Method for improving soil acidity and alkalinity and increasing soil trace element content

A technology for improving soil and trace elements, which is applied in the direction of fertilizer mixture, fertilization device, application, etc., can solve the problems that clay soil and raw soil cannot be improved at the same time, and cannot provide various trace elements, so as to improve the degree of fertility and increase soil trace elements The effect of content

Inactive Publication Date: 2017-04-26
CHONGQING JIANJIAPING AGRI TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing soil improvement methods can only improve the pH of the soil, but cannot improve both clay and raw soil at the same time, and also cannot provide a variety of trace elements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A method for improving soil pH and increasing the content of trace elements in soil. The waste fly ash discharged from thermal power plants or coal-fired production workshops and the steel slag discharged in the steelmaking process are dried, pulverized and stirred to make a soil improver. When stirring, put the fly ash particles and steel slag into the soil to be improved after fully stirring, and mix with the soil evenly; when mixing with the improved soil, the depth of the soil is 10cm.

[0017] When drying, reduce the moisture content of fly ash and steel slag to 30%.

[0018] When crushing, the fly ash is crushed to a particle size of 30 mesh.

Embodiment 2

[0020] A method for improving soil pH and increasing the content of trace elements in soil. The soil improving agent is prepared by drying, pulverizing and stirring waste fly ash discharged from thermal power plants or coal-fired production workshops and steel slag discharged in the process of steelmaking. When stirring, put the fly ash particles and steel slag into the soil to be improved after fully stirring, and mix with the soil evenly; when mixing with the improved soil, the depth of soil turning is 15cm.

[0021] When drying, reduce the moisture content of fly ash and steel slag to 15%.

[0022] When crushing, the fly ash is crushed to a particle size of 45 mesh.

Embodiment 3

[0024] A method for improving soil pH and increasing the content of trace elements in soil. The soil improving agent is prepared by drying, pulverizing and stirring waste fly ash discharged from thermal power plants or coal-fired production workshops and steel slag discharged in the process of steelmaking. When stirring, put the fly ash particles and steel slag into the soil to be improved after fully stirring, and mix with the soil evenly; when mixing with the improved soil, the depth of the soil is 20cm.

[0025] When drying, reduce the moisture content of fly ash and steel slag to 20%.

[0026] When crushing, the fly ash is crushed to a particle size of 50 mesh.

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PUM

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Abstract

The invention relates to a method for improving the soil acidity and alkalinity and increasing the soil trace element content. A soil improving agent is prepared by taking waste fly ash discharged by a thermal power plant or coal firing workshop and steel slag discharged in the steel making process as raw materials through drying, smashing and stirring.

Description

technical field [0001] The invention relates to a method for improving soil pH and increasing soil trace element content. Background technique [0002] Industrial waste residues, waste water, waste gas, etc. are usually regarded as having no application value and being discarded under the current conditions, and are also called waste; All have good improvement effects, which can not only increase the fertility of the soil, but also provide essential trace element fertilizers for the growth of crops. [0003] Fly ash is a waste discharged from thermal power plants or coal-fired production workshops. It is a loose powdery solid aggregate, generally slightly alkaline, which can improve the physical and chemical properties of clay, acidic soil and raw soil, and improve soil quality. Low temperature; fly ash can provide silicon, calcium and some trace elements. Adding a certain amount of fly ash to the soil can increase the granulation speed and improve some physical and chemica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/80
Inventor 杨桂珍
Owner CHONGQING JIANJIAPING AGRI TECH DEV CO LTD
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