Effect of Spraying with Nano-Zinc and Mineral Npk Levels on Productivity and Grains Quality of Maize

Dual field trials were passed at Investigational Station Farm, Faculty of Agriculture, Mansoura University, Dakahlia Governorate, Egypt, throughout 2019 and 2020 time of year to study the outcome of spraying through nano-zinc levels (without, spraying with nano zinc at 200, 400 and 600 mg/L) and mineral NPK levels i.e. 100, 80, 60 and 40 % of proposed dosages on development, income and its features and characteristic of maize grains. Spraying maize thru Zn in nano from at 600 mg/L produced high ranking standards growing characters, income and its properties and quality characteristics of maize grains. Mineral fertilizing along with 120.0 kg N plus 45.0 kg P2O5 plus 24.0 kg K2O/fed produced high-ranking standards of growing qualities, income and its properties and characteristic of maize grains. It could be concluded that spraying with nano zinc at 600 mg/L besides fertilizing with 120.0 kg N plus 45.0 kg P2O5 plus 24.0 kg K2O/fed to produce utmost productivity and grains quality. While, to preserve high productivity and grains quality simultaneously lessen production charges and ecofriendly pollution, it could be proposed spraying with nano zinc at 600 mg/L as well as fertilizing with 96.0 kg N plus 36.0 kg P2O5 plus 19.2 kg K2O/fed under ecological environments of Mansoura district, Dakahlia Governorate, Egypt.