CN111149803B - Compound preparation for preventing and killing off radix euphorbiae lantu and preparation method thereof - Google Patents
Compound preparation for preventing and killing off radix euphorbiae lantu and preparation method thereof Download PDFInfo
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- CN111149803B CN111149803B CN201811322186.7A CN201811322186A CN111149803B CN 111149803 B CN111149803 B CN 111149803B CN 201811322186 A CN201811322186 A CN 201811322186A CN 111149803 B CN111149803 B CN 111149803B
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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
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
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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
- 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
- A01N25/08—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 containing solids as carriers or diluents
- A01N25/10—Macromolecular compounds
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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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- 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
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/14—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings
- A01N43/16—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings with oxygen as the ring hetero 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
- A01N55/00—Biocides, pest repellants or attractants, or plant growth regulators, containing organic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen and sulfur
- A01N55/02—Biocides, pest repellants or attractants, or plant growth regulators, containing organic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen and sulfur containing metal atoms
- A01N55/04—Tin
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Abstract
The invention belongs to the technical field of herbicides, and particularly relates to a compound preparation for preventing and removing radix euphorbiae lantu and a preparation method thereof. Comprises the following components, by weight, 30-50 parts of 2,4-D octyl ester; 5-25 parts of triclopyr; 0.5-2 parts of gelatin; 0.5-2 parts of sodium octadecyl sulfonate. The herbicide has the characteristics of small dosage, high selectivity, high efficiency, safety and the like, has a prevention and removal effect of over 95 percent, has a good prevention and removal effect on the radix euphorbiae lantu, is safe for other excellent pasture and protects the biological diversity of grasslands.
Description
Technical Field
The invention belongs to the technical field of herbicides, and particularly relates to a compound preparation for preventing and removing radix euphorbiae lantu and a preparation method thereof.
Background
The natural grassland area of China is 3.6 hundred million hectares. The existence of the grassland supports the development of animal husbandry in national regions on one hand, and is also a main component of western ecological construction in China on the other hand. According to the relevant research data, toxic plants such as Chinese Stellera chamaeejasme are widely distributed on the vast natural grassland in China, and Chinese Stellera chamaejasme occupies 16 percent of the total grassland area in alpine grassland and tends to be gradually expanded.
The radix euphorbiae lantu belongs to Thymelaeaceae, has developed root system, is cold-resistant, drought-resistant, early-turning, strong in vitality and strong in stress resistance, and is a main toxic weed for fighting for nutrients and water with excellent pasture in alpine grassland. Due to the large-area spreading and breeding of the radix euphorbiae lantu, the scene of toxic weed cluster is formed in grassland areas, the yield of excellent pasture is greatly reduced, and the livestock is easy to be poisoned due to the fact that the livestock eats the radix euphorbiae lantu by mistake, so that the production value of the animal husbandry taking the excellent pasture as a main feed is seriously affected, and the development of the grassland husbandry is severely restricted. Therefore, killing the radix euphorbiae lantu is a primary technical measure in grassland improvement.
In recent years, intensive research on the aspect of a compound herbicide for targeted prevention and control of radix euphorbiae lantu has been carried out in China, for example, Chinese patent document CN101019534A discloses a compound herbicide for prevention and control of radix euphorbiae lantu, which is prepared from the following raw materials in percentage by weight: 50-94% of 2,4-D butyl ester, 5-50% of 3, 5, 6-trichloro-2-pyridyloxyacetic acid, 0.5-2% of gelatin and 0.5-2% of sodium octadecyl sulfonate; the preparation process comprises the following steps: adding 2,4-D butyl ester into a container, slowly adding 3, 5, 6-trichloro-2-pyridyloxyacetic acid while stirring, adding adjuvant gelatin and sodium octadecyl sulfonate, mixing, bottling, and sealing to obtain the final product. Chinese patent document CN103918655B discloses a compound herbicide for preventing and killing radix euphorbiae lantu, which comprises the following components in percentage by weight, 15-35% of 2,4-D butyl ester; 5-25% of 3, 5, 6-trichloro-2-pyridyloxyacetic acid; 1-4% of chitosan; 0.5 to 2 percent of polyethylene glycol; 0.5-2% of sodium octadecyl sulfonate; 1-4% of butyl hydroxy anisole; the balance of absolute ethyl alcohol.
