Multifunctional ecological soil conditioner

A soil conditioner and eco-type technology, applied in soil conditioning materials, organic fertilizers, fertilizer mixtures, etc., can solve the problems of insignificant reduction of heavy metals, no mention of the stabilization ability of heavy metals, and reduction of the absorption of multiple heavy metals, so as to achieve water retention. Good fertilizer retention effect, good ion exchange capacity, and the effect of improving crop quality

Inactive Publication Date: 2017-09-05
HUNAN XISI ECOLOGY TECH
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Problems solved by technology

Chinese patent ZL2015101804052 discloses a composite soil conditioner, which uses humic acid containing more than 45% of organic matter, ferrous sulfate, polyglutamic acid, polyaspartic acid, earthworm powder, shell powder, large Combination of bean cake, amino oligosaccharidin, attapulgite powder, microbial compound fermentation bacteria and other components; it can adjust and balance soil pH value, adjust soil microbial flora while providing nutrients, and improve soil water retention, fertilizer retention and ventilation It can degrade organic pollutants, decompose phosphorus and potassium, antagonize or precipitate heavy metals, and reduce the absorption of multiple metals in crops. It has multiple conditioning effects such as soil detoxification, improving fertility, improving soil physical properties and micro-ecological environment, but it has the effect of reducing heavy metals. not obvious
The soil conditioner does not mention the ability to stabilize heavy metals in the soil

Method used

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preparation example Construction

[0037] The pH of urea-formaldehyde foam is 5.5-7.5, which is rich in nitrogen, phosphorus, sulfur, potassium, zinc and other elements. It can be prepared according to a conventional method, and the specific preparation method includes the following steps:

[0038] (1) formaldehyde and urea are mixed to carry out polycondensation reaction, obtain urea-formaldehyde resin solution;

[0039] (2) sodium butyl naphthalene sulfonate is mixed with phosphoric acid to obtain a foaming liquid;

[0040] (3) Foaming the foaming liquid, the urea-formaldehyde resin solution, and 45% organic fertilizer solution in a foaming machine to obtain a liquid foam;

[0041] (4) solidifying and drying the liquid foam to obtain a foam matrix;

[0042] (5) remove the aldehyde group in the foam matrix, namely obtain the urea-formaldehyde foam containing 45% organic matter.

[0043] Preparation of biochar: Plant wastes were air-dried naturally, crushed to 2-5 cm, and then fully mixed with municipal dome...

Embodiment 1

[0050] Multifunctional compound soil conditioner formula:

[0051] Formula 1: 1.5 parts of urea-formaldehyde foam containing organic matter; 45 parts of biochar; 55 parts of humic acid; 10 parts of wood acetic acid; 55 parts of imidazole-modified tapioca starch;

[0052] Formula 2: 1 part of urea-formaldehyde foam containing organic matter; 55 parts of biochar; 42 parts of humic acid; 2 parts of wood acetic acid; 65 parts of imidazole-modified tapioca starch;

[0053] Formula 3: 0.5 parts of urea-formaldehyde foam containing organic matter; 35 parts of biochar; 65 parts of humic acid; 6 parts of wood acetic acid; 70 parts of imidazole-modified tapioca starch;

[0054] Formula 4: 3 parts of urea-formaldehyde foam containing organic matter; 50 parts of biochar; 35 parts of humic acid; 12 parts of wood acetic acid; 44 parts of imidazole-modified tapioca starch;

[0055] Formula 5: 1 part of urea-formaldehyde foam containing organic matter; 45 parts of biochar; 45 parts of humic ...

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Abstract

The invention discloses a multifunctional ecological soil conditioner. The soil conditioner comprises urea-formaldehyde foam containing organic matters, biochar, humic acid, wood vinegar, imidazole modified tapioca starch and azotobacter. The multifunctional ecological soil conditioner simultaneously has the multiple conditioning effects of stabilizing heavy metals, preserving moisture and fertility, realizing slow release and long-time action of nutrients, increasing the fertilizer utilization ratio, improving the soil structure and micro-ecological environment and the like, and can adapt to conditioning and restoration of various polluted soils.

Description

technical field [0001] The present invention relates to a soil conditioner, in particular to a multi-functional ecological soil conditioner, in particular to a soil conditioner with slow-release nutrients, improved soil structure, improved fertilizer utilization, antagonism or precipitation of heavy metals, and improved soil physical properties. The invention relates to a soil conditioner with multiple conditioning functions such as micro-ecological environment and the like, and belongs to the technical field of soil improvement and environmental control. Background technique [0002] Heavy metal pollution is one of the main types of soil pollution at present. Traditional industries such as mining, smelting, and coal burning can easily cause leakage and diffusion of heavy metals. With the development of industrial and agricultural production, the heavy metals that seriously harm the soil include cadmium, mercury, arsenic, lead, chromium, copper, zinc, nickel, bismuth and ant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C05G3/00C05G3/04C09K101/00C09K109/00C05G3/80
CPCC05D9/00C05G3/00C09K17/40C09K2101/00C09K2109/00C05G3/80C05F11/02C05F11/08
Inventor 张卫赵轶孙梦莹侯晓丽杨广超戴孙强
Owner HUNAN XISI ECOLOGY TECH
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