الفهرس 
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Abstract
The field experiments were conducted out at the experimental farm, Faculty of Agriculture, Saba Basha, Alexandria University, Alexandria Governorate, Egypt, of 2021 season to investigate the impac of irrigation intervals and foliar nutrition of nano- siliver (Ag NPs), silicon (Si) and their interaction on maize (SC.2066) productivity under soil as affected by salts.
The preceding crop was Egyptian clover (Trifoluim alexandrinum L.) in the first and second seasons of this study.
The experiment was designed as a split-plot system. Where, the main plots were irrigation interval (15, 20, and 25 days) located main plots, while the subplots were occupied by spraying treatments (spray water, Si, Ag Nps and Si+Ag Nps). K- silicate as soure of Silicon (Si) and nano siliver (Ag NPs) which applied at the four times at (30, 50, 70 and 90 days afters sowing= DAS).