SAPNA, KUMARIKUMARI, QUARI2023-10-252023-10-252022M/Agro./136/2020-21https://krishikosh.egranth.ac.in/handle/1/5810199677At the RPCAU Pusa farm, Samastipur (Bihar), an experiment was done in the year 2021-2022, with the goal of evaluating the "Performance evaluation of nano urea based nitrogen management for maximizing wheat productivity under restricted irrigation." The major goal of this work was to create a technology for employing nano urea under these circumstances to increase wheat productivity. The experiment was designed using an RBD with three replications and eleven treatments. The test farm's soil was a sandy loam with 0.47% organic carbon and a pH of 8.28. The soil contains 110 kg ha-l of K2O, 17.18 kg ha-l of P2O5, and 221 kg ha-l of readily available N. The growth and yield traits are significantly impacted by various treatments. Two nano urea sprays at tillering and jointing under RDN+ resulted in increased plant height and more tillers. The results of the study demonstrated that higher dry matter production and crop growth rate were seen under RDN+ with two sprays of nano urea at tillering and jointing. Under the RDN+ two sprays of nano urea at tillering and jointing, plant height, the density of tillers per square metre, and the accumulation of dry matter all increased. Higher numbers of ear head/ m2, length of ear head, test weight and number of grains/ ear head were seen from RDN+one spray of nano urea at tillering. The highest harvest index (HI) was reported from RDN+ two sprays of nano urea at tillering and jointing, but higher grain yield and straw were recorded from RDN+ one spray of nano urea at tillering. Higher gross returns, net returns, and B: C ratios were achieved in RDN+one spray of nano urea during tillering.EnglishThesis