Vol. 12, Issue 7 (2023)

Author(s):
Sanjay Kumar, Rajendra Lakpale, Panch Ram Mirjha, Satish Yadav and Prashant Uraon

Abstract:
The present investigation entitled “Effect of levels and numbers of nano urea application with different fertilizer dose on transplanted rice (Oryza sativa L.) in Vertisols of Chhattisgarh’’ was conducted at Research Cum Instructional Farm, Dau Kalyan Singh College of Agriculture and Research Station, Bhatapara (C.G.) during Kharif season 2022, to find out the effect of levels and numbers of nano urea on growth and yield of rice. The treatment comprised of four nano urea application as main plot viz., N1: 4 ml 20 DAT, N₂: 8 ml 20 DAT, N_3: 4 ml 20 DAT + 4 ml 40 DAT and N_4: 8 ml 20 DAT + 8 ml 40 DAT with three fertilizers application treatment as sub plot viz., F1: Control, F2: 50% RDF and F3: 100% RDF. The experiment was laid out in split plot design with three replications. The yield attributes like number of tillers hill^-1, number of panicle hill^-1, panicle length (cm), number of grain panicle^-1, weight of 1000 grain (g), grain and straw yield (kg ha^-1) of rice were found significantly superior under treatment N₄: 8 ml 20 DAT + 8 ml 40 DAT followed by N_3: 4 ml 20 DAT + 4 ml 40 DAT. Among the fertilizer application, parameters cited above were recorded significantly higher in treatment F₃:100% RDF. N content in grain and straw, protein content, N-uptake and Nitrogen use efficiency were also recorded maximum in above treatments.