CN109497052A - A kind of polysaccharide is used as the preparation process of agricultural-chemical suspension auxiliary agent - Google Patents

A kind of polysaccharide is used as the preparation process of agricultural-chemical suspension auxiliary agent Download PDF

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Publication number
CN109497052A
CN109497052A CN201811653259.0A CN201811653259A CN109497052A CN 109497052 A CN109497052 A CN 109497052A CN 201811653259 A CN201811653259 A CN 201811653259A CN 109497052 A CN109497052 A CN 109497052A
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agent
agricultural
polysaccharide
pesticide
chemical
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CN109497052B (en
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张靖
单俊伟
王海华
王鹏
台文静
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Qingdao Haida biological Group Co.,Ltd.
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QINGDAO SEAWIN BIOTECH GROUP Co Ltd
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N25/00Biocides, 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
    • A01N25/02Biocides, 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 liquids as carriers, diluents or solvents
    • A01N25/04Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N25/00Biocides, 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
    • A01N25/24Biocides, 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 to enhance the sticking of the active ingredients
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N43/00Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/48Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
    • A01N43/541,3-Diazines; Hydrogenated 1,3-diazines

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  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • Agronomy & Crop Science (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Toxicology (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention discloses the preparation process that a kind of polysaccharide is used as agricultural-chemical suspension agent aid, the composition and mass ratio of the agricultural-chemical suspension auxiliary agent are 3~5 parts of propylene glycol, 2~3 parts of thickener, 4~6 parts of wetting agent, 0.2~0.4 part of dispersing agent, 0.5~1.5 part of defoaming agent, 0.8~1.2 part of calcium salt.The auxiliary agent is suitable for all kinds of dosage form pesticides, with the adherency of enhancing medical fluid and wettability, increase pesticide spreading area, delay spray evaporation speed, reduce the effect of droplet drift, it can be improved pesticide control effect, reduce applications of pesticide cost, significantly green algae polysaccharide, which not only has, increases pesticide adhesion property, enhances the sustained release performance of pesticide, extends the pesticide efficacy time, and green algae polysaccharide has stronger bacteria resistance function activity, by the crosslinked action with xanthan gum, change the structure effect of pesticidal chemical, from the substantial drug effect for improving pesticide;The auxiliary agent has wide range of applications, and can be used cooperatively with the various farm chemical ingredients such as herbicide, insecticide, fungicide and plant growth regulator.

Description

A kind of polysaccharide is used as the preparation process of agricultural-chemical suspension auxiliary agent
Technical field
The invention belongs to formulations of pesticide manufacture fields, and in particular to a kind of polysaccharide is used as the preparation work of agricultural-chemical suspension agent aid Skill.
Background technique
Agricultural is the basis of national economy, and pesticide occupies an important position in agricultural development process, due to most of agriculture Medicine raw medicine cannot be applied directly, must be processed into pesticidal preparations just and can enter downstream farming, forestry, husbandary and fishing and health field etc..According to prevