CN109293995A - A kind of degradable mulch and preparation method thereof - Google Patents
A kind of degradable mulch and preparation method thereof Download PDFInfo
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- CN109293995A CN109293995A CN201810963504.1A CN201810963504A CN109293995A CN 109293995 A CN109293995 A CN 109293995A CN 201810963504 A CN201810963504 A CN 201810963504A CN 109293995 A CN109293995 A CN 109293995A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
- A01G13/0256—Ground coverings
- A01G13/0268—Mats or sheets, e.g. nets or fabrics
- A01G13/0275—Films
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2303/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2303/02—Starch; Degradation products thereof, e.g. dextrin
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2497/00—Characterised by the use of lignin-containing materials
- C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2499/00—Characterised by the use of natural macromolecular compounds or of derivatives thereof not provided for in groups C08J2401/00 - C08J2407/00 or C08J2489/00 - C08J2497/00
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/16—Halogen-containing compounds
- C08K2003/162—Calcium, strontium or barium halides, e.g. calcium, strontium or barium chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/16—Halogen-containing compounds
- C08K2003/164—Aluminum halide, e.g. aluminium chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/28—Nitrogen-containing compounds
- C08K2003/287—Calcium, strontium or barium nitrates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
- C08K2003/3081—Aluminum sulfate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/28—Nitrogen-containing compounds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/28—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture specially adapted for farming
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Abstract
The invention discloses a kind of degradable mulch and preparation method thereof, its formula is made of following raw material, by weight are as follows: 18-36 parts of crop material, 40-55 parts of amylan, 18-36 parts of banana skin, 9-18 parts of corncob cellulose, 5-15 parts of modifying agent, 20-35 parts of plastic film agent, 0.1-10 parts of adjuvant.Preparation method includes: the first step, crushing of being exposed to the sun；Second step, tonality are decomposed；Third step stirs mixed glue；4th step, mixing curtain coating.Degradable mulch provided by the invention, primary raw material materials facilitate at low cost, the mulch of preparation is high-quality, long shelf-life and toughness are strong, alternative current common Plastic mulch, early period provides the control environment of heat preservation water conservation etc. to crop, microelement needed for providing a variety of nutrients and tobacco growth to soil after later stage degradation, for moistening improvement soil.
Description
Technical field
The present invention relates to agricultural land technology field of membrane materials, more particularly to a kind of degradable mulch and its preparation side
Method.
Background technique
Agriculture field is affected by a natural, and most of flue-cured tobaccos are all easy by a degree of in the growth of seedling stage
Damage, to reduce survival rate, influences tobacco leaf crop and quality.In order to provide a preferable ring to the growth of flue-cured tobacco
Border, to improve crop yield and quality, usual people will use the mulch of the high-efficiency insulated moisturizing of energy.But the material of traditional mulch
Plastic is mostly used greatly, residual mulching film is caused to be difficult to degrade, residual periodicity is longer in the soil, not only will cause soil hardening disease
State can cause the flue-cured tobacco underproduction instead, cause " white pollution ".
Summary of the invention
In order to solve the problems, such as to mention in background technique, white pollution is reduced, environmentally friendly and sustainable development is established
Type agricultural Model, to provide a kind of degradable mulch and preparation method thereof, which compares traditional mulch, and toughness is more
By force, it can degrade after the shelf-life is longer and use and a variety of nutriments and tobacco growth institute can be provided to soil after degradation
The microelement needed.
The invention discloses a kind of degradable mulch and preparation method thereof, technical solution is to be accomplished by the following way
:
A kind of degradable mulch, formula are made of following raw material, by weight are as follows: 18-36 parts of crop material, starch
40-55 parts of glue, 18-36 parts of banana skin, 9-18 parts of corncob cellulose, 5-15 parts of modifying agent, 20-35 parts of plastic film agent, adjuvant 0.1-
10 parts.
As a further solution of the present invention, formula is made of following raw material, by weight are as follows: crop material 24-
32 parts, 46-52 parts of amylan, 24-28 parts of banana skin, 12-16 parts of corncob cellulose, 8-12 parts of modifying agent, 28-32 parts of plastic film agent,
0.2-6 parts of adjuvant.