The compound herbicide has strong targeting property, can reduce the toxic action on excellent pasture while preventing and removing the radix euphorbiae lantu, and has the preventing and removing efficiency of preventing and removing the radix euphorbiae lantu of over 95 percent; however, the active ingredient 2,4-D butyl ester of the compound herbicide is listed as a limited herbicide by the Ministry of agriculture in China; in addition, the 2,4-D butyl ester is low in degradation speed and long in residual time in soil and plants, and after the ester is used, pasturing needs to be prohibited for a long time, so that normal production and life of herdsmen are influenced.
Disclosure of Invention
Therefore, the invention aims to overcome the defects that the radix euphorbiae lantu control in the prior art needs an agricultural department banned reagent and has long residual time in soil and plants, and the like, thereby providing a radix euphorbiae lantu control compound preparation and a preparation method thereof.
In order to solve the technical problems, the invention adopts the following technical scheme:
a Chinese stellera root control compound preparation, which comprises the following components in part by weight,
further, the composition also comprises the following components in parts by weight:
preferably, the emulsifier is a Span series surfactant, preferably Span80 or Span 60.
Further preferably, the radix euphorbiae lantu compound preparation comprises the following components in parts by weight:
a preparation method of the radix euphorbiae lantu control compound preparation comprises the following steps:
uniformly mixing 2,4-D octyl ester with triclopyr, then uniformly mixing with gelatin and sodium octadecyl sulfonate, and packaging to obtain a mixture A;
mixing starch with water, heating for gelatinization, cooling to room temperature, adjusting pH to alkalinity, and mixing with emulsifier to obtain starch emulsion system;
and mixing stannous octoate, propylene glycol alginate and epichlorohydrin, adding the mixture into a starch emulsification system, stirring for reaction, performing centrifugal separation, drying, crushing and packaging a lower-layer solid product to obtain a mixture B.
Wherein, the mixture A and the mixture B are separately packaged and mixed when in use.
Further, the heating gelatinization temperature is 70-80 deg.C, and time is 3-12 min.
Further, the mass-to-volume ratio of starch to water, based on the mass of the starch, is 1: (5-20) g/mL.
Further, the stirring reaction temperature is 30-45 ℃, and the reaction time is 1-3 min.
Preferably, the comminution is to a particle size of 20 to 60 microns.
The application of the radix euphorbiae lantu preventing and removing compound preparation is characterized in that the pesticide application time is from the bud period to the initial flowering period of the radix euphorbiae lantu, and the dosage is 0.25-0.5kg/hm2。
The technical scheme of the invention has the following advantages:
1. the invention provides a compound preparation for preventing and killing radix euphorbiae lantu, which comprises the following components, by weight, 30-50 parts of 2,4-D octyl ester; 5-25 parts of triclopyr; 0.5-2 parts of gelatin; 0.5-2 parts of sodium octadecyl sulfonate. The herbicide has the characteristics of small dosage, high selectivity, high efficiency, safety and the like, has a prevention and removal effect of over 95 percent, has a good prevention and removal effect on the radix euphorbiae lantu, is safe for other excellent pasture and protects the biological diversity of grasslands.
The invention provides a radix euphorbiae lantu prevention and control compound preparation, which also comprises the following components in parts by weight: 10-15 parts of starch; 2-4 parts of stannous octoate; 1-3 parts of propylene glycol alginate; 1-2 parts of an emulsifier; 0.3-0.8 part of epoxy chloropropane. The degradation of each component in the preparation, especially 2,4-D octyl ester, can be promoted by adding a proper amount of stannous octoate, and the residual time in soil and plants is greatly shortened. Meanwhile, the starch is adopted to wrap the two, so that the 2,4-D octyl ester is prevented from being degraded too fast and losing the drug effect, and the problems of the drug effect and drug residue are solved. In addition, the propylene glycol alginate can further improve the control effect of preventing and killing the radix euphorbiae lantu and reduce the dosage of 2,4-D octyl ester.
