A field experiments were conducted to evaluate the effects of green synthesis of zinc oxide nanoparticles (ZnO NPs), that prepared in the presence of date palm pits extract (DPPE) through two successive seasons 2018-2019 and 2019-2020 at Agricultural Experimental Research Station of Tag El-Ezz, Agriculture Research Center, Dakahlia Governorate, Egypt, to assay the response of pea plant (Pisum sati...