CN112273389A - Herbicide composition containing terbutryn and sulfentrazone - Google Patents
Herbicide composition containing terbutryn and sulfentrazone Download PDFInfo
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- CN112273389A CN112273389A CN202011353796.0A CN202011353796A CN112273389A CN 112273389 A CN112273389 A CN 112273389A CN 202011353796 A CN202011353796 A CN 202011353796A CN 112273389 A CN112273389 A CN 112273389A
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- terbutryn
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- 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
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/66—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms
- A01N43/68—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms with two or three nitrogen atoms directly attached to ring carbon atoms
- A01N43/70—Diamino—1,3,5—triazines with only one oxygen, sulfur or halogen atom or only one cyano, thiocyano (—SCN), cyanato (—OCN) or azido (—N3) group directly attached to a ring carbon atom
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- 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
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/647—Triazoles; Hydrogenated triazoles
- A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
Abstract
The invention belongs to the technical field of pesticide herbicides, and provides a herbicide composition containing terbutryn and sulfentrazone, wherein the weight ratio range of the terbutryn to the sulfentrazone is 1.25:1-40: 1. The herbicide composition provided by the invention can be applied to control weeds such as brome, arthroncus, descurainia sophia and cleavers in garlic, wheat, soybean, peanut and corn fields, and has good synergistic action or addition action. The invention expands the weed control spectrum, enhances the control effect, effectively complements the quick action and the persistence, avoids the rapid occurrence of weed resistance caused by using a single herbicide to prevent and kill off, delays the occurrence of weed drug resistance, reduces the dosage, reduces the use cost and lightens the environmental pollution.
Description
Technical Field
The invention belongs to the technical field of pesticide herbicides, and particularly relates to a herbicide composition containing terbutryn and sulfentrazone.
Background
The garlic has rich nutrient components and also has good dietary therapy and medicinal values. The Bulbus Allii bulb is rich in proteins, oligosaccharides and polysaccharides, and in addition, fat and minerals. 100g of fresh garlic contains 4.4g of protein, 0.2g of fat, 23g of carbohydrate, 0.7g of crude fiber and 1.3g of ash. The garlic also contains abundant sulfur-containing compounds, wherein the allicin has the medical care functions of sterilization, bacteriostasis, cancer resistance, aging resistance and the like. Allicin is therefore also known as a "botanical natural broad spectrum antibiotic". In recent years, garlic has been paid more and more attention. The garlic product also becomes one of the most popular health care foods in the world today.
China is the biggest garlic planting and exporting country in the world, garlic is one of important crop varieties in China, and garlic and products thereof are traditional seasoning food which is liked by people. The garlic has more than 2000 years of cultivation and planting history in China, and the cultivation history is long, the cultivation area is large, and the yield is high. The garlic planting areas are widely distributed in the Jinxiang county, the Lanling county, the Guangxuan county, the Yongnian county, the Qixian county, the northern Suzhou Dafeng city, the Penzhou city, the southern Sichuan province, the Dali autonomous state and the Xinjiang province.
Wheat is one of three grain crops in China, the planting area and the total yield of the wheat are only second to rice, the planting area in China reaches more than 3000 hectares and about 4.5 hundred million acres, which account for 22-30% of the cultivated land area in China, about 20-27% of the sowing area of the grain crops, and the total yield of the wheat is about 1 hundred million tons, which reaches 22% of the total yield of the grain (Wuming Rong, et al, 2013, pesticide). Wheat is a main commodity grain and a strategic reserve grain variety in China, has an important position in grain production, circulation and consumption, and has important significance for national economic development and people life in China.
Soybean is an annual herbaceous plant and the most important legume in the world. Soybeans originate in China, have been cultivated in ancient China, have a planting history of 5000 years, are generally cultivated in China, have output in northeast, north China, Shaan, Chuan and downstream areas of Yangtze river, are cultivated in Yangtze river basin and southwest, and have the best quality in the northeast. Introduced into the united states in 1804; in the middle of the 20 th century, it became an important crop in the southern united states and the midwest. The soybeans cultivated in all countries of the world are directly or indirectly propagated from China. Because of its high nutritive value, it is called "king in beans", "meat in field", "green milk", etc., and is the most advocated food by nutriologists among hundreds of natural foods.
The peanut distribution range and the production layout are relatively centralized in China. The main provinces comprise 14 Yu, Lu, Ji, Guangdong, Liao, Chuan, Wan, Gui, Hui, Gan, Ji, Xiang, Su and Min, the planting area of the provinces accounts for 93.5 percent of the whole country, the total production accounts for 96.0 percent of the whole country, and the province is the main production area of peanuts in China. Wherein the annual planting area of peanuts in 9 provinces in the south exceeds 150 ten thousand acres, and the total planting area accounts for 35.8 percent of the whole country; the total yield accounts for 30.3 percent of the whole country
From the above, it can be seen that the weeds in the fields are major producing countries in the world in the aspect of planting crops such as garlic, wheat, peanuts, soybeans and the like, but have great threat to crop production. According to the survey data of weeds in China, more than 200 types of weeds in wheat fields, soybeans, peanuts and other fields in China are reported, the weed area accounts for more than 30% of the total planting area, and the loss accounts for about 15% of the total crop yield. Therefore, the field weed control is one of the important works for crop planting.
The herbicide is a common measure for field weed control at present, and has important effects on promoting crop yield improvement and saving planting cost. However, the chemical control of the farmland weeds has the problems of weed resistance, population succession and phytotoxicity which are serious day by day due to the long-term and large-area popularization and application of the herbicide, and the high yield and harvest of agricultural products and the safety of afterreap crops are seriously influenced (Wei Yoghai, Hubei agricultural science, 2011.4). The long-term use of a single herbicide for preventing and killing can cause the number of sensitive weeds to be reduced, the number of insensitive or malignant weeds to be increased, the weed community is changed, and the harvest of the crop yield is seriously influenced.
Terbutryn, chinese alias: 2-methylthio-4-ethylamino-6-tert-butylamino-1, 3, 5-triazine. English name: n- (1, 1-dimethylethenyl) -N' -ethyl-6- (methythio) -1,3,5-triazine-2, 4-diamine, molecular formula C10H19N5S, molecular weight 241.3564, CAS registry number 886-50-0. Terbutryn is a white powder. m.p.104-105 deg.C, vapor pressure of 0.128X 10-3Pa (20 deg.C). Is easily dissolved in organic solvents such as isopropanol, xylene, etc., and has a solubility of 58mg/L in water at 20 ℃. Has stable property and no corrosion under normal conditions. Belongs to a low-toxicity weed removing agent. The acute oral LD50 of a rat is 2400-2980 mg/kg, and the acute oral LD50 of a mouse is 5000 mg/kg. The subchronic toxicity test in rats and dogs had no effect. Low toxicity to birds and moderate toxicity to fish. It is a triazine herbicide, belongs to a selective pre-emergence herbicide and a selective post-emergence herbicide, and has a systemic conduction effect. Can be used in crop fields such as winter wheat, barley, sorghum, sunflower, peanut, soybean, pea, potato, etc., and can prevent and kill off perennial ryegrass, rye chemical book grass, chickweed germinated in autumn, chamomile, poppy, alopecurus, crab grass, green bristlegrass, etc. The dosage of the composition is 20-25 g of effective components per 100m2 for winter wheat and barley, and the dosage of the composition is 10g of effective components per 100m2 for corn after germination. Can be used for weeding before and after the bud, and the lasting period in the soil is 3-10 weeks.
Sulfentrazone, the english name Sulfentrazone, the alias N- (2, 4-dichoro-5- (4- (difluoromethyl) -4, 5-dihydo-3-methyl-5-oxo-1H-1, 2,4-triazol-1-yl) phenyl) methanesulfonamide, the product name N- (2,4-Dichloro-5- (4-difluoromethyl-4, 5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl) phenyl) methanesulfonamide, the molecular formula C11H10Cl2F2N4O3S, the molecular weight 387.19, the accession CAS number 122836-35-5. Belongs to a low-toxicity weed removing agent. The original drug rat is administrated with LD50>2855 mg/kg acutely and LC504.14 mg/L acutely, and the drug has slight stimulation to rabbit skin, stimulation to rabbit eyes and low toxicity to fish. Belongs to protoporphyrinogen oxidase inhibitors. By inhibiting protoporphyrinogen oxidase, excessive protoporphyrin IX, which is a photosensitizer and causes active oxygen to be generated in the plant cell, finally causes the cell membrane, the tonoplast membrane and the like to be broken, the intracellular solute to be exuded and dried up and dead. The half-life period of the soil is 110 + 280 days, and the stem and leaf treatment and the soil treatment can be performed. Is suitable for preventing and treating 1-year-old broadleaf weeds, grass weeds, sedges and the like in fields such as corn, sorghum, soybean, peanut and the like, such as morning glory, amaranthus retroflexus, quinoa, stramonium, crab grass, green bristlegrass, siberian grass, and the like.
The development of new herbicides is expensive and has long period, and compared with the development and research of efficient, low-toxicity and low-residue compounding and mixing, the method has the advantages of low investment and short development period. The reasonable compounding or mixing of the chemical herbicide has the advantages of expanding a weed control spectrum, improving the control effect, prolonging the pesticide application period, reducing the dosage, reducing the risk of phytotoxicity, reducing residues, delaying the occurrence and development of drug resistance and drug resistance of weeds and the like, so that the selection of the proper compounding or mixing of the herbicide is one of the most effective and economical methods for solving the problems; however, because the action mechanism between pesticide blending is complex, whether the synergy is influenced by various factors after combination is verified only by depending on experimental results, and the expectation cannot be carried out.
Disclosure of Invention
In order to solve the technical defects, the invention provides a herbicide composition containing terbutryn and sulfentrazone.
The invention is realized by the following technical scheme: the invention provides a herbicide composition containing terbutryn and sulfentrazone, wherein the weight ratio of the terbutryn to the sulfentrazone is 1.25:1-40: 1.
Preferably, the weight ratio of the terbutryn to the sulfentrazone is 2.5:1-10: 1.
More preferably, the weight ratio of the terbutryn to the sulfentrazone is in a range of 3:1-7: 1.
More preferably, the weight ratio of terbutryn to sulfentrazone is 3:1, 5:1 or 7: 1.
Preferably, the weight ratio of the terbutryn to the sulfentrazone is 2.5:1 or 10: 1.
Preferably, the weight ratio of the terbutryn to the sulfentrazone is 1.25:1, 20:1 or 40: 1.
The herbicide composition preparation is an acceptable pesticide formulation such as missible oil, aqueous suspension, oil suspension, wettable powder, granules or water dispersible granules.
The herbicide composition is used for preventing and killing weeds such as brome, arthroncus, descurainia sophia and cleavers in garlic, wheat, soybean, peanut and corn fields.
The invention has the beneficial effects that:
1. the herbicide has broad herbicide controlling spectrum and effective complementation between quick acting property and lasting effect. After the terbutryn and the sulfentrazone are compounded, the weed control spectrum advantages are complementary, the compound herbicide has good effect on broad-leaved weeds in garlic, wheat, soybeans, peanuts and corn fields, and the quick action and the persistence are excellent.
2. The control effect is enhanced. After the terbutryn and the sulfentrazone are compounded, the interaction type is addition action, and the compound bactericide has synergistic action, enhances the control effect and has better effect than single use.
3. The method avoids the rapid occurrence of weed resistance caused by using a single herbicide for preventing and killing, and delays the occurrence of weed resistance.
4. The dosage is reduced, the use cost is reduced, and the environmental pollution is reduced. .
Detailed Description
Example 1 indoor formulation screening
1.1 test conditions
The tested weeds are brome, arthroncus, descurainia sophia and cleavers. And (3) culturing the test material in a glass greenhouse in 12 months at the temperature of 10-25 ℃, naturally illuminating, and keeping the temperature by heating. Sowing quantitative seeds of brome, arthroncus, descurainia sophia and cleavers in a plastic pot with the diameter of 9 cm, covering soil of 1-2 mm, putting the pot into an enamel tray filled with water, allowing the water to gradually permeate into the pot, and transferring the pot into a glass greenhouse for later use after the water permeates into the soil surface.
The water can not be watered 1-2 days after the pesticide is sprayed, and the water is supplemented by a bottom infiltrating irrigation mode at regular intervals to keep the soil humidity.
1.2 design of the experiment
The tested medicament is 90% of terbutryn technical and 91% of sulfentrazone technical. Weighing quantitative terbutryn and sulfentrazone raw medicines respectively by an electronic balance, adding a special emulsifier for dissolving, then adding 2 times of N, N-dimethylformamide for completely dissolving, and diluting with 0.1% tween-80 aqueous solution to obtain 1% mother liquor for later use.
Terbutryn is 125, 250, 500, 1000 ga.i./ha, sulfentrazone is 25, 50, 100, 200 ga.i./ha. The different dosages of each medicament are mixed two by two to obtain different mixed dosages.
Tests show that the soil is evenly sprayed and treated 2 days after seeding of brome, wheat internode, descurainia sophia and cleavers.
