CN110959611A - Synergism method for solid pesticide preparation and synergist adopted by same - Google Patents
Synergism method for solid pesticide preparation and synergist adopted by same Download PDFInfo
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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
- A01N25/22—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 ingredients stabilising the active ingredients
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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
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/10—Aromatic or araliphatic carboxylic acids, or thio analogues thereof; 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
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/42—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing within the same carbon skeleton a carboxylic group or a thio analogue, or a derivative thereof, and a carbon atom having only two bonds to hetero atoms with at the most one bond to halogen, e.g. keto-carboxylic acids
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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
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/44—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids
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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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/647—Triazoles; Hydrogenated triazoles
- A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
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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
- A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
- A01N47/12—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing a —O—CO—N< group, or a thio analogue thereof, neither directly attached to a ring nor the nitrogen atom being a member of a heterocyclic ring
- A01N47/14—Di-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
- 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
- A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
- A01N47/24—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing the groups, or; 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
- 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
- A01N47/40—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 a double or triple bond to nitrogen, e.g. cyanates, cyanamides
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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
- A01N51/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds having the sequences of atoms O—N—S, X—O—S, N—N—S, O—N—N or O-halogen, regardless of the number of bonds each atom has and with no atom of these sequences forming part of a heterocyclic ring
Abstract
The invention provides a synergistic method for a solid pesticide preparation and a synergist adopted by the same. The synergist is synergistic powder prepared by grinding 5-aminolevulinic acid and sucrose. The synergist is added before the solid pesticide preparation is formed, and then the solid pesticide preparation with the required dosage form is prepared according to the conventional forming process. The inventor of the invention tries to develop a novel pesticide synergistic technology from the perspective of plants, so as to reduce the production cost of pesticides; through screening, the effective pesticide preparation synergistic component consisting of the 5-aminolevulinic acid and the sucrose is adopted, the physiological activities of plant stomata, respiration, assimilate substance transportation and the like are regulated, the effective absorption of the plant to the pesticide preparation is promoted, and the using effect of the pesticide is improved.
Description
Technical Field
The invention belongs to the field of pesticides, and particularly relates to a synergistic method for a solid pesticide preparation and a synergist adopted by the synergistic method.
Background
The pesticide application reduction and efficiency improvement technology is an extremely important part in the field of plant protection, and particularly achieves the purpose of efficiency improvement by improving the utilization rate of pesticides under the conditions that new pesticides are difficult to develop and the resistance of pests is gradually increased.
Both dicotyledonous plants and gramineous plants consist of three parts, namely epidermis, mesophyll and veins. Among these, the nature of the epidermis is a major concern for the agrichemical workers. The epidermis consists of epidermal cells, stomatal organs, epidermal hairs, heterocytes, etc. The epidermis is usually also covered by a waxy cuticle, of which lipids are the main constituents. Due to the existence of the cuticle, the absorption efficiency of the pesticide to the plants is greatly reduced after the pesticide is sprayed on the surfaces of the leaves. The passage of the pesticide through the stratum corneum is a process of diffusion. Surfactants can alter the penetration properties of the plant cuticle and increase the ability of the pesticide to penetrate through the cuticle.
At present, the industrialization means for realizing the pesticide synergism is mainly completed by adding surfactants, and products with improved pesticide fog drop permeability and adhesive force are screened out by combining and processing thousands of surfactants; on the other hand, in the case of a solid pesticide preparation, the pesticide preparation is processed into finer particles without impairing the stability thereof to improve the dispersibility thereof in water, thereby achieving a synergistic effect of the pesticide. No matter what method is adopted, the contact absorption of the pesticide and crops is improved, and the method is the primary consideration of the pesticide synergistic technology in the processing process.
The problem we have in fact faced is that the pesticidal products made by adding surfactants with a synergistic action during the production of the products are not accepted by the market because of their considerably higher price than the same products. Therefore, the ingredients with synergistic effect are separately processed into pesticide adjuvants and sold separately from common pesticide preparation products. But inevitably, the adopted formulas of different products and different enterprises are different, and the pesticide synergistic additive has the risk of damaging the stability of the original preparation due to the loss of stability tests of the formulas before the preparation is formed. In addition, the requirement on equipment is very high when the fineness of the pesticide preparation is improved, and the improvement on the pesticide synergism is limited.
