Foliar Application of Seaweed Extract, Zinc, and Iron Nanoparticles on Ziziphus Mauritiana Seedling Growth

Abstract

Abstract This study examined the effects of foliar spraying with seaweed extract at three levels (0,1,2 ml L-1) sequentially, zinc nanoparticles at three levels (0, 10, 20 mg L-1), and nano-iron at three levels (0,20,40 mg L-1). The randomised complete block design (RCBD) factorial experiment included three levels of seaweed extract, three levels of nano-zinc, three levels of nano-iron, and three repetitions of four seedlings per experimental unit, resulting in 180 observations and 60 treatments per sector. 180 seedlings were randomly assigned treatments. Spraying marine extract at 2 ml L-1 significantly improved seedling height, stem diameter, dry weight, chlorophyll, and leaf area. It outperformed the control in seedling height, stem diameter, dry weight, chlorophyll, and leaf area. The combination of 40 mg L-1 zing and iron nanoparticles improved seedling height, stem diameter, dry weight, chlorophyll, and leaf area compared to the comparator treatment.