CN110338193B - Penoxsulam preparation and preparation method thereof - Google Patents
Penoxsulam preparation and preparation method thereof Download PDFInfo
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- CN110338193B CN110338193B CN201910659847.3A CN201910659847A CN110338193B CN 110338193 B CN110338193 B CN 110338193B CN 201910659847 A CN201910659847 A CN 201910659847A CN 110338193 B CN110338193 B CN 110338193B
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- 239000005592 Penoxsulam Substances 0.000 title claims abstract description 56
- SYJGKVOENHZYMQ-UHFFFAOYSA-N Penoxsulam Chemical compound N1=C2C(OC)=CN=C(OC)N2N=C1NS(=O)(=O)C1=C(OCC(F)F)C=CC=C1C(F)(F)F SYJGKVOENHZYMQ-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title claims abstract description 40
- 241000196324 Embryophyta Species 0.000 claims abstract description 54
- 238000009333 weeding Methods 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 230000012010 growth Effects 0.000 claims abstract description 11
- 239000013543 active substance Substances 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 8
- 239000004480 active ingredient Substances 0.000 claims abstract description 7
- 239000003921 oil Substances 0.000 claims abstract description 7
- 239000002904 solvent Substances 0.000 claims abstract description 7
- 238000009472 formulation Methods 0.000 claims abstract 5
- 241001290610 Abildgaardia Species 0.000 claims abstract 2
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 18
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 18
- 238000010008 shearing Methods 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 18
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 9
- 239000000230 xanthan gum Substances 0.000 claims description 9
- 229920001285 xanthan gum Polymers 0.000 claims description 9
- 229940082509 xanthan gum Drugs 0.000 claims description 9
- 235000010493 xanthan gum Nutrition 0.000 claims description 9
- 229920008347 Cellulose acetate propionate Polymers 0.000 claims description 8
- 229920001732 Lignosulfonate Polymers 0.000 claims description 8
- 239000002285 corn oil Substances 0.000 claims description 7
- 235000005687 corn oil Nutrition 0.000 claims description 7
- CEOHKNSEHQRXIG-UHFFFAOYSA-N dodecyl 3-hydroxypropane-1-sulfonate;magnesium Chemical compound [Mg].CCCCCCCCCCCCOS(=O)(=O)CCCO CEOHKNSEHQRXIG-UHFFFAOYSA-N 0.000 claims description 7
- 239000000944 linseed oil Substances 0.000 claims description 7
- 235000021388 linseed oil Nutrition 0.000 claims description 7
- 241000779819 Syncarpia glomulifera Species 0.000 claims description 6
- 235000019198 oils Nutrition 0.000 claims description 6
- 229940036248 turpentine Drugs 0.000 claims description 6
- 235000019482 Palm oil Nutrition 0.000 claims description 3
- 235000019483 Peanut oil Nutrition 0.000 claims description 3
- 235000019484 Rapeseed oil Nutrition 0.000 claims description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- -1 dioctylcysteine Chemical group 0.000 claims description 3
- 125000001624 naphthyl group Chemical group 0.000 claims description 3
- 239000002540 palm oil Substances 0.000 claims description 3
- 239000000312 peanut oil Substances 0.000 claims description 3
- 229920005646 polycarboxylate Polymers 0.000 claims description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 3
- 235000011152 sodium sulphate Nutrition 0.000 claims description 3
- 239000003549 soybean oil Substances 0.000 claims description 3
- 235000012424 soybean oil Nutrition 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000001739 pinus spp. Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 13
- 230000002401 inhibitory effect Effects 0.000 abstract description 10
- 239000012752 auxiliary agent Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 230000002363 herbicidal effect Effects 0.000 description 7
- 239000001293 FEMA 3089 Substances 0.000 description 6
- 239000004009 herbicide Substances 0.000 description 6
- 150000005693 branched-chain amino acids Chemical class 0.000 description 4
- 150000007942 carboxylates Chemical class 0.000 description 4
- 108010000700 Acetolactate synthase Proteins 0.000 description 3
