Degradable mulching film coated with waterproof layer

A technology for degrading mulch and waterproof layer, which is applied in plant protection, application, horticulture, etc. It can solve problems such as water vapor accumulation, burns of plants touching the mulch, and plant growth defects, so as to improve surface water storage capacity, improve heat preservation and water retention, and maintain effect of nutrients

Inactive Publication Date: 2017-09-05
广东乐将生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For example, after the mulch film is placed, it needs to be recycled, but the recycling is done manually, which makes it difficult to recycle and causes high recycling costs; at the same time, the mulch film that has not been recycled is not easy to degrade. According to current research, it takes about 300 years for the polyethylene mulch film to completely decompose. time, which caused serious white pollution
[0004] In addition, in addition to high labor costs and environmental pollution, there are also many defects in use.
[0005] For example, because the plastic is not breathable, it is easy to cause water vapor to accumulate to form mist, which reduces the light transmittance of the mulch, which in turn affects the growth of plants under the mulch; and because the traditional polyethylene (polyvinyl chloride) mulch does not have gaps, The

Method used

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  • Degradable mulching film coated with waterproof layer
  • Degradable mulching film coated with waterproof layer
  • Degradable mulching film coated with waterproof layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Polypropylene 10g / m 2 , coated with degradable polyurethane layer 3g / m 2 , calcium carbonate 1g / m 2.

[0046] For the cultivation of flue-cured tobacco

[0047] Steps: (1) raising seedlings; (2) transplanting; transplanting into the soil, using a single ridge planting; (3) fertilizing and watering; (4) pest control; (5) topping and wiping; (6) mature picking ;

[0048] Transplanting under the film is adopted, in which, the white shell degradable plastic film is covered on the growth area of ​​the tobacco plant, and the black new degradable plastic film is covered on both sides of the growth area to prevent the growth of weeds.

[0049] The steps of raising seedlings, transplanting, fertilizing and watering, controlling diseases and insect pests, topping and wiping branches, and mature picking are carried out according to the general agricultural work.

[0050] The heat preservation and water retention effects are tested in the following table:

[0051]

[0052]...

Embodiment 2

[0059] Polypropylene 10g / m 2 , coated with flexible polymer cement-based waterproof coating 4g / m 2 , calcium carbonate 3g / m 2 .

[0060] For growing strawberries

[0061] Covering time: after strawberry planting in autumn

[0062] Before mulching, apply some nitrogen, phosphorus, and potassium compound fertilizers, and remove dead branches and leaves. When covering the film, it should be selected in calm weather, and the plastic film should be spread on the strawberry plants in a straight line, so that the film surface is stretched without wrinkling, and the soil around the film is tightly covered. If the furrow surface is too long, it can be pressed horizontally at a certain distance to prevent the film from being blown up by the wind and broken. In cold regions, another layer of straw or wheat orange can be covered to play the role of thermal insulation film.

[0063] Membrane rupture and removal: After the soil thaws in spring, first remove the anti-cold material on t...

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Abstract

The invention provides a degradable mulching film coated with a waterproof layer. The degradable mulching film comprises a non-woven fabric layer and the waterproof layer. The non-woven fabric layer is coated with the waterproof layer. The degradable mulching film coated with the waterproof layer is degradable and is automatically degraded when plants grow out and film removal is needed, and the cost for manual recovery is saved. In addition, a single-layer non-woven fabric structure has larger pores, severe breathability is caused, the surface of the non-woven fabric is coated with the waterproof layer under the situation that the heat insulation and water retention effects and the like are reduced somewhat, whole structure density is increased, and accordingly the heat insulation and water retention properties and the like are improved. The degradable mulching film coated with the waterproof layer can be used for planting of crops, such as corn, strawberries, cotton, peanuts and tobaccos.

Description

technical field [0001] The invention relates to the field of agricultural production, in particular to a degradable plastic film coated with a waterproof layer. Background technique [0002] In the process of planting many crops, especially tobacco plants, in order to obtain a better growth environment, mulch is used, while the traditional mulch is a plastic (polyethylene or polyvinyl chloride) film. Although it can play the role of heat preservation, water retention and fertilizer preservation, but at the same time, it has many negative effects. [0003] For example, after the mulch film is placed, it needs to be recycled, but the recycling is done manually, which makes it difficult to recycle and causes high recycling costs; at the same time, the mulch film that has not been recycled is not easy to degrade. According to current research, it takes about 300 years for the polyethylene mulch film to completely decompose. time, which caused serious white pollution [0004] I...

Claims

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Application Information

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IPC IPC(8): A01G13/02D06N3/00D06N3/04D06N3/10D06N3/14
CPCA01G13/0275D06N3/0011D06N3/0038D06N3/0063D06N3/04D06N3/042D06N3/106D06N3/14D06N2209/123D06N2209/128D06N2209/1607D06N2211/02
Inventor 郭升程马兴寿陈泽鹏冯灼辉
Owner 广东乐将生物科技有限公司
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