Vol. 11, Issue 3 (2022)

Author(s):
Naveen Kumar Maurya, Y.K Singh, U.S Tiwari, Rajiv, Pankaj Kumar, Vipin Patel and Bal Veer Singh

Abstract:
The experiment was conducted at Student Instructional Farm, C. S. Azad University of Agriculture and Technology, Kanpur during kharif and rabi seasons of 2018-19 and 2019-20. There were eight treatments combinations i.e., T₁: LCC 3, T₂: LCC 4, T₃: LCC 5, T₄: CCM 30, T₅: CCM 35, T₆: CCM 40, T₇:100% RDN as 3 splits (2:1:1) at basal, knee height and tasseling stage and T₈: 75% RDN as 3 equal splits at basal, knee height and tasseling stage. The experiment was laid out in RBD with four replication on silt loam soil with low organic carbon (0.43%) available nitrogen (161.43 kg ha^-1) and available phosphorus (14.71 kg ha^-1) while medium in potassium (240.33 kg ha^-1), respectively. The growth characters like plant height (cm), number of functional leaves per plant, crop growth rate (CGR), dry matter production (g), leaf area index, days to 50% silking, days to 50% tasseling were significantly higher with the treatment T₃ (LCC 5, i.e. application of 30 kg N ha^-1 based on LCC critical value 5) and found to be superior over rest of the treatments during the years 2019, 2020 and on pooled basis. The yield components like number of cobs plant^-1, length of cob (cm), number of grains cob^-1, grain weight cob^-1 (g), weight of 1000 grains (g), shelling percent were maximum with the T₃ (LCC 5, i.e. application of 30 kg N ha^-1 based on LCC critical value 5) and found to be greater over rest of the treatments during the years 2019, 2020 and on pooled basis. Thus, it may be concluded T₃ (LCC 5, i.e. application of 30 kg N ha^-1 based on LCC critical value 5) found to be most suitable practice to get more growth and yield attributes.