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A method for improving saline-alkali soil in North China

A saline-alkali soil and soil improver technology, which is applied in the field of saline-alkali soil improvement in North China, can solve the problems that soil improvers are not environmentally friendly, and achieve the effects of increasing accumulation and yield, reducing content, and low cost

Active Publication Date: 2016-09-21
JIANGSU DONGZHU LANDSCAPE CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Soil conditioners currently used for saline-alkali soil improvement are usually not environmentally friendly. Therefore, it is necessary to develop a green and environmentally friendly saline-alkali soil improvement method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A method for improving saline-alkali soil in North China, specifically applying a soil improver to saline-alkali soil, with an application rate of 320kg / hm 2 , and the applied soil improver includes the following components in parts by weight:

[0035] The mixture of humic acid and phosphogypsum with a mass ratio of 1:1: 50 parts;

[0036] Natural zeolite: 10 parts;

[0037] Straw powder: 15 parts;

[0038] Vermicompost: 20 parts;

[0039] Mixture of Spartina alterniflora and sheep manure at a mass ratio of 2:1: 25 parts

[0040] Diatomaceous earth: 8 parts.

[0041] The straw powder is one or both of corn and wheat straw powder.

[0042] The straw powder is prepared by crushing straw into a powder with a particle size of 0.8-1.0 mm, sterilizing at 120-122° C. for 30 minutes, and then drying at 60° C. for 24 hours.

[0043] The mixture of the described Spartina alterniflora and sheep manure is specifically obtained by the following method: removing the roots and th...

Embodiment 2

[0045] A method for improving saline-alkali soil in North China, specifically applying a soil improver to saline-alkali soil, with an application rate of 347kg / hm 2 , and the applied soil improver includes the following components in parts by weight:

[0046] The mixture of humic acid and phosphogypsum with a mass ratio of 1:1: 48 parts;

[0047] Natural zeolite: 9 parts;

[0048] Straw powder: 12 parts;

[0049] Vermicompost: 18 parts;

[0050] Mixture of Spartina alterniflora and sheep manure at a mass ratio of 2:1: 20 parts

[0051] Diatomaceous earth: 6.5 parts.

[0052] The straw powder is one or both of corn and wheat straw powder.

[0053] The straw powder is prepared by crushing straw into a powder with a particle size of 0.8-1.0 mm, sterilizing at 120-122° C. for 30 minutes, and then drying at 60° C. for 24 hours.

[0054] The mixture of the described Spartina alterniflora and sheep manure is specifically obtained by the following method: removing the roots and t...

Embodiment 3

[0056] A method for improving saline-alkali soil in North China, specifically applying a soil improver to saline-alkali soil, with an application rate of 389kg / hm 2 , and the applied soil improver includes the following components in parts by weight:

[0057] The mixture of humic acid and phosphogypsum with a mass ratio of 1:1: 45 parts;

[0058] Natural zeolite: 8 parts;

[0059] Straw powder: 10 parts;

[0060] Vermicompost: 15 parts;

[0061] Mixture of Spartina alterniflora and sheep manure at a mass ratio of 2:1: 15 parts

[0062]Diatomaceous earth: 5 parts.

[0063] The straw powder is one or both of corn and wheat straw powder.

[0064] The straw powder is prepared by crushing straw into a powder with a particle size of 0.8-1.0 mm, sterilizing at 120-122° C. for 30 minutes, and then drying at 60° C. for 24 hours.

[0065] The mixture of the described Spartina alterniflora and sheep manure is specifically obtained by the following method: removing the roots and the ...

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Abstract

The invention provides a method for improving saline-alkali soil in North China. A soil improver is applied to the saline-alkali soil at an application rate of 300-400kg / hm2. The applied soil improver includes the following components in parts by weight: humic acid Mixture with phosphogypsum: 45‑50 parts; natural zeolite: 8‑10 parts; straw powder: 10‑15 parts; vermicompost: 15‑20 parts; mixture of Spartina alterniflora and sheep manure: 15‑25 parts Diatomaceous earth: 5‑8 parts. The pH value of the saline-alkali soil treated by the method of the invention can be reduced by more than 0.85, the content of soil organic matter can be increased by 60-70%, and the crop income can be increased by 8.5-17.2%.

Description

technical field [0001] The invention relates to a method for improving saline-alkali soil in North China. Background technique [0002] Due to geological and climatic reasons, there are large areas of saline-alkali land in northern my country, especially in North China. These saline-alkali lands are not only harmful to agricultural production, but also have obvious effects on urban greening in today's large-scale urban construction. Negative effects. [0003] At present, the improvement methods of saline-alkali land are as follows: [0004] 1. Deep plowing and deep plowing: deep plowing of soil refers to turning over the salt in the surface soil to the bottom of the plow layer, and turning the soil with less salt in the lower layer to the surface. Tilling can loosen the plowing layer, cut off the soil capillary, reduce the evaporation of soil water, and effectively control the return of soil salinity; [0005] 2. Increase the application of organic fertilizers and rational...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40C09K109/00
Inventor 马晓红缪春晓
Owner JIANGSU DONGZHU LANDSCAPE CONSTR
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