A kind of herbicide composition and its application

Abstract

The present invention provides a herbicide composition and its application. The composition comprises 20 to 60 parts of sulfonylurea components, 100 to 300 parts of simazine, 1 to 5 parts of imide components, and 17 to 57 parts of glufosinate ammonium by weight. The herbicide composition provided by the present invention belongs to a broad-spectrum herbicide with both stem and leaf treatment and soil treatment characteristics, and has the advantages of high efficiency, low toxicity, broad-spectrum herbicide killing, rapid effect, and long lasting effect; it overcomes the disadvantages of long-term use of a single agent, which leads to the occurrence and development of weed resistance, makes up for the shortcomings of existing non-cultivated land herbicides in the actual application process, and increases the use options of non-cultivated land herbicides.

Description

Technical Field

[0001] The invention belongs to the technical field of non-cultivated land herbicides and compounding thereof, and specifically relates to a herbicide composition and application thereof. Background Art

[0002] The overgrown weeds in non-cultivated land such as railways, highways, airports, power plants, warehouses, industrial and mining enterprises, forestry and other places not only affect the appearance, but also easily block signals, cause fires, or become intermediate hosts or overwintering places for certain pests and diseases, thus causing certain harm to the operation and maintenance of non-cultivated land. Overgrown weeds have always been a headache for the above-mentioned industries. Chemical herbicides have become the main way to weed in non-cultivated land due to their quick effect, high efficiency, time-saving and labor-saving advantages. Existing chemical weed control for non-cultivated land is weed control without involving the planting of crops in the current crop, so the application of pesticides is generally based on herbicides such as lethal (i.e. non-selective, effective for almost all weeds) and long-lasting effect. The lethal herbicides currently used on non-cultivated land are mainly single-ingredient herbicides such as glyphosate, glufosinate-ammonium, and sulfamethoxam.

[0003] However, many application cases have shown that the long-term continuous high-dose use of a single variety or a single mode of action of chemical herbicides can easily cause problems such as weed resistance and resistance evolution, and will also have a great impact on the soil environment and surrounding crops. In recent years, due to the large-scale use of some herbicide varieties alone, many weeds, such as sedge, thatch, fleabane, madder, etc., have developed resistance. At the same time, the weeds in non-arable land are complex, with many types of weeds and shrubs such as grass weeds, broadleaf weeds, sedge weeds, and small shrubs. The use of a single variety of herbicides cannot completely solve the problem of weeds in non-arable land, and they will all show defects and limitations in certain aspects.

[0004] Reasonable compounding or mixing of herbicide compounds has the advantages of expanding the weed spectrum, improving the control effect, delaying the occurrence and development of weed resistance and drug resistance, etc., and is one of the most effective ways to solve the above problems. However, when mixing different herbicides, if the compounding components or proportions are inappropriate, antagonism may occur between the active ingredients, or only ordinary additive effects may occur, making it difficult to achieve the desired effect. At present, the market is mainly dominated by single-ingredient herbicides, and compound preparations are mostly binary or ternary compounds. However, these existing compound preparations still have unclear synergistic effects, and the weed control spectrum, rapidity, duration of effect, and high-efficiency resistance removal are difficult to fully meet the needs of non-arable land weed control.

[0005] Various herbicides have different weed killing ranges due to their different chemical compositions and physicochemical properties. Some herbicides have a narrow weed killing range, but they are unique in that they can eradicate weeds that are difficult to kill with other herbicides. The herbicide composition of the present invention, which is a compound of four components of sulfometuron-methyl, simazine, fluazifop-butyl and glufosinate-ammonium, can better solve the above technical problems. At present, there is no report on the herbicide composition of the four components of sulfometuron-methyl, simazine, fluazifop-butyl and glufosinate-ammonium and its application. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a low-toxic, broad-spectrum, high-efficiency, fast-acting and long-lasting herbicide composition that can effectively prevent and kill resistant weeds; another object of the present invention is to provide an application of a herbicide combination for weeding in non-arable land.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A herbicide composition comprises, by weight, 20 to 60 parts of sulfonylurea components, 100 to 300 parts of simazine, 1 to 5 parts of imide components and 17 to 57 parts of glufosinate ammonium.