The ASS-4 type automatic control spraying system and the fan-shaped spray head are adopted to combine the pressure, the flow rate and the like of the spray head to spray the medicine according to the actual spraying area (1.1 m)2) Spraying 50 mL of liquid medicine (the water consumption is 30L per mu), and adjusting the operationAnd (3) uniformly arranging the plastic pots to be treated on a spraying table, and uniformly spraying. The spraying pressure is 0.35 MPa, and the flow of the fan-shaped spray head is 800 mL/min. Spraying from low amount to high amount. Each treatment was repeated 4 times.
1.3 calculation of test results
The combination effect pattern after mixing was evaluated by the Gowing method.
The theoretical prevention effect calculation formula of the Gowing method is as follows:
wherein X, Y is the actual measurement preventing value (%) of two single agents, E is the actual measurement preventing value (%) of different mixture ratios, and E is the actual measurement preventing value (%) of two single agents0Is the theoretical proof value (%). When E-E0Addition between-5 and-5, E-E0>5 hours is synergistic, E-E0<Antagonism is observed at-5.
TABLE 1 indoor determination of terbutryn and sulfentrazone by mixing and combining-Gowing method
Test results show that the terbutryn soil sealing treatment has low action speed, and weeds grow for a period of time after emerging and then die gradually, so that the terbutryn soil sealing treatment has a good effect on brome, has a certain effect on the hard-to-prevent malignant weeds, namely arthroncus metschwann, and also has a good effect on broadleaf weeds, namely cleavers and descurainia sophia; the other drug, sulfentrazone, has high action speed, the weeds grow seedlings and whiten after the application of soil and begin to die, the effect on broad-leaf weeds such as descurainia sophia and cleavers is excellent, the effect on brome is certain, and the effect on wheat festival is poor.
After the terbutryn and the sulfentrazone are compounded, the quick-acting property and the persistence are good, the effects on brome, descurainia sophia and cleavers are good, the effect on jointing wheat is also good, and the compounding effect belongs to obvious synergistic action.
Example 2 field Effect measurement
2.1 test conditions
2.1.1 selection of crops and cultivars
Winter wheat is 22, 12-10-12-2018-year-old sowing, and mechanically drill sowing.
2.1.2 selection of weeds in test subjects
Sparrow wheat, descurainia sophia and shepherd's purse as main materials, and a small amount of jiejie.
2.1.3 cultivation conditions
The experimental wheat field is set in Shandong province, Jinan City, Shandong province, China, Shandong province, China, History district, Hunshou town, Huzhou. The test field is loam, the organic matter content is about 1.7 percent, and the pH value is 7.2. No other herbicide was applied throughout the test period; no disease and pest is found during application.
The test terrain is smooth, the management is consistent, and the fertility and the water pouring conditions are good.
Corn is planted in the previous crop of the test field, and the herbicide is nicosulfuron, mesotrione and atrazine.
2.2 design of the experiment
2.2.1 test Agents
50 percent of terbutryn suspending agent, 40 percent of sulfentrazone suspending agent and 40 percent of terbutryn suspending agent (3 proportioning designs are recommended by indoor experiments to prepare the 40 percent of terbutryn suspending agent, and the terbutryn and the sulfentrazone are respectively 3:1, 5:1 and 7: 1).
2.2.2 methods of use
The spraying apparatus was a better than high-grade knapsack sprayer, and the treatments were sprayed evenly by adding 450 liters of water per hectare. And (3) uniformly spraying the soil on the 2 nd day after wheat sowing.
2.2.3 application time and frequency
The test was performed in 2018, 10 and 13 days, with one administration. Wheat was sown on day 2 at the time of application.
2.3 method of calculating drug efficacy
Calculating the formula:
table 240% determination of effect of terbutryn in winter wheat field (investigation 4 months and 10 days after winter)
Test results show that the 50% terbutryn suspending agent has good effects on brome, descurainia sophia and shepherd's purse, and also has certain effects on wheat burls; the 40% sulfentrazone suspending agent has excellent effect on broadleaf weeds such as descurainia sophia and shepherd's purse, better effect on sparrow wheat and poor effect on festival wheat.
The two compound preparations are 40% of terbutryn as a suspension agent integrating the advantages of two single preparations, the advantages of the weed control spectrum are complementary, the effect on test fields of gramineous weeds, brome, broadleaf weeds, descurainia sophia and shepherd's purse is excellent, the effect on wheat burls is also good, and 3 proportions are better than the two single preparations.
40 percent of terbutryn is safe to winter wheat as the sulfentrazone suspending agent.
Example 3 field Effect measurement
3.1 test conditions
3.1.1 selection of crops and cultivars
The peanut is a sea flower, is sowed in 2019 in 6 months and 10 days, and is mechanically and shallowly rotated in a test field before sowing.
