Vol. 12, Issue 11 (2023)

Author(s):
Harivansh Singh, Anil Kumar Singh, Shivam Chaubey and Vivek Kumar Singh

Abstract:
A study was conducted during winter (rabi) season of 2018 - 19 and 2019 - 20 at Pili Kothi research farm of Jaunpur, U.P to evaluate the influence of seed rate and nutrient management on growth and yield of late sown wheat (Triticum aestivum L.). The experiment was conducted in factorial randomized block design comprising combination of three seed rate (S₁-100kg ha-¹, S₂ 120kg ha-¹ and S₃-140kg ha-¹) and nutrient supply system (N₁-100%RDF, N₂-125%RDF, N₃-75%RDF+ 25%N through FYM and N₄-75%RDF+25%N through vermicompst),replicated thrice. The result revealed that LAI, number of spikes per unit area, spike length, number of grain per spike, grain yield, straw yield biological yield and harvest index increased with increasing rate of seed rate but significant differences was observed between 100 and 140 kg seed rate in respect to these parameters. Plant height was a parameter which remains statistical similar at various stage of crop growth under different level of seed rate during both the years. This investigation also observed that application of 125% RDF resulted significantly taller plant and higher LAI as compared to other nutrient supply system at 60 DAS, during both the years. Significantly higher yield attributes viz number of spikes/m², spike length and grains/spike were recorded under 125% RDF treatment which ultimately resulted higher grain yield, straw yield, biological yield and harvest index as compared to 75%RDF along with higher 25% N through FYM or through vermicompst.