CN116875118A - Grass-inhibiting liquid mulching film special for green house green beans and preparation method thereof - Google Patents
Grass-inhibiting liquid mulching film special for green house green beans and preparation method thereof Download PDFInfo
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- CN116875118A CN116875118A CN202310857726.6A CN202310857726A CN116875118A CN 116875118 A CN116875118 A CN 116875118A CN 202310857726 A CN202310857726 A CN 202310857726A CN 116875118 A CN116875118 A CN 116875118A
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- 239000007788 liquid Substances 0.000 title claims abstract description 70
- 230000002401 inhibitory effect Effects 0.000 title claims abstract description 36
- 244000025254 Cannabis sativa Species 0.000 title claims abstract description 35
- 244000013123 dwarf bean Species 0.000 title claims abstract description 12
- 235000021331 green beans Nutrition 0.000 title claims abstract description 10
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 43
- 239000004009 herbicide Substances 0.000 claims abstract description 40
- 230000002363 herbicidal effect Effects 0.000 claims abstract description 36
- 244000046052 Phaseolus vulgaris Species 0.000 claims abstract description 21
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000011159 matrix material Substances 0.000 claims abstract description 12
- 241001474374 Blennius Species 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 238000005507 spraying Methods 0.000 claims abstract description 8
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- 239000006184 cosolvent Substances 0.000 claims abstract description 6
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 6
- 235000015097 nutrients Nutrition 0.000 claims abstract description 6
- 239000004094 surface-active agent Substances 0.000 claims abstract description 6
- 239000000654 additive Substances 0.000 claims abstract description 4
- 230000000996 additive effect Effects 0.000 claims abstract description 4
- 238000003973 irrigation Methods 0.000 claims abstract description 4
- 230000002262 irrigation Effects 0.000 claims abstract description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 35
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 235000011187 glycerol Nutrition 0.000 claims description 12
- 239000011259 mixed solution Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 9
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical group C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims description 6
- 102000011632 Caseins Human genes 0.000 claims description 6
- 108010076119 Caseins Proteins 0.000 claims description 6
- 229920001661 Chitosan Polymers 0.000 claims description 6
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical group [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 6
- 229910021538 borax Inorganic materials 0.000 claims description 6
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 6
- 239000004021 humic acid Substances 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 6
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 6
- 229940080237 sodium caseinate Drugs 0.000 claims description 6
- 239000004328 sodium tetraborate Substances 0.000 claims description 6
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 6
- 229920002472 Starch Polymers 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000008107 starch Substances 0.000 claims description 5
- 235000019698 starch Nutrition 0.000 claims description 5
- LDVVTQMJQSCDMK-UHFFFAOYSA-N 1,3-dihydroxypropan-2-yl formate Chemical compound OCC(CO)OC=O LDVVTQMJQSCDMK-UHFFFAOYSA-N 0.000 claims description 4
- 240000007472 Leucaena leucocephala Species 0.000 claims description 4
- 235000010643 Leucaena leucocephala Nutrition 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 231100000053 low toxicity Toxicity 0.000 claims description 4
- YAZSBRQTAHVVGE-UHFFFAOYSA-N 2-aminobenzenesulfonamide Chemical compound NC1=CC=CC=C1S(N)(=O)=O YAZSBRQTAHVVGE-UHFFFAOYSA-N 0.000 claims description 3
- ZPSJGADGUYYRKE-UHFFFAOYSA-N 2H-pyran-2-one Chemical compound O=C1C=CC=CO1 ZPSJGADGUYYRKE-UHFFFAOYSA-N 0.000 claims description 3
- ONIBWKKTOPOVIA-BYPYZUCNSA-N L-Proline Chemical compound OC(=O)[C@@H]1CCCN1 ONIBWKKTOPOVIA-BYPYZUCNSA-N 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- ONIBWKKTOPOVIA-UHFFFAOYSA-N Proline Natural products OC(=O)C1CCCN1 ONIBWKKTOPOVIA-UHFFFAOYSA-N 0.000 claims description 3
