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沸石是一族含水的碱金属和碱土金属的架状硅铝酸盐.它具有独特的内部结构和结晶化学性质,富有大小不同的、连通各种形态的孔腔,在一定的物理化学条件下,具有精确而固定的直径,结构比较稳定,除具有较强的离子交换性外,还具有良好的交换选择性,吸附分离性(筛分性),反应性和催化性等.天然沸石在农业上应用最早的国家是日本,主要用于改良土壤,并认为特别有效.
Zeolites are a family of hydrous alkali metal and alkaline earth metal framework aluminosilicates which have unique internal structure and crystallographic chemistry, are rich in different sizes and are connected to various forms of cavities. Under certain physical and chemical conditions, With a precise and fixed diameter, the structure is relatively stable, in addition to having strong ion exchange, but also has good exchange selectivity, adsorption separation (screening), reactivity and catalytic nature of natural zeolite in agriculture The first country to be used was Japan, which was mainly used to improve soils and was found to be particularly effective.