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钾是地壳中分布最广的第七种元素,是植物生长必不可少的养分.钾的氯化物和硫酸盐在水中的溶解度大,易被植物吸收,因此,世界钾盐产量的95%用于农肥,其余5%用于化工、医药、航空汽油、炸药以及钢铁和铝合金的热处理等方面.钾肥的施用,能使植物根系发育、茎杆粗壮、籽粒饱满;能增强抗旱、抗寒、抗病虫害的能力;能改善各种农产品的品质;对水稻、小麦、花生、黄豆、棉花、水果、烟草等有明显的增产效果.因此,钾肥资源的多少是关系到实现农业现代化宏伟目标的大问题.
Potassium is the seventh most widely distributed element in the earth’s crust and an essential nutrient for plant growth. Potassium chlorides and sulfates have high solubility in water and are easily absorbed by plants. Therefore, 95% of the world’s potash production is used. In agriculture fertilizer, the remaining 5% is used in chemical industry, medicine, aviation gasoline, explosives, and heat treatment of steel and aluminum alloys. The application of potash fertilizer can make the roots of plants grow, the stalks are thick, and the grain is full; it can enhance drought resistance and cold resistance. The ability to resist pests and diseases can improve the quality of various agricultural products; it has significant yield-increasing effects on rice, wheat, peanuts, soybeans, cotton, fruits, tobacco, etc. Therefore, the amount of potash fertilizer resources is related to the grand goal of achieving agricultural modernization. problem.