土壤含钾矿物的释钾研究进展

介绍土壤中含钾矿物的类型、结构特点、钾素含量与钾素释放的关系,区分了含钾矿物在土壤中的构成及分布特点,同时对国内外关于含钾矿物钾素释放规律的研究状况,钾素释放的作用机理、动力学特性,以及影响土壤含钾矿物钾素释放的因素做了综述。

Progress in Research on Potassium Release from K-beared Minerals in Soil

The total amount of K-beared minerals, especially in the north of o ur country is more than 1/3 of the total amount of minerals in soils. K-beared m inerals are the main source of K and other nutritive elements in soil, and they are of great importance to agricultural productivity and to the chemical and phy sical properties of soils. The relationship between the types,structure charact eristics and K contents of K-beared minerals and potassium releases were describ ed in this paper,and the constitutions of K-beared minerals and their distribut ion characteristics were described,too. At the same time, the mechanism of potas sium release,kinetic characteristics of K-beared minerals and the factors which affected potassium release were summarized.