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Plant stress-resistant phosphogypsum saline-alkali soil conditioner and application thereof

A saline-alkali soil and plant stress resistance technology, which is applied in the direction of plant growth regulators, plant growth regulators, applications, etc., can solve the problems of large-scale and easy availability of raw materials, narrow scope, limited transportation of biological fermentation methods, Standards and other issues, to improve the degree of soil salinization, protect the environment, improve the survival rate and efficiency

Inactive Publication Date: 2021-12-10
YUNNAN CHEM RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the biological fermentation method is limited by transportation and standards, and should have a narrow scope, which cannot solve the contradiction between scale and raw material availability

Method used

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  • Plant stress-resistant phosphogypsum saline-alkali soil conditioner and application thereof
  • Plant stress-resistant phosphogypsum saline-alkali soil conditioner and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The anti-stress enzyme chelate combination is: copper chelating ligand N,N,N',N'-tetra(methylbenzimidazole)ethylenediamine, which accounts for 1-9% by mass; zinc chelating N, N,N',N'-tetrakis(methylbenzimidazole)ethylenediamine, the proportion of which is 9-1% by mass.

[0019] In 2019, a field test was carried out on the sandy saline-alkali soil of Daquan Township, Shawan County, Shihezi, Xinjiang. The soil salt content was 0.13%, the pH value was 7.94, the organic matter was 0.96%, the available nitrogen was 51ppm, and the available phosphorus was 7.8ppm. Potassium 337.4ppm. The control conditions for planting per acre are:

[0020] Use 25 kilograms of soil improver of the present invention, 8 kilograms of potassium sulfates of fertilizer consumption, 18 kilograms of urea, 8 kilograms of diammonium phosphate, after mixing uniformly, soil improver and fertilizer are applied to sowing row, sow after covering soil. The comparison conditions are:

[0021] Control (1) N...

Embodiment 2

[0031] The anti-stress enzyme chelate combination is: iron chelating ligand N,N,N',N'-tetra(methylbenzimidazole)ethylenediamine, which accounts for 1-9% by mass; manganese chelating N, N,N',N'-tetrakis(methylbenzimidazole)ethylenediamine, the proportion of which is 9-1% by mass.

[0032] From 2017 to 2019, the improved soil seedling transplanting and planting experiment was carried out in the sandy saline-alkali soil of Jinchang City, Gansu Province. The adjacent 90 mu of land was selected. There was no shelter around the land, no rivers, the soil salt content was 0.11%, and the pH value was 8.33. Organic matter 1.06%, available nitrogen 46ppm, available phosphorus 12.4ppm, available potassium 64ppm. The planted saplings are Chinese pagoda tree, orientalis and white elm, with a size of 5 cm diameter at breast height and transplanted with soil balls, and the density is 80 plants / mu.

[0033] In 2017, after transplanting at the beginning of March, 30 kilograms of the soil impro...

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Abstract

The invention relates to a plant stress-resistant phosphogypsum saline-alkali soil conditioner and application. The saline-alkali soil conditioner is composed of phosphogypsum, a molar salt, an enzyme-mimetic chelate combination and a solvent, wherein the enzyme-mimetic chelate combination comprises an enzyme-mimetic chelate and a solvent, the central metal ions of the enzyme-mimetic chelate are Fe, Cu, Mn and / or Zn, and the ligand is a compound of N, N, N', N'-tetra (methylbenzimidazole) ethylenediamine. According to the invention, the plant stress-resistant phosphogypsum saline-alkali soil conditioner has the characteristics of regulating the pH value of soil, reducing the bulk density of the soil and reducing the alkalization degree of the soil, and also endogenously induces a stress resistance mechanism of plants in severe environments such as salt stress, drought, large evaporation capacity, large temperature difference and the like, so that the survival rate and the planting efficiency are improved, and the planting labor intensity after sand type saline-alkali improvement is reduced; and the raw materials are not limited by geographical conditions, the application way and range of phosphogypsum as the soil conditioner are deepened and widened, and the the plant stress-resistant phosphogypsum saline-alkali soil conditioner has good social and economic benefits and outstanding ecological benefits.

Description

technical field [0001] The invention relates to a plant stress-resistant phosphogypsum saline-alkali soil improver and its application, in particular to a plant-growth stress-resistant enzyme chelate combination, a saline-alkali soil improver and its application, belonging to the technical field of soil improvers. Background technique [0002] The emission of phosphogypsum in my country is as high as 50 million tons per year. By applying gypsum to saline-alkali land, the calcium ions in the gypsum replace the positive ions such as sodium ions in the soil colloid, and it is proved to be a low-cost saline-alkali soil improvement agent. However, saline-alkali soil is mainly distributed in underdeveloped areas in my country. Affected by the drought, cold and large temperature difference in the natural environment, the plant growth cycle is long, the survival rate is low, and the planting economy is poor. Therefore, improving the stress resistance of crops planted in the modifie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/48A01N59/06A01N55/02A01P21/00B09C1/08A01B79/02C09K101/00C09K109/00
CPCC09K17/48A01N59/06A01N55/02B09C1/08A01B79/02C09K2101/00C09K2109/00
Inventor 李骥曾波任思宇刘进李灿缪明志
Owner YUNNAN CHEM RES INST
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