[0009] Preferably, the sulfonylurea component is sulfamethoxam-methyl, and the imide component is fluazifop-butyl.

[0010] The total herbicide composition as described above preferably comprises 40 to 60 parts of the sulfonylurea component, 100 to 200 parts of simazine, 3 to 5 parts of the imide component, and 17 to 37 parts of glufosinate ammonium.

[0011] Furthermore, the most preferred ingredients are 40 parts of the sulfonylurea component, 200 parts of simazine, 3 parts of the imide component, and 37 parts of glufosinate-ammonium.

[0012] The herbicide composition as described above is not limited to being applied in the form of a compounded composition during actual use. Depending on the application conditions or when it is more convenient, the components may be freely combined and applied sequentially or the components may be mixed in a tank. As long as all the above-mentioned effective components are used on the land to be treated, the effect can be achieved. Preferably, the effects are better when the components are applied simultaneously.

[0013] The herbicide composition as described above, preferably, the preparation method for applying the herbicide composition is as follows:

[0014] S1, weigh the raw materials of each component;

[0015] S2, crushing and grinding the above raw materials into fine powder and sieving for later use (the sieve size is not less than 900 mesh);

[0016] S3, adding auxiliary agents to the fine powder sieved in step S2 to prepare any dosage form acceptable in the market.

[0017] Preferably, the herbicide component in step S2 is ground by micro-diameter grinding technology, and adjuvants acceptable in the field of pesticide processing are added, and conventional technology and processes can be used to prepare any dosage form acceptable in the market, such as aqueous solution, aqueous emulsion, suspoemulsion, suspension, water dispersible granules, wettable powder, etc. The most preferred is suspension.

[0018] Preferably, the suspending agent can be added with an auxiliary agent selected from one or more of a wetting agent, a thickener, a dispersant, a defoamer, a stabilizer, an antifreeze agent and water, and water is added to the total weight of 1000 parts, and the suspension is fully sheared and mixed in a shearing kettle to form a uniform milky white suspension, wherein the water used is deionized water;

[0019] Preferably, acceptable additives are, by weight, 10 to 100 parts of wetting agent, 1 to 30 parts of thickener, 5 to 50 parts of dispersant, 1 to 30 parts of defoaming agent, 1 to 20 parts of stabilizer, 10 to 60 parts of antifreeze agent, and the balance is made up to 1000 parts with water.

[0020] In the herbicide composition as described above, preferably, the wetting agent is a mixture of any one or more of alkylnaphthalene sulfonates, fatty alcohol sulfates, sulfonates, fatty amine polyoxyethylene ethers, fatty alcohol polyoxyethylene ethers, alkylphenol polyoxyethylene ethers, alcohol ether phosphates and saponin powder;

[0021] The dispersant is a mixture of one or more of lignin sulfonate, polycarboxylate, polyoxyethylene polyoxypropylene ether block copolymer, alkyl naphthalene sulfonate, and pull-apart BX;

[0022] The thickener is a mixture of one or more of gum arabic, xanthan gum, magnesium aluminum silicate, sodium polyacrylate, and white carbon black;

[0023] The defoaming agent is a mixture of one or more of tributyl phosphate, higher alcohol, polyoxyethylene polyoxypropanolamine ether, dimethyl silicone oil and polyether modified silicone;

[0024] The antifreeze agent is a mixture of one or more of ethylene glycol, polyethylene glycol, propylene glycol, glycerol, sorbitol, urea and sodium chloride;

[0025] The stabilizer is a mixture of one or more of dodecylbenzenesulfonic acid, citric acid, triethanolamine, oxalic acid, sodium carbonate and sodium bicarbonate;

[0026] The water is deionized water.

[0027] The use of the herbicide composition of the present invention in chemical weed control in non-cultivated land, further, the effective ingredient dosage of the herbicide composition is 2100g.ai / hm 2 It can be used to control annual and perennial weeds in non-arable land, especially weeds that are seriously resistant to common herbicides, including but not limited to grass weeds, broadleaf weeds and sedge weeds.

[0028] The beneficial effects of the present invention are:

[0029] The herbicide composition provided by the present invention belongs to the broad-spectrum herbicide with both stem and leaf treatment and soil treatment characteristics, and has the advantages of high efficiency, low toxicity, broad-spectrum herbicide killing, rapid effect and long lasting effect; it overcomes the disadvantage of long-term use of a single agent leading to the occurrence and development of weed resistance, makes up for the shortcomings of existing non-arable land herbicides in actual application, and increases the use options of non-arable land herbicides.

[0030] The herbicide composition provided by the present invention is a composite herbicide composition with sulfamethoxam, simazine, fluazifop-butyl and glufosinate as herbicidal active ingredients. The components exhibit obvious synergistic effect when combined within a certain ratio range, and the synergistic effect is better than that of two-component and three-component composites of the components, and a relatively excellent weed control effect can be achieved with a relatively small amount of herbicide applied, thereby reducing the cost of drug use.

[0031] After applying the herbicide composition of the present invention, the 7-day and 180-day weed control effects are significantly improved, the speed of drug effect is increased, and the lasting effect is extended to more than 180 days; the weeds that have broken through the soil can be killed stably and quickly and have a strong sealing effect; the number of times of applying the medicine can be reduced, the amount of medicine used can be saved, and it is more time-saving, labor-saving, economical and environmentally friendly.

[0032] The herbicide composition of the present invention expands the weed control spectrum, effectively solves the problem of weeds resistant to conventional herbicides, and solves the problem of controlling common resistant weeds; it is unexpectedly found that it can effectively control weeds and shrubs such as Cyperus rotundus and elm of the shrub family that are difficult to control with conventional herbicides.

[0033] The herbicide composition of the present invention is a combination of foliar treatment agents such as flumioxazin and glufosinate ammonium and soil treatment agents such as sulfometuron-methyl and simazine, so as to form a dual property of foliar treatment agent and soil treatment agent, which can not only quickly kill the weeds that have emerged from the soil, but also seal the weed seeds that have not germinated in the soil, thereby achieving a more comprehensive weed control goal. DETAILED DESCRIPTION

[0034] The inventors conducted in-depth research on the formulation ingredients through visits and investigations in non-cultivated land areas and large-scale experiments, and compounded four types of herbicides, including sulfamethoxam, simazine, fluazifop-propyl, and glufosinate-ammonium, into a combined preparation. After further research, the present invention was completed, in order to delay and solve the occurrence and development of weed resistance, expand the weed control spectrum, increase the effective period, reduce the amount of medicine used, reduce the impact on the surrounding environment and crops, and improve economic benefits.

[0035] The present invention screens out a reasonable composite formula by scientifically compounding different types of herbicides, thereby improving the actual control effect on non-cultivated weeds, expanding the weed control spectrum, reducing the amount of medicine used, reducing the cost of medicine use, reducing the impact on the surrounding environment and crops, and slowing down and solving the occurrence and development of weed resistance and drug resistance, saving time and labor, and is an important means for the comprehensive control of weeds in non-cultivated land.

[0036] The technical scheme of the present invention is based on the principle of pesticide compounding technology, with reference to the application effects of different herbicide components, according to the principle of complementary effects and synergistic enhancement, after a large number of theoretical and experimental studies, several components are selected to complement each other, and the herbicide composition is processed into a herbicide composition through a reasonable concentration ratio combination and a specific process. When the herbicides are mixed, if the ratio is not appropriate, antagonism may occur between the active ingredients, or only ordinary addition effects may be produced, and it is difficult to achieve the desired effect. The combination of the four components of the present invention plays a significant synergistic effect under a certain dosage ratio.

[0037] The following examples are used to further illustrate the present invention, but should not be construed as limiting the present invention. Without departing from the spirit and substance of the present invention, modifications or substitutions made to the present invention all belong to the scope of the present invention.

[0038] Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art. Unless otherwise specified, the reagents used in the examples are of analytical grade or above, and the reagents used are commercially available products.

[0039] Examples 1-15

[0040] The main resistant weeds in non-arable land: Goosegrass, Imperata cylindrica, Erigeron cantoniensis, Rubia cordifolia, as well as Cyperus rotundus and Ulmus pumila which are difficult to be inhibited by conventional herbicides were selected as test objects. The test time was spring, and the test site was a non-arable land beside a section of railway and power transmission and transformation line on the west side of Hanhe Road in Sijiqing area, Haidian District, Beijing (specific location: 39°57'8.30" east longitude, 116°14'24.50" north latitude, and an open space near an altitude of 52.58m). The control effect of a composition obtained by mixing sulfometuron-methyl, simazine, fluazifop-butyl and glufosinate in different weight proportions and a single agent of each component in the comparative example on non-arable land weeds was studied.

[0041] Examples 1-15 are herbicide compositions prepared by a specific process containing three or more of the active ingredients sulfasulfuron-methyl, simazine, fluazifop-propyl, and glufosinate-ammonium, and adding corresponding adjuvants (such as wetting agents, thickeners, dispersants, defoamers, stabilizers, antifreeze agents, and water), and the ratios of the active ingredients are different, as shown in Table 1. Comparative Examples 1-5 are commercially available single-ingredient preparations of the above four ingredients (i.e., commercially available 10% sulfasulfuron-methyl suspension, 50% simazine suspension, 51% fluazifop-propyl water dispersible granules, 30% glufosinate-ammonium aqueous solution) and 30% glyphosate isopropylamine salt water solution commonly available on the market (see Table 2).

[0042] The method for configuring the herbicides in Examples 1-15 is:

[0043] S1. Weigh the raw materials of each component according to the amount of each component in Table 1;

[0044] S2, crushing the active ingredients of the above-mentioned herbicides, grinding them into fine powder by a sand mill and sieving them for later use (the mesh size is not less than 900 mesh);

[0045] S3, adding an auxiliary agent and water to the fine powder obtained in step S2, and continuing to add water to a total weight of 1000 parts, and fully shearing and mixing in a shearing kettle to make it a uniform milky white suspension, wherein the water used is deionized water;

[0046] The active ingredients of the herbicide in step S2 are ground using micro-diameter technology, and adjuvants acceptable in the field of pesticide processing are added. Conventional technology and processes can be used to prepare any dosage form acceptable in the market, such as aqueous solution, aqueous emulsion, suspoemulsion, suspension, water dispersible granules, wettable powder, etc.

[0047] The preferred suspending agent of this embodiment can be added with an auxiliary agent selected from one or more of a wetting agent, a thickening agent, a dispersant, a defoaming agent, a stabilizer, an antifreeze agent and water. The auxiliary agents added in Examples 1-15 are 60 parts of fatty amine polyoxyethylene ether (wetting agent), 5 parts of xanthan gum (thickening agent), 20 parts of sodium lignin sulfonate (dispersant), 2 parts of dimethyl silicone oil (defoaming agent), 10 parts of triethanolamine (stabilizer), 50 parts of polyethylene glycol (antifreeze agent), and deionized water is added to a total weight of 1000 parts as an example.

[0048] A blank control was prepared by adding only the above-mentioned auxiliary agent and deionized water to a total weight of 1000 parts without adding any active ingredient.

[0049] Table 1: Weight parts of each component in the examples

[0050]

[0051] Table 2: Corresponding components of each comparative example

[0052]

[0053] The treatment according to the formula in each example was repeated 4 times, and 25 m 2 (5m×5m), arranged in random blocks. In addition to applying different herbicide composition ratios according to the above scheme, the grass phase conditions in each treatment area are basically the same, and the other conditions in each treatment area are exactly the same. The application method is spraying with a backpack sprayer. The dosage of the active ingredient of the herbicide applied in each embodiment and the comparative example is the same, which is 0.2100g / m 2 , i.e. 2100 g.ai / hm 2 To ensure uniform spraying and control a single variable in the test, each treatment was applied as a 250-fold diluted solution of the total effective ingredient mass, i.e., 35 kg of diluted solution was used per mu. Observations and measurements were conducted three times on the 7th, 45th, and 180th days after spraying the herbicide, and the weed control effect in the treatment area was recorded and counted. During the survey, 5 random sampling points were taken in each plot, with a sample area of ​​1m 2 The corresponding weed control effects are shown in Table 3.