2. According to the preparation method of the radix euphorbiae lantu prevention and control compound preparation, starch can be crosslinked in an emulsification system to form space network structure microspheres, stannous octoate and propylene glycol alginate are wrapped in the starch microspheres, and rapid degradation of 2,4-D octyl ester can be avoided. Starch is gelatinized in advance, hydrogen bonds combined among starch molecules are damaged, the molecular microcrystalline bundles are changed from the original tight combination state to the loose state, the situation that microspheres are too large and compact to influence the exertion of stannous octoate and propylene glycol alginate, the stannous octoate promotes degradation, the propylene glycol alginate promotes the improvement of the control effect, the two are balanced, effective control of radix euphorbiae lantu can be guaranteed, and the problem of reduction of the control effect caused by degradation of 2,4-D octyl ester is solved.
The preparation method of the radix euphorbiae lantu prevention and control compound preparation provided by the invention can ensure that all components of the prepared preparation can reasonably play a role by further optimizing and selecting the conditions of the gelatinization reaction and the stirring reaction.
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.
1 part in the following examples and comparative examples of the present invention corresponds to 10 g.
Example 1
The embodiment provides a compound preparation for preventing and killing radix euphorbiae lantu, which comprises the following components in parts by weight, 30 parts of 2,4-D octyl ester; 25 parts of triclopyr; 0.5 part of gelatin; and 2 parts of sodium octadecyl sulfonate.
The preparation method comprises the following steps: adding 2,4-D octyl grease into a container, slowly adding triclopyr while stirring, finally adding auxiliary gelatin and sodium octadecyl sulfonate, fully mixing, bottling, and sealing to obtain the product.
Example 2
The embodiment provides a compound preparation for preventing and killing radix euphorbiae lantu, which comprises the following components in parts by weight, 50 parts of 2,4-D octyl ester; 25 parts of triclopyr; 2 parts of gelatin; and 2 parts of sodium octadecyl sulfonate.
The preparation method is the same as that of example 1.
Example 3
The embodiment provides a compound preparation for preventing and killing radix euphorbiae lantu, which comprises the following components in parts by weight, 40 parts of 2,4-D octyl ester; 20 parts of triclopyr; 1 part of gelatin; 1.2 parts of sodium octadecyl sulfonate.
The preparation method is the same as that of example 1.
Example 4
The embodiment provides a compound preparation for preventing and killing radix euphorbiae lantu, which comprises the following components in parts by weight, 40 parts of 2,4-D octyl ester; 20 parts of triclopyr; 1 part of gelatin; 1.2 parts of sodium octadecyl sulfonate; 12 parts of starch; 3 parts of stannous octoate; 2 parts of propylene glycol alginate; span801.5 parts; 0.5 part of epoxy chloropropane.
The preparation method comprises the following steps:
adding 2,4-D octyl grease into a container, slowly adding triclopyr while stirring, finally adding auxiliary gelatin and sodium octadecyl sulfonate, fully mixing, bottling, and sealing to obtain a mixture A;
mixing starch and water, wherein the mass volume ratio of the starch to the water is 1: 15g/mL, heating for gelatinization at 75 ℃ for 6min, cooling to room temperature, adjusting pH to 9, and uniformly mixing with Span80 to obtain a starch emulsification system;
mixing stannous octoate, propylene glycol alginate and epichlorohydrin, adding the mixture into a starch emulsification system, stirring for reaction, wherein the stirring reaction temperature is 35 ℃, the reaction time is 2min, carrying out centrifugal separation, drying a lower-layer solid product, crushing the product to a particle size of 50 microns, and packaging to obtain a mixture B.