- LEVWYRKDKASIDU-QWWZWVQMSA-N D-cystine Chemical compound OC(=O)[C@H](N)CSSC[C@@H](N)C(O)=O LEVWYRKDKASIDU-QWWZWVQMSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229960003067 cystine Drugs 0.000 description 3
- 238000011835 investigation Methods 0.000 description 3
- 244000025254 Cannabis sativa Species 0.000 description 2
- 244000058871 Echinochloa crus-galli Species 0.000 description 2
- 241001553700 Euphorbia lathyris Species 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 240000004230 Cyperus compressus Species 0.000 description 1
- 244000075634 Cyperus rotundus Species 0.000 description 1
- 235000016854 Cyperus rotundus Nutrition 0.000 description 1
- 240000000178 Monochoria vaginalis Species 0.000 description 1
- 206010043417 Therapeutic response unexpected Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- SMDHCQAYESWHAE-UHFFFAOYSA-N benfluralin Chemical compound CCCCN(CC)C1=C([N+]([O-])=O)C=C(C(F)(F)F)C=C1[N+]([O-])=O SMDHCQAYESWHAE-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- ZDXPYRJPNDTMRX-UHFFFAOYSA-N glutamine Natural products OC(=O)C(N)CCC(N)=O ZDXPYRJPNDTMRX-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 208000030159 metabolic disease Diseases 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 239000008104 plant cellulose Substances 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/30—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests characterised by the surfactants
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Agronomy & Crop Science (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Toxicology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a penoxsulam preparation and a preparation method thereof, wherein the penoxsulam preparation comprises the following components in parts by weight: 5-20 parts of a weeding active ingredient, 2-5 parts of a dispersing auxiliary agent, 5-8 parts of a slow release agent, 3-5 parts of an emulsifier, 0.1-2 parts of an active agent and 50-80 parts of an oil-based solvent, wherein the weeding active ingredient is penoxsulam. Also disclosed is the use of a penoxsulam formulation for inhibiting the growth of one or more of grassy weeds, sedge weeds, broadleaf weeds. The penoxsulam preparation provided by the invention is applied to gramineous weeds, cyperaceous weeds and broadleaf weeds, and has the advantages of high weeding efficiency, good weeding effect, simple preparation method process and no pollution.
Description
Technical Field
The invention relates to the technical field of pesticide synthesis, and particularly relates to a penoxsulam preparation and a preparation method thereof.
Background
Penoxsulam is a post-emergence herbicide developed by the united states of america, the benefin company of dow agro sciences, which is effective in controlling barnyard grass, moleplant seed, and annual sedge weeds by inhibiting acetolactate synthase (ALS), and is effective against a wide range of broadleaf weeds. Has broad-spectrum weed control activity, the lasting period is as long as 30-60 days, and the weed harm in all seasons can be basically controlled by one-time application.
Penoxsulam is a conductive herbicide, is absorbed by leaves, stems and roots of weeds, and is conducted to meristems through xylem and phloem to inhibit plant growth, so that growing points are dark green. The safety to rice is due to the rapid degradation of the active ingredient in the rice. The weeds stop growing soon after treatment, at which point competition for crop growth by the weeds is reduced to a minimum.
However, penoxsulam is a strong acetolactate synthase inhibitor, the herbicide is slow in appearance, weeds can die gradually after a certain time, and the death speed of the weeds is related to the accumulation amount of branched-chain amino acids in the bodies of the weeds. The selectivity of weeding is high, but the efficiency of weeding needs to be improved.
Disclosure of Invention
The invention aims to realize the technical purpose and provides a penoxsulam preparation with high weeding efficiency and good weeding effect and a preparation method thereof.