[0054] Table 3: Statistics of weed control effects of each component

[0055]

[0056] Table 3

[0057]

[0058]

[0059] Note: The weed control effect in the above table is calculated based on the weed control effect per plant, that is, weed control rate = (number of weeds in the blank control area - number of weeds in the treatment area) / number of weeds in the blank control area × 100%. The larger the weed control rate value, the better the weed control effect.

[0060] It can be seen from the above table that: by comparing Examples 1 to 15, it is found that Example 14 has the best comprehensive weed control effect, and the content ratio of each component in Example 14 is the optimal combination.

[0061] By comparing Examples 1 to 15 with Comparative Examples 1 to 4, it can be seen that, compared with each single agent, the herbicidal rate of the compound mixture is significantly improved, showing an obvious additive or synergistic effect.

[0062] By comparing the 7-day weed control effects of Examples 1 to 12 and Comparative Examples 1 to 4, it can be seen that the simultaneous addition of flumioxazolidinone and glufosinate ammonium has a significant effect on improving the weed killing speed of the herbicidal composition, and removing either or both of them will significantly reduce the quick-acting effect. From the 7-day control effects of Examples 7 to 12, it can be seen that without the addition of flumioxazolidinone, simply adding the glufosinate ammonium component cannot significantly and continuously increase the short-term control effect (quick-acting property); similarly, without the addition of the glufosinate ammonium component, simply increasing the content of flumioxazolidinone component cannot significantly and continuously increase the quick-acting property.

[0063] By comparing the 180-day weed control effects of Examples 1 to 12 and Comparative Examples 1 to 4, it can be seen that the simultaneous addition of sulfasulfuron-methyl and simazine has a significant effect on improving the 180-day long-lasting control effect (persistence) of the herbicide composition. Removing either or both of them will significantly reduce the persistence.

[0064] It can be seen from the 45-day weed control effects of Examples 1 to 15 that the weed control effects of each Example at 45 days are the highest at an appropriate concentration ratio, and other combinations of too high or too low concentrations cannot achieve the best effect. Each Example shows the highest weed control rate at 45 days.

[0065] It can be seen from Comparative Example 5 and other comparative examples and embodiments that glyphosate, a common lethal herbicide for non-arable land, is not as effective as expected in terms of rapid effect, duration of effect and comprehensive weed control performance against resistant weeds, and the weed resistance problem is obvious.

[0066] In addition, by comparing the weed control conditions of other embodiments and comparative examples at 7 days and 180 days through Examples 13 to 15, it was found that the weed control effect of the composite herbicide of the present invention having four active ingredients was greatly improved after 7 days and 180 days of application, which indicates that the composite herbicide composition of the present invention has a significant effect on increasing the speed of weed control and prolonging the effective period of weed control.

[0067] In general, the four active ingredients of the herbicide complement each other, promote each other in coordination, and are indispensable. If any one or more of the ingredients are removed, the weed control effect will be greatly reduced. The weed control effect is optimal when only four ingredients are present at the same time and in a reasonable ratio. The inventor unexpectedly found that the resistant weeds and shrubs such as Cyperus rotundus and elm of the shrub family, which are difficult to effectively control with conventional herbicides, can be effectively controlled, and the high-efficiency resistance control effect is significant.

[0068] Example 16, Indoor biological activity test (determination of the combined action of herbicides)

[0069] In order to further verify whether the above-mentioned most preferred compound herbicide composition and its corresponding different mixed combinations have a synergistic effect or a synergistic addition effect in preventing and controlling non-cultivated weeds, the optimal herbicide composition of Example 14 and its corresponding single-dose components are selected as research objects, and four single-dose combinations of sulfometuron-methyl, simazine, fluazifop-butyl, and glufosinate-ammonium, two of which are combined with each other, three of which are combined with each other, and four single-dose compound combinations are set as research objects. Representatives of common resistant weeds in non-cultivated land: Gramineous weeds Goosegrass and broad-leaved weeds Rubia cordifolia are selected as target weeds for testing, and an indoor biological activity test is also set. The specific experimental implementation method is as follows:

