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Saline-alkali soil modifier and preparation method and application thereof

A technology of improver and saline-alkali land, applied in the field of saline-alkali land improver and its preparation and application, can solve the problems of high cost, complex production process, and inability to be popularized in a large area, and achieve low application cost, simple production method, and increase production Effect

Active Publication Date: 2013-09-04
新疆保利兴农生物有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these improvers have obvious effects on improving saline-alkali soil, they cannot be popularized on a large scale due to limitations such as complex production process, high cost and other conditions.

Method used

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  • Saline-alkali soil modifier and preparation method and application thereof
  • Saline-alkali soil modifier and preparation method and application thereof
  • Saline-alkali soil modifier and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: produce 100 kilograms of products by weight ratio:

[0019] 23% of biochar, 55% of phosphogypsum, 15% of ammonium humate, 5% of urea, and 2% of citric acid were fully mixed in proportion to obtain a mixture;

[0020] Then add the mixture to 30% water of the mass of the material and mix evenly, enter the conventional granulator for granulation, and then carry out drying and dehydration. The moisture content of the dehydrated material is 3%, grading, sieving, and packaging to obtain the saline-alkaline soil improver;

[0021] When in use, according to the total soil salt content of 0.4-0.6%, apply 100-200kg of improver per mu; if the total soil salt is 0.6-1.2%, apply 200-500kg of improver per mu.

Embodiment 2

[0022] Embodiment 2: produce 100 kilograms of products:

[0023] 50% of biochar, 34% of phosphogypsum, 10% of ammonium humate, 5% of urea, and 1% of citric acid were fully mixed in proportion to obtain a mixture;

[0024] Add the mixture to 35% water of the mass of the material and mix it evenly. After being granulated in a conventional granulator, it is dried and dehydrated. The moisture content of the dehydrated material is 5%, graded, sieved, and packaged to obtain a saline-alkaline soil improver;

[0025] When in use, according to the total soil salt content of 0.4-0.6%, apply 100-200kg of improver per mu; if the total soil salt is 0.6-1.2%, apply 200-500kg of improver per mu.

Embodiment 3

[0026] Embodiment 3: produce 100 kilograms of products:

[0027] 60% of biochar, 20% of phosphogypsum, 15% of ammonium humate, 3.5% of urea, and 1.5% of citric acid were fully mixed in proportion to obtain a mixture;

[0028] Add the mixture to 38% water of the mass of the material and mix it evenly. After entering the conventional granulator for granulation, it is dried and dehydrated. The moisture content of the dehydrated material is 8%. It is graded and sieved, and packaged to obtain the saline-alkaline soil improver;

[0029] When in use, according to the total soil salt content of 0.4-0.6%, apply 100-200kg of improver per mu; if the total soil salt is 0.6-1.2%, apply 200-500kg of improver per mu.

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Abstract

The invention relates to a saline-alkali soil modifier and a preparation method and application of the saline-alkali soil modifier. The modifier is prepared from charcoal, ardealite, ammonuim humate, urea and citric acid. The saline-alkali soil modifier is obtained through fully mixing the charcoal, ardealite, ammonuim humate, urea and citric acid according to the proportions, adding water, mixing uniformly, pelleting through a conventional pelletizer, drying and dehydrating. The obtained saline-alkali soil modifier is applied in Kashi Prefecture, Hotan Prefecture, Akesu Prefecture and Changji Prefecture in Xinjiang Province respectively in 2010 and 2011 to conduct the contrast test in the fields, after each of the test sites is cultivated for a year, the total salt content of the soil is decreased by 36.1%-58.6%, the pH of the soil is decreased by 0.07-0.43, and the yield rate of the crop yield is up to 9.9%-22.3%. The saline-alkali soil modifier provided in the invention is simple in preparation method and relatively low in application cost, and can effectively reduce the total salt and the pH of the soil and remarkably increase the crop yield. The disadvantages and the defects of the existing modifier are overcome.

Description

technical field [0001] The invention relates to a saline-alkali soil improver, a preparation method and application thereof. Background technique [0002] Soil salinization is the main soil problem facing our country. There are more than 20 million hectares of saline wasteland and 6.7 million hectares of salinized land in our country, which cannot be cultivated normally. Saline-alkali soil refers to harmful salts such as potassium, sodium, calcium and magnesium chlorides, sulfates, and bicarbonates in the soil. The main characteristics of saline-alkali soil are high pH value, containing harmful salt, which seriously restricts the growth of plants; among them, sodium ions can seriously inhibit and poison the growth of plant roots. How to quickly reduce the salinity of saline-alkali land and restore vegetation through simple methods has become a difficult problem for the government and scientists. [0003] At present, the methods of improving saline-alkali land are as follow...

Claims

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Application Information

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IPC IPC(8): C09K17/40C09K109/00
Inventor 葛春辉何红陈岐峰杨博耿庆龙孙九胜王新勇刘易邵华伟祁通胡伟吴湘琳孟阿静
Owner 新疆保利兴农生物有限公司
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