Effect of NPK, NPK Organic Fertilizers and Spraying Nano-Vanadium and Nano-Selenium on the Growth and Yield of Rice

Abstract The research aims to evaluate the response of rice plant fertilization with NPK, NPK Organic fertilizers and spraying nano-vanadium nano-selenium in some growth yield indicators (Anber 33 cultivar).A field study was conducted Al-Tali’a district (41 - Al-Hussainiya, south Hilla city) Babylon province Iraq, for period from 15/6/2021 26/11/2021.The experiment according a randomized complete block design (RCBD).The treatments were randomly distributed simple one-way experiment. applied by adding fertilizer at two levels (0 300 kg ha -1 ) Amino Humic Compound 1000 ).While nanomaterials represented concentration (100 mg L sprays, bringing number experimental units 16 treatments. results statistical analysis Duncan’s test showed that fertilizing organic acids gave highest height, reaching (120 cm). While combination (NPK+NPKOrganic+nano-vanadium) chlorophyll index, which amounted (40.80) SPAD. quadruple treatment (NPK+NPKOrganic +nano-vanadium+nano-selenium) achieved values biological (15.93 Mg.ha grain (4.30 harvest index (27.0%) Also, single (NPK) weight grains, weighed (21.37 g).The vanadium recorded agronomic efficiency, (1676.7 1468.7 spray nano-Va nano-Se respectively, followed dual- nano-materials, (1202.7) .