[0070] Treatment agent: Use an electronic balance (sensitivity 0.1mg) to weigh 0.2479g of 95% sulfometuron-methyl original drug, add 10ml acetone to fully dissolve, then dilute to 500ml with 0.1% Tween-80 aqueous solution to prepare sulfometuron-methyl 300g.ai / hm 2 Solution: Weigh 1.2015g of 98% simazine original drug, add 10ml of acetone to fully dissolve it, then dilute it to 500ml with 0.1% Tween-80 aqueous solution to prepare 1500g.ai / hm2 of simazine 2 Solution; weigh 0.0180g of 98% fluazifop TC, add 10ml acetone to fully dissolve, then dilute to 500ml with 0.1% Tween-80 aqueous solution to prepare fluazifop 22.5g ai / hm 2 Solution; weigh 0.2293g of 95% glufosinate ammonium technical, add 10ml of acetone to fully dissolve, then dilute to 500ml with 0.1% Tween-80 aqueous solution to prepare glufosinate ammonium 277.5g ai / hm 2 Solution (the above dosage of active ingredient is calculated based on the amount of active ingredient used when 2 ml of the agent solution is sprayed on the land area in a plastic pot with a diameter of 20 cm). According to the above single-dose preparation method or using the above single-dose solution as the mother solution of the treatment group, a series of proportions are set according to the purpose of mixing, and the following treatments are set (the blank control does not add any active ingredient, that is, only 10 ml of acetone is added and the volume is adjusted to 500 ml of solution with 0.1% Tween-80 aqueous solution, as the blank control treatment mother solution), and the details of each treatment are shown in Table 4 below.

[0071] Table 4: Dosage configuration table for each treatment agent

[0072]

[0073]

[0074] Test soil: Use non-arable topsoil with neutral pH and good permeability, dry naturally, sieve, and quantitatively fill into a 20 cm diameter culture pot (about 4 / 5 of the way).

[0075] Cultivation of test materials: soak and germinate the target weed seeds (Goosegrass and Rubia cordifolia) of uniform size and fullness from non-arable land, and sow them after the seeds turn white. Sow the pretreated weed seeds evenly and quantitatively in the soil in the pot at 15 seeds per pot, cover with 0.5-1.0 cm of soil, put them in a tray filled with water, let the water gradually penetrate from the bottom, and move them into a temperature-controlled culture room (temperature 20-30°C, natural light, relative humidity 57%-72%) for cultivation for use.

[0076] Chemical treatment: When the weeds grow to the 3-5 leaf stage, use a Potter spray tower to spray the stems and leaves. Spray 2 ml of the solution per pot. Repeat each treatment 4 times. Set an equal amount of water without the chemical as a blank control. After treatment, the test materials are placed in the culture room for cultivation.

[0077] Investigation method: After treatment, the growth status of target weeds was observed and recorded regularly, and the symptoms of weed damage were described. Twenty-one days after treatment, the herbicidal activity was investigated and recorded according to the growth inhibition method, and the fresh weight of the weeds was weighed.

[0078] Data statistical method: Based on the survey data, the fresh weight prevention effect (fresh weight inhibition rate) of each treatment was calculated according to the formula, and the unit is percentage (%).

[0079] Reference absolute value method: actual fresh weight protection effect E (%) = (fresh weight of miscellaneous trees and shrubs in the control area - fresh weight of miscellaneous trees and shrubs in the treatment area) / fresh weight of miscellaneous trees and shrubs in the control area × 100%.

[0080] The combined effect of herbicides was evaluated with reference to the Colby method: taking the mixture of three agents A, B, and C as an example, the theoretical fresh weight inhibitory effect of the mixture in corresponding proportions was calculated according to the formula: E0(%) = A + B + C +.......N = the inhibitory effect of agent 1 + the inhibitory effect of agent 2 + the inhibitory effect of agent 3 +.......the inhibitory effect of agent n.

[0081] Among them, A, B, C, ... N represent the actual fresh weight inhibition effect of single agents such as agent 1, agent 2, agent 3, ... agent N, respectively, and n is the number of mixed agents. E-E0>10% is a synergistic effect; E-E0<-10% is an antagonistic effect; E-E0 values ​​between ±10% are additive effects. The results of each treatment test are shown in Table 5 below.

