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Method for promoting enrichment of caesium and/or strontium to red spinach by virtue of plant hormone and chelating agent

A technology of plant hormones and red amaranth, which is applied in the restoration of polluted soil and other directions, achieves the effects of good environmental benefits, low maintenance costs and small amount of engineering.

Inactive Publication Date: 2014-07-02
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention significantly improves the ability of red amaranth to absorb cesium and strontium under the combined action of plant hormones (or called plant growth regulators) and chelating agents (EDTA), thereby providing a method that can permanently solve the problem of soil cesium and strontium pollution. The method is low in cost, does not damage the environmental soil structure, does not cause secondary pollution, and has good environmental benefits, social benefits and economic benefits. The method of using plant growth regulators to promote the enrichment of cesium and / or strontium in red amaranth

Method used

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  • Method for promoting enrichment of caesium and/or strontium to red spinach by virtue of plant hormone and chelating agent
  • Method for promoting enrichment of caesium and/or strontium to red spinach by virtue of plant hormone and chelating agent
  • Method for promoting enrichment of caesium and/or strontium to red spinach by virtue of plant hormone and chelating agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Enrichment of red amaranth by compound treatment of phytohormone and chelating agent 133 Cs, 88 Effect of Sr

[0036] This experiment was carried out in the East Sixth Laboratory Building of the School of Life Science and Engineering, Southwest University of Science and Technology. The red amaranth seeds were purchased from Mianyang Yunchuan Seed Company. The control soil was without adding cesium and strontium sources. 133 The application form of Cs is CsCl, and the application concentration is 20mg / kg, 88 The application form of Sr is Sr(NO 3 ) 2 , the application concentration is 20mg / kg, on March 18, 2011, sow red amaranth, grow seedlings in the field, on April 19, after the red amaranth grows 4-6 cotyledons, transplant the seedlings, three plants per pot, and the diameter of the test pot is 30cm. The height is 23cm, and each pot contains 6kg of soil. 133 Cs, 88 Sr was evenly mixed in the soil in the form of aqueous solution, and the red amaranth seedlings wer...

Embodiment 2

[0044] Combined treatment of phytohormone and chelating agent on the transport of red amaranth 133 Cs, 88 Effect of Sr

[0045] The test results show that: from Table 3, it can be concluded that the aboveground part of red amaranth under each treatment is relatively 133 Cs, 88 The transfer coefficients of Sr were all greater than 1, compared with the control, the compound treatment all increased 133 Cs, 88 The enrichment factor of Sr, the watering hormone significantly increased the transport of each fraction compared to the spraying hormone 133 Cs, 88 The ability of Sr, the overall trend of the composite treatment was (SA+EDTA)>(GA+EDTA)>(IAA+EDTA)>control, in which the leaves were 133 Cs, 88 The transport capacity of Sr was significantly higher than that of stem. Under the PIAA treatment, the transfer coefficient value was the smallest, that is, under the combined treatment of IAA and EDTA, the stem and leaf 133 Cs, 88 The transfer coefficient of Sr reaches the min...

Embodiment 3

[0050] Enrichment of red amaranth by compound treatment of phytohormone and chelating agent 133 Cs, 88 Effect of Sr

[0051] The test results show that: through the calculation and statistics of the combined treatment of plant hormones and chelating agents, the roots, stems, leaves, and parts of red amaranth have 133 Cs, 88 The enrichment coefficient of Sr, draw the enrichment coefficient of shoot and root, as shown in Table 4, the enrichment coefficient of each treatment is greater than 1, compared with the control, the compound treatment has all increased 133 Cs, 88 The enrichment factor of Sr, the watering hormone significantly increased the transport of each fraction compared to the spraying hormone 133 Cs, 88 The ability of Sr, the overall trend of the three composite treatments was (SA+EDTA)>(GA+EDTA)>(IAA+EDTA)>control, shoot vs. 133 Cs, 88 The enrichment coefficient of Sr was significantly higher than that of roots, and the leaf 133 Cs, 88The enrichment abilit...

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Abstract

The invention discloses a method for promoting enrichment of caesium and / or strontium to red spinach by virtue of a plant hormone and a chelating agent. The method is characterized by comprising the following steps: planting the red spinach in soil containing a pollutant, namely the caesium and / or the strontium, spraying or irrigating the plant hormone and the chelating agent EDTA (ethylene diamine tetraacetic acid), and harvesting or integrally removing the plant red spinach from the polluted soil in a flowering period or a mature period; further planting the next batch of red spinach, spraying or irrigating the plant hormone and the chelating agent EDTA, integrally removing the plant red spinach from the polluted soil in the flowering period or the mature period, and repeatedly carrying out the processes until the content of the caesium and / or the strontium in the soil reach an environmental safety standard. According to the method, the capacity of the red spinach for absorbing the caesium and / or the strontium is obviously improved under the action of a plant growth regulator, so that a caesium-strontium pollution problem of the soil is perpetually solved; the method has good environmental, social and economic benefits.

Description

technical field [0001] The invention belongs to the treatment of cesium and strontium pollution and the regeneration of polluted soil, and relates to a method for promoting the enrichment of cesium and / or strontium in red amaranth by compounding a plant hormone (or plant growth regulator) and a chelating agent (EDTA). It is suitable for remediation and treatment of cesium and / or strontium contaminated soil. Background technique [0002] Since the middle of the 20th century, with the rapid development of the nuclear industry and nuclear technology, wastes containing radionuclides have inevitably entered the environment. Among the pollution caused by human activities to the natural environment, radionuclide pollution has become a very important environmental problem today. The radionuclides released by nuclear tests or nuclear accidents have attracted widespread attention as the most important potential nuclear pollutants in the environment. On the premise of cost-benefit opt...

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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