A field experiment was conducted in Autumn planting season 2018 at the Fields of In section 158 of the district 41 Husseiniya Province of Babylon, to investigate the influence of foliar application of Nano chelate silicon fertilizes (NSF), Nano chelated potato specific fertilizer (NPS) and Nano chelated complete micro(NCM) on growth and yield of potato variety Riviera. Foliar applied at 50, 100, 150 and 200 g or ml of all nanofertilizer types 100 L−1 water or 2 kg nanofertilizers ha−1 (as recommended) dissolved in 400 liters of water ha−1.The experiment included spray of single (NSF), (NPS), (NCM), di (NS+NPS),(NS+NCM),(NPS+NCM), and tri combinations (NS+NPS+ NCM), in addition to control (only water) using RCBD with 3 replicates. Growth and yield parameters tested were chlorophyll, dry matter, vegetative yield, fresh tubers yield, biological yield, starch, crude protein, ascorbic acid, AE(Agronomic efficiency) and WUE (Water use efficiency). The results showed that tri combination (NS+NPS+NCM) spray treatment was significantly higher followed by the di and single spray combinations. Fresh yield, dry tubers, vegetative yield and biological yield were (42.130, 9.327, 2.901 and 12.228 Mg ha−1) respectively, compared with the control (28.440, 5.453, 2.240, and 7.693 Mg ha−1), respectively. Tri combinations (NS+NPS+ NCM) starch content, crude protein and ascorbic acid concentration (vitamin c) were (17.10 %, 9.08% and 185.33 mg kg−1 f.w.), compared with the control treatment (12.22%, 7.79% and 136.33mg kg−1 f.w.).

Nano fertilizers are essential resources in agriculture in order to increase crop production, quality, productivity, and boost nutrient uptake. Nano-fertilizer is efficient for specific use of nutrients at appropriate time of plant growth and can provide nutrients as a whole with the crop. Growing crops with heavier fertilizer concentrations further increases may be limiting to crop growth due to nutrient toxicity. Nano-fertilizers provide more area for photosynthesis, leading to more sunlight absorption and greater yields of the crop. It will help plants survive challenging environmental factors such as drought. Limitations in agricultural land and water supplies can improve production land and water use productivity through the use of new technologies. Nanotechnology has the potential of transforming both personal use and development. Nanostructured formulations may also be developed in order to deliver active ingredients in response to environmental cues and biological demands more properly. The principle of fertilizer use is known to use less resource and to be free from chemical side effects. Nanotechnology has enormous potential to contribute significantly to sustainable agricultural production, particularly in developing countries.