Integrated organic, chemical and nano-fertilization improves growth, nutrient status and productivity of Thompson Seedless grapevine
1Department of Agricultural Botany, Plant physiology Division, Faculty of Agriculture, Cairo University, Giza 12613, Egypt. 2Desert Environment Institute, Sadat City, Sadat University. 3Natural Resources Department, Faculty of African Postgraduate Studies, Cairo University, 12613, Egypt. 4Natural Resources Department, Faculty of African Postgraduate Studies, Cairo University, Egypt. Corresponding e-mail: abdelhamed.abdoo47@gmail.com
DOI: https://doi.org/10.37855/jah.2026.v28i01.33
Viticulture is an important source of national income in exporting countries. Organic fertilizer (OF), chemical fertilizer (CF), and foliar nano-fertilizer (FNPs) play important roles in improving plant nutrition, growth, and yield. This study evaluated the combined soil application of chemical fertilizer (CF) and organic fertilizer (OF) at five ratios (100:0, 75:25, 50:50, 25:75 and 0:100) with foliar nano-fertilizer sprays containing Zn, Cu and Fe at four levels (100, 75, 50 and 25%). on growth, nutritional status, and productivity of Thompson Seedless grapevines over two seasons. The treatment 75% CF + 25% OF combined with 75% FNPs produced the highest yield and was statistically comparable to 100% FNPs for several growth and nutritional traits. This treatment also increased cluster weight and length. Furthermore, it achieved the highest fruit yield (42.2 and 43.6 kg per vine), compared to 50% CF + 50% OF with 75% FNPs (33.45 and 34.5 kg) and 100% CF + 0% OF with 25% FNPs (lowest at 15.85 and 15.82 kg) in the first and second seasons, respectively. This study highlights integrated strategies combining OF and FNPs as partial alternatives to CF for sustainable agriculture and reduced CF use.