As the further scheme of the present invention, formula is made of following raw material, by weight are as follows: crop material 28
Part, 49 parts of amylan, 25 parts of banana skin, 14 parts of corncob cellulose, 10 parts of modifying agent, 25 parts of plastic film agent, 4 parts of adjuvant.
Preferably, the crop material in wheat stalk, corn stover, rice straw, rape stalk one
The mixture of kind or more than one substances.
Preferably, the starch source of the amylan is in one of corn, potato, pueraria lobata, wheat or one kind
The mixture of the above substance.
Preferably, two kinds in acetic acid, formic acid, butyric acid, indole-3-acetic acid, hydrochloric acid, phosphoric acid of the modifying agent
Or the mixture of two or more substances.
Preferably, the plastic film agent is selected from latex, calcium sulfate, aluminum sulfate, calcium chloride, aluminium chloride, calcium nitrate, nitric acid
The mixture of two or more substance in aluminium, wherein latex is necessary for one of mixture.
A kind of preparation method according to above-mentioned degradable mulch, the preparation method comprises the following steps:
The first step, crushing of being exposed to the sun: the crop material of the formula ratio and corn ear being dissipated and are exposed to the sun 3-7 days under the sun,
It is relayed in pulverizer again and crushed 120-160 mesh, it is small by 16-24 is impregnated in the container of the merging of smashed mixture plus water
When, obtain the first product；
Second step, tonality are decomposed: modifying agent being added into the first product, adjusts pH to 4.8-6.2, adds cellulose point
Enzyme is solved, control vessel temp makes it remain 29-34 degrees Celsius, after decomposing 48-72 hours, at cellulose decomposition enzyme-deactivating
Reason, the inactivation treatment use high-temperature inactivation method, obtain the second product；
Third step stirs mixed glue: the banana skin of formula ratio being put into blender, after stirring 20-30 minutes, adds and matches
The amylan just measured obtains third product after continuing stirring 15-25 minutes；
4th step, mixing curtain coating: the second product and third product are mixed, and are evaporated water using heating heating,
It weighs after sterilization, adds the sterile water of 6.5 times of numerical value of weighing later, and plastic film agent and the adjuvant of formula ratio is added, stirring
It mixes in machine and stirs evenly, be finally transferred to curtain coating production line film forming.
Further, the amylan is mixed with by the water of starch and 5-6 times of starch quality；The adjuvant packet
Include reducing sugar and crop ash content；The curtain coating production line is that three-layer co-extruded cast film line or five-layer co-squeezing casting films produce
Line.
Compared with traditional mulch, the present invention has following substantive features and marked improvement:
1) degradable mulch of the invention, the main components raw material such as starch, cellulose of selection are drawn materials simple and common,
It is easy to get and cost is relatively low, meet waste utilization principle and Agricultural Sustainable Development thought.
2) by test, the ground film toughness of this technical solution production is stronger, is not easily broken；And in mulch manufacturing process,
Since multipass various ways carry out disinfection sterilizing to mixing, to guarantee that mulch has the longer shelf-life, for storage or
Transport provides to be ensured for a long time, while also having ensured the quality of mulch.
3) degradable mulch provided by the invention can gradually substitute current conventional plastic class mulch, can in the ground certainly after use
Row degradation does not need to waste additional manpower recycling, thus saves cost recovery, which provides heat preservation water conservation to flue-cured tobacco
Equal environment can provide a variety of nutrients to soil after degradation, moisten improvement soil.
Specific embodiment
The following further describes the technical solution of the present invention combined with specific embodiments below.
Embodiment one
A kind of degradable mulch, formula are made of following raw material, by weight are as follows: 32 parts of crop material, amylan
42 parts, 34 parts of banana skin, 10 parts of corncob cellulose, 6 parts of modifying agent, 21 parts of plastic film agent, 0.5 part of adjuvant.
In the present embodiment, the crop material selects wheat stalk, corn stover mixture；The starch of the amylan comes
Derived from corn, potato mixture；The modifying agent selects acetic acid, butyric acid, indole-3-acetic acid mixture；The plastic film agent choosing
With latex, calcium sulfate, aluminum sulfate mixture.
