Method for intercropping amaranthus hypochondriacus and wheat in cadmium-contaminated soil

A technology for cadmium-contaminated soil and amaranth seeds is applied in the restoration of polluted soil, botanical equipment and methods, land preparation methods, etc., and can solve the problems of insufficient source of passivation materials, unstable effect, and poor repeatability. Achieve the effect of improving grinding efficiency, improving grinding quality and reducing cadmium concentration

Active Publication Date: 2020-09-01
AGRO ENVIRONMENTAL PROTECTION INST OF MIN OF AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sources of passivation materials in papers and patents are not extensive (such as chicken manure, etc.), the application amount is large (mostly more than 1 ton / mu), the effect is unstable, and the repeatability is not good (clay minerals, iron manganese oxides, biological carbon, humic acid, etc.)

Method used

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  • Method for intercropping amaranthus hypochondriacus and wheat in cadmium-contaminated soil
  • Method for intercropping amaranthus hypochondriacus and wheat in cadmium-contaminated soil
  • Method for intercropping amaranthus hypochondriacus and wheat in cadmium-contaminated soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The test area of ​​the present embodiment is that the area containing 2mg / kg Cd is 1m 2 There are 3 parallel groups in total.

[0046] The method for intercropping grain amaranth and wheat on the cadmium-contaminated soil comprises the following steps: uniformly spreading the cadmium-contaminated soil remediation agent on the surface of the cadmium-contaminated soil, and then plowing the cadmium-contaminated soil to make the cadmium-contaminated soil remediation agent Fully mix with cadmium-contaminated soil, complete the restoration of cadmium-contaminated soil after 5 days, and evenly intercrop grain amaranth and wheat on the repaired soil. Use compound fertilizer during the growth process of grain amaranth and wheat. After the wheat grains mature, at the same time Harvest grain amaranth and wheat.

[0047] Described compound fertilizer is the combination of poultry manure, phosphate fertilizer, nitrogen fertilizer and potash fertilizer, and the mass ratio of describ...

Embodiment 2

[0067] The test area of ​​the present embodiment is that the area containing 2mg / kg Cd is 1m 2 There are 3 parallel groups in total.

[0068] The method for intercropping grain amaranth and wheat on the cadmium-contaminated soil comprises the following steps: uniformly spreading the cadmium-contaminated soil remediation agent on the surface of the cadmium-contaminated soil, and then plowing the cadmium-contaminated soil to make the cadmium-contaminated soil remediation agent Fully mix with cadmium-contaminated soil, complete the restoration of cadmium-contaminated soil after 5 days, and evenly intercrop grain amaranth and wheat on the repaired soil. Use compound fertilizer during the growth process of grain amaranth and wheat. After the wheat grains mature, at the same time Harvest grain amaranth and wheat.

[0069] Described compound fertilizer is the combination of poultry manure, phosphate fertilizer, nitrogen fertilizer and potash fertilizer, and the mass ratio of describ...

Embodiment 3

[0080] The test area of ​​the present embodiment is that the area containing 2mg / kg Cd is 1m 2 There are 3 parallel groups in total.

[0081] The method for intercropping grain amaranth and wheat on the cadmium-contaminated soil comprises the following steps: uniformly spreading the cadmium-contaminated soil remediation agent on the surface of the cadmium-contaminated soil, and then plowing the cadmium-contaminated soil to make the cadmium-contaminated soil remediation agent Fully mix with cadmium-contaminated soil, complete the restoration of cadmium-contaminated soil after 5 days, and evenly intercrop grain amaranth and wheat on the repaired soil. Use compound fertilizer during the growth process of grain amaranth and wheat. After the wheat grains mature, at the same time Harvest grain amaranth and wheat.

[0082] Described compound fertilizer is the combination of poultry manure, phosphate fertilizer, nitrogen fertilizer and potash fertilizer, and the mass ratio of describ...

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Abstract

The invention provides a method for intercropping amaranthus hypochondriacus and wheat in cadmium-contaminated soil. The method comprises the following steps of uniformly spreading a cadmium-contaminated soil remediation agent on the surface of the cadmium-contaminated soil, then plowing the cadmium-contaminated soil to sufficiently mix the cadmium-contaminated soil remediation agent with the cadmium-contaminated soil, completing remediation of the cadmium-contaminated soil in 3-5 days, evenly intercropping the amaranthus hypochondriacus and the wheat in the remediated soil, adopting compoundfertilizer in a growth process of the amaranthus hypochondriacus and the wheat, and after wheat grains are mature, harvesting the amaranthus hypochondriacus and the wheat at the same time. According to the method for intercropping the amaranthus hypochondriacus and the wheat in the cadmium-polluted soil, the absorption and transfer of the wheat to cadmium are inhibited by adopting an amaranthus hypochondriacus intercropping method, and meanwhile, the compound fertilizer and the remediation agent are combined for use, so that the cadmium concentration of each part of the wheat is greatly reduced, and the quality of the wheat planted in the cadmium-polluted soil is improved.

Description

technical field [0001] The invention belongs to the field of phytoremediation technology of heavy metal-contaminated soil and the technical field of agricultural product quality and safety, and in particular relates to a method for intercropping grain amaranth and wheat on cadmium-contaminated soil. Background technique [0002] Farmland is an important part of the human ecological environment, the material basis for sustainable economic and social development, and one of the main natural resources on which human beings depend, directly related to the lives and health of the people. Since the 1990s, with the rapid development of industrialization, urbanization, and agricultural modernization, toxic heavy metals from various sources have entered the farmland environment in multiple forms, in multiple ways, and in multiple ways, such as water, gas (dust), slag, fertilizer, and medicine. , causing large areas of farmland to be polluted by heavy metals. Cd has strong accumulati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/00A01G22/20A01B79/02A01B49/04A01B49/02B01F13/10B01F15/02B09C1/10B09C1/00C09K17/40C09K101/00
CPCA01G22/00A01G22/20A01B79/02A01B49/04A01B49/022B09C1/105B09C1/10B09C1/00C09K17/40B09C2101/00C09K2101/00B01F33/82B01F33/831B01F35/7179B01F35/754
Inventor 宋正国王凯王迪
Owner AGRO ENVIRONMENTAL PROTECTION INST OF MIN OF AGRI
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