Method for promoting enrichment of cadmium by red spinach through composition of plant hormone and chelating agent

A plant hormone and red amaranth technology, applied in the restoration of polluted soil, etc., can solve the problems of red amaranth that have not been seen yet, and achieve the effect of improving plant restoration efficiency, strong operability, and low cost

Inactive Publication Date: 2014-08-06
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Considering the dual needs of restoration efficiency and ecological environmental protection, at present, because regulating the hormone level in the body is an important way for plants to adapt to nuclide and heavy metal stress, the research on plant hormones has gradually become a research hotspot, especially the use of these plant hormones to combat Various adversity environments, especially in the application of heavy metals and radionuclide stress, are of great significance, but there is no literature report on the method of using plant hormones and chelating agents to promote the enrichment of cadmium in red amaranth

Method used

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  • Method for promoting enrichment of cadmium by red spinach through composition of plant hormone and chelating agent
  • Method for promoting enrichment of cadmium by red spinach through composition of plant hormone and chelating agent
  • Method for promoting enrichment of cadmium by red spinach through composition of plant hormone and chelating agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Effects of combined treatment of phytohormone and chelating agent on the biomass of red amaranth by foliar spraying

[0033]The potted plant was used in the experiment, and the location was the experimental building of Block A, East Sixth, Southwest University of Science and Technology, Mianyang City, Sichuan Province (E=104°42'N=31°32', altitude: 462m). The climate is a humid subtropical climate, with an average annual precipitation of 800 mm to 1500 mm and an average temperature of 13.7°C to 16.3°C. The soil used in the test is the sample soil of the nursery test base of Southwest University of Science and Technology, and the soil type is yellow loam. Put the soil in a dark and ventilated place to dry naturally, remove the sundries, mash, sieve, and set aside. Sow red amaranth seedlings in the field, and transplant the seedlings after the red amaranth grows 4-6 cotyledon leaves, three plants per pot, the diameter of the test pot is 30cm, the height is 23cm, and each ...

Embodiment 2

[0044] Effects of watering plant hormone and chelating agent compound treatment on the growth of red amaranth

[0045] The test adopts potted plants, and the test site is the experimental building of Building A, East 6th, Southwest University of Science and Technology, Mianyang City, Sichuan Province (E=104°42'N=31°32', altitude: 462m). The climate is a humid subtropical climate, with an average annual precipitation of 800 mm to 1500 mm and an average temperature of 13.7°C to 16.3°C. The soil used in the test is the sample soil of the nursery test base of Southwest University of Science and Technology, and the soil type is yellow loam. Put the soil in a dark and ventilated place to dry naturally, remove the sundries, mash, sieve, and set aside. Sow red amaranth seedlings in the field, and transplant the seedlings after the red amaranth grows 4-6 cotyledon leaves, three plants per pot, the diameter of the test pot is 30cm, the height is 23cm, and each pot is filled with 6kg of...

Embodiment 3

[0056] Effects of compound treatment of phytohormone and chelating agent on foliar spraying on growth index of red amaranth

[0057] The test adopts potted plants, and the test site is the experimental building of Building A, East 6th, Southwest University of Science and Technology, Mianyang City, Sichuan Province (E=104°42'N=31°32', altitude: 462m). The climate is a humid subtropical climate, with an average annual precipitation of 800 mm to 1500 mm and an average temperature of 13.7°C to 16.3°C. The soil used in the test is the sample soil of the nursery test base of Southwest University of Science and Technology, and the soil type is yellow loam. Put the soil in a dark and ventilated place to dry naturally, remove the sundries, mash, sieve, and set aside. Sow red amaranth seedlings in the field, and transplant the seedlings after the red amaranth grows 4-6 cotyledon leaves, three plants per pot, the diameter of the test pot is 30cm, the height is 23cm, and each pot is fill...

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Abstract

The invention discloses a method for promoting enrichment of cadmium by red spinach through composition of a plant hormone and a chelating agent. The method is characterized in that the red spinach is planted in pollutant cadmium-containing soil, and the plant hormone and the chelating agent EDTA are sprayed or irrigated, and when being in the flowering period or the maturation period, the plant red spinach is cut or wholly removed from the polluted soil; then a next batch of the red spinach is further planted, the plant hormone and the chelating agent EDTA are sprayed or irrigated, and when being in the flowering period or the maturation period, the plant red spinach is wholly removed from the polluted soil; the process is repeated until the content of the cadmium in the soil reaches the environmental safety standard. By adopting the method, the absorption, transport and enrichment to the cadmium by the red spinach can be remarkably increased, the phytoremediation efficiency of the cadmium-polluted soil is effectively improved, the method has the characteristics of less investment, low maintenance cost, small work amount and low management technology requirements for repairing of the cadmium-polluted soil, and favorable environmental benefits, social benefits and economic benefits are realized.

Description

technical field [0001] The invention belongs to the control of cadmium pollution and the regeneration of polluted soil, and relates to a method for promoting the enrichment of cadmium in red amaranth by compounding a plant hormone and a chelating agent. It is suitable for using plant hormones (or plant growth regulators) and chelating agents to compound and promote red amaranth to repair cadmium (Cd) polluted soil, thereby repairing and treating polluted soil. Background technique [0002] At present, cadmium (Cd) has been classified as the first carcinogen by the International Agency for Research on Cancer, and Cd is one of the most toxic and most polluting heavy metals. The cadmium content in the soil is 0.01-2mg / kg, which mainly comes from the parent material of the soil. In places where cadmium mineralization occurs and is polluted by industry, the cadmium content in the soil will be more than a hundred times higher than the background value, and some can be as high as t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/00B09C1/10
Inventor 王丹郭梦露唐运来陈晓明罗学刚徐长合
Owner SOUTHWEAT UNIV OF SCI & TECH
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