Improvement method of saline alkali soil in North China areas

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 alkalinity, and improving soil nutrients

Active Publication Date: 2014-10-15
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 friendl

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033] Example 1

[0034] A method for improving saline-alkali soil in North China, specifically applying a soil amendment to the saline-alkali soil, the application rate is 320kg / hm2, and the applied soil amendment includes the following components by weight:

[0035] A 1:1 mixture of humic acid and phosphogypsum: 50 parts;

[0036] Natural zeolite: 10 parts;

[0037] Straw powder: 15 parts;

[0038] Vermicompost: 20 parts;

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

[0040] Diatomaceous earth: 8 parts.

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

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

[0043] The mixture of Spartina alterniflora and sheep dung is specifically obtained by the following method: removing the roots and leaves with higher salt content of Spartina alternif...

Example Embodiment

[0044] Example 2

[0045] A method for improving saline-alkali soil in North China, specifically applying a soil amendment to the saline-alkali soil, the application rate is 347kg / hm2, and the applied soil amendment includes the following components by weight:

[0046] A 1:1 mixture of humic acid and phosphogypsum: 48 parts;

[0047] Natural zeolite: 9 parts;

[0048] Straw powder: 12 parts;

[0049] Vermicompost: 18 parts;

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

[0051] Diatomaceous earth: 6.5 parts.

[0052] The straw meal is one or two of corn and wheat straw meal.

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

[0054] The mixture of Spartina alterniflora and sheep dung is specifically obtained by the following method: removing the roots and leaves with higher salt content of Spartina alterniflo...

Example Embodiment

[0055] Example 3

[0056] A method for improving saline-alkali soil in North China, specifically applying a soil amendment to the saline-alkali soil, the application rate is 389kg / hm2, and the applied soil amendment includes the following components by weight:

[0057] A 1:1 mixture of humic acid and phosphogypsum: 45 parts;

[0058] Natural zeolite: 8 parts;

[0059] Straw powder: 10 parts;

[0060] Vermicompost: 15 parts;

[0061] A mixture of Spartina alterniflora and sheep dung with a mass ratio of 2:1: 15 parts

[0062] Diatomaceous earth: 5 parts.

[0063] The straw meal is one or two of corn and wheat straw meal.

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

[0065] The mixture of Spartina alterniflora and sheep dung is specifically obtained by the following method: removing the roots and leaves with higher salt content of Spartina alternifl...

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PUM

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Abstract

The invention provides an improvement method of saline alkali soil in North China areas. The method lies in that a soil improvement agent with an application rate of 300 to 400 kg/ hm<2> is applied in saline alkali soil, and the applied soil improvement agent comprises the following components in parts by weight: 45 to 50 parts of a mixture of humic acid and phospho gypsum, 8 to 10 parts of natural zeolite, 10 to 15 parts of straw powder, 15 to 20 parts of wormcast, 15 to 25 parts of a mixture of spartina alterniflora and sheep manure and 5 to 8 parts of diatomaceous earth. According to the improvement method of the saline alkali soil in North China areas, the PH value of the saline alkali soil treated through adopting the method is reduced by 0.85 above, the organic content of the soil is increased by 60% to 70%, and the crop yield is increased by 8.5% to 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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IPC IPC(8): C09K17/40C09K109/00
Inventor 马晓红缪春晓
Owner JIANGSU DONGZHU LANDSCAPE CONSTR
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