Vol. 11, Issue 4 (2022)

Author(s):
Avinash Patel, SK Prasad, RK Singh, Kartikeya Choudhary and Prateek Kumar

Abstract:
A field experiment was conducted to study the effect of irrigation and nitrogen management on growth of wheat during two consecutive rabi seasons of years 2017-18 and 2018-19, respectively. The experiment was laid out in split plot design with four water management practices in main plot viz. Without irrigation (control), Irrigation at main shoot and 1 tillers (Z₂₁) + Flag leaf sheath extending (Z₄₁) + Early milk (Z₇₃), Irrigation at 4^th leaf unfolded (Z₁₄) + 1^st node detectable (Z₃₁) + Anthesis 50% (Z₆₅) and Irrigation at 1^st node detectable (Z₃₁) + First spikelet of inflorescence just visible (Z₅₀) + Late milk (Z₇₇) and four nitrogen levels viz. Control, 60 kg N ha^-1,120 kg N ha^-1 and 180 kg N ha^-1. The results reported that the higher growth parameters viz. plant height, number of tillers, shoot dry matter accumulation, crop growth rate, relative growth rate and chlorophyll content were recorded under irrigation application of Z₁₄, Z₃₁ & Z₆₅. However irrigation application of Z₁₄, Z₃₁ & Z₆₅ was statistically at par with Z₂₁, Z₄₁ & Z₇₃ during both the experimental years. Among the nitrogen levels, 180 kg N ha^-1 recorded higher growth parameters which were at par with 120 kg N ha^-1.