CN109287648B - Ligularia virgaurea prevention and removal compound herbicide as well as preparation method and use method thereof - Google Patents
Ligularia virgaurea prevention and removal compound herbicide as well as preparation method and use method thereof Download PDFInfo
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- CN109287648B CN109287648B CN201811278404.1A CN201811278404A CN109287648B CN 109287648 B CN109287648 B CN 109287648B CN 201811278404 A CN201811278404 A CN 201811278404A CN 109287648 B CN109287648 B CN 109287648B
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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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
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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
- A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
- A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
- A01N39/04—Aryloxy-acetic acids; Derivatives thereof
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Abstract
The invention belongs to the technical field of herbicides, and particularly relates to a novel ligularia virgaurea preventing and removing compound herbicide as well as a preparation method and a use method thereof. The herbicide comprises the following components, by weight, 40-90 parts of 2,4-D butyl ester; 10-50 parts of tribenuron-methyl; 40-70 parts of urea; 1-10 parts of anionic surfactant; 5-15 parts of an emulsifier; 4-8 parts of polytrisiloxane. The herbicide provided by the invention is suitable for natural grasslands where ligularia virgaurea occurs in large areas, and the ligularia virgaurea starts to die after being sprayed for 15 days, so that the effect is fast; generally, the medicine residue can not be detected in plants for about 10 days, the medicine residue can not be detected in soil for about 7 days, the degradation is fast, the toxicity is low, and the quality and the yield of the pasture are obviously improved. Meanwhile, the cost can be reduced by 77.8 percent, and the control expenditure of herdsmen is greatly saved.
Description
Technical Field
The invention belongs to the technical field of herbicides, and particularly relates to a novel ligularia virgaurea preventing and removing compound herbicide as well as a preparation method and a use method thereof.
Background
Ligularia virgaurea (Ligularia virgaurea) belongs to perennial toxic plants in Ligularia virgaurea of Compositae, and is widely distributed in alpine grasslands in Qinghai-Tibet plateau and Nipol regions. As branches and leaves of ligularia virgaurea contain white toxic latex, livestock can be poisoned and die after eating. Meanwhile, ligularia virgaurea has seed reproduction and rhizome reproduction capabilities, the coverage of ligularia virgaurea in a natural grassland is increased all the time, the yield of edible pasture is reduced seriously, and great loss is caused to the development of local animal husbandry.
At present, the control method of the grassland noxious and harmful grass mainly comprises the means of manual digging, chemical herbicide application, biological control and the like. When the toxic weeds are generated in a large area, manual digging is adopted, so that the efficiency is low, and the damage to the grassland is serious; the aim of preventing and killing toxic weeds can be achieved in a short time by adopting the chemical herbicide, but some chemical agents are left in soil for a long time and damage soil microorganisms. The biological herbicide uses plants with herbicidal activity as donors and target weeds as acceptors, and achieves the purpose of controlling the target weeds by separating active substances with herbicidal activity. The current research shows that the active ingredients in the bodies of the south America chrysanthemum fromorum, the bidens pilosa and the low-field chrysanthemum can be used as a botanical herbicide for preventing and controlling ligularia virgaurea. Although the biological herbicide does not produce pollution and has stable and lasting effect, the difficulty of extracting the weeding active substances is high, the input production period is long, the cost is high, and the factors limit the large-scale popularization and application of the biological herbicide.
