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Composite soil conditioner and application thereof

A soil conditioner, acidic soil technology, applied in the direction of soil conditioning materials, applications, fertilizer mixtures, etc., can solve the problems of restricting wide application, negative impact, high cost, etc., to improve soil structure, prevent soil compaction, and improve soil organic matter The effect of content

Inactive Publication Date: 2016-10-12
HUNAN TAIGU BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, among various soil improvers, the high cost of artificially synthesized polymer compounds and the potential risk of environmental pollution limit its wide application; a single soil improver has incomplete improvement effects or negative effects to varying degrees Waiting for deficiencies

Method used

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  • Composite soil conditioner and application thereof
  • Composite soil conditioner and application thereof

Examples

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Embodiment 1～5

[0033] Limestone powder described in the embodiment is heavy calcium carbonate powder, wherein CaCO 3 The content of the powder is ≥98%, and the particle size is 400-600 mesh.

[0034] The preparation method of the decomposed straw comprises the following steps: (1) crushing the rice straw into small sections of 2 to 3 cm, spreading the material and stacking them; (2) mixing the compost bacterial agent and urea of ​​1% to 2% by weight of the straw in water, pouring (3) add water and stir, and adjust the moisture content of the pile to 50% to 60%; (4) turn the pile once every 3 to 7 days after the temperature of the pile rises.

[0035] The bacterial agent was EM microbial agent purchased from Cangzhou Wangfa Institute of Biotechnology.

[0036] The addition amount of the bacterial agent is 1% to 2% of the mass of the straw.

[0037] Adjust the moisture content of the decomposed straw to 15%, and pass through a 1mm sieve after crushing.

[0038] The particle size of sepiolit...

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Abstract

The invention relates to the technical field of agricultural environment conservation and repair, in particular to a composite soil conditioner. The composition soil conditioner is prepared from, by weight, 30-60 parts of limestone flour, 25-50 parts of decomposed straw, 10-30 parts of sepiolite and 1-10 parts of K2HPO4. The composite soil conditioner comprises four effective ingredients, the pH of soil can be stably kept at a certain level, and particularly, the pH of acid soil can be effectively adjusted; phosphate radical and humic acid in the conditioner can effectively chelate and deposit available cadmium in soil, and pollution brought by cadmium metal to soil and crops is reduced.

Description

technical field [0001] The invention relates to the technical field of agricultural environment conservation and restoration, in particular to a composite soil conditioner. Background technique [0002] Soil acidification is a manifestation of soil degradation. Soil acidification is not only an important reason for the decline of soil fertility, but also an important factor restricting the sustainable development of agricultural production. According to statistics, from the 1980s to the present, my country's soil acidification has become more and more serious, and the acidified land area has expanded to more than 40% of my country's cultivated land area, and often occurs in large areas, especially in southern my country. The soil itself is slightly acidic, and there is more rainfall, which makes the soil acidification more serious. [0003] Soil acidification can cause the activation of heavy metals such as aluminum, manganese, chromium, and cadmium, thereby affecting the gr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C09K109/00C09K101/00
CPCC09K17/40C09K2101/00C09K2109/00
Inventor 谭石勇文亚雄杨梅玉杨丽丽邱尧刘翔
Owner HUNAN TAIGU BIOTECH
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