Safe utilization method of lightly and moderately polluted cultivated land

The invention relates to a safe utilization method for lightly and moderately polluted cultivated land. The safe utilization method comprises the following steps: S1, deeply turning over the lightly and moderately polluted cultivated land; s2, a passivating agent is applied to the lightly and moderately polluted cultivated land subjected to deep ploughing; s3, taking measures for preventing heavy metal ions in the soil from being absorbed by crops. Compared with the prior art, the method has the following beneficial effects that a comprehensive safe utilization technology system of'deep plowing passivation + n 'is constructed, and on the basis of organic combination of a deep plowing technology and a soil in-situ passivation technology, other technologies (n) such as alternative planting, soil pH value adjustment and leaf surface resistance and control are additionally adopted according to the actual situation of safe utilization of a target land parcel. The biological passivator not only can be used as a bio