foliar sprays of nano urea or 2 % urea at KH and PT stages but it remained at par with 5/6th RDN + 2 foliar sprays of nano urea at KH and PT stage and 100 % RDN applied through commercial urea. Maximum grain yield (7,288 kg/ha), shelling (77.7 %) and HI (34.6 %) were obtained in 100 % RDN + 2 foliar sprays of nano urea. However, production and monetary efficiency did not vary significantly among 100 % RDN, 100 % RDN + foliar spray of nano urea, 100 % RDN + foliar spray of 2 % urea and 5/6th RDN + nano urea. Overall, concluded that maize can be fertilized with 5/6th RDN (100 kg N/ha) + 2 foliar sprays of nano urea or 2 % urea at the KH and PT stage without a reduction in productivity or profitability compared to 100 % RDN.
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