Biodegradable liquid agricultural film

A liquid agricultural film and biological technology, applied in the direction of plant protection cover, etc., can solve the problems of limited source of raw materials, not easy to decompose, soil compaction, etc., and achieve the effect of improving crop yield, ensuring ventilation and breathing, and prolonging fertilizer efficiency.

Inactive Publication Date: 2008-12-17
王芝代
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems that the existing liquid mulch products contain a large amount of petroleum derivatives, are not easy to decompose

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0005] Embodiment 1: The liquid agricultural film of this embodiment consists of 10-50 parts by weight of plant straw, 0-30 parts of humic acid, 30-70 parts of water, 3-15 parts of film-forming agent, and 0.5 parts of surfactant. parts, fertilizer > 0-20 parts and stabilizer > 0-20 parts. The production method of the liquid agricultural film in this embodiment is as follows: 1. Add the plant straw into the sodium hydroxide solution with a content of 5%, and boil it for 35-55 minutes at 100-110°C and 0.1-0.5Mpa pressure; 2. Add humic acid to the product of step 1, cook at 90-100°C for 20-40 minutes; 3, add film-forming agent to the product of step 2, and cook at 90-100°C for 10-30 minutes ; 4. Cool the product of step 3 to 75-85°C, add surfactant and stabilizer, then stir for 10-20 minutes; 5. Add fertilizer to the product of step 4 and continue stirring, and cool the liquid to 30-35°C Stop stirring and store at room temperature.

specific Embodiment approach 2

[0006] Embodiment 2: The liquid agricultural film of this embodiment consists of 11-49 parts of plant straw, 0.01-29 parts of humic acid, 31-69 parts of water, 4-14 parts of film-forming agent, and 0.6-0.9 parts of surfactant by weight. 0.5-19 parts of fertilizer and 0.2-19 parts of stabilizer.

specific Embodiment approach 3

[0007] Specific embodiment three: The liquid agricultural film of this embodiment consists of 12-48 parts of plant straw, 0.1-28 parts of humic acid, 35-65 parts of water, 5-12 parts of film-forming agent, and 0.7-0.8 parts of surfactant by weight. 2-18 parts of fertilizer and 1-18 parts of stabilizer.

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Abstract

The invention discloses a biodegradable liquid agricultural film, and relates to a liquid ground film. The invention aims at solving the problems that the current liquid ground film contains a great amount of petrol derivatives, is not easy to be degraded, can harden soil and generate toxicity after a long term application, and that the raw material resource is limited and the cost is comparatively high. The liquid agricultural film of the invention is made from 10 portions to 50 portions of plant straw, more than 0 portion to 30 portions of humic acid, 30 portions to 70 portions of water, 3 portions to 15 portions of film-forming agent, 0.5 portion to 1 portion of surfactant, more than 0 portion to 20 portions of fertilizer and more than 0 portion to 20 portions of stabilizer by weight. The liquid agricultural film of the invention can be made by the spraying of ordinary sprayers, thus saving labor, time and energy and avoiding the operations of seedling placing and waste film collection. After 2 months to 3 months, the agricultural film starts to be degraded into organic fertilizer of humic acid and the final degradation product is carbon dioxide and water. The agricultural film can be complexed with fertilizers and pesticide to prolong the fertilization effect and drug effect. The ground temperature can be increased by 1 DEG C to 6 DEG C and the crop output can be increased by 6 percent to 50 percent.

Description

technical field [0001] The invention relates to a liquid mulch. Background technique [0002] The widespread application of plastic mulch in the 20th century brought a technological change to traditional agricultural production. However, plastic mulch has a stable plastic molecular structure and is difficult to degrade. If it is discarded in large quantities in the soil, it will affect the quality of the land and affect the absorption of nutrients and water by crops. The harm caused by plastic mulch to soil and environment has attracted great attention from many countries. As early as the 1970s, the Labofina Research Center of the Belgian Petroleum Company and the University of Ghent in Belgium jointly developed an agricultural liquid mulch film. Since the initial liquid mulch product contained a large amount of petroleum derivatives, it was not easy to decompose, and long-term use would cause Soils compact and become toxic, and raw material sources are limited and expensi...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L99/00C08K13/02C08K5/00C08K3/24C08K3/32C08K3/26C08K5/21C08J5/18A01G13/02
Inventor 王芝代
Owner 王芝代
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