Heavy metal may be harmful to crops when its content in soils goes beyond the normal level.In this paper

discussion on content of Cu

Pb

Zn

Cd

Cr

Ni in agriculture soils in Nanhai city was presented.The content of heavy metal in agriculture soils is controlled by a series of factors such as irrigation of field with waste water

soil parent material

soil property

etc.The content of heavey metal in the southern and eastern regions of Nanhai city is more higher than in the northern and western part.