- WMSPXQIQBQAWLL-UHFFFAOYSA-N cyclopropanesulfonamide Chemical compound NS(=O)(=O)C1CC1 WMSPXQIQBQAWLL-UHFFFAOYSA-N 0.000 claims description 3
- 238000007865 diluting Methods 0.000 claims description 3
- ROORDVPLFPIABK-UHFFFAOYSA-N diphenyl carbonate Chemical compound C=1C=CC=CC=1OC(=O)OC1=CC=CC=C1 ROORDVPLFPIABK-UHFFFAOYSA-N 0.000 claims description 3
- BGZZWXTVIYUUEY-UHFFFAOYSA-N fomesafen Chemical compound C1=C([N+]([O-])=O)C(C(=O)NS(=O)(=O)C)=CC(OC=2C(=CC(=CC=2)C(F)(F)F)Cl)=C1 BGZZWXTVIYUUEY-UHFFFAOYSA-N 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 235000011837 pasties Nutrition 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000005562 Glyphosate Substances 0.000 claims description 2
- 239000012752 auxiliary agent Substances 0.000 claims description 2
- XDDAORKBJWWYJS-UHFFFAOYSA-N glyphosate Chemical group OC(=O)CNCP(O)(O)=O XDDAORKBJWWYJS-UHFFFAOYSA-N 0.000 claims description 2
- 229940097068 glyphosate Drugs 0.000 claims description 2
- 241000209504 Poaceae Species 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 11
- 238000009333 weeding Methods 0.000 abstract description 11
- 241000196324 Embryophyta Species 0.000 description 8
- 230000006378 damage Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 235000013311 vegetables Nutrition 0.000 description 4
- 229920002678 cellulose Polymers 0.000 description 3
- 239000001913 cellulose Substances 0.000 description 3
- 239000002362 mulch Substances 0.000 description 3
- 238000009331 sowing Methods 0.000 description 3
- 235000010489 acacia gum Nutrition 0.000 description 2
- 239000001785 acacia senegal l. willd gum Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 235000021332 kidney beans Nutrition 0.000 description 2
- 239000000447 pesticide residue Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 231100000674 Phytotoxicity Toxicity 0.000 description 1
- 235000010726 Vigna sinensis Nutrition 0.000 description 1
- 244000042314 Vigna unguiculata Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 239000002154 agricultural waste Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000001965 increasing effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 230000000361 pesticidal effect Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000003223 protective agent Substances 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- A01G13/0262—Mulches, i.e. covering material not-pre-formed in mats or sheets
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D101/00—Coating compositions based on cellulose, modified cellulose, or cellulose derivatives
- C09D101/08—Cellulose derivatives
- C09D101/26—Cellulose ethers
- C09D101/28—Alkyl ethers
- C09D101/286—Alkyl ethers substituted with acid radicals
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- 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
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
-
- 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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Toxicology (AREA)
- Environmental Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Plant Pathology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a grass-inhibiting liquid mulching film special for green house beans and a preparation method thereof, wherein the grass-inhibiting liquid mulching film comprises the following raw materials in parts by weight: 20-30 parts of matrix, 5-10 parts of cosolvent, 10-15 parts of film-forming additive, 5-10 parts of adhesive, 0.01-1 part of cross-linking agent, 0.01-1 part of surfactant, 20-30 parts of nutrient, 1-5 parts of seaweed extract and 0.01-1 part of special herbicide. The using method comprises the following steps: dissolving the prepared grass-inhibiting liquid mulching film in 5 times of water, uniformly stirring, pouring into an agricultural liquid sprayer, and spraying at a position 20cm away from the ground, or spraying by using a drip irrigation belt; the consumption of the grass-inhibiting liquid mulching film per mu is 100kg. The grass-inhibiting liquid mulching film special for the green house green beans and the application method thereof are safe and pollution-free in raw material source, can selectively protect leguminous crops from being damaged by herbicides without affecting the weeding effect, increase the weeding safety, and have good stability and can enable the herbicides to have slow-release effect.
