Document from the year 2012 in the subject Forestry / Forestry Economics, University of Alexandria, language: Arabic, abstract: The process of fertilization is of the most important processes in various plant cultivation stages, and which supplies the plant with the necessary nutritional needs for during the growth period. To maximize the benefits of the fertilization addition we must be fully aware of the factors that interfere and affect the soluble fertilizer in the soil and absorption by the plant. There are many factors that affect fertilization process, starting of the solubility rate...