5-aminolevulinic acid (ALA) is a hydrocarbon containing oxygen and nitrogen, has a molecular formula of C5O3NH9 and a molecular weight of 131.2, is a precursor substance synthesized by tetrapyrrole compounds such as chlorophyll, heme, porphyrin, vitamin B12 and the like in organisms, and is widely present in animal, plant and microbial cells. ALA is used as a novel plant growth regulator, can promote the growth of plants, increase the yield of the plants, mainly participate in the photosynthesis of the plants, promote the biosynthesis of chlorophyll, improve the stability of a light capturing system II and the chlorophyll and promote the improvement of the photosynthetic efficiency; initiating a plant cell peroxidation reaction; affecting the respiration of the plant; promoting the differentiation of plant tissues and the transportation in organisms; improving the stress resistance of the plants, and the like.
Disclosure of Invention
One of the objects of the present invention is to provide a synergist for solid pesticide formulations.
The synergist for the solid pesticide preparation provided by the invention is synergistic powder prepared by grinding 5-aminolevulinic acid and cane sugar;
wherein, the mass ratio of the 5-aminolevulinic acid to the sucrose can be: 1: 1-1: 100, respectively; specifically, the ratio of 1: 1-1: 50. 1:1, 1:50, 1:10, 1:4, or 3: 14.
The synergistic powder can further comprise a filler acceptable in pesticides;
the filler can be kaolin, ammonium sulfate and the like.
Another object of the present invention is to provide a synergistic technique for solid pesticide formulations.
The synergistic technology provided by the invention is suitable for the following pesticide components:
1) a pesticidal component having an insecticidal activity and having a stomach-poisoning action;
2) pesticide components with the functions of internal absorption and conduction and having the weeding activity or the bactericidal activity;
3) a pesticide component having systemic property and plant growth regulating activity;
by systemic conduction or systemic is meant that the agent can be absorbed into the body by animals or plants;
the pesticide composition specifically comprises the following components: one or a mixture of more of acetamiprid, imidacloprid, paclobutrazol, prohexadione calcium, naphthylacetic acid, pyraclostrobin and metiram.
The invention provides a synergistic technology for a solid pesticide preparation, which comprises the following steps:
the synergist is added before the solid pesticide preparation is formed, and then the solid pesticide preparation with the required dosage form is prepared according to the conventional forming process.
The pesticide components are processed into solid preparations according to different physical and chemical properties, but the dosage forms and the method are similar, and the synergistic powder can be added in one step or two steps before the dosage forms are formed in the processing process.
As the synergistic components in the invention, the 5-ALA and the sucrose are both solid, are easy to dissolve in water, have stable chemical properties, and have almost no influence on the processing technology and the stability of the solid pesticide preparation when the solid dosage form is prepared. However, considering that sucrose is easily decomposed into glucose and fructose during heating, wet granulation should be avoided when processing solid pesticide formulations involving granulation.
When the pesticide preparation is prepared, the use amount of the 5-aminolevulinic acid and the sucrose is related to the property of the pesticide and the field use amount, and the concentration of the 5-aminolevulinic acid in a diluent (the diluent is the diluent after the solid pesticide preparation is diluted to a specified concentration when the pesticide preparation is applied in the field) can be 1-100 ppm; the concentration of sucrose in the dilution may be 1-10000 ppm.
When the wettable powder needs to be prepared, the metered raw medicines, the dispersing agent, the wetting agent, the carrier and the like are mixed and crushed, and then the synergistic powder is added to continue mixing and crushing to prepare the wettable powder.
When the soluble powder needs to be prepared, the measured raw medicines, the filler, the auxiliary agent and other components are mixed and crushed, and then the synergistic powder is added to be continuously mixed and crushed to prepare the soluble powder.
When the soluble granule needs to be prepared, the components such as the metered original medicine, the filler, the auxiliary agent and the like can be mixed and crushed, the synergistic powder is added for continuous mixing and crushing, and the adhesive is added for granulation to prepare the soluble granule.
When the water dispersible granule needs to be prepared, the water dispersible granule can be prepared by mixing and crushing the metered raw medicine, the dispersing agent, the wetting agent, the filler, the disintegrating agent, the adhesive, the synergistic powder and the like and then extruding and granulating the mixture.