A kind of preparation method according to above-mentioned degradable mulch, the preparation method comprises the following steps:
The first step, crushing of being exposed to the sun: the crop material of the formula ratio and corn ear bulk storage are exposed to the sun 4 days under the sun, then
It relays and crushed 150 mesh in pulverizer, will impregnate 16-24 hours, obtain in the container of the merging of smashed mixture plus water
First product；
Second step, tonality are decomposed: modifying agent being added into the first product, adjusts pH to 6.0, adds cellulose decomposition
Enzyme, control vessel temp makes it remain 29-34 degrees Celsius, after decomposing 48-72 hours, by cellulolytic enzyme inactivation treatment,
The inactivation treatment uses high-temperature inactivation method, obtains the second product；
Third step stirs mixed glue: the banana skin of formula ratio being put into blender, after stirring 20-30 minutes, adds and matches
The amylan just measured, the amylan are mixed with by the water of starch and 5 times of starch qualities, continue stirring 15-25 minutes
Afterwards, third product is obtained；
4th step, mixing curtain coating: the second product and third product are mixed, using one degree Celsius of heating per minute
Water is evaporated by heating, is weighed after sterilization, adds the sterile water of 6.5 times of numerical value of weighing later, and the plastic film of formula ratio is added
Agent and adjuvant, the adjuvant include reducing sugar and crop ash content, and the reducing sugar is selected from glucose, fructose, malt
Sugar, the crop ash content come from the calcined residual ash of crop cover etc. in field, stir evenly in blender, be finally transferred to
Three-layer co-extruded curtain coating production line obtains degradable mulch.
Embodiment two
A kind of degradable mulch, formula are made of following raw material, by weight are as follows: 24 parts of crop material, amylan
47 parts, 22 parts of banana skin, 12 parts of corncob cellulose, 8 parts of modifying agent, 32 parts of plastic film agent, 2 parts of adjuvant.
In the present embodiment, the crop material selects rice straw；The starch source of the amylan is in pueraria lobata, potato
Mixture；The modifying agent is selected from acetic acid, indole-3-acetic acid, phosphate mixture；The plastic film agent is selected from latex, calcium chloride, chlorine
Change aluminium mixture.
A kind of preparation method according to above-mentioned degradable mulch, the preparation method comprises the following steps:
The first step, crushing of being exposed to the sun: the crop material of the formula ratio and corn ear bulk storage are exposed to the sun 5 days under the sun, then
It relays and crushed 150 mesh in pulverizer, will impregnate 16-24 hours, obtain in the container of the merging of smashed mixture plus water
First product；
Second step, tonality are decomposed: modifying agent being added into the first product, adjusts pH to 5.4, adds cellulose decomposition
Enzyme, control vessel temp makes it remain 29-34 degrees Celsius, after decomposing 48-72 hours, by cellulolytic enzyme inactivation treatment,
The inactivation treatment uses high-temperature inactivation method, obtains the second product；
Third step stirs mixed glue: the banana skin of formula ratio being put into blender, after stirring 20-30 minutes, adds and matches
The amylan just measured, the amylan are mixed with by the water of starch and 6 times of starch qualities, continue stirring 15-25 minutes
Afterwards, third product is obtained；
4th step, mixing curtain coating: the second product and third product are mixed, using one degree Celsius of heating per minute
Water is evaporated by heating, is weighed after sterilization, adds the sterile water of 6.5 times of numerical value of weighing later, and the plastic film of formula ratio is added
Agent and adjuvant, the adjuvant include reducing sugar and crop ash content, and the reducing sugar is selected from glucose, fructose, malt
Sugar, the crop ash content come from the calcined residual ash of crop cover etc. in field, stir evenly in blender, be finally transferred to
Five-layer co-squeezing curtain coating production line obtains degradable mulch.
Embodiment three
A kind of degradable mulch, formula are made of following raw material, by weight are as follows: 28 parts of crop material, amylan
49 parts, 25 parts of banana skin, 14 parts of corncob cellulose, 10 parts of modifying agent, 25 parts of plastic film agent, 4 parts of adjuvant.
