Passivation regulator for remediating heavy-metal-polluted farmland and preparation and use method thereof
A technology of heavy metals and regulators, applied in applications, urea compound fertilizers, organic fertilizers, etc., can solve the problems of soil nutrient loss, high risk of secondary pollution, affecting crop yields, etc., to promote absorption, improve soil physical and chemical properties, The effect of improving the growth environment of microorganisms
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Embodiment 1
[0028] A passivation regulating agent for repairing heavy metal polluted cultivated land, its raw materials include 40-50 parts by weight of organic fertilizer, 30-50 parts of limestone and 3-5 parts of microbial inoculum, the microbial inoculum includes Bacillus subtilis and Bacillus licheniformis Bacillus and Paenibacillus polymyxa.
Embodiment 2
[0030] All the other are consistent with embodiment 1, also comprise starch binder and urea, the weight ratio of described starch binder and urea is 2:1, the add-on of starch binder and urea mixture is organic fertilizer, limestone and microorganism 2-4% of the total mass of the bacterial agent mixed system.
Embodiment 3
[0032] The rest are consistent with Example 1 or 2, and the microbial inoculum is a microbial inoculum prepared by mixing Bacillus subtilis, Bacillus licheniformis and Paenibacillus polymyxa in a ratio of 2:2:1 in parts by weight.
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