[0082] Table 5: Statistical table of fresh weight inhibition effect

[0083]

[0084] As shown in Table 5, the E-E0 (%) values ​​of the four-component compound treatment of sulfometuron-methyl, simazine, fluazifop-butyl, and glufosinate ammonium were greater than 10% at a specific dosage ratio for the fresh weight inhibition effect of broad-leaved madder and grass grass, indicating that the four-component compound treatment had a significant synergistic effect compared with the single agent. Two or three of the four components were compounded with each other to form a total of ten groups of composite treatments (treatments 5 to 14): for madder, eight of them showed an additive effect, and only two groups (treatment 5 and treatment 10) showed a synergistic effect, but their E-E0 values ​​(%) were significantly lower than the corresponding four-component compound treatments; for grass grass, eight of them also showed an additive effect, and only two groups (treatment 10 and treatment 12) showed a synergistic effect, but their E-E0 values ​​(%) were also significantly lower than the corresponding four-component compound treatments. This indicates that the synergistic effect of the four-ingredient combination treatment under the above dosage ratio is significantly better than the combination treatment of two or three of the ingredients (binary and ternary combination).

[0085] It should be noted that the above description of the embodiments is to facilitate the understanding and use of the present invention by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is by no means limited to the above embodiments. Without departing from the spirit and essence of the present invention, any modification or replacement of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A herbicide composition, characterized in that: The active ingredients thereof are 40 parts by weight of sulfonylurea components, 200 parts of simazine, 3 parts of imide components and 37 parts of glufosinate ammonium; The sulfonylurea component is sulfamethoxam-methyl, and the imide component is fluazifop-butyl.

2. The herbicide composition according to claim 1, characterized in that: The preparation method for applying the herbicide composition is as follows: S1, weigh the raw materials of each component; S2, crushing and grinding the above raw materials into fine powder and sieving for later use; S3, adding auxiliary agents to the fine powder sieved in step S2 to prepare a dosage form acceptable in the market.

3. The herbicide composition according to claim 2, characterized in that: Acceptable dosage forms are aqueous solutions, aqueous emulsions, suspoemulsions, suspensions, water dispersible granules or wettable powders.

4. The herbicide composition according to claim 2, characterized in that: The auxiliary agent is one or more of a wetting agent, a thickener, a dispersant, a defoamer, a stabilizer, an antifreeze agent and water, and water is continuously added to make the total weight 1000 parts, and the mixture is fully sheared and mixed in a shear kettle to become a uniform milky white suspension.

5. The herbicide composition according to claim 2, characterized in that: The additives are calculated by weight as follows: 10 to 100 parts of wetting agent, 1 to 30 parts of thickener, 5 to 50 parts of dispersant, 1 to 30 parts of defoaming agent, 1 to 20 parts of stabilizer, 10 to 60 parts of antifreeze agent, and the balance is made up to 1000 parts by water.

6. The herbicide composition according to claim 4 or 5, characterized in that: The wetting agent is a mixture of any one or more of alkylnaphthalene sulfonate, fatty alcohol sulfate, sulfonate, fatty amine polyoxyethylene ether, fatty alcohol polyoxyethylene ether, alkylphenol polyoxyethylene ether, alcohol ether phosphate and saponin powder; The dispersant is a mixture of one or more of lignin sulfonate, polycarboxylate, polyoxyethylene polyoxypropylene ether block copolymer, alkyl naphthalene sulfonate, and pull-apart BX; The thickener is a mixture of one or more of gum arabic, xanthan gum, magnesium aluminum silicate, sodium polyacrylate, and white carbon black; The defoaming agent is a mixture of one or more of tributyl phosphate, higher alcohol, polyoxyethylene polyoxypropanolamine ether, dimethyl silicone oil and polyether modified silicone; The antifreeze agent is a mixture of one or more of ethylene glycol, polyethylene glycol, propylene glycol, glycerol, sorbitol, urea and sodium chloride; The stabilizer is a mixture of one or more of dodecylbenzenesulfonic acid, citric acid, triethanolamine, oxalic acid, sodium carbonate and sodium bicarbonate; The water is deionized water.

7. Use of the total herbicide composition according to any one of claims 1 to 6 in chemical weed control in non-arable land.

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