Introduction
Calcium silicate fertilizer is a relatively essential element for some plants, but it is one of the essential and important elements for rice, which is found in the amount of 10% to 20% in the dry matter of rice stems and leaves. Calcium silicate fertilizer is an excellent source of silicon element. Silica is one of the important elements that make up the structure of clay minerals in most soils and is known as a useful element for plants. In higher plants, this element exerts its greatest effect on mechanical processes and increasing resistance to environmental stresses, and plays a significant role in resisting pests and diseases, as well as increasing crop growth and yield. Silicon is the second most abundant element in the earth’s crust (27.7%) after oxygen (45.5%), but its roles are less known in plant biology, and although silicon is not considered an essential element for higher plants. It is useful for healthy growth and development of plant organs, and silica element is used to prevent the harmful effects of salinity stress, and it has been proven to reduce the damages caused by salinity stress in many crops. Silicic fertilizers such as calcium silicate fertilizer, in addition to increasing the strength of epidermal cells, can also reduce the sensitivity to diseases and pests by stimulating the plant’s defense system. Silicic fertilizers are fertilizers that have a percentage of soluble silicon. They are high. Calcium silicate is one of the siliceous fertilizers. Calcium silicate is the most important source for soil consumption of silicon. Based on the classification of the European Union, silicon compounds are classified as growth stimulants. Therefore, silicon is an important element in plant nutrition and its effect on plant growth and plant protection under stress conditions cannot be ignored. Therefore, it is very important to consider a food plan containing this element and to choose a product that can fulfill all that silicon is capable of in improving the health and safety of the plant.















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