Conditioner for repairing farmland soil polluted by heavy metals and preparation method
A conditioner and heavy metal technology, applied in soil conditioning materials, chemical instruments and methods, agriculture, etc., can solve the problems of re-release of heavy metal ions, reduce the effectiveness of heavy metals, crop poisoning, etc., and achieve rapid and continuous stability by increasing the pH value Repair effect, no secondary pollution effect
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Embodiment 1
[0033] Embodiment 1: a kind of conditioner of improving heavy metal polluted farmland soil, it is made of following four kinds of raw materials of weight percent:
[0034]
[0035] A conditioner for improving farmland soil polluted by heavy metals, the steps of which are: uniformly mixing raw lime, calcium magnesium phosphate fertilizer, zeolite and sepiolite in proportion to obtain the product, which is a farmland soil conditioner for reducing heavy metal pollution in farmland .
Embodiment 2- Embodiment 10
[0036] Embodiment 2-embodiment 10: a kind of conditioner of improving heavy metal polluted farmland soil, it is made of following four kinds of raw materials of weight percent:
[0037] Example
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4
5
6
7
8
9
10
quicklime
40%
40%
45%
45%
50%
55%
55%
60%
60%
calcium magnesium phosphate fertilizer
30%
25%
25%
30%
20%
15%
15%
15%
15%
10%
20%
15%
10%
20%
25%
20%
20%
15%
meerschaum
20%
15%
15%
15%
10%
5%
10%
5%
10%
[0038] Its preparation steps are identical with embodiment 1.
[0039] The pilot test of the above-mentioned improved heavy metal polluted farmland soil conditioner is as follows:
[0040] During 2014, field pilot tests were carried out in Lukou Town, Changsha County, Hunan Province and Huangjin Township, Wangcheng District. Both of the ab...
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