When the effervescent granule needs to be prepared, the metered raw medicine, the dispersing agent, the wetting agent, the binding agent, the carrier, the synergistic powder and the like are mixed and crushed, then are divided into two parts in equal proportion, the acidic effervescent agent and the alkaline effervescent agent are respectively added to obtain acid granules and alkaline granules, the acid granules and the alkaline granules are dried, the lubricating agent is added, and the mixture is mixed and granulated to obtain the effervescent granule.
When the effervescent tablet needs to be prepared, the metered raw medicine, the dispersing agent, the wetting agent, the binding agent, the carrier and other components are mixed and crushed, and then are divided into two parts in equal proportion, the synergistic powder is added into the part to be mixed with the acidic effervescent agent, the acidic effervescent agent and the alkaline effervescent agent are respectively added to obtain acid granules and alkaline granules, and the acid granules and the alkaline granules are mixed, kneaded and tableted after the lubricant is added after the acid granules and the alkaline granules are dried.
Solid pesticide formulations containing the above synergist also fall within the scope of the present invention.
The application of the composition of the 5-aminolevulinic acid and the sucrose in the synergism of the pesticide ingredients also belongs to the protection scope of the invention.
Stomata occupy only a very small part of plant leaves (about 0.3-1.2% of the surface area of plant leaves), but have a special structure, the lower stomatal cavity (under-stomatal chamber), which is composed of part of the intercellular spaces of the palisade tissue, and has a membrane surface area much larger than the caliber of the stomata, which is the physiological basis of stomata as the main mode of water and gas exchange of plants. The lower cavities of the air holes do not have horny layers and secondary cell walls like leaves, the resistance outside the membrane is far smaller than the surface layers of the leaves, and the wide membrane area of the lower cavities of the air holes provides possibility for improving the material exchange rate no matter hydrophilic pesticides enter the cells through a water molecule transportation way or lipophilic pesticides diffuse through phospholipid bilayers through lipid solubility.
The inventor of the invention tries to develop a novel pesticide synergistic technology from the aspect of the characteristic of plants, and reduces the production cost of pesticides; through screening, the effective pesticide preparation synergistic component consisting of the 5-aminolevulinic acid and the sucrose is adopted, the physiological activities of plant stomata, respiration, assimilate substance transportation and the like are regulated, the effective absorption of the plant to the pesticide preparation is promoted, and the using effect of the pesticide is improved.
Non-patent citations: MR McAinsh and JE Taylor. stomata [ B ]. Encyclopedia of applied Plant Sciences (Second Edition), Volume 1,2017, Pages 128-.
Detailed Description
The present invention will be described below with reference to specific examples, but the present invention is not limited thereto.
The experimental methods used in the following examples are all conventional methods unless otherwise specified; reagents, materials and the like used in the following examples are commercially available unless otherwise specified.
Example 1, preparation of 15% wettable powder of paclobutrazol
0.75g of 6-aminolevulinic acid, 37.5g of sucrose and 100g of kaolin are complemented, mixed and crushed to obtain synergistic powder; 150g of paclobutrazol, 60g of wetting dispersant DT-882, 40g of white carbon black and kaolin which are complemented to 900g are mixed and crushed, 100g of synergistic powder is added for secondary mixing and crushing to obtain 15% paclobutrazol wettable powder.
Example 2 preparation of 25% acetamiprid soluble powder
Mixing and crushing 20g of 6-aminolevulinic acid and 80g of cane sugar to obtain synergistic powder; 250g of acetamiprid, 15g of white carbon black, 60g of penetrant DT-80 and ammonium sulfate are complemented to 900g, mixed and crushed, and then 100g of synergistic powder is added for secondary mixing and crushing to obtain 25% acetamiprid soluble powder.
Example 3 preparation of 25% Imidacloprid soluble granules
15g of 6-aminolevulinic acid, 70g of sucrose and 100g of ammonium sulfate are complemented, mixed and crushed to obtain synergistic powder; 250g of imidacloprid, 50g of dispersant D-425(Morwet), 20g of wetting agent EFW (Morwet), 20g of sodium sulfate and ammonium sulfate are mixed and crushed after complementing 880g, 100g of synergistic powder and 20g of sodium dodecyl benzene sulfonate are added, mixed and crushed, kneaded and granulated to obtain the 25 percent imidacloprid soluble granule.
