Quick-acting and long-acting controllable compound fertilizer and preparation method thereof

A compound fertilizer and long-acting technology, which is applied in the field of quick-acting and long-acting controllable compound fertilizer and its preparation, can solve problems such as pollution and soil degradation, and achieve the effects of protecting the ecological environment, reducing pollution and avoiding leaching and loss.

Inactive Publication Date: 2019-01-04
ANHUI HUIPU BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the slow-release fertilizers currently on the market are coated with chemically synthesized non-degradable polymers. These refractory polymer coatings are easily left in agricultural soils, causing soil degradation and serious damage. pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A quick-acting and long-acting controllable compound fertilizer, comprising a granular fertilizer core and a compound fertilizer slow-release film coated on the surface of the fertilizer core. The raw materials of the compound fertilizer slow-release film include polylactic acid, perlite powder, acrylic acid, The weight ratio of volcanic ash, polylactic acid, perlite powder, acrylic acid and volcanic ash is 7:4.8:1.6:1.2.

[0030] The particle diameter of the fertilizer core particles is 3.6mm, and the thickness of the slow-release film of the compound fertilizer is 0.22mm. The compound fertilizer slow-release film is wrapped on the outside of the fertilizer core. From the inside to the outside, it is the first layer of film, the second layer of film, and the third layer of film. The raw material of the first layer of film close to the fertilizer core is acrylic acid, and the second layer The raw material of the first film is perlite powder, and the raw material of the ...

Embodiment 2

[0035] A quick-acting and long-acting controllable compound fertilizer, comprising a granular fertilizer core and a compound fertilizer slow-release film coated on the surface of the fertilizer core. The raw materials of the compound fertilizer slow-release film include polylactic acid, perlite powder, acrylic acid, The weight ratio of volcanic ash, polylactic acid, perlite powder, acrylic acid and volcanic ash is 6:3.7:1.8:1.4.

[0036] The particle diameter of the fertilizer core particles is 5mm, and the thickness of the slow-release film of the compound fertilizer is 0.28mm. The compound fertilizer slow-release film is wrapped on the outside of the fertilizer core. From the inside to the outside, it is the first layer of film, the second layer of film, and the third layer of film. The raw material of the first layer of film close to the fertilizer core is acrylic acid, and the second layer The raw material of the first film is perlite powder, and the raw material of the th...

Embodiment 3

[0041] A quick-acting and long-acting controllable compound fertilizer, comprising a granular fertilizer core and a compound fertilizer slow-release film coated on the surface of the fertilizer core. The raw materials of the compound fertilizer slow-release film include polylactic acid, perlite powder, acrylic acid, The weight ratio of volcanic ash, polylactic acid, perlite powder, acrylic acid and volcanic ash is 9:4.4:1.2:1.6.

[0042] The particle diameter of the fertilizer core particles is 4.2 mm, and the thickness of the slow-release film of the compound fertilizer is 0.17 mm. The compound fertilizer slow-release film is wrapped on the outside of the fertilizer core. From the inside to the outside, it is the first layer of film, the second layer of film, and the third layer of film. The raw material of the first layer of film close to the fertilizer core is acrylic acid, and the second layer The raw material of the first film is perlite powder, and the raw material of th...

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Abstract

The invention discloses a quick-acting and long-acting controllable compound fertilizer and a preparation method thereof. The compound fertilizer comprises a granular fertilizer core and a slow-release compound fertilizer film coating the surface of the fertilizer core, wherein the slow-release compound fertilizer film comprises the following raw materials: polylactic acid, perlite powder, acrylicacid and volcanic ash. The compound fertilizer provided by the invention takes effect fast, has sustained, long-lasting and stable fertilizer efficiency, and can continuously supply plant nutrients;after application of a large amount of the compound fertilizer at a time, seedlings are not burned, and the fertilization amount and the fertilization times are reduced.

Description

technical field [0001] The invention relates to the field of chemical fertilizer preparation, in particular to a quick-acting and long-acting controllable compound fertilizer and a preparation method thereof. Background technique [0002] According to the statistics of the Food and Agriculture Organization of the United Nations, 55% of the increase in food production in developing countries comes from the role of chemical fertilizers. A large number of statistical data show that the utilization rate of chemical fertilizers in my country's agricultural production is only about 30%, that is to say, nearly 70% of the used chemical fertilizers are lost ineffectively, which directly causes waste of chemical fertilizers on the one hand; on the other hand, a large amount of chemical fertilizers entering water bodies Fertilizers pollute the water body. After entering the water body, the chemical fertilizer first begins to fertilize the water, and then algae and organisms multiply in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05B7/00C05G3/00C05G3/80C05G5/30C05C3/00C05C9/00C05D1/02C05D9/00C05F3/00C05F5/002C05F11/02
Inventor 丁王广
Owner ANHUI HUIPU BIOTECH
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