RECENT FERTILIZATION TECHNIQUE FOR SOYBEAN PLANTS UNDER DROUGHT CONDITIONS

Abstract

During summer seasons of 2015, 2016 and 2017, a field experiment was conducted at the Research and Experimental Station (30°19′ N, 31°16′ E), Faculty of Agriculture, Ain Shams University at Shalakan, Kalubia Governorate, Egypt, to study the effects of combinations between hydroxyl apatite nanoparticles and calcium carbonate nanoparticles as nano-fertilizers under two irrigation intervals, on growth of soybean plants (Glycine max, Merrill c.v. Giza 111). In 2016 season, experiment was canceled owing to weed competition. The soil was clay loam and its properties are shown in Table 1. The preceding crop was wheat in both seasons