Comparative evaluation of nano and neem coated urea on growth, phenology and yield of maize (Zea mays) in tarai region of Uttarakhand
DOI:
https://doi.org/10.59797/ija.v70.i2.5609Keywords:
Crop phenology, Monetary efficiency, Nano urea, Production efficiency, YieldAbstract
A field experiment was carried out during the kharif season of 2022 at NEBCRC, Govind Ballabh Pant University of Agriculture and Technology, 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 randomized block design with 3 replications and comprised of 12 treatments. The results revealed that improved growth parameters viz., plant height (198.6 cm), leaf area index (2.7) and dry matter accumulation (172.1 g/plant) and lesser number of days required to 50% tasseling, 50% silking and maturity were recorded with application of 100% recommended dose of nitrogen (RDN) (120 kg N/ha) along with 2 foliar sprays of nano urea or 2% urea at knee high (KH) and pre-tasseling (PT) stages. Maximum grain yield (7.28 t/ha), shelling (77.7%) and harvest index (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. It was 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 knee high and pre-tassseling stage without reduction in productivity or profitability compared to 100%
References
Biswas, R., Tanmayi, C.S.N., Bindu, V.K., Reddy, M.S.L. and Mitra, B. 2024. Yields, nutrient-use efficiencies and production economics of wheat (Triticum aestivum) as influenced by foliar nano urea. Indian Journal of Agronomy 69(3): 269–276. DOI: 10.59797/ija.v69i3.5521.
Chaudhary, B., Singh, R.P. and Singh, A.K. 2017. Role of fertilizers in crop productivity and environmental sustainability. Journal of Environmental Science and Technology 50(1): 1–11.
Dass, A., Rajanna, G.A., Babu, S., Lal, S.K., Choudhary, A.K., Singh, R., Rathore, S.S., Kaur, R., Dhar, S and Singh, T. 2022. Foliar application of macro- and micronutrients improves the productivity, economic returns, and resource-use efficiency of soybean in a semiarid climate. Sustainability 14,5825. https://doi.org/10.3390/su14105825.
Rathnayaka, R.M.N.N., Mahendran, S., Iqbal, Y.B. and Rifnas, L.M. 2018. Influence of urea and nano-nitrogen fertilizers on the growth and yield of rice cultivar ‘Bg 250’. International Journal of Research Publications 5(2): 1–7.
Rawat, S., Singh, R.K., Singh, P., Upadhyay, P.K., Shekhawat, K., Sangwan, S., Dash, S., Mondal, B.K. and Shukla, R. 2024. Different nitrogen levels with nano and prilled urea spray on productivity and profitability of maize (Zea mays) in alfisols of Jharkhand. Indian Journal of Agronomy 69(3): 326–329. DOI: 10.59797/ija.v69i3.5529.
Sarkar, A., Singh, T., Mondal, A., Kumar, S., Das, T.K., Kaur, R., Raj, R., Upadhyay, P.K., and Susheel Sarkar, S. 2024. Effect of nano-urea and herbicides on yield and yield attributes of wheat (Triticum aestivum). Indian Journal of Agronomy 68(1): 97–100.
Subramani, T., Velmurugan, A., Bommayasamy, N., Swarnam, T.P., Ramakrishna, Y., Jaisankar, I and Singh, L. 2023. Effect of nano urea on growth, yield and nutrient use efficiency of okra under tropical island ecosystem. International Journal of Agricultural Science 19: 134–139.
Upadhyay, P.K., Dey, A., Singh, V.K., Dwivedi, B.S, Singh, T., Rajanna, G.A., Babu, S., Rathore, S.S., Singh, R.K., Shekhawat, K., Rangot, M., Kumar, P., Yadav, D., Singh, D.P., Dasgupta, D. and Shukla, G. 2023. Conjoint application of nano-urea with conventional fertilizers: An energy efficient and environmentally robust approach for sustainable crop production. PLoS ONE 18(7): e0284009. https://doi.org/10.1371/journal.pone.0284009.