Example 5
The embodiment provides a compound preparation for preventing and killing radix euphorbiae lantu, which comprises the following components in parts by weight, 40 parts of 2,4-D octyl ester; 20 parts of triclopyr; 1 part of gelatin; 1.2 parts of sodium octadecyl sulfonate; 10 parts of starch; 4 parts of stannous octoate; 1 part of propylene glycol alginate; 602 portions of Span; 0.3 part of epoxy chloropropane.
The preparation method comprises the following steps:
adding 2,4-D octyl grease into a container, slowly adding triclopyr while stirring, finally adding auxiliary gelatin and sodium octadecyl sulfonate, fully mixing, bottling, and sealing to obtain a mixture A;
mixing starch and water, wherein the mass volume ratio of the starch to the water is 1: heating to gelatinize at the temperature of 80 ℃ for 3min to room temperature at the concentration of 5g/mL, adjusting the pH value to 10, and uniformly mixing with an emulsifier to obtain a starch emulsifying system;
mixing stannous octoate, propylene glycol alginate and epichlorohydrin, adding the mixture into a starch emulsification system, stirring for reaction, wherein the stirring reaction temperature is 30 ℃, the reaction time is 3min, carrying out centrifugal separation, drying a lower-layer solid product, crushing the product to 20 microns in particle size, and packaging to obtain a mixture B.
Example 6
The embodiment provides a compound preparation for preventing and killing radix euphorbiae lantu, which comprises the following components in parts by weight, 35 parts of 2,4-D octyl ester; 20 parts of triclopyr; 1 part of gelatin; 1.2 parts of sodium octadecyl sulfonate; 13 parts of starch; 3.5 parts of stannous octoate; 2.5 parts of propylene glycol alginate; span801.5 parts; 0.6 part of epoxy chloropropane.
The preparation method comprises the following steps:
adding 2,4-D octyl grease into a container, slowly adding triclopyr while stirring, finally adding auxiliary gelatin and sodium octadecyl sulfonate, fully mixing, bottling, and sealing to obtain a mixture A;
mixing starch and water, wherein the mass volume ratio of the starch to the water is 1: 16g/mL, heating for gelatinization at 78 ℃ for 9min, cooling to room temperature, adjusting pH to 10, and uniformly mixing with an emulsifier to obtain a starch emulsification system;
mixing stannous octoate, propylene glycol alginate and epichlorohydrin, adding the mixture into a starch emulsification system, stirring for reaction, wherein the stirring reaction temperature is 35 ℃, the reaction time is 2min, carrying out centrifugal separation, drying a lower-layer solid product, crushing the product to 40 microns in particle size, and packaging to obtain a mixture B.
Example 7
The embodiment provides a compound preparation for preventing and killing radix euphorbiae lantu, which comprises the following components in parts by weight, 38 parts of 2,4-D octyl ester; 15 parts of triclopyr; 1 part of gelatin; 1.2 parts of sodium octadecyl sulfonate; 15 parts of starch; 2 parts of stannous octoate; 3 parts of propylene glycol alginate; 601 parts of Span; 0.8 part of epoxy chloropropane.
The preparation method comprises the following steps:
adding 2,4-D octyl grease into a container, slowly adding triclopyr while stirring, finally adding auxiliary gelatin and sodium octadecyl sulfonate, fully mixing, bottling, and sealing to obtain a mixture A;
mixing starch and water, wherein the mass volume ratio of the starch to the water is 1: heating to gelatinize at 20g/mL, wherein the gelatinizing temperature is 70 ℃, cooling to room temperature for 12min, adjusting the pH to 8, and then uniformly mixing with an emulsifier to obtain a starch emulsifying system;
mixing stannous octoate, propylene glycol alginate and epichlorohydrin, adding the mixture into a starch emulsification system, stirring for reaction, wherein the stirring reaction temperature is 45 ℃, the reaction time is 1min, carrying out centrifugal separation, drying a lower-layer solid product, crushing the product to a particle size of 60 microns, and packaging to obtain a mixture B.
