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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] In Example 1, 60 kilograms of lignite, 1 kilogram of potassium hydroxide, 3 kilograms of urea, 25 kilograms of modified starch, 5 kilograms of polyvinyl alcohol, 5 kilograms of potassium water glass powder, and 1 kilogram of rare earth nitrate were taken.

[0036] First, lignite and potassium hydroxide are mixed and ground to 400 mesh by a ball mill, and then urea, modified starch, polyvinyl alcohol, potassium water glass powder, and rare earth nitrate are added at 50°C and mixed quickly and uniformly, and the temperature is kept for 30 minutes.

[0037] When using, the powdery humic acid multifunctional degradable black mulching film only needs to be mixed with 2 times hot water and homogenized to form a liquid mulching film, then diluted with 2 times water, add 0.1% pesticide and 1% herbicide, mix well, add spray In the application equipment, spray the film on the ground.

Example Embodiment

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

[0039] First, lignite and potassium hydroxide are mixed and ground to 325 mesh by Raymond mill, then acrylamide, modified corn flour, polyacrylamide, sodium water glass powder, rare earth nitrate, and manganese nitrate are added at 60°C and mixed quickly and uniformly. 50 minutes.

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

Example Embodiment

[0041] In Example 3, 50 kilograms of humic acid, 0.5 kilograms of potassium hydroxide, 10 kilograms, 20 kilograms of modified flour, 5 kilograms of polyacrylamide, 6 kilograms of sodium water glass powder, 1 kilogram of rare earth nitrate, and 0.5 kilogram of manganese nitrate were taken.

[0042] First, lignite and potassium hydroxide are mixed and ground to 325 mesh by Raymond mill, and then urea-formaldehyde resin, modified flour, polyacrylamide, sodium water glass powder, rare earth nitrate, and manganese nitrate are added at 20°C and mixed quickly evenly, and heat preservation is 120°C. minute.

[0043] When using, the powdery humic acid multifunctional degradable black mulching film only needs to add 1.5 times hot water to homogenize it to form a liquid mulching film, then dilute it with 4 times water, add 0.1% pesticide and 1% herbicide, stir evenly, add spray In the application equipment, spray the film on the ground.

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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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