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Humic acid multifunctional degradable black mulch film

A technology of black mulch and humic acid, which is applied in the direction of plant protection covers, organic fertilizers, fertilizer mixtures, etc., can solve the problems of inconvenient transportation, high transportation costs, and high costs, so as to save manpower and material resources, reduce production costs, and improve heat absorption performance effect

Inactive Publication Date: 2009-07-15
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the CN1277228 patent mentioned that the liquid mulch is mainly made of petroleum asphalt or residual oil, the cost is high, and the source of raw materials is limited to a certain extent. In addition, its promotion is hindered by the misunderstanding of the toxicity of asphalt.
The spraying concealed mulch film mentioned in CN1209443 is a hydroxychlorobutanol latex resin solution, and a kind of multifunctional degradable liquid mulch film mentioned in CN1935878A is a mixed solution of polyvinyl alcohol, acrylic acid and starch. The cost of the two is higher and the degradability is poor. , it is difficult to control the quality and cost of the spray film due to the colorlessness when spraying, and there is no report of putting it into actual use
CN1459471A is the multifunctional degradable black liquid mulch film proposed by the inventor, which is a fully degradable liquid mulch film, which has the functions of heat preservation, moisture conservation, seedling preservation and soil improvement. The application effect is equivalent to that of plastic mulch film, but due to its liquid state , there are problems such as high transportation cost, inconvenient transportation, and the cost needs to be further reduced
Patent CN1195044C mentions a liquid mulch film-forming material and its preparation method, using kelp powder, α-starch, phosphate starch, etc. as raw materials, the source of raw materials is limited and the cost is high, and no application report has been seen so far

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1, get 60 kilograms of lignite, 1 kilogram of potassium hydroxide, 3 kilograms of urea, 25 kilograms of modified starches, 5 kilograms of polyvinyl alcohol, 5 kilograms of potassium silicate powders, 1 kilogram of rare earth nitrates.

[0036] First mix and grind lignite and potassium hydroxide through a ball mill to 400 mesh, then add urea, modified starch, polyvinyl alcohol, potassium silicate powder, and rare earth nitrate at 50°C and quickly mix evenly, and keep warm for 30 minutes.

[0037] When using the powdery humic acid multi-functional degradable black mulch film, just add 2 times hot water and stir well to form a liquid mulch film, then dilute it with 2 times water, add 0.1% pesticide and 1% herbicide, stir well, add spray In the construction equipment, the film is sprayed on the ground.

Embodiment 2

[0038] Example 2, get 56 kg of pulverized coal, 0.5 kg of potassium hydroxide, 6 kg of acrylamide, 20 kg of modified corn flour, 5 kg of polyacrylamide, 6 kg of sodium water glass powder, 1 kg of rare earth nitrate, manganese nitrate 0.5 kg.

[0039] First mix and grind lignite and potassium hydroxide to 325 mesh through Raymond mill, then add acrylamide, modified corn flour, polyacrylamide, sodium silicate powder, rare earth nitrate, manganese nitrate at 60°C and quickly mix evenly, keep warm 50 minutes.

[0040] When using the powdery humic acid multi-functional degradable black mulch film, just add 2 times hot water and stir well to form a liquid mulch film, then dilute it with 3 times water, add 0.1% pesticide and 1% herbicide, stir well, add spray In the construction equipment, the film is sprayed on the ground.

Embodiment 3

[0041] Embodiment 3, get 50 kilograms of humic acid, 0.5 kilogram, 10 kilograms of potassium hydroxide, 20 kilograms of modified flour, 5 kilograms of polyacrylamide, 6 kilograms of sodium silicate powder, 1 kilogram of rare earth nitrate, 0.5 kilogram of manganese nitrate.

[0042] First mix and grind lignite and potassium hydroxide to 325 mesh by Raymond mill, then add urea-formaldehyde resin, modified flour, polyacrylamide, sodium water glass powder, rare earth nitrate, manganese nitrate at 20°C and mix quickly and uniformly, keep warm for 120 minute.

[0043] When using the powdery humic acid multi-functional degradable black mulch film, just add 1.5 times hot water and stir well to form a liquid mulch film, then dilute it with 4 times water, add 0.1% pesticide and 1% herbicide, stir well, add spray In the construction equipment, the film is sprayed on the ground.

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PUM

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Abstract

The invention provides a multifunctional degradable black ground film containing humic acid. A component system of the ground film comprises the humic acid, sodium hydrate or potassium hydroxide, cross linker, film forming agent, water glass, microbiological fertilizer, pesticide, herbicide, etc. The ground film not only has common biological and light degradation functions, and but also can be suitable for different crops through regulating the category and the content of the film forming agent, the pesticide, the herbicide and the microbiological fertilizer according to the growth demand of different crops. The ground film is liquid or powder, wherein the powder ground film is convenient to transport, but becomes liquid when being melted by hot water and stirred during use; and the liquid ground film is used for field spraying and manufacturing films, so as to save labor and time.

Description

1. Technical field [0001] The invention provides a humic acid multifunctional and degradable black plastic film, which belongs to the field of agricultural production application. 2. Background technology [0002] The use of plastic mulch cultivation technology is one of the top ten agricultural technologies well known in this century. The application of plastic film can meet the needs of crop heat preservation, moisture conservation, and fertility to increase income. However, since plastic plastic film is difficult to decompose in the natural environment, it is scattered in the soil and the natural environment, destroying the soil structure and causing white pollution to the soil and the environment. Therefore, degradable mulch has aroused widespread interest. Degradable mulch can be divided into solid mulch and liquid mulch according to its shape. Due to the strength requirements of forming, transportation and laying, solid mulch is thicker than plastic mulch, and its pri...

Claims

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Application Information

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IPC IPC(8): C08L99/00C08J5/18C09K17/52A01G13/02
Inventor 田原宇乔英云盖希坤梁鹏黄伟
Owner SHANDONG UNIV OF SCI & TECH
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