3.1.2 selection of weeds in test subjects
Crab grass, cockspur grass, piemarker and purslane.
3.1.3 cultivation conditions
The experimental peanut field is arranged in the Taiping town of Jiyang area of Jinan City in Shandong province. The test field is loam, the organic matter content is about 1.5 percent, and the pH value is 7.4.
The test terrain is smooth, the management is consistent, and the fertility and the water pouring conditions are good.
Wheat is planted in the previous crop of the test field, and the herbicide is mesosulfuron-methyl and florasulam.
3.2 design of the experiment
3.2.1 test Agents
50 percent of terbutryn suspending agent, 40 percent of sulfentrazone suspending agent and 40 percent of terbutryn suspending agent (3 proportioning designs are recommended by indoor experiments to prepare the 40 percent of terbutryn suspending agent, and the terbutryn and the sulfentrazone are respectively 3:1, 5:1 and 7: 1).
3.2.2 methods of use
The spraying apparatus was a better than high-grade knapsack sprayer, and the treatments were sprayed evenly by adding 450 liters of water per hectare. And (4) uniformly spraying the soil after peanut sowing before seedling.
3.2.3 application time and frequency
The test was performed in 2019 on day 6 and 11, with one administration. The application method is carried out on the 2 nd day after peanut seeding.
3.3 method of calculating drug efficacy
Calculating the formula:
table 340% terfenamate suspension agent applied to peanut field effect determination (investigation 30d after pesticide application)
Test results show that the 50% terbutryn suspending agent has good effect on gramineous weeds, large crabgrass and cockspur grass, and has slightly low effect on broadleaf weeds, purslane and piemarker; the 40% sulfentrazone suspending agent has excellent effect on broad-leaf weeds of purslane and piemarker, has better effect on barnyard grass, but has poor effect on grass weeds of crabgrass. The two compound preparations are 40% of terbutryn as a suspension agent integrating the advantages of two single preparations, the advantages of the weed control spectrum are complementary, the quick action and the persistence are good, the suspension agent has good effects on the test field gramineous weeds of crab grass, cockspur grass, broadleaf weeds of abutilon and purslane, and 3 mixture ratios are far better than those of the two single preparations.
40 percent of terbutryn is safe for peanuts.
The foregoing is only a preferred embodiment of this patent, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of this patent, and these modifications and substitutions should also be regarded as the protection scope of this patent.
Claims (8)
1. A herbicide composition containing terbutryn and sulfentrazone is characterized in that: the weight ratio of the terbutryn to the sulfentrazone is 1.25:1-40: 1.
2. The herbicide composition containing terbutryn and sulfentrazone as claimed in claim 1, wherein: the weight ratio range of the terbutryn to the sulfentrazone is 2.5:1-10: 1.
3. The herbicide composition containing terbutryn and sulfentrazone as claimed in claim 2, wherein: the weight ratio range of the terbutryn to the sulfentrazone is 3:1-7: 1.
4. A herbicidal composition containing terbutryn and sulfentrazone as claimed in claim 3, wherein: the weight ratio of the terbutryn to the sulfentrazone is 3:1, 5:1 or 7: 1.
5. The herbicide composition containing terbutryn and sulfentrazone as claimed in claim 2, wherein: the weight ratio of the terbutryn to the sulfentrazone is 2.5:1 or 10: 1.
6. The herbicide composition containing terbutryn and sulfentrazone as claimed in claim 1, wherein: the weight ratio of the terbutryn to the sulfentrazone is 1.25:1, 20:1 or 40: 1.
7. A herbicidal composition containing terbutryn and sulfentrazone as claimed in claims 1-6, wherein: the herbicide composition preparation is an acceptable pesticide formulation such as missible oil, aqueous suspension, oil suspension, wettable powder, granules or water dispersible granules.
8. A herbicidal composition containing terbutryn and sulfentrazone as claimed in claims 1-7, wherein: the herbicide composition is used for preventing and killing weeds such as brome, arthroncus, descurainia sophia and cleavers in garlic, wheat, soybean, peanut and corn fields.
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| CN1332608A (en) * | 1998-11-10 | 2002-01-23 | 辛根塔参与股份公司 | Herbicidal composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332608A (en) * | 1998-11-10 | 2002-01-23 | 辛根塔参与股份公司 | Herbicidal composition |
| EP1128729B1 (en) * | 1998-11-10 | 2003-05-21 | Syngenta Participations AG | Herbicidal composition |
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