Comparative example 1
The comparative example provides a radix euphorbiae lantu prevention and control compound preparation, which comprises the following components in parts by weight, 30 parts of 2,4-D butyl ester; 25 parts of triclopyr; 0.5 part of gelatin; and 2 parts of sodium octadecyl sulfonate.
The preparation method comprises the following steps: adding 2,4-D butyl ester into a container, slowly adding triclopyr while stirring, finally adding auxiliary gelatin and sodium octadecyl sulfonate, fully mixing, bottling, and sealing to obtain the product.
Comparative example 2
This comparative example provides a langdu prevention and control compound preparation having the same composition as in example 4 except that propylene glycol alginate is not contained.
Comparative example 3
This comparative example provides a compound preparation for controlling langdu having the same composition as in example 4 except that the starch was not subjected to the heat gelatinization step.
Comparative example 4
This comparative example provides a controlling stellera chamaejasme compounded preparation, which has the same composition as example 4 except that the stirring reaction time is 10 min.
Practical application case
The compound preparation of the invention in the examples 1-7 and the comparative examples 1-4 is subjected to a control test on a natural grassland with serious langdu harm in Guinan county, Hainan, Qinghai in 2013, and stem and leaf spraying treatment is carried out from the bud stage to the initial flowering stage of the langdu, wherein the sprayer is an oriental red ultra-low-volume sprayer with model of WFB-18 AC. The dosage is 0.4kg/hm2. The spraying method comprises the following steps: diluting the mixture A to 1L with water, adding the mixture B, stirring uniformly, spraying to the leaf surface with spraying height of 0.5 m, spraying width of 2m, and step speed of 1 m/s. The statistical control effect, the specific results are shown in table 1:
TABLE 1 controlling effect of the respective combinations
The compound preparation for preventing and killing the radix euphorbiae lantu provided by the invention reacts two hours after spraying, the radix euphorbiae lantu begins to wilt, the death rate of each area is investigated after 100 days of spraying, and the overall control effect is over 95 percent by calculation except for the comparative example 2, wherein the control effect of the examples 4 and 6 can reach 98 percent, and the control effect of the comparative example 2 is 90 percent.
As can be seen from the data in the table, the compound preparations provided by the embodiments 4 to 7 of the invention start to die after being applied for 3 days, and the green-turning rate in the second year is lower than 1%. The analysis of the soil residue and the plant residue in the application area after the tenth day shows that the residue of each component of the compound preparation provided by the embodiments 4 to 7 in the soil and the residue in the soil are all reduced to be lower than the national standard within 15 days, and the residue is not detected in most areas. According to the data of the comparative examples 3 to 4, in the preparation method of the anti-euphorbia fischeri compound preparation provided by the invention, the heating gelatinization treatment step and the stirring reaction condition are strictly screened, and the non-gelatinization treatment and the too long stirring reaction time can cause the starch microspheres to be compact and hard, influence the stannous octoate in the starch microspheres to play a role, and prolong the residual time of each component in soil and plants. The data of comparative example 2 show that the addition of propylene glycol alginate can promote the improvement of the control effect.
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 therefrom are within the scope of the invention.
Claims (9)
1. A compound preparation for preventing and killing radix euphorbiae lantu is characterized by comprising the following components in parts by weight,
30-50 parts of 2,4-D octyl ester;
5-25 parts of triclopyr;
0.5-2 parts of gelatin;
0.5-2 parts of sodium octadecyl sulfonate;
10-15 parts of starch;
2-4 parts of stannous octoate;
1-3 parts of propylene glycol alginate;
1-2 parts of an emulsifier;
0.3-0.8 part of epoxy chloropropane;
the preparation method of the radix euphorbiae lantu control compound preparation comprises the following steps:
uniformly mixing 2,4-D octyl ester with triclopyr, then uniformly mixing with gelatin and sodium octadecyl sulfonate, and packaging to obtain a mixture A;
mixing starch with water, heating for gelatinization, cooling to room temperature, adjusting pH to alkalinity, and mixing with emulsifier to obtain starch emulsion system;
mixing stannous octoate, propylene glycol alginate and epichlorohydrin, adding the mixture into a starch emulsification system, stirring for reaction, performing centrifugal separation, drying, crushing and packaging a lower-layer solid product.
