Author(s):

Shashank Shekher Singh, Anil Kumar Singh and Permendra Singh

Abstract: A field experiment was conducted for two years during kharif season of 2017 and 2018 at Agronomy research Farm, N.D. University of Agriculture and Technology, Kumarganj, Ayodhya (U.P.) on sandy loam soil with a pH of 8.1 to study the Influence of planting geometry and nitrogen levels on rice (Oryza sativa L.)”. The experiment was laid out in split plot design (SPD) with three replications Sixteen treatment combinations; comprised of four planting geometry, viz. (S₁) 15x10 cm, 15x15 (S₂),20x10 (S₃) and 20x15 (S₄) were kept in main plot and four nitrogen level, viz. 0kg/ha (N₀), 60kg/ha (N₁), 120kg/ha (N₂) and 180kg/ha (N₃) were kept in sub plot. Protein content of rice grain was not significantly affected due to planting geometry and N level during both the years of investigation, whereas plant spacing of 20×10cm recorded higher nitrogen uptake in grain which was at par with 15×15cm spacing while significant over rest both of the planting geometry. Cost of cultivation was recorded highest (Rs. 35435/ha) under S_1­­N₃ under planting geometry of 15×10cm spacing applied with 180kg N/ha followed by (Rs.35045/ha), while application of 120kg nitrogen/ha given in 20×10cm spacing recorded highest gross return Rs.102140/ha followed by Rs. 101845/ha in 15×15cm spacing applied with 180kg N/ha due to higher yield.

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