الفهرس 
Title : Effect of Nano-Microelements and Nitrogen Foliar Applications on Sugar Beet (Beta vulgaris L) Quantity and Quality Traits in Marginal Soils in Egypt and Morocco
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Abstract
Background and Objective: Nanotechnology is one of the new technologies that entered almost all sides of our lives and were used in agricultural production. Nowadays, nanotechnology has expanded horizons in all fields of science.The aim of this study to investigate the response of yield and quality of sugar beet cv. Farida to foliar application of nano- microelements mixtures (Fe, Mn, Zn and B) with/without urea..Materials and Methodos: two field experiments were carried out in the experimental farm of Etsa region in Fayoum Governorate, Egypt, during the two successive seasons (2015/16 and 2016/17). Fourteen treatments of four micro elements as nano form sole and in combination with urea were applied and twelve traits were studied, growth traits, Juice quality traits and yield. Results: showed that the the best results were found when sugar beet plants were treated with nanomicroelements 200 mg / L + urea 1% and was ranked as the first favorable treatments for root length and diameter, dry matter per plant as root, top and sugar yields in both seasons, followed by the treatment of Nano-microelements 160 mg / L + urea 1% for most of the traits studied. from the obtained results, Conclusion: it could be concluded that the application of nano-microelements 200 mg/L+urea 1% treatment significantly produced higher yields associated with improving the quality traits of sugar beet and saving the plants{u2019} needs from micronutrient and nitrogen fertilizers, if this fertilizer rate has been added in the form of nanoparticles