Smectite-humic acid multifunctional degradable liquid mulch film

A technology of liquid mulch and humic acid, applied in agricultural machinery and tools, agricultural, chemical instruments and methods, etc., can solve the problems of low water resistance, low toughness, and limited source of raw materials, so as to reduce production costs and improve heat absorption performance , the effect of saving manpower and material resources

Active Publication Date: 2012-07-04
甘肃宏鑫农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the multifunctional degradable liquid mulch film mentioned in the CN1277228 patent mainly uses petroleum asphalt or residual oil as raw material, the cost is high, and the source of raw material is limited to a certain extent. In addition, when the material is diluted, it is easily emulsified by hard water, resulting in a decrease in film-forming property; CN1209443 The mentioned spraying invisible mulching film is hydroxychlorobutanol latex resin solution, and a kind of multi-kinetic degradable mulching film mentioned in CN1935878A is a mixed solution of polyvinyl alcohol, acrylic acid and starch. The cost of both is higher and the degrada

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1, get 60 kilograms of weathered coals, 1 kilogram of potassium hydroxide, 3 kilograms of montmorillonites, 25 kilograms of modified starches, 5 kilograms of polyvinyl alcohols, 5 kilograms of potassium silicate powders, 1 kilogram of rare earth fertilizers.

[0028] First mix weathered coal, montmorillonite and potassium hydroxide through a fine grinder to 200 meshes, then heat to about 50°C, add modified starch, polyvinyl alcohol, potassium silicate powder, rare earth micro-fertilizer, mix quickly and evenly, and keep warm for 30 minute. Dilute it with 2 times of water, add 0.1% pesticide or fungicide and 1% herbicide, stir evenly, add it to the spraying equipment, and spray it on the ground to form a film.

Embodiment 2

[0029] Embodiment 2, get 50 kilograms of humic acid, 5 kilograms of potassium hydroxides, 5 kilograms of montmorillonites, 25 kilograms of modified starches, 5 kilograms of polyvinyl alcohols, 5 kilograms of sodium silicate powders, 1 kilogram of rare earth fertilizers.

[0030] Mix and grind humic acid, montmorillonite and potassium hydroxide through a fine grinder to 200 mesh, then heat to about 60°C, add modified starch, polyvinyl alcohol, sodium water glass powder, and rare earth micro-fertilizer, mix quickly and evenly, and keep warm for 50 minute. Dilute it with 2 times of water, add 0.1% pesticide or fungicide and 1% herbicide, stir evenly, add it to the spraying equipment, and spray it on the ground to form a film.

Embodiment 3

[0031] Embodiment 3, get 5 kilograms of potassium humates, 50 kilograms of weathered coals, 5 kilograms of montmorillonites, 20 kilograms of modified starches, 5 kilograms of polyvinyl alcohols, 5 kilograms of potassium silicate powders, 5 kilograms of phenolic resins, 3 kilograms of urea , 1 kg of potassium hydroxide, 1 kg of rare earth fertilizer.

[0032] First prepare potassium hydroxide, weathered coal and potassium humate to make a 50% slurry, and mix the modified humic acid slurry with phenolic resin, modified starch, polyvinyl alcohol, potassium silicate, and rare earth micro-fertilizer at 70°C Mix quickly and keep warm for 100 minutes. Dilute it with 2 times of water, add 0.1% pesticide or fungicide and 1% herbicide, stir evenly, add it to the spraying equipment, and spray it on the ground to form a film.

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PUM

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Abstract

The invention provides a smectite-humic acid multifunctional degradable liquid mulch film which is prepared by the following steps: modifying smectite and humic acid to form high polymers under the actions of a crosslinking agent and a film former; and mixing with various additives, silicon fertilizer, microelements, pesticide and weedicide to obtain the multifunctional degradable black liquid mulch film. The smectite-humic acid multifunctional degradable liquid mulch film comprises the following components in percentage by weight: 30-50% of humic acid, 15-30% of smectite, 1-10% of sodium hydroxide or potassium hydroxide, 2-8% of crosslinking agent, 10-25% of film former, 5-10% of water glass, 1-3% of micro-fertilizer, 0.1-2% of bactericide and 0.1-2% of weedicide. The mulch film solves the problem of pollution caused by the use of the plastic mulch film in agriculture. The liquid mulch film is sprayed by a common agroatomizer onto the ground surface, and forms a film after being dried. The mulch film can hold the temperature and moisture of soil, prevent ground surface evaporation, enhance the sprouting speed of the plant, protect the fertilizer, reduce the nutrient loss and keep soil from packing together. In particular, after the crops are harvested, the product can quickly be degraded in soil, and have the effects of providing the plant nutrients and improving the soil environment.

Description

1. Technical field [0001] The invention provides a montmorillonite and humic acid multifunctional and degradable liquid mulch 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 use of mulch can meet the needs of crops for heat preservation, moisture protection, frost protection, and fertility maintenance. However, after years of use, plastic mulch is difficult to decompose in the natural environment. Broken, difficult to recycle, scattered in the natural environment, causing serious white pollution to the soil and the environment. Therefore, in agricultural production, there is an urgent need for a plastic mulch substitute that not only has the effect of plastic mulch heat preservation, but also reduces the evaporation of soil moisture and does not produce ecological pollution. Degradable mulc...

Claims

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Application Information

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IPC IPC(8): C09K17/52C09K17/40C09K101/00
Inventor 杨华连
Owner 甘肃宏鑫农业科技有限公司
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