Example 4, 60% pyraclostrobin-metiram water dispersible granule
15g of 6-aminolevulinic acid, 70g of sucrose and 100g of ammonium sulfate are complemented, mixed and crushed to obtain synergistic powder; 550g of metiram, 50g of pyraclostrobin, 20g of wetting agent 1004(terwet), 100g of dispersing agent D425(Morwet), 50g of dispersing agent 2700(tersperse), 50g of sodium sulfate and kaolin, supplementing 900g of the mixture, crushing the mixture by using air flow, adding 100g of synergistic powder, uniformly mixing the mixture, and granulating and drying the mixture according to a fluidized bed granulation method to obtain the 60% pyraclostrobin-metiram water dispersible granule.
EXAMPLE 5 preparation of 5% prohexadione calcium effervescent granule
15g of 6-aminolevulinic acid, 70g of sucrose and 100g of ammonium sulfate are complemented, mixed and crushed to obtain synergistic powder; 50g of prohexadione calcium, 20g of sodium dodecyl benzene sulfonate, 20g of naphthalene sulfonate, 60g of dextrin, 100g of synergistic powder and anhydrous sodium sulfate to complement the balance, mixing and crushing, then dividing into two parts in equal ratio, mixing and crushing with 100g of citric acid and 100g of sodium bicarbonate respectively, mixing and granulating to obtain the 5% prohexadione calcium effervescent granule.
EXAMPLE 6 preparation of 10% Naphthylacetic acid effervescent tablet
15g of 6-aminolevulinic acid, 70g of sucrose and 100g of ammonium sulfate are complemented, mixed and crushed to obtain synergistic powder; 100g of naphthylacetic acid, lauryl sodium sulfate, methylene dinaphthalene sodium sulfonate, synergistic powder and anhydrous sodium sulfate are complemented for the rest, mixed and crushed, then divided into two parts in equal proportion, respectively mixed and crushed with 145g of citric acid and 165g of sodium bicarbonate, mixed and granulated to prepare the 10 percent naphthylacetic acid effervescent tablet.
The synergistic effect of 5-aminolevulinic acid and sucrose is verified by taking the inhibition effect of a gibberellin synthesis inhibitor prohexadione calcium on plant height as a pharmacodynamic index.
Experiment one: synergistic experiment of 5-aminolevulinic acid and sucrose
1. Test conditions
And (3) test crops: a sunflower; variety 363. The plant height is 120-150 cm; the soil is flat and the field is convenient to irrigate. The cultivation conditions of the test fields are consistent, and the watering and fertilizing are unified. The row spacing of the films is 45cm, the row spacing between the films is 70cm, the plant spacing is 60cm, and the ridges are arranged in the north and south directions. The north and south directions are ridged.
Test site: the inner Mongolia autonomous region is in Shanghai Shanlan image Kezhen.
2. Design and arrangement of experiments
According to the method for preparing the prohexadione calcium effervescent granules in the embodiment 5, the 5 percent prohexadione calcium effervescent granules required by the experiment are prepared according to the following component proportion.
And (3) test cell: cell area 32m2Three replicates of each treatment were performed.
The application method comprises the following steps: the application method of stem and leaf spray is adopted. The operation was carried out using a 15L electric-powered knapsack sprayer.
3. Test investigation method
In the harvest period of the sunflowers, 4 points are randomly selected in each cell, the plant height of 5 sunflowers is continuously investigated at each point, and the average inhibition rate is calculated. Whether the growth phase is advanced or delayed compared to a placebo. Checking whether the pesticide has phytotoxicity on crops, and recording the type and the degree of the phytotoxicity. In addition, beneficial effects on the crop were noted.
4. Results and analysis
Plant height inhibition tests show that after 5-ALA and sucrose are added, the inhibition effect of prohexadione calcium on the plant height of the sunflower is obviously enhanced; when the content of the 5-ALA is fixed, the plant height inhibition effect is more and more obvious along with the increase of the addition amount of the sucrose; the drug effect of the prohexadione calcium is obviously improved along with the increase of the content of the 5-ALA in the system; of these treatments, the effect of treatment 11 is most pronounced. The single use of 5-ALA and sucrose has no influence on plant dwarfing, which shows that the 5-ALA and sucrose effectively promote the utilization of prohexadione calcium by plants and improve the drug effect.