2. The radix euphorbiae lantu-controlling compound preparation as claimed in claim 1, characterized in that the emulsifier is span series surfactant.
3. The radix euphorbiae ebracteolatae compound preparation for preventing and killing the radix euphorbiae ebracteolatae as claimed in claim 2, wherein the emulsifier is Span80 or Span 60.
4. The radix euphorbiae ebracteolatae controlling compound preparation as claimed in any one of claims 1-3, which is characterized by comprising the following components in parts by weight:
35-45 parts of 2,4-D octyl ester;
10-20 parts of triclopyr;
0.5-1.2 parts of gelatin;
0.8-1.5 parts of sodium octadecyl sulfonate;
10-13 parts of starch;
2.5-3.5 parts of stannous octoate;
1-3 parts of propylene glycol alginate;
1-2 parts of an emulsifier;
0.3-0.8 part of epoxy chloropropane.
5. The radix euphorbiae ebracteolatae controlling compound preparation as claimed in claim 4, wherein the temperature for heating and pasting is 70-80 ℃ and the time is 3-12 min.
6. The anti-euphorbia fischeri built preparation according to claim 4, characterized in that the mass-to-volume ratio of starch to water is 1: (5-20) g/mL.
7. The radix euphorbiae ebracteolatae controlling compound preparation as claimed in claim 4, wherein the stirring reaction temperature is 30-45 ℃ and the reaction time is 1-3 min.
8. The radix euphorbiae ebracteolatae controlling compound preparation as claimed in claim 4, wherein the particle size is 20-60 μm.
9. The use of the radix euphorbiae lantu-controlling compound preparation as claimed in any one of claims 2 to 8, characterized in that the application time is from bud period to initial flowering period of radix euphorbiae lantu, and the dosage is 0.25 to 0.5kg/hm2。
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|---|---|---|---|---|
| CN1338205A (en) * | 2001-07-18 | 2002-03-06 | 中国科学院寒区旱区环境与工程研究所 | Composite herbicide for fischer euphorbia and other broad-leaf weeds |
| CN101019534A (en) * | 2007-03-16 | 2007-08-22 | 青海省畜牧兽医科学院 | Recompounded Langdu preventing and killing herbicide |
| CN101077069A (en) * | 2006-05-26 | 2007-11-28 | 赵成章 | Herbicide suitable for radix euphorbiae ebracteolatae or other natural grassland broadleaf grass |
| CN102293207A (en) * | 2011-06-30 | 2011-12-28 | 樊胜岳 | Drug complex and its preparation method and use |
| CN103918655A (en) * | 2014-04-16 | 2014-07-16 | 青海绿原生物工程有限公司 | Compound herbicide for preventing and removing radix euphorbiae lantu and production process thereof |
-
2018
- 2018-11-07 CN CN201811322186.7A patent/CN111149803B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1338205A (en) * | 2001-07-18 | 2002-03-06 | 中国科学院寒区旱区环境与工程研究所 | Composite herbicide for fischer euphorbia and other broad-leaf weeds |
| CN101077069A (en) * | 2006-05-26 | 2007-11-28 | 赵成章 | Herbicide suitable for radix euphorbiae ebracteolatae or other natural grassland broadleaf grass |
| CN101019534A (en) * | 2007-03-16 | 2007-08-22 | 青海省畜牧兽医科学院 | Recompounded Langdu preventing and killing herbicide |
| CN102293207A (en) * | 2011-06-30 | 2011-12-28 | 樊胜岳 | Drug complex and its preparation method and use |
| CN103918655A (en) * | 2014-04-16 | 2014-07-16 | 青海绿原生物工程有限公司 | Compound herbicide for preventing and removing radix euphorbiae lantu and production process thereof |
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