The technical purpose of the invention is realized by the following technical scheme: the penoxsulam preparation comprises the following components in parts by weight: 5-20 parts of a weeding active ingredient, 2-5 parts of a dispersing auxiliary agent, 5-8 parts of a slow release agent, 3-5 parts of an emulsifier, 0.1-2 parts of an active agent and 50-80 parts of an oil-based solvent, wherein the weeding active ingredient is penoxsulam.
As a further configuration of the invention: the dispersing auxiliary agent is one or a plurality of compositions of polycarboxylate, lignosulfonate or alkyl naphthyl sodium sulfate.
As a further configuration of the invention: the sustained release agent comprises the following components in parts by weight: 2-4 parts of polyvinyl alcohol, 0.5-1 part of cellulose acetate propionate and 2.5-3 parts of xanthan gum.
As a further configuration of the invention: the emulsifier comprises the following components in parts by weight: 0.5-1.5 parts of fatty alcohol-polyoxyethylene ether, 1-1.5 parts of magnesium lauryl hydroxypropyl sulfonate and 1.5-2 parts of styrylphenol polyoxyethylene ether.
As a further configuration of the invention: the active agent is dioctanoyl cystine.
As a further configuration of the invention: the oil-based solvent is one or more of peanut oil, soybean oil, rapeseed oil, palm oil, linseed oil, turpentine oil and corn oil.
The invention also provides application of the penoxsulam preparation in inhibiting growth of one or more of gramineous weeds, cyperaceous weeds and broadleaf weeds.
The invention also provides a preparation method of the penoxsulam preparation, which comprises the steps of adding the dispersing auxiliary agent, the slow release agent, the emulsifier and the active agent into the oil-based solvent, uniformly mixing and stirring, adding the penoxsulam under stirring by a high-speed shearing machine, and shearing for 20-30 min to obtain the penoxsulam preparation.
The invention has the beneficial effects that:
1. the invention develops a penoxsulam preparation, cellulose acetate propionate in a slow release agent can interact with cellulose of plant conduit cells to form a plant cellulose guide channel, and the transmission rate of penoxsulam in a weed conduit is improved, so that the rate of quickly transmitting the active weeding component penoxsulam to the whole plant body through the conduit acts on weeds, and the weeding efficiency is improved.
2. In the emulsifier in the penoxsulam preparation, the magnesium lauryl hydroxypropyl sulfonate and the penoxsulam change the oxidation-reduction original potential in weed plant cells, so that membrane lipid is peroxidized, and the withering of the weed cells is further accelerated.
3. The dicapryl cystine in the active agent in the penoxsulam preparation can inhibit the synthesis of glutamine, and induces the content of branched chain amino acid in weeds to rise under the action of protein conversion, so that the content of the branched chain amino acid in the plants quickly rises in a short time under the synergistic action of the dicapryl cystine and the penoxsulam, so that the proportion of the amino acid is disordered to cause metabolic disorder, and finally, the branched chain amino acid is quickly withered and withered.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the specific embodiments. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
A penoxsulam preparation and a preparation method thereof are disclosed, and concretely comprise the following embodiments:
example 1
Adding 2-5 parts of polycarboxylate, 2 parts of polyvinyl alcohol, 0.5 part of cellulose acetate propionate carboxylate, 2.5 parts of xanthan gum, 0.5 part of fatty alcohol-polyoxyethylene ether, 1 part of magnesium lauryl hydroxypropyl sulfonate, 1.5 parts of styrylphenol polyoxyethylene ether and 0.1 part of dioctylsarcocystine into 50 parts of peanut oil, mixing and stirring uniformly, adding 5 parts of penoxsulam under stirring of a high-speed shearing machine, and shearing for 20-30 min to obtain the penoxsulam preparation.
The prepared penoxsulam preparation is used for inhibiting the growth of one or more of gramineous weeds, cyperaceous weeds and broadleaf weeds.