In the present embodiment, the crop material selects wheat stalk, rape stalk mixture；The starch of the amylan comes
Derived from pueraria lobata, wheat mixture；The modifying agent is selected from indole-3-acetic acid, hydrochloric acid, phosphate mixture；The plastic film agent is selected from
Latex, calcium nitrate, nitric acid aluminium mixture.
A kind of preparation method according to above-mentioned degradable mulch, the preparation method comprises the following steps:
The first step, crushing of being exposed to the sun: the crop material of the formula ratio and corn ear bulk storage are exposed to the sun 6 days under the sun, then
It relays and crushed 150 mesh in pulverizer, will impregnate 16-24 hours, obtain in the container of the merging of smashed mixture plus water
First product；
Second step, tonality are decomposed: modifying agent being added into the first product, adjusts pH to 5.0, adds cellulose decomposition
Enzyme, control vessel temp makes it remain 29-34 degrees Celsius, after decomposing 48-72 hours, by cellulolytic enzyme inactivation treatment,
The inactivation treatment uses high-temperature inactivation method, obtains the second product；
Third step stirs mixed glue: the banana skin of formula ratio being put into blender, after stirring 20-30 minutes, adds and matches
The amylan just measured, the amylan are mixed with by the water of starch and 5.5 times of starch qualities, continue to stir 15-25 points
Zhong Hou obtains third product；
4th step, mixing curtain coating: the second product and third product are mixed, using one degree Celsius of heating per minute
Water is evaporated by heating, is weighed after sterilization, adds the sterile water of 6.5 times of numerical value of weighing later, and the plastic film of formula ratio is added
Agent and adjuvant, the adjuvant include reducing sugar and crop ash content, and the reducing sugar is selected from glucose, fructose, malt
Sugar, the crop ash content come from the calcined residual ash of stubble etc. in wheat field, stir evenly in blender, be finally transferred to five
Layer coextrusion casting production line obtains degradable mulch.
In all embodiments, degradable mulch provided by the invention, the main components such as starch, the cellulose of selection are former
Material draws materials simple and common, is easy to get and cost is relatively low, meet waste utilization principle and Agricultural Sustainable Development thought.By
In using new ingredient and new process, by test, the ground film toughness of this technical solution production is stronger, is not easily broken；And in mulch
In manufacturing process, since multipass various ways carry out disinfection sterilizing to mixing, to guarantee that mulch has longer guarantee the quality
Phase ensures for a long time to store or transporting to provide, while also having ensured the quality of mulch.Degradable mulch provided by the invention
Current conventional plastic class mulch can be gradually substituted, is usually that can voluntarily degrade in the ground for 40 to 90 days after use, does not need to waste
Additional manpower recycling, thus cost recovery is saved, the environment such as heat preservation water conservation are provided to flue-cured tobacco the mulch early period, can give after degradation
Soil provides a variety of nutrients, moistens improvement soil.
The foregoing is merely the schematical some embodiments of the present invention, the range being not intended to limit the invention.Appoint
What those skilled in the art, under the premise of not departing from design and the principle of the present invention made by equivalent variations, modification and knot
It closes, should belong to the scope of protection of the invention.
Claims (9)
1. a kind of degradable mulch, which is characterized in that its formula is made of following raw material, by weight are as follows: crop material 18-
36 parts, it is 40-55 parts of amylan, 18-36 parts of banana skin, 9-18 parts of corncob cellulose, 5-15 parts of modifying agent, 20-35 parts of plastic film agent, auxiliary
0.1-10 parts of auxiliary agent.
2. degradable mulch according to claim 1, which is characterized in that its formula is made of following raw material, by weight
It is calculated as: 24-32 parts of crop material, 46-52 parts of amylan, 24-28 parts of banana skin, 12-16 parts of corncob cellulose, modifying agent 8-12
Part, 28-32 parts of plastic film agent, 0.2-6 parts of adjuvant.
3. degradable mulch according to claim 2, which is characterized in that its formula is made of following raw material, by weight
It is calculated as: 28 parts of crop material, 49 parts of amylan, 25 parts of banana skin, 14 parts of corncob cellulose, 10 parts of modifying agent, 25 parts of plastic film agent, auxiliary
4 parts of auxiliary agent.
