Remediation method of alkaline soil

A restoration method and soil technology, applied in the fields of site preparation methods, soil conditioning materials, chemical instruments and methods, etc., can solve problems such as excessive heavy metals and harmful trace elements, little impact on crop growth and yield, and difficulties in alkaline soil improvement. Achieve the effects of multiple action sites, improvement of soil alkalization, and prevention and control of uploaded fungal diseases

Inactive Publication Date: 2019-01-18
广西百乐德农业投资有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to improve the soil structure of alkaline soil and reduce the alkalinity and pH value of alkaline soil, physical improvement, water conservancy improvement and biological improvement are mainly used, which can only temporarily improve alkaline soil and affect the growth and yield of crops. Not much, and although the current chemical improvement can reduce the pH value of the soil, some of them will cause heavy metals and harmful trace elements in the soil to exceed the standard or iron deficiency in the improved soil, and the crops planted will suffer from iron deficiency. Phenomena that also affect the growth of crops
[0004] In view of the above-mentioned soil improvement problems, it is urgent to invent an efficient alkaline soil restoration method, so as to completely solve the problem of difficult alkaline soil improvement

Method used

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Examples

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Embodiment 1

[0025] A kind of remediation method of alkaline soil provided by the present embodiment comprises the following steps:

[0026] (1) Soil preparation: Excavate the plot, and spray 1000 grams / mu of Trichoderma fungicide on the plot, then cover a layer of plastic film on the upper surface of the plot, and spray water on the plot, spraying water for 1 day Once, spray 500 ml of water per square meter of mulch, and remove the mulch after at least 3 weeks;

[0027] (2) Apply soil loosening agent: apply soil loosening agent in the soil after step (2) treatment, carry out deep plowing to 30cm of soil, fully mix; Wherein, soil loosening agent is made up of the raw material of following weight part: 6 parts of slag, 8 parts of wood chips, 5 parts of rice husk charcoal, 6 parts of decomposed organic matter and 3 parts of perlite; the decomposed organic matter is obtained by the following method: add water accounting for 65% of its weight to wood chips and rice bran in any proportion, stor...

Embodiment 2

[0030] A kind of remediation method of alkaline soil provided by the present embodiment comprises the following steps:

[0031] (1) Soil preparation: Excavate the plot, and spray 1250 grams / mu of Trichoderma fungicide on the plot, then cover the upper surface of the plot with 1 layer of plastic film, and spray water on the plot, spray water 1 day on the 1st Once, spray 550 ml of water per square meter of mulch, and remove the mulch after at least 3 weeks;

[0032] (2) Apply soil loosening agent: apply soil loosening agent in the soil after step (2) treatment, carry out deep plowing 40cm to soil, fully mix; Wherein, soil loosening agent is made up of the raw material of following weight part: 9 parts of slag, 12 parts of sawdust, 7 parts of rice husk charcoal, 9 parts of decomposed organic matter and 6 parts of perlite; the decomposed organic matter is obtained by the following method: add water accounting for 70% of its weight to any proportion of sawdust and rice bran, and st...

Embodiment 3

[0035] A kind of remediation method of alkaline soil provided by the present embodiment comprises the following steps:

[0036] (1) Soil preparation: Excavate the plot, and spray 1500 grams / mu of Trichoderma fungicide on the plot, then cover the upper surface of the plot with 1 layer of plastic film, and spray the plastic film with water, spray water for 1 day Once, spray 600 ml of water per square meter of mulch, and remove the mulch after at least 3 weeks;

[0037] (2) Apply soil loosening agent: apply soil loosening agent in the soil after step (2) treatment, carry out deep plowing to 50cm of soil, fully mix; Wherein, soil loosening agent is made up of the raw material of following weight part: 12 parts of slag, 16 parts of wood chips, 10 parts of rice husk charcoal, 12 parts of decomposed organic matter and 8 parts of perlite; the decomposed organic matter is obtained by the following method: add water accounting for 75% of its weight to wood chips and rice bran in any pro...

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Abstract

The invention provides a remediation method of alkaline soil, and relates to the technical field of soil improvement. The method comprises the steps of (1), soil preparation; (2), soil loosening agentapplication; (3), soil improving fertilizer application. According to the method, the alkaline soil is restored through the steps of soil preparation, soil loosening agent application, soil improvement fertilizer application and the like to reduce soil alkalinity, improve soil characteristics, loosen soil, increase soil fertility to gradually improve soil alkalinization, soil sterilization and fertilizer addition are conducted while the soil alkalinity is reduced, and the method is a remediation method which has the effects of alkaline soil conditioning agent and value improving and synergism.

Description

【Technical field】 [0001] The invention relates to the technical field of soil improvement, in particular to a method for repairing alkaline soil. 【Background technique】 [0002] Alkaline soil refers to the soil with a pH value greater than 7, that is, the concentration of hydroxide ions in the soil solution is greater than the concentration of hydrogen ions. In practice, it refers to soil with a pH value above 7.3. Generally, it includes calcareous soil, saline soil and alkaline soil. The alkaline reaction of soil is OH in the soil solution - When the ion concentration exceeds the H+ ion concentration, it is reflected that the OH- ion concentration in the solution shows the strength of soil alkalinity, or in other words, the greater the pH value, the stronger the alkalinity. Soils with a pH less than 7 are acidic soils, and soils with a pH greater than 7 are alkaline soils. The acidity and alkalinity of soil in our country vary, and the north of the Yangtze River is mostl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02C05G3/04C09K17/40C09K109/00C09K101/00C05G3/80
CPCA01B79/02C05B1/02C09K17/40C09K2101/00C09K2109/00C05G3/80C05D3/00C05D9/00C05F3/00C05F5/002C05F9/04C05F11/00C05F11/02
Inventor 苏民
Owner 广西百乐德农业投资有限公司
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