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Modifier for acidic soil

An acid soil and improver technology, applied in soil conditioning materials, applications, organic fertilizers, etc., can solve problems such as soil improvement cannot be carried out, and achieve the effect of convenient operation and low cost

Inactive Publication Date: 2014-12-24
YUNNAN RUNJIE AGRI SCI & TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Soil improvement cannot be done if the amount of soil loss is not controlled

Method used

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  • Modifier for acidic soil
  • Modifier for acidic soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The following substances are all in weight ratio: 30% of yellow phosphorus slag, 5% of calcium carbonate, 2% of polyvinyl alcohol, 6% of vermiculite, 6% of perlite, and 100% of bentonite.

[0024] Preparation process: use a pulverizer to process the yellow phosphorus slag, bentonite, calcium carbonate and vermiculite in the prescription into fine particles with a particle size not greater than 1cm, then put polyvinyl alcohol in a pre-mixer and mix for 30 minutes to obtain the present invention The soil conditioner.

Embodiment 2

[0026] The following substances are all in weight ratio: 30% of yellow phosphorus slag, 10% of lime nitrogen, 4% of polyvinyl alcohol, 6% of vermiculite, 8% of weathered coal, and 100% of bentonite.

[0027] Preparation process: use a pulverizer to process the yellow phosphorus slag, bentonite, calcium carbonate and vermiculite in the prescription into fine particles with a particle size not greater than 1cm, then put polyvinyl alcohol in a pre-mixer and mix for 30 minutes to obtain the present invention The soil conditioner.

Embodiment 3

[0029] The test site is the acidified and hardened paddy field in Hunan Province. The soil conditioner is the above example 1, and the field is divided into 30m 2 Experiments were carried out in the plots. After the early rice was harvested, it was spread evenly according to the designed application rate per mu, and then the late rice was sown normally by rotary tillage with a machine. The experimental area and the control area were managed in the same way as in the previous planting seasons. Measure the actual effect of soil improvement by means of final yield measurement. The test results are shown in Table 1.

[0030] Table 1. Paddy field test results.

[0031]

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Abstract

The invention relates to a modifier for acidic soil. The modifier comprises the following components in percentage by weight: 10-30% of yellow phosphorus slag, 5-20% of acidic soil modifier, 5-10% of artificially synthesized high-molecular compound, and the balance of mineral substances, wherein the yellow phosphorus slag mainly comprises CaSiO3; the acidic soil modifier refers to lime substances such as calcium carbonate, calcium oxide, lime nitrogen and the like; the artificially synthesized high-molecular compound refers to one or a mixture of more of polyacrylic acid, vinyl acetate maleic acid and polyvinyl alcohol type high-molecular compounds; mineral substances refer to peat, lignite, decomposed coal, vermiculite, bentonite, zeolite, perlite, sepiolite and the like. The modifier can effectively improve the yield reduction phenomenon of crops caused by an acidic hardened land, and has the advantages of being low in cost, fast, and simple to operate and the like.

Description

technical field [0001] The invention belongs to the field of soil improvement and relates to a soil improvement agent for acid hardened fields. Background technique [0002] Soil improvement is the process of taking corresponding physical or chemical measures to improve soil properties, soil fertility, crop production, and the soil environment for human survival in response to adverse soil properties and obstacles. [0003] The soil improvement process is divided into two stages: ① Soil conservation stage, taking engineering or biological measures to control the soil loss within the allowable loss range. If the amount of soil loss is not controlled, soil improvement cannot be carried out. For cultivating the soil, the basic construction of the farmland must be carried out first. ②Soil improvement stage, the purpose is to increase soil organic matter and nutrient content, improve soil properties, and improve soil fertility. Soil improvement measures are mainly planting leg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/06
Inventor 王礼文冷忠国张志伟朱刚陈佛祥吴泽伟
Owner YUNNAN RUNJIE AGRI SCI & TECHCO
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