4. degradable mulch according to claim 1-3, which is characterized in that the crop material is selected from Wheat Straw
The mixture of one of stalk, corn stover, rice straw, rape stalk or more than one substances.
5. degradable mulch according to claim 1-3, which is characterized in that the starch source of the amylan in
The mixture of one of corn, potato, pueraria lobata, wheat or more than one substances.
6. degradable mulch according to claim 1-3, which is characterized in that the modifying agent is selected from acetic acid, first
Acid, butyric acid, indole-3-acetic acid, hydrochloric acid, two or more substance in phosphoric acid mixture.
7. degradable mulch according to claim 1-3, which is characterized in that the plastic film agent is selected from latex, sulphur
Sour calcium, aluminum sulfate, calcium chloride, aluminium chloride, calcium nitrate, two or more substance in aluminum nitrate mixture, wherein cream
Glue is necessary for one of mixture.
8. a kind of preparation method of degradable mulch according to claim 1-3, which is characterized in that the preparation
Method the following steps are included:
The first step, crushing of being exposed to the sun: the crop material of the formula ratio and corn ear are dissipated and are exposed to the sun 3-7 days under the sun, then is turned
It is put into pulverizer and crushed 120-160 mesh, will impregnate 16-24 hours, obtain in the container of the merging of smashed mixture plus water
To the first product；
Second step, tonality are decomposed: modifying agent being added into the first product, adjusts pH to 4.8-6.2, adds cellulose decomposition
Enzyme, control vessel temp makes it remain 29-34 degrees Celsius, after decomposing 48-72 hours, by cellulolytic enzyme inactivation treatment,
The inactivation treatment uses high-temperature inactivation method, obtains the second product；
Third step stirs mixed glue: the banana skin of formula ratio being put into blender, after stirring 20-30 minutes, adds formula ratio
Amylan, continue stirring 15-25 minutes after, obtain third product；
4th step, mixing curtain coating: the second product and third product are mixed, and are evaporated water using heating heating, are sterilized
After weigh, 6.5 times of numerical value of sterile water of weighing is added later, and plastic film agent and the adjuvant of formula ratio is added, in blender
In stir evenly, be finally transferred to curtain coating production line film forming.
9. a kind of preparation method of degradable mulch according to claim 8, which is characterized in that the amylan is by starch
It is mixed with the water of 5-6 times of starch quality；The adjuvant includes reducing sugar and crop ash content；The curtain coating production
Line is three-layer co-extruded cast film line or five-layer co-squeezing cast film line.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111108989A (en) * | 2020-01-06 | 2020-05-08 | 深圳市常治互联网技术开发有限公司 | Fully-degradable agricultural biological intelligent mulching film and preparation method thereof |
| RU2737425C1 (en) * | 2020-02-17 | 2020-11-30 | Елена Евгеньевна Масталыгина | Mulching biodegradable polymer film and method for production thereof (embodiments) |
| CN112239565A (en) * | 2020-10-16 | 2021-01-19 | 南京五瑞生物降解新材料研究院有限公司 | Degradable biological mulching film and production process thereof |
| CN115975391A (en) * | 2022-11-21 | 2023-04-18 | 广东人参果农业科技有限公司 | Mulching film special for ginseng fruits |
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| CN111108989A (en) * | 2020-01-06 | 2020-05-08 | 深圳市常治互联网技术开发有限公司 | Fully-degradable agricultural biological intelligent mulching film and preparation method thereof |
| RU2737425C1 (en) * | 2020-02-17 | 2020-11-30 | Елена Евгеньевна Масталыгина | Mulching biodegradable polymer film and method for production thereof (embodiments) |
| CN112239565A (en) * | 2020-10-16 | 2021-01-19 | 南京五瑞生物降解新材料研究院有限公司 | Degradable biological mulching film and production process thereof |
| CN115975391A (en) * | 2022-11-21 | 2023-04-18 | 广东人参果农业科技有限公司 | Mulching film special for ginseng fruits |
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Application publication date: 20190201 |