At present, the chemical weeding method is still a weeding method widely applied, and researchers are constantly dedicated to reducing the soil residue rate of chemical herbicides, improving the weeding effect and the like. For example, chinese patent document CN103907629B discloses a compound herbicide for preventing ligularia virgaurea and its preparation and use methods, the herbicide is prepared from the following raw materials by weight percent: 2-40% of tribenuron-methyl; 5-40% of clopyralid; 40-90% of bentazon and the balance of auxiliary agents. The herbicide inhibits photosynthesis, water metabolism and cell division of ligularia virgaurea stem and leaf through mutual synergistic action of tribenuron-methyl, clopyralid and bentazone to cause nutrition starvation, enables physiological dysfunction of ligularia virgaurea to cause rapid withering of overground parts, ensures that the overground parts of plants are withered 30 days after application, has the effects of preventing and removing more than 95 percent of ligularia virgaurea, has no more than 40 days of residues in soil, belongs to an environment-friendly herbicide, and has the advantages of low phytotoxicity, small toxicity and the like. Although the patent literature improves the weeding effect on ligularia virgaurea and reduces the residue in soil, the dosage of the main agent is large, the components are not easy to obtain, the cost is high, and the aspects of long effective time and soil residue time are to be further improved.
Disclosure of Invention
Therefore, the invention aims to overcome the defects of high cost, difficult component acquisition, long effect taking time, long soil residual time and the like of the ligularia virgaurea compound herbicide in the prior art, thereby providing a novel ligularia virgaurea compound herbicide and a preparation method and a use method thereof.
In order to solve the technical problems, the invention adopts the following technical scheme:
a ligularia virgaurea compound herbicide for preventing and removing comprises a main agent and an auxiliary agent, wherein the main agent comprises the following components in parts by weight,
40-90 parts of 2,4-D butyl ester;
10-50 parts of tribenuron-methyl;
40-70 parts of urea;
the auxiliary agent comprises the following components in parts by weight,
1-10 parts of anionic surfactant;
5-15 parts of an emulsifier;
4-8 parts of ethoxy modified trisiloxane.
Preferably, the main agent comprises the following components in parts by weight,
55-80 parts of 2,4-D butyl ester;
25-45 parts of tribenuron-methyl;
50-60 parts of urea;
the auxiliary agent comprises the following components in parts by weight,
3-8 parts of an anionic surfactant;
8-12 parts of an emulsifier;
5-7 parts of ethoxy modified trisiloxane.
Further, the anionic surfactant may be an anionic surfactant which is conventional in the field of herbicides; most preferably, the anionic surfactant is sodium dodecylbenzenesulfonate.
Further, the emulsifier may be an emulsifier commonly used in the field of herbicides; most preferably, the emulsifier is alkylphenol ethoxylates.
The preparation method of the ligularia virgaurea compound herbicide comprises the following steps:
diluting 2,4-D butyl ester with water, adding tribenuron-methyl under the stirring condition, continuously stirring for a certain time, adding an auxiliary agent, sequentially adding an anionic surfactant, an emulsifier and ethoxy modified trisiloxane, stirring and mixing uniformly to obtain a mixture A, and respectively and independently packaging the mixture A and urea for later use.
Further, in the step of diluting the 2,4-D butyl ester by water, the volume ratio of the 2,4-D butyl ester to the water is 1: 100-400.
The application method of the compound herbicide for preventing ligularia virgaurea prepared by the method comprises the steps of diluting the mixture A with 40-65 times of water by volume, diluting urea with 10-40 times of water by mass, mixing with the diluted solution of the mixture A, and spraying onto leaf surfaces.
Preferably, the spraying time is selected from the period from flowering and heading to full-bloom period of ligularia virgaurea.
Preferably, the pasturing is prohibited for 10 to 15 days after spraying. The method is forbidden for at least 10 days after spraying, and herbicide residue can not be detected after 10 days generally.
The technical scheme of the invention has the following advantages:
the novel ligularia virgaurea prevention and control compound herbicide provided by the invention has the prevention and control cost of only 4 yuan/mu, and the prevention and control cost per mu of patent is 18 yuan in 2015, so that the cost can be reduced by 77.8%, and the prevention and control expenditure of herdsmen is greatly saved; the control effect can reach 99% at most, and is improved compared with the comparative example.
