Vol. 12, Issue 10 (2023)

Author(s):
Shreya Kumbhaj, JR Patel, HP Agrawal, PK Keshary, Dinesh Pandey, NK Chaure, Chanchala Rani Patel, Mahendra Kumar Patel, Mukesh, Digambar Sakre and Shakuntala Kaiwart

Abstract:
A field experiment to investigate theeffect of row spacing and nitrogen levels on growth and yield of wheat (Triticum aestivum L.) was conducted on sandy clay loam soil at Instructional Farm, Barrister Thakur Chhedilal College of Agriculture and Research Station, Bilaspur (Chhattisgarh) during the rabi season of 2022-23.The investigation was carried out in a split-plot design with 12 treatment combinations comprising of three row spacings (15, 20 and 25 cm) in the main plot and four nitrogen levels (100, 120, 140 and 160 kg ha^-1) in the sub-plot, which were replicated three times.The wheat variety CG 1023 (Chhattisgarh Hansa Wheat) was used for the research. Results of field experiment revealed that growing of wheat at 15 cm row spacing recorded significantly higher growth attributes, which was statistically at par with 20 cm row spacing but significantly better than 25 cm row spacing at all growth stages under study. Row spacing 15 cm recorded significantly higher yield attributes and grain yield (45.54 q ha^-1) of wheat which was at par with 20 cm row spacing but significantly better than 25 cm row spacing. Among nitrogen levels, 160 kg N ha^-1 recorded the highest values of growth attributes, which was statistically at par with 140 kg ha^-1 but significantly better than its lower levels. Application of 160 kg N ha^-1 recorded significantly higher yield attributes and grain yield (45.54 q ha^-1) but at par with 140 kg N ha^-1. The Harvest index was not significantly affected by row spacing and nitrogen levels. The highest benefit: cost ratio (1.53) was recorded in row spacing 15 cm which was followed by 20 cm row spacing (1.50). Among nitrogen levels the highest benefit: cost ratio (1.82) was recorded in 160 kg N ha^-1 which was followed by 140 kg N ha^-1 (1.80). The interaction effect of row spacing and nitrogen levels did not reach a level of significance.