<正> INTRODUCTION Soil acidification due to acid deposition has been one of the major environmental prob-lems concerned by soil scientists and ecologists for th
A method determining di-and tri-valent cobalt extracted from soils with EDTA·HOAc·NH4OAc solution (pH4.65) was developed based on the difference of th
Adsorption of potassium and sodium ions by four typical variable charge soils of South China was studied.The results indicated that the variable charge soils sa
<正> INTRODUCTION The insoluble phosphates which can not be directly absorbed by plants are the mai forms of inorganic phosphate in soil. These kinds of phospha
Elovich,two-constant,parabolic diffusion,exponential,second-order,first-order and zero-order equations were used to describe the kinetic characteristics of pota
The leaching characteristics and the element concentration in soil solution of red soils derived from sandstone,granite,Quaternary red clay and basalt have been