The ligularia virgaurea can die after being sprayed for 15 days, and the effect is quick; generally, the drug residue can not be detected in plants for about 10 days, and the drug residue can not be detected in soil for about 7 days, so that the residue time is obviously shortened, the degradation is fast, and the toxicity is low.
Meanwhile, the herbicide provided by the invention can also improve the yield and quality of pasture, and the patent is declared in 2015 to improve the grassland yield by 20%, so that the proportion of excellent pasture is increased by 10%; the invention can rapidly increase the proportion of the fine pasture on the grassland and increase the yield by more than 60 percent due to adding a small amount of nitrogen during the application, wherein the proportion of the grass is increased by more than 50 percent compared with that of a control area.
Detailed Description
The following examples are provided to further understand the present invention, not to limit the scope of the present invention, but to provide the best mode, not to limit the content and the protection scope of the present invention, and any product similar or similar to the present invention, which is obtained by combining the present invention with other prior art features, falls within the protection scope of the present invention.
The examples do not show the specific experimental steps or conditions, and can be performed according to the conventional experimental steps described in the literature in the field. The reagents or instruments used are not indicated by manufacturers, and are all conventional reagent products which can be obtained commercially.
In the following examples and comparative examples, 1 part is 10 g.
Example 1
The embodiment provides a ligularia virgaurea prevention and weeding compound herbicide, which comprises the following components of 40 parts of 2,4-D butyl ester; 50 parts of tribenuron-methyl; 40 parts of urea; 10 parts of sodium dodecyl benzene sulfonate; 5 parts of alkylphenol polyoxyethylene; and 8 parts of ethoxy modified trisiloxane.
The preparation method of the herbicide comprises the following steps:
slowly adding 2,4-D butyl ester into a stirring tank, diluting with 5 liters of tap water, stirring at the rotating speed of 50 revolutions per minute for 5 minutes, and uniformly mixing the diluted solution; then weighing the tribenuron-methyl powder with corresponding mass, putting the tribenuron-methyl powder into a stirring tank, and stirring for 10 minutes at the rotating speed of 80 revolutions per minute; and then, sequentially adding sodium dodecyl sulfate, alkylphenol ethoxylates and ethoxy modified trisiloxane, controlling the rotating speed to be 120 r/min, stirring for 30 min, fully mixing the medicaments in the stirring tank to obtain a mixed solution A, and separately packaging the urea and the mixed solution A for later use.
Example 2
The embodiment provides a ligularia virgaurea compound herbicide for preventing and removing, which comprises the following components, 90 parts of 2,4-D butyl ester; 10 parts of tribenuron-methyl; 70 parts of urea; 1 part of sodium dodecyl benzene sulfonate; 15 parts of alkylphenol polyoxyethylene; and 4 parts of ethoxy modified trisiloxane.
The preparation method of the herbicide comprises the following steps:
slowly adding 2,4-D butyl ester into a stirring tank, diluting with 9 liters of tap water, stirring at the rotating speed of 50 revolutions per minute for 5 minutes, and uniformly mixing the diluted solution; then weighing the tribenuron-methyl powder with corresponding mass, putting the tribenuron-methyl powder into a stirring tank, and stirring for 10 minutes at the rotating speed of 80 revolutions per minute; and then, sequentially adding sodium dodecyl sulfate, alkylphenol ethoxylates and ethoxy modified trisiloxane, controlling the rotating speed to be 120 r/min, stirring for 30 min, fully mixing the medicaments in the stirring tank to obtain a mixed solution A, and separately packaging the urea and the mixed solution A for later use.
Example 3
The embodiment provides a ligularia virgaurea compound herbicide for preventing and removing, which comprises 60 parts of 2,4-D butyl ester; 30 parts of tribenuron-methyl; 55 parts of urea; 6 parts of sodium dodecyl benzene sulfonate; 10 parts of alkylphenol polyoxyethylene ether; and 6 parts of ethoxy modified trisiloxane.
