The invention discloses a soil heavy
metal restoration agent capable of enhancing organic carbon level. The soil heavy
metal restoration agent is prepared from the following raw materials in parts by weight: 3-5 parts of
calcium oxide, 9-10 parts of tea
powder, 8-10 parts of monoammonium
phosphate, 15-17 parts of
edible fungus dreg, 30-32 parts of wood dust, 2-3 parts of
potassium oxide, 75-90 parts of deseeded
sunflower head, 32-35 parts of maize
straw, 26-30 parts of kaolin, 9-11 parts of
calcium carbonate, 35-38 parts of
slash pine needle and a right amount of water. The
soil restoration agent can simultaneously effectively lower multiple heavy
metal pollutants in polluted soil. The added
fungus dreg, wood dust and the like can enhance the organic carbon level in the soil, thereby enhancing the carbon-
nitrogen ratio of the soil, increasing the holding capacity of the soil for
nitrogen and other
nutrient elements, being beneficial to fertilizing the soil by
fertilizer application, further optimizing the
soil structure, improving the stability, water retentivity, microbial activity,
nutrient exchange and many other factors of the
soil aggregate, and implementing the restoration treatment on the polluted soil.