Experiment two: peanut synergism experiment
In order to verify the actual use effect of the pesticide preparation containing the synergist, the inventor takes the 15% paclobutrazol wettable powder prepared in example 1 and the 5% prohexadione calcium effervescent granule prepared in example 5 as examples to carry out a field test on synergistic technical products.
1. Test conditions
And (3) test crops: peanut;
test site: yellow county in Anyang city.
2. Design and arrangement of experiments
Test agents: the prepared 15% paclobutrazol wettable powder, 5% prohexadione calcium effervescent granules, and the commercially normally prepared 15% paclobutrazol wettable powder and 5% prohexadione calcium effervescent granules.
And (3) test treatment:
| processing code | Treatment agent | Formulation amount (g/mu) |
| BCK | Blank control (clear water) | — |
| B1 | 5% prohexadione calcium effervescent granule (commercially available) | 80 |
| B2 | 15% paclobutrazol wettable powder (commercially available) | 40 |
| B3 | 5% prohexadione calcium effervescent granule (test) | 80 |
| B4 | 15% paclobutrazol wettable powder (test) | 40 |
And (3) test cell: the area of the cell is 40 square meters, and each treatment is repeated for three times.
The test method comprises the following steps: the spraying method is adopted. The shouldering sprayer uses 15L of water per mu of land, and is used in the peanut pod expansion period, and is applied in the afternoon.
1. Investigation method
Surveying the peanut before fructification, sampling at 4 random points in each cell, randomly taking one meter of double rows in each point, surveying the number of single pods, the number of double pods and the plant number, measuring the plant height, the weight of the single pod and the weight of the double pods, and calculating the yield and the yield increase rate.
Whether the growth phase is advanced or delayed compared to a placebo. Checking whether the pesticide has phytotoxicity on crops, and recording the type and the degree of the phytotoxicity. In addition, beneficial effects on the crop were noted.
2. Results and analysis
Considering that the actual dosage of the farmland is generally the maximum value of the recommended dosage of the pesticide label, 80% of the recommended value is selected as the test dosage, so that the effect of reducing the application and increasing the efficiency of the pesticide is evaluated. From the aspect of inhibiting the plant height, the inhibiting effect of each treatment on the plant height is over 10 percent, the performance of the test medicament is superior to that of a conventional medicament group, no obvious rule exists on the influence on the yield, and the difference is not obvious. Experiments show that the experimental medicament plays a role in promoting the absorption of effective components to a certain extent.
Claims (9)
1. A synergist for solid agricultural chemical is a synergistic powder prepared from 5-aminolevulinic acid and cane sugar through grinding.
2. The enhancer of claim 1, wherein: the mass ratio of the 5-aminolevulinic acid to the sucrose is as follows: 1: 1-1: 100.
3. a method for potentiating a solid pesticidal formulation comprising the steps of:
the synergist of claim 1 or 2 is added before the solid pesticide preparation is formed, and then the solid pesticide preparation with the required dosage form is prepared according to a conventional forming process.
4. The synergy method according to claim 3, characterized in that: the pesticide component of the solid pesticide preparation is at least one of the following 1) to 3):
1) a pesticidal component having an insecticidal activity and having a stomach-poisoning action;
2) pesticide components with the functions of internal absorption and conduction and having the weeding activity or the bactericidal activity;
3) a pesticide component with systemic property and plant growth regulating activity.
5. A solid pesticidal formulation comprising the synergist of claim 1 or 2.
6. The solid pesticidal formulation according to claim 6, characterized in that: the solid pesticide preparation can be prepared into various dosage forms, and the dosage forms comprise: wettable powder, soluble granules, water dispersible granules, effervescent tablets and effervescent tablets.
7. The solid pesticidal formulation according to claim 6 or 7, characterized in that: when the pesticide preparation is prepared, the concentration of the 5-aminolevulinic acid in the diluent is 1-100 ppm; the concentration of sucrose in the diluent is 1-10000ppm, wherein the diluent refers to the diluent after the solid pesticide preparation is diluted to the specified concentration when applied in the field.
8.5-aminolevulinic acid and sucrose in the synergism of pesticide ingredients.
9. Use according to claim 8, characterized in that: the mass ratio of the 5-aminolevulinic acid to the sucrose is as follows: 1: 1-1: 100.
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