The preparation method of the herbicide comprises the following steps:
slowly adding 2,4-D butyl ester into a stirring tank, diluting with 6 liters of tap water, stirring at the rotating speed of 50 revolutions per minute for 5 minutes, and uniformly mixing the diluted solution; then weighing the tribenuron-methyl powder with corresponding mass, putting the tribenuron-methyl powder into a stirring tank, and stirring for 10 minutes at the rotating speed of 80 revolutions per minute; and then, sequentially adding sodium dodecyl sulfate, alkylphenol ethoxylates and ethoxy modified trisiloxane, controlling the rotating speed to be 120 r/min, stirring for 30 min, fully mixing the medicaments in the stirring tank to obtain a mixed solution A, and separately packaging the urea and the mixed solution A for later use.
Example 4
The embodiment provides a ligularia virgaurea prevention and weeding compound herbicide, which comprises the following components, 55 parts of 2,4-D butyl ester; 45 parts of tribenuron-methyl; 50 parts of urea; 8 parts of sodium dodecyl benzene sulfonate; 8 parts of alkylphenol polyoxyethylene; and 7 parts of ethoxy modified trisiloxane.
The preparation method of the herbicide comprises the following steps:
slowly adding 2,4-D butyl ester into a stirring tank, diluting with 10 liters of tap water, stirring at the rotating speed of 50 revolutions per minute for 5 minutes, and uniformly mixing the diluted solution; then weighing the tribenuron-methyl powder with corresponding mass, putting the tribenuron-methyl powder into a stirring tank, and stirring for 10 minutes at the rotating speed of 80 revolutions per minute; and then, sequentially adding sodium dodecyl sulfate, alkylphenol ethoxylates and ethoxy modified trisiloxane, controlling the rotating speed to be 120 r/min, stirring for 30 min, fully mixing the medicaments in the stirring tank to obtain a mixed solution A, and separately packaging the urea and the mixed solution A for later use.
Example 5
The embodiment provides a ligularia virgaurea prevention and weeding compound herbicide, which comprises 80 parts of 2,4-D butyl ester; 25 parts of tribenuron-methyl; 60 parts of urea; 3 parts of sodium dodecyl benzene sulfonate; 12 parts of alkylphenol polyoxyethylene; and 5 parts of ethoxy modified trisiloxane.
The preparation method of the herbicide comprises the following steps:
slowly adding 2,4-D butyl ester into a stirring tank, diluting with 11 liters of tap water, stirring at the rotating speed of 50 revolutions per minute for 5 minutes, and uniformly mixing the diluted solution; then weighing the tribenuron-methyl powder with corresponding mass, putting the tribenuron-methyl powder into a stirring tank, and stirring for 10 minutes at the rotating speed of 80 revolutions per minute; and then, sequentially adding sodium dodecyl sulfate, alkylphenol ethoxylates and ethoxy modified trisiloxane, controlling the rotating speed to be 120 r/min, stirring for 30 min, fully mixing the medicaments in the stirring tank to obtain a mixed solution A, and separately packaging the urea and the mixed solution A for later use.
Example 6
The embodiment provides a ligularia virgaurea prevention and weeding compound herbicide, which comprises the following components, 50 parts of 2,4-D butyl ester; 20 parts of tribenuron-methyl; 55 parts of urea; 3 parts of sodium dodecyl benzene sulfonate; 8 parts of alkylphenol polyoxyethylene; and 5 parts of ethoxy modified trisiloxane.
The preparation method of the herbicide comprises the following steps:
slowly adding 2,4-D butyl ester into a stirring tank, diluting with 6 liters of tap water, stirring at the rotating speed of 50 revolutions per minute for 5 minutes, and uniformly mixing the diluted solution; then weighing the tribenuron-methyl powder with corresponding mass, putting the tribenuron-methyl powder into a stirring tank, and stirring for 10 minutes at the rotating speed of 80 revolutions per minute; and then, sequentially adding sodium dodecyl sulfate, alkylphenol ethoxylates and ethoxy modified trisiloxane, controlling the rotating speed to be 120 r/min, stirring for 30 min, fully mixing the medicaments in the stirring tank to obtain a mixed solution A, and separately packaging the urea and the mixed solution A for later use.