Description
Technical Field
The invention relates to the technical field of agricultural liquid mulching films, in particular to a grass-inhibiting liquid mulching film special for green house green beans and a preparation method thereof.
Background
In the vegetable planting production process, the harm of weeds is not negligible, particularly shed vegetables such as beans need to be erected in the growth process, and the damage of the weeds to the vegetables is not considered in the early stage of planting, so that the yield of the vegetables is reduced. The herbicide plays an important role in preventing and controlling weeds, protecting crop safety and improving crop yield, on one hand, the temperature in the greenhouse is high, the watering condition is good, the humidity is high, the full play of the pesticide effect can be facilitated, and on the other hand, the cost of manpower and material resources is saved by using the herbicide, and meanwhile, the social and economic benefits are improved. However, the problem of phytotoxicity caused by improper use of herbicides can result in losses in agricultural production.
With the development of technology and the progress of age, the liquid mulching film is in the field of vision of people, has the functions of warming and preserving soil moisture, can degrade organic fertilizer, improves crop yield and quality, and reduces environmental pollution. However, the existing liquid mulching film product is mainly researched and improved in heat preservation and water retention effects, and is single in functionality.
Disclosure of Invention
The invention aims to provide the grass-inhibiting liquid mulching film special for the green house green beans and the preparation method thereof, which have the advantages that the sources of raw materials are safe and pollution-free, leguminous crops can be selectively protected from herbicide damage without influencing the weeding effect, the weeding safety is improved, the liquid mulching film has good stability, and the herbicide has a slow-release effect.
The invention provides a grass-inhibiting liquid mulching film special for green house beans, which comprises the following raw materials in parts by weight: 20-30 parts of matrix, 5-10 parts of cosolvent, 10-15 parts of film-forming additive, 5-10 parts of adhesive, 0.01-1 part of cross-linking agent, 0.01-1 part of surfactant, 20-30 parts of nutrient, 1-5 parts of seaweed extract and 0.01-1 part of special herbicide.
Preferably, the matrix is sodium carboxymethyl cellulose, the cosolvent is 95% ethanol, the film-forming auxiliary agent is sodium caseinate and chitosan, the adhesive is acacia, the cross-linking agent is borax, the surfactant is glyphosate and glycerol, and the nutrient is humic acid and seaweed essence.
Preferably, the special herbicide is prepared by the following method: mixing 30-50 parts of one or more of low-toxicity pyrone, furbenone and fomesafen with 2-5 parts of glycerol and 2-5 parts of polyethylene glycol uniformly and diluting with water for 100 times; and adding herbicide safener in equal proportion for ultrasonic dispersion to finally obtain the special herbicide.
Preferably, the herbicide safener is one or more of cyclopropanesulfonamide, proline, aminobenzenesulfonamide and diphenyl carbonate.
The preparation method of the grass-inhibiting liquid mulching film special for the green house green beans comprises the following steps: weighing sodium carboxymethylcellulose, placing in a drying container, adding 95% ethanol, stirring for 10min, stirring to flocculent to obtain matrix slurry, adding 50% water into a reaction kettle with stirring paddles, heating in water bath, stirring at 200r/min, adding small amount of matrix slurry in stirring process, stirring to pasty, and stirring for at least 0.5h.
Preferably, the rest 50% water is added into the reaction kettle, after the temperature in the reaction kettle is raised to 40 ℃, sodium caseinate, chitosan and acacia are added, and the mixture is heated to 60 ℃ and stirred for 2 hours to obtain a mixed solution.
Preferably, borax, monoglyceride, glycerol, soluble starch and glycerol are added into the mixed solution, the mixed solution is heated to 60 ℃, firstly, the mixed solution is rapidly stirred for 5min, the stirring speed is 600r/min, then, the stirring speed is adjusted to 100r/min, the stirring time is 25min, and the mixed solution is naturally cooled to 25 ℃ to obtain the liquid mulching film.
