Treatment method for remediation of heavy metal polluted soil by interplanting economic crops and leguminous plants
A technology of leguminous plants and economic crops, which is applied in the field of soil phytoremediation, can solve the problems of unbalanced soil nutrient consumption and single crop rotation form, and achieve the effects of reduced application, balanced soil nutrients, and high beneficial ingredients
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Embodiment 1
[0024] Example 1: For mild heavy metal cadmium pollution of paddy land.
[0025] 1. Plant oil sunflower according to the conventional method.
[0026] The planting time is in early and mid-May. Before planting, apply organic fertilizer according to the conventional amount, and do a good job in field management, fertilizer and water management, and pest control. In mid-September, the back of the oil sunflower disk turns yellow, the stems turn yellow, and when the middle and upper leaves turn green and turn yellow, they reach physiological maturity and are harvested.
[0027] 2. Interplant soybeans according to conventional methods.
[0028] During the oil sunflower planting period, soybeans were interplanted and sowed at the same time as the oil sunflower. After maturity, the soybean stalks are harvested, and the roots are reserved for plowing into the soil for fertilizer.
[0029] 3. After the oil sunflower is harvested, continue to plow the land, and plant rapeseed accordi...
Embodiment 2
[0040] Example 2: Moderately heavy metal cadmium, lead and arsenic compound polluted dry land.
[0041] 1. Plant corn according to the conventional method first, and interplant soybeans during the period.
[0042] 2. Plant rapeseed according to the conventional method, during which milk vetch is routinely interplanted.
[0043] 3. Plant oil decane according to conventional methods, during which soybeans are routinely interplanted.
[0044] Fourth, plant rapeseed according to the conventional method, during which milk vetch is routinely interplanted.
[0045] 5. Plant sorghum according to conventional methods, and interplant soybeans during the period.
[0046] Sixth, plant rapeseed according to conventional methods, during which milk vetch is routinely interplanted.
[0047] 7. Then plant oil decane according to the conventional method, during which soybeans are routinely interplanted.
[0048] 8. Finally, rapeseed was planted according to conventional methods, during whic...
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