SOIL HEAVY METAL CURING AGENT FOR CONTROLLING ACCUMULATION OF HEAVY METALS OF CROPS AND PREPARATION METHOD THEREOF

摘要

The present invention relates to the technical field of fertilizers. Disclosed are a soil heavy metal curing agent for controlling accumulation of heavy metals of crops and a preparation method thereof. The soil heavy metal curing agent is prepared by using the following raw materials in parts by weight: 60 to 140 parts of substances containing carbon-carbon double bonds, 1 to 400 parts of sulfocompounds calculated by sulfur, 50 to 500 parts of organic materials with water content of 10%, 0 to 400 parts of water, 0 to 100 parts of an initiator, 0 to 200 parts of a reducing agent, and 0 to 200 parts of alkali. The soil heavy metal curing agent of the present invention can reduce the content of cadmium, lead, and mercury in a soil solution, and greatly reduce absorption of roots on these heavy metals.