Example 2
Adding 5 parts of a mixture of lignosulfonate and alkyl naphthyl sodium sulfate, 4 parts of polyvinyl alcohol, 1 part of cellulose acetate propionate and 3 parts of xanthan gum, 1.5 parts of fatty alcohol-polyoxyethylene ether, 1.5 parts of magnesium lauryl hydroxypropyl sulfonate, 2 parts of styrylphenol polyoxyethylene ether and 2 parts of dioctylscystine into a mixture of 80 parts of soybean oil, rapeseed oil and palm oil, uniformly mixing and stirring, adding 20 parts of penoxsulam under stirring of a high-speed shearing machine, and shearing for 20-30 min to obtain the penoxsulam preparation.
The prepared penoxsulam preparation is used for inhibiting the growth of one or more of gramineous weeds, cyperaceous weeds and broadleaf weeds.
Example 3
Adding 3 parts of lignosulfonate, 3 parts of polyvinyl alcohol, 0.8 part of cellulose acetate propionate carboxylate, 2.8 parts of xanthan gum, 1 part of fatty alcohol-polyoxyethylene ether, 1.3 parts of magnesium lauryl hydroxypropyl sulfonate, 1.8 parts of styrylphenol polyoxyethylene ether and 1 part of dioctylserine into a mixture of 70 parts of linseed oil, turpentine and corn oil, uniformly mixing and stirring, adding 10 parts of penoxsulam under stirring of a high-speed shearing machine, and shearing for 20-30 min to obtain the penoxsulam preparation.
The prepared penoxsulam preparation is used for inhibiting the growth of one or more of gramineous weeds, cyperaceous weeds and broadleaf weeds.
Example 4
Adding 3 parts of lignosulfonate, 3 parts of polyvinyl alcohol, 2.8 parts of xanthan gum, 1 part of fatty alcohol-polyoxyethylene ether, 1.3 parts of magnesium lauryl hydroxypropyl sulfonate, 1.8 parts of styrylphenol polyoxyethylene ether and 1 part of dioctylsarcocystine into a mixture of 70 parts of linseed oil, turpentine and corn oil, uniformly mixing and stirring, adding 10 parts of penoxsulam under stirring of a high-speed shearing machine, and shearing for 20-30 min to obtain the penoxsulam preparation.
The prepared penoxsulam preparation is used for inhibiting the growth of one or more of gramineous weeds, cyperaceous weeds and broadleaf weeds.
Example 5
Adding 3 parts of lignosulfonate, 3 parts of polyvinyl alcohol, 0.8 part of cellulose acetate propionate carboxylate, 2.8 parts of xanthan gum, 1 part of fatty alcohol-polyoxyethylene ether, 1.8 parts of styrylphenol polyoxyethylene ether and 1 part of dioctylsarcocystine into a mixture of 70 parts of linseed oil, turpentine and corn oil, uniformly mixing and stirring, adding 10 parts of penoxsulam under stirring of a high-speed shearing machine, and shearing for 20-30 min to obtain the penoxsulam preparation.
The prepared penoxsulam preparation is used for inhibiting the growth of one or more of gramineous weeds, cyperaceous weeds and broadleaf weeds.
Example 6
Adding 3 parts of lignosulfonate, 3 parts of polyvinyl alcohol, 0.8 part of cellulose acetate propionate carboxylate, 2.8 parts of xanthan gum, 1 part of fatty alcohol-polyoxyethylene ether, 1.3 parts of lauryl hydroxypropyl magnesium sulfonate and 1.8 parts of styrylphenol polyoxyethylene ether into a mixture of 70 parts of linseed oil, turpentine and corn oil, uniformly mixing and stirring, adding 10 parts of penoxsulam under stirring of a high-speed shearing machine, and shearing for 20-30 min to obtain the penoxsulam preparation.
The prepared penoxsulam preparation is used for inhibiting the growth of one or more of gramineous weeds, cyperaceous weeds and broadleaf weeds.