Example 7
The embodiment provides a ligularia virgaurea prevention and weeding compound herbicide, which comprises 80 parts of 2,4-D butyl ester; 40 parts of tribenuron-methyl; 60 parts of urea; 7 parts of calcium lignosulphonate; 11 parts of alkylphenol polyoxyethylene; and 7 parts of ethoxy modified trisiloxane.
The preparation method of the herbicide comprises the following steps:
slowly adding 2,4-D butyl ester into a stirring tank, diluting with 8 liters of tap water, stirring at the rotating speed of 50 revolutions per minute for 5 minutes, and uniformly mixing the diluted solution; then weighing the tribenuron-methyl powder with corresponding mass, putting the tribenuron-methyl powder into a stirring tank, and stirring for 10 minutes at the rotating speed of 80 revolutions per minute; and then, sequentially adding sodium dodecyl sulfate, alkylphenol ethoxylates and ethoxy modified trisiloxane, controlling the rotating speed to be 120 r/min, stirring for 30 min, fully mixing the medicaments in the stirring tank to obtain a mixed solution A, and separately packaging the urea and the mixed solution A for later use.
Comparative example 1
The comparative example provides a ligularia virgaurea prevention and removal compound herbicide, which comprises the following components: 20 parts of tribenuron-methyl, 30 parts of clopyralid, 40 parts of bentazone and 5 parts of sodium dodecyl benzene sulfonate; 4.8 parts of alkylphenol polyoxyethylene and 0.2 part of polytrisiloxane. Adding tribenuron-methyl, bentazone and clopyralid weighed according to the weight ratio into a stirrer, adding 5L of tap water, uniformly stirring at the stirring speed of 70r/min, then adding sodium dodecyl benzene sulfonate, alkylphenol polyoxyethylene and modified polytrisiloxane according to the weight ratio, fully stirring and uniformly mixing, bottling and sealing.
Comparative example 2
The composition and preparation method are the same as comparative example 1, except that the herbicide also comprises 55 parts of urea.
Comparative example 3
The composition and preparation method are the same as those of comparative example 1, except that the herbicide also comprises 55 parts of ammonium dihydrogen phosphate.
Concrete application case
The herbicides of examples 1 to 7 and comparative examples 1 to 3 of the present invention were subjected to a small-area control test in 2013 on a natural grassland with severe damage of ligularia virgaurea in the tower, village, southeast, respectively, of the Qinghai province, and stem and leaf spray treatment was performed from the flowering and heading period of ligularia virgaurea to the full flowering period (from 7-8-month middle ten days), and sprayed by using a conventional knapsack sprayer, with a dosage of 3000g per hectare. The spraying method comprises the following steps: diluting the mixture A with water with the volume of 50 times, diluting urea with water with the mass of 30 times, and then mixing the urea diluent with the diluent of the mixture A, wherein the spraying height is 1 m, the spraying width is 2 m, and the pace speed is 1 m/s when foliage spraying is carried out. The weeding effect is counted, and the specific results are shown in table 1:
TABLE 1 herbicidal Effect of the herbicides
As can be seen from the data in the table, the plants to which the agent was applied showed curly stalks, green leaves and significantly inhibited growth 15 days after the agent was controlled. Meanwhile, the analysis of the soil residue in the application area on the seventh day shows that the residue of each component of the compound herbicide in the soil is lower than the national standard, and the residue is not detected in most areas.
