The changes of clay mineral association after high-gradient magnetic separation(HGMS) treatment,and the effects of chemical and physical technologies on concent
7Be penetrative depth in undisturbed surface soil is within 4mm.^7Be activity shows exponential decrease with soil depth,which is expressed as a diffusion proce
The effects of boron deficiency on the membrane permeability,the lipid peroxidation of membrane ,the activities of the protective enzymes and the accumulation o