Silicon is considered by the international soil community as the fourth plant nutrient after nitrogen, phosphorus and potassium. Silicon fertilizer is a kind of soluble mineral fertilizer mainly composed of calcium, which is non-toxic, odorless, non-corrosive and difficult to lose. It is widely applied to crops such as rice, wheat, corn, cotton, peanuts, rape, sugar cane, Fruits and Vegetables.
Most of the silicon needed for crops is provided by soil. However, there is very little silicon in the soil that can be absorbed by plants. Especially with the rapid development of agriculture, crops continuously absorb silicon in the soil, resulting in the gradual reduction of available silicon in the soil. According to surveys conducted by the relevant departments, 70% of the Yangtze River valley in China lacks silicon, and about half of the soil in the Yellow River, Huaihai and East Peninsula areas lacks silicon, and the area of ​​silicon deficiency is gradually expanding.
Improve quality and increase production Obviously, silicon is an important nutrient element needed for crop growth. After absorbing silicon, crops can promote root growth and development, improve resistance to lodging, resistance to pests and diseases, drought resistance, cold resistance and nutrient absorption, and can improve the quality of crops, in line with modern "Green food" development requirements.
The prospects for a large amount of demand are better. Currently, about 50% of China's silicon cultivated land is used. If the country applies silicon fertilizer, 50 kg per year is applied, and 30 million to 40 million tons of silicon fertilizer is needed every year. This shows that there is a huge potential for silicon fertilizer market in China. Therefore, the promotion of the production and application of silicon fertilizer has very obvious social and economic benefits. (Wang Lin Jiao)
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