5Leep N W,Dickinson N W.Fungicide-derived copper in tropical plantation crops[A].Ross S M.Toxic metals in soil-plant systems[M].London:John Wiley&Sons Lid,1994.367-393
5Leep N W, Dickinson N M. Fungicide-derived copper in tropical plantation crops[ A ]. Ross S M. Toxic metals in soil-plant systems IMP. London: John Wiley & Sons Lid, 1994. 367-393.
6Tylor G. Heavy metal pollution, phosphatase activity and mineralization of organic phosphorus in forest soil[J]. Soft Biol Biochem, 1976, 8:327.