The grassland species coverage and biomass before and after 40 days of control were counted for examples 1 to 7 of the present invention and comparative example 1, wherein the data of the examples are the average values after counting for examples 1 to 7. Specific results are shown in table 2:
TABLE 2 ligularia virgaurea compounded herbicide to prevent and kill out the variation of the coverage and biomass of various species in grassland after ligularia virgaurea
As can be seen from Table 2, after the compound herbicide provided by the embodiment of the invention is applied to controlling ligularia virgaurea, the biomass and the coverage of the ligularia virgaurea are rapidly reduced, the coverage and the biomass of gramineous plants mainly used as edible grasses on grasslands are rapidly increased, and simultaneously, after the ligularia virgaurea is controlled, the coverage and the biomass of various grasslands are improved. It is worth noting that the biomass and the coverage of the feverfew plants are increased to a certain extent after ligularia virgaurea is prevented and removed. Therefore, the medicament has good preventing and removing effect on ligularia virgaurea, is safe to other feverfew plants, and fully shows the characteristic of specific target. And the effect of the embodiment is better than that of the comparison.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the spirit or scope of the invention.
Claims (7)
1. A ligularia virgaurea compound herbicide for preventing and removing is characterized by comprising the following components in parts by weight,
the anionic surfactant is sodium dodecyl benzene sulfonate;
the emulsifier is alkylphenol polyoxyethylene.
2. The ligularia virgaurea controlling compound herbicide as claimed in claim 1, which comprises the following components in parts by weight,
3. the preparation method of ligularia virgaurea compound herbicide as claimed in any one of claims 1-2, which comprises the following steps:
diluting 2,4-D butyl ester with water, adding tribenuron-methyl under the stirring condition, continuously stirring for a certain time, adding an auxiliary agent, sequentially adding an anionic surfactant, an emulsifier and ethoxy modified trisiloxane, stirring and mixing uniformly to obtain a mixture A, and respectively and independently packaging the mixture A and urea for later use.
4. The preparation method of ligularia virgaurea controlling compound herbicide as claimed in claim 3, wherein in the step of diluting 2,4-D butyl ester with water, the volume ratio of 2,4-D butyl ester to water is 1: 100-400.
5. The use method of the ligularia virgaurea compound herbicide prepared by the method in claim 3 or 4 is characterized in that the mixture A is diluted by 40-65 times of water, urea is diluted by 10-40 times of water, and then the diluted solution is mixed with the diluted solution of the mixture A and sprayed to leaf surfaces.
6. The use method of the ligularia virgaurea compound herbicide for preventing and killing as claimed in claim 5, wherein the spraying time is selected from the period from the flowering ear emergence period to the full flowering period of ligularia virgaurea.
7. The use method of the ligularia virgaurea compound herbicide as claimed in any one of claims 1-4, wherein grazing is prohibited for 10-15 days after spraying.
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| CN102197831A (en) * | 2011-03-19 | 2011-09-28 | 兰州大学 | Method for inhibiting Ligularia virgaurea |
| CN103907629A (en) * | 2014-03-31 | 2014-07-09 | 青海省畜牧兽医科学院 | Compound herbicide for preventing and removing ligularia virgaurea as well as preparation method and application method thereof |
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| JPH107510A (en) * | 1996-06-19 | 1998-01-13 | Nissan Chem Ind Ltd | Decomposition promoter for sulfonylurea-based agrochemical |
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| CN1347643A (en) * | 2000-10-11 | 2002-05-08 | 山东华阳科技股份有限公司 | New type herbicide |
| CN101711524A (en) * | 2009-10-26 | 2010-05-26 | 河北省农林科学院粮油作物研究所 | Tribenuron-methyl and 2,4-D butyl ester compound wheat field herbicide |
| CN102197831A (en) * | 2011-03-19 | 2011-09-28 | 兰州大学 | Method for inhibiting Ligularia virgaurea |
| CN103907629A (en) * | 2014-03-31 | 2014-07-09 | 青海省畜牧兽医科学院 | Compound herbicide for preventing and removing ligularia virgaurea as well as preparation method and application method thereof |
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