At Experimental Station Farm, Faculty of Agriculture, Mansoura University, Egypt, throughout 2019 and 2020 years, 2 field experiments were done to study the effect of sprinkle treatments (without, sprinkle with NPK, Zn + Mn + Fe, seaweed extract and combination of NPK + “Zn + Mn + Fe" and seaweed extract) on development, yield and its ingredient and chemical constituents of three maize hybrids (TWC 368, SC 162 and SC168). Every trial was brought in a strip-plot design with 4 duplications. The results appeared that SC 168 hybrid exceeded other researched hybrids (TWC 368 and SC 162) in all studied characters, except plant height and stover yield fed^-1 in jointly seasons. Foliar sprinkle maize plants 3 periods with combination of Fert-plus powder at 4 g liter^-1 + Zn, Mn and Fe at 3.0 g of each liter^-1 + seaweed extract (SWE) at 1.0 g liter^-1 water, which topped further foliar sprinkle treatments and formed the highest growth characteristics, yields and its attributes, chemical constituents and uptakes in jointly seasons. It could be decided that sprayed maize SC 168 or SC 162 hybrids with combination of Fert-plus fertilizer at 4 g + micro-elements (Zn, Mn and Fe) at 3.0 g + seaweed extract at 1.0 g liter^-1 water in each sprinkle in order to maximize productivity, NPK contents and uptakes underneath the ecological situations of Dakahlia Governorate, Egypt.