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Improving medium for saline-alkali land and preparation method thereof

A soil improvement and saline-alkali land technology is applied in the field of saline-alkali land soil improvement medium and its preparation, which can solve the problems of poor effect, high input, soil compaction, etc., and achieve the effect of preventing the rise of salt content

Active Publication Date: 2013-03-13
李学麒
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional method of soil improvement in saline-alkali land mainly uses gypsum to replace sodium in the soil. This method requires high investment and the effect is not very good; there is also the use of calcium sulfate to replace sodium. The use of calcium sulfate increases the salinity of the soil and requires rinsing. This method is prone to soil compaction

Method used

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  • Improving medium for saline-alkali land and preparation method thereof
  • Improving medium for saline-alkali land and preparation method thereof
  • Improving medium for saline-alkali land and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A saline-alkali land soil improvement medium is prepared by a method comprising the following steps:

[0031] (1) Take the following 20% ​​humic acid, 45% maleic acid, 5% oxalic acid, 15% dioctyl sodium sulfosuccinate, and 15% humic acid to make a mixed acid solution by weight percentage ;

[0032] (2) Take 1-3 liters of mixed acid solution and dilute to 100 liters with water;

[0033] (3) Add moss at the ratio of 100 liters of diluted acid solution to 20 kg of moss;

[0034] (4) Soak in warm water at 10-30°C for 12-36 hours;

[0035] (5) Take out the soaked bryophytes and dry them naturally in an environment with a relative humidity of 40%, so that the water content is below 38%;

[0036] (6) Add natural zeolite to the bryophytes in step (5) at a ratio of 0.1 kg of natural zeolite per kilogram of bryophytes, mix evenly, and pack into bags.

Embodiment 2

[0038] Carry out according to the method step of implementation 1, difference is: prepare mixed acid solution by following weight percentage: humic acid 30%, maleic acid 40%, oxalic acid 3%, dioctyl sodium succinate sulfonate 15%, Humic acid 12%.

Embodiment 3

[0040] Carry out according to the method step of implementing 1, difference is: prepare mixed acid solution by following weight percentage: humic acid 30%, maleic acid 35%, oxalic acid 5%, dioctyl sodium succinate sulfonate 20%, Humic Acid 10%.

[0041] The saline-alkali soil improvement medium provided by the present invention can be applied in different amounts according to different types of saline-alkali land, such as the application amount of severe saline-alkali land is about 10 kg / square meter, the application amount of moderate saline-alkali land is about 8 kg / square meter, and the application amount of mild saline-alkali land is about 8 kg / square meter. The input amount is about 5 kg / square meter.

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Abstract

The invention discloses a soil improving medium for saline-alkali land and a preparation method thereof. The soil improving medium is prepared by taking moss as an organic carrier to adsorb a mixed acid solution composed of 15-30% of humic acid, 5-15% of humic acid, 25-45% of cis-butenedioic acid, 2-10% of oxalic acid and 15-20% of sodium dioctyl sulfosuccinate, drying until the water content is less than 38% and then adding natural zeolite. As a moss plant in the soil improving medium has abundant sieve tubes and multiple gap microscopic structures, the soil improving medium is used as the carrier to be adsorbed in the sieve tubes of the moss plant and then the natural zeolite is added after the soil improving medium is dried. Therefore, the soil improving medium provided by the invention has the advantages of acidity, absorbability and solubility; the pH value of the soil is reduced, the salt content is reduced, the density is reduced and the organic matter is increased, therefore, the salt content in underground water is prevented from being raised.

Description

Technical field [0001] The invention involves the improvement of the soil of saline -alkali land, which is specifically the improved medium of saline -alkali soil and its preparation methods. Background technique [0002] Improvement of saline -alkali land is a worldwide problem, with a global saline -alkali area of more than 900 million hectares.my country ’s various saline -alkali land reaches 100 million hectares. Salt soil is part of my country's important land resources. The salt soil in wasteland resources occupies a large proportion.The method of improving the traditional saline -alkali soil soil is mainly to use gypsum to replace sodium in the soil. This method is high and the effect is not very good. There is also the use of calcium sulfate to replace sodium. The use of calcium sulfate adds the salt of the soil.This method is easy to cause soil knots. Invention content [0003] The purpose of the present invention is to provide a reflection of the existing technology, p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40
Inventor 李学麒
Owner 李学麒
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