Comparative example
Adding 3 parts of lignosulfonate, 3 parts of polyvinyl alcohol, 2.8 parts of xanthan gum, 1 part of fatty alcohol-polyoxyethylene ether and 1.8 parts of styrylphenol polyoxyethylene ether into a mixture of 70 parts of linseed oil, turpentine and corn oil, uniformly mixing and stirring, adding 10 parts of penoxsulam under stirring by a high-speed shearing machine, and shearing for 20-30 min to obtain the penoxsulam preparation.
The prepared penoxsulam preparation is used for inhibiting the growth of one or more of gramineous weeds, cyperaceous weeds and broadleaf weeds.
Detection method
The test is carried out according to the method specified in GB/T17980.40-2000 'pesticide field efficacy test criterion (I) herbicide control paddy field weed'. Cell area 30m2Random block permutation. Spraying stem leaves in the 2-3 leaf period of the weeds, wherein the spraying liquid amount is 450L/hm2. Draining water before application, and rehydrating 2 days after application. The control was performed in clear water for 4 replicates. Weed damage symptoms were recorded in detail after application.
Investigation of weed control Effect 1 time 10 days after the control Effect investigation, diagonally sampling and investigation of 4 points in each plot, each point is 0.25m2Recording the number of weed plants, measuring the fresh weight 40d after the application of the herbicide, and counting the weeding effect. The prevention effect calculation method comprises the following steps: the control effect is [ (CK-PT)/CK]X 100% (1) wherein: PT represents the number of remaining grass (or fresh weight) in the treated area, and CK represents the number of live grass (or fresh weight) in the blank control area.
The test results for the weed control effect of the test samples prepared in each of examples 1 to 6 of the present invention and the comparative example are as follows:
TABLE 1 herbicidal efficacy of sample 10d
The experimental results in table 1 show that, in examples 1 to 4, example 2 is good in effect, but example 3 is a low-cost and good-effect example, so that the best implementation mode is provided, compared with the comparative example, examples 1 to 3 are obviously superior in impurity removal effect on barnyard grass, moleplant seed, cyperus rotundus and monochoria vaginalis, the weeding effect is good within a short time of 10 days, the weeding effect is obviously superior to that of the herbicide on the market, and the market popularization prospect is good.
Claims (5)
1. The penoxsulam preparation is characterized by comprising the following components in parts by weight: 5-20 parts of a weeding active ingredient, 2-5 parts of a dispersing assistant, 5-8 parts of a slow release agent, 3-5 parts of an emulsifier, 0.1-2 parts of an active agent and 50-80 parts of an oil-based solvent, wherein the weeding active ingredient is penoxsulam, the dispersing assistant is one or more of polycarboxylate, lignosulfonate and alkyl naphthyl sodium sulfate, and the slow release agent comprises the following components in parts by weight: 2-4 parts of polyvinyl alcohol, 0.5-1 part of cellulose acetate propionate and 2.5-3 parts of xanthan gum, wherein the emulsifier comprises the following components in parts by weight: 0.5-1.5 parts of fatty alcohol-polyoxyethylene ether, 1-1.5 parts of magnesium lauryl hydroxypropyl sulfonate and 1.5-2 parts of styrylphenol polyoxyethylene ether.
2. A penoxsulam formulation according to claim 1, wherein the active agent is dioctylcysteine.
3. A penoxsulam formulation according to claim 1, wherein the oil-based solvent is one or more of peanut oil, soybean oil, rapeseed oil, palm oil, linseed oil, turpentine, corn oil.
4. A penoxsulam formulation according to claim 1, wherein the penoxsulam formulation is used to inhibit the growth of one or more of grassy weeds, sedge weeds, broadleaf weeds.
5. A process for preparing a penoxsulam preparation according to claim 1, which comprises adding a dispersing aid, a slow-release agent, an emulsifier and an active agent into an oil-based solvent, mixing and stirring uniformly, adding penoxsulam under stirring by a high-speed shearing machine, and shearing for 20-30 min to obtain the penoxsulam preparation.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRPI0710434A2 (en) * | 2006-05-10 | 2011-08-09 | Du Pont | compositions and method |
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