Preferably, humic acid, seaweed essence and special herbicide are added into the obtained liquid mulching film, and stirring is carried out at room temperature, wherein the stirring speed is 100r/min, and the functional liquid mulching film is obtained after stirring until the liquid mulching film is fully dissolved.
Preferably, the special green house green bean herbicide is added into the obtained liquid mulching film, stirred until the green house green bean herbicide is fully dissolved, and finally the grass-inhibiting liquid mulching film is obtained and is placed in a tank in a sealing manner for standby.
The application method of the grass-inhibiting liquid mulching film special for the green house green beans comprises the following steps: dissolving the prepared grass-inhibiting liquid mulching film in 5 times of water, uniformly stirring, pouring into an agricultural liquid sprayer, and spraying at a position 20cm away from the ground, or spraying by using a drip irrigation belt; the consumption of the grass-inhibiting liquid mulching film per mu is 100kg.
Therefore, compared with the prior art, the grass-inhibiting liquid mulching film special for green house beans and the preparation method thereof have the following beneficial effects:
(1) The invention maintains the characteristics of heat preservation, water retention, slow release of waste materials and safe weeding of the liquid mulching film.
(2) The invention adopts cellulose and starch extracted from agricultural wastes as water-retaining matrix, the sources of raw materials are safe and pollution-free, and the cellulose is a water-retaining thickener, and has high water retention rate and high swelling rate, so that the cellulose has excellent water absorption, and further, the liquid mulching film has good stability.
(3) The degradation mechanism of the liquid mulching film in the invention enables the herbicide to have a slow release effect, not only can selectively protect leguminous crops from being damaged by the herbicide without affecting the weeding effect, but also increases the weeding safety.
The technical scheme of the invention is further described in detail through specific embodiments.
Detailed Description
The technical scheme of the invention is further described below by examples.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.
The invention provides a grass-inhibiting liquid mulching film special for green house beans, which comprises the following raw materials: 20-30 parts of sodium carboxymethyl cellulose, 5-10 parts of 95% ethanol as a cosolvent, 10-15 parts of sodium caseinate, chitosan and the like as a film forming additive, 5-10 parts of Arabic gum as an adhesive, 0.01-1 part of borax as a cross-linking agent, 0.01-1 part of monoglyceride, glycerol and the like as a surfactant, 20-30 parts of humic acid as a nutrient, 1-5 parts of seaweed extract and 0.01-1 part of special herbicide.
Specifically, the special herbicide is prepared by the following method: mixing 30-50 parts of one or more of low-toxicity pyrone, furbenone and fomesafen with 2-5 parts of glycerol and 2-5 parts of polyethylene glycol uniformly and diluting with water for 100 times; and adding one or more of herbicide safeners in equal proportion, namely cyclopropanesulfonamide, proline, aminobenzenesulfonamide and diphenyl carbonate, and performing ultrasonic dispersion to finally obtain the special herbicide.
Specifically, the liquid mulching film takes water as a solvent, and 2 parts of soluble starch is added in the raw material proportion.
The preparation method comprises the following steps:
(1) Weighing sodium carboxymethylcellulose, placing in a drying container, adding 95% ethanol, stirring for 10min, stirring to flocculent to obtain matrix slurry, adding 50% water into a reaction kettle with stirring paddles, heating in water bath, stirring at 200r/min, adding small amount of matrix slurry in stirring process, stirring to pasty, and stirring for at least 0.5h.
(2) Adding the rest 50% of water into the reaction kettle, adding sodium caseinate, chitosan, arabic gum and the like after the temperature in the reaction kettle rises to 40 ℃, heating to 60 ℃, and stirring for 2 hours to obtain a mixed solution.
(3) Adding borax, monoglyceride, glycerol, soluble starch and glycerol into the mixed solution, heating to 60 ℃, rapidly stirring for 5min at 600r/min, adjusting the stirring speed to 100r/min, stirring for 25min, and naturally cooling to 25 ℃ to obtain the liquid mulching film.
(4) And adding humic acid, seaweed extract and special herbicide into the obtained liquid mulching film, stirring at room temperature at the stirring speed of 100r/min, and stirring until the liquid mulching film is fully dissolved to obtain the functional liquid mulching film.
(5) And adding the special herbicide into the obtained liquid mulching film, stirring until the special herbicide is fully dissolved, obtaining the final grass-inhibiting liquid mulching film, and sealing and placing the liquid mulching film in a tank for standby.
The application method of the grass-inhibiting liquid mulching film comprises the following steps:
the prepared grass-inhibiting liquid mulching film is dissolved in 5 times of water, uniformly stirred and poured into an agricultural liquid sprayer, and is sprayed at a position 20cm away from the ground or sprayed by using a drip irrigation belt, and the consumption of the grass-inhibiting liquid mulching film per mu is 100kg.
The technical scheme of the invention is further verified by a specific test.
The test was performed in 3 months to 5 months 2023 in green house of temple green house in Qingzao district of Tianjin city. The selected test crops are four leguminous crops of purple kidney beans, cowpeas, kidney beans and white non-old beans, 4 treatment tests are set, namely a blank control group, an example 1, an example 2 and an example 3, wherein the example 1 is a prepared liquid mulching film, the example 2 is a special herbicide, and the example 3 is a liquid mulching film with herbicide function.
The test is to sow in 9 days of 3 months, spray the liquid mulching film of the same concentration in 11 days of 3 months, the leguminous crops in each treatment test are planted and field management measures are the same, and other substances for promoting the growth of crops such as pesticides, fertilizers and the like are not applied in the test period.
After 45 days of sowing the test crops, 5 plants were randomly selected for each treatment test, and plant height, stem thickness and leaf area growth composition indexes were counted respectively, as shown in table 1:
table 1 growth index comparison
As can be seen from table 1, the four bean growth indexes of example 1, example 2 and example 3 are all superior to the blank control group, wherein the bean growth index of example 3 is optimal.
The soil temperature and humidity was monitored for changes within 15 days after sowing of the test crops as shown in table 2:
TABLE 2 test of temperature and humidity changes
As can be seen from table 2, the soil moisture and temperature increasing effect of example 1 was more remarkable than that of the blank control 15 days after spraying the liquid mulch film.
The number of weeds per unit area (40×30) was measured 30 days after sowing of the test crops, and the weeds on the ground were taken for drying, and the dry weight of the biomass on the ground per unit area was estimated, as shown in table 3:
table 3 weed statistics in the test plots
As can be seen from table 3, the herbicidal effect of examples 2 and 3 was significantly better than that of the blank control and example 1.
In addition, in this example, pesticide residue detection was also performed on edible parts of beans, as shown in the results of table 4.
As can be seen from table 4, after spraying the special herbicide and the liquid mulching film with weeding function in example 2 and example 3, pesticide residue detection is carried out on the mature edible parts of the beans, which are lower than the quantitative limit specified in GB 23200.113-2018.
From the comprehensive data of tables 1, 2, 3 and 4, the grass-inhibiting liquid mulch film of the invention has the effects of warming, preserving soil moisture and promoting effect, and although special herbicide is added, the grass-inhibiting liquid mulch film of the invention has low toxicity, contains herbicide protective agent and can avoid crop damage, and has long degradation period and can slowly release the weeding effect of the herbicide.
Therefore, the grass-inhibiting liquid mulching film special for the green house green beans and the preparation method thereof are safe and pollution-free in raw material source, can selectively protect leguminous crops from being damaged by herbicides without affecting the weeding effect, increase the weeding safety, and have good stability and can enable the herbicides to have slow-release effect. .
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting it, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the invention can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the invention.
Claims (10)
1. The grass-inhibiting liquid mulching film special for the green house green beans is characterized by comprising the following raw materials in parts by weight: 20-30 parts of matrix, 5-10 parts of cosolvent, 10-15 parts of film-forming additive, 5-10 parts of adhesive, 0.01-1 part of cross-linking agent, 0.01-1 part of surfactant, 20-30 parts of nutrient, 1-5 parts of seaweed extract and 0.01-1 part of special herbicide.
2. The liquid mulching film special for green house beans according to claim 1, wherein the matrix is sodium carboxymethyl cellulose, the cosolvent is 95% ethanol, the film forming auxiliary agent is sodium caseinate and chitosan, the adhesive is acacia, the cross-linking agent is borax, the surfactant is glyphosate and glycerol, and the nutrient is humic acid and seaweed essence.
3. The liquid mulching film special for inhibiting grasses of green house beans according to claim 1, wherein the special herbicide is prepared by the following method: mixing 30-50 parts of one or more of low-toxicity pyrone, furbenone and fomesafen with 2-5 parts of glycerol and 2-5 parts of polyethylene glycol uniformly and diluting with water for 100 times; and adding herbicide safener in equal proportion for ultrasonic dispersion to finally obtain the special herbicide.
4. The liquid mulching film special for green house beans according to claim 3, wherein the herbicide safener is one or more of cyclopropanesulfonamide, proline, aminobenzenesulfonamide and diphenyl carbonate.
5. The preparation method of the grass-inhibiting liquid mulching film special for the green house green beans is characterized by comprising the following steps of: weighing sodium carboxymethylcellulose, placing in a drying container, adding 95% ethanol, stirring for 10min, stirring to flocculent to obtain matrix slurry, adding 50% water into a reaction kettle with stirring paddles, heating in water bath, stirring at 200r/min, adding small amount of matrix slurry in stirring process, stirring to pasty, and stirring for at least 0.5h.
6. The method for preparing the grass-inhibiting liquid mulching film special for green house beans according to claim 5, wherein the rest 50% of water is added into the reaction kettle, sodium caseinate, chitosan and acacia are added after the temperature in the reaction kettle rises to 40 ℃, and the mixture is heated to 60 ℃ and stirred for 2 hours to obtain a mixed solution.
7. The method for preparing the grass-inhibiting liquid mulching film special for green house beans according to claim 6, wherein borax, monoglyceride, glycerin, soluble starch and glycerol are added into the mixed solution, the mixed solution is heated to 60 ℃, the mixed solution is rapidly stirred for 5min at a stirring speed of 600r/min, the stirring speed is regulated to 100r/min, the stirring time is 25min, and the mixed solution is naturally cooled to 25 ℃ to obtain the liquid mulching film.
8. The method for preparing the grass-inhibiting liquid mulching film special for green house beans, according to claim 7, wherein humic acid, seaweed extract and special herbicide are added into the obtained liquid mulching film, and the mixture is stirred at room temperature at a stirring speed of 100r/min until the mixture is fully dissolved, so that the functional liquid mulching film is obtained.
9. The method for preparing the grass-inhibiting liquid mulching film special for green house beans, which is disclosed in claim 8, is characterized in that the special green house bean herbicide is added into the obtained liquid mulching film, and the grass-inhibiting liquid mulching film is obtained after stirring until the grass-inhibiting liquid mulching film is fully dissolved, and is placed in a tank in a sealing manner for standby.
10. The method for using the grass-inhibiting liquid mulching film special for green house beans according to any one of claims 1 to 9, which is characterized by comprising the following steps: dissolving the prepared grass-inhibiting liquid mulching film in 5 times of water, uniformly stirring, pouring into an agricultural liquid sprayer, and spraying at a position 20cm away from the ground, or spraying by using a drip irrigation belt; the consumption of the grass-inhibiting liquid mulching film per mu is 100kg.
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