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Bentonite as sandy soil improver and application thereof

A technology of sandy soil and bentonite, applied in application, soil conditioning materials, organic fertilizers, etc., can solve the problems of high price of humic acid and microbial inoculants, inability to uniformly improve soil physical and chemical properties, and increase soil aggregate structure, etc. Good improvement effect, increase farmers' income, and ensure the effect of food safety

Inactive Publication Date: 2012-06-27
郝国成
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this technology are: humic acid and microbial agents are expensive; the scope of application is narrow, and it is only suitable for the degraded sandy soil where licorice is planted; the use of furrow application of soil remediation preparations cannot uniformly improve the physical and chemical properties of the soil; the effect is slow, and it takes 1 -2 years to be effective
[0005] There is also a soil improvement and moisture retention agent (CN 1597844A) using acrylic acid as the main component, but acrylic acid is a chemical preparation, which not only has high cost and potential secondary pollution risks, but also does not have the effect of increasing the soil aggregate structure

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] This experiment was arranged in Shuanghe Village, Dazhen Town, Naiman Banner, Tongliao City, Inner Mongolia. The soil quality was measured as moderate desertification before improvement. Before the transformation of the demonstration field, only some low-yielding crops can be planted, such as: mung beans, buckwheat, etc., and it needs to be irrigated 6 times a year, and each irrigation needs 60 minutes per mu. Before the fall of the previous year, the bentonite was pressed to 30t / hm 2 Evenly spread on the surface of sandy soil, combined with the operation of the rotary tiller, so that the bentonite and sandy soil are evenly mixed in the plow layer. Before planting in spring next year, fully irrigate. Planting maize after improving soil quality can increase the yield by 153.5% compared with unimproved land, and the effect of increasing yield is obvious.

Embodiment 2

[0028] This experiment was arranged in Fuxing Village, Mingren Sumu, Naiman Banner, Tongliao City, Inner Mongolia. The soil quality was measured as severe desertification before improvement. Bentonite was pressed at 60t / hm before soil preparation in autumn of the previous year 2 Spread evenly on the surface of sandy soil, and at the same time combine 15t / hm 2 The organic fertilizer is spread by the operation of the rotary tiller, so that the bentonite, organic fertilizer and sand are evenly mixed in the plow layer. Before planting in spring next year, fully irrigate. Planting peanuts after improving the soil quality increased the yield by 64.5% compared with the sandy land where organic fertilizer was applied alone.

Embodiment 3

[0030] This experiment was arranged in Fengshou Village, Naiman Banner, Tongliao City, Inner Mongolia. Before improvement, the soil quality was measured as mild desertification. Before the spring land preparation of that year, press the bentonite at 30t / hm 2 Evenly spread on the surface of sandy soil, combined with 15t / hm 2 Application of machine fertilizer and 3t / hm 2 The corn stalks are returned to the field, and the operation of the rotary tiller is used for stirring, so that the bentonite, organic fertilizer, straw and sand are evenly mixed in the plow layer. Before planting, fully irrigate. Planting oats after improving the soil quality increased the yield by 52.5% in the first year and 64% in the second year compared with the control without bentonite, and the effect of increasing yield was obvious.

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PUM

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Abstract

The invention discloses a sandy soil improvement method. The sandy soil improvement method is characterized by comprising the following steps: 1) uniformly scattering and applying bentonite on the surface of sandy soil through a special sowing machine before land preparation in autumn in the previous year or spring in the current year; 2) uniformly mixing the bentonite with the sandy soil in a plough layer through the ploughing action of an agricultural machine, wherein the best way is of combination with full stirring of a rotary tiller; and 3) watering before seed sowing in the current year, wherein the watering is required to realize thorough irrigation. The method has the advantages of no environmental pollution, low cost, fast onset of action and lifetime benefits after one-time application, so that the method is of the real, green and environment-friendly sandy soil improvement method.

Description

technical field [0001] The invention belongs to the field of soil improvers, and in particular relates to a sandy soil improvement method. Background technique [0002] With the continuous growth of population, the development of industry and agriculture, and the acceleration of urbanization, the land degradation in countries around the world is serious, the speed of land desertification is accelerating, the land is becoming increasingly barren, and the quality of land is declining, resulting in a serious decline in land productivity and a continuous decrease in cultivated land. my country is one of the countries most seriously affected by desertification in the world. The large area and wide distribution of desertification have exacerbated the deterioration of the ecological environment, which has seriously affected the development of my country's industry, agriculture and social economy, threatened the survival and development space of the nation, and caused serious economi...

Claims

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Application Information

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IPC IPC(8): A01B79/00C09K17/08C09K101/00
Inventor 郝国成刘景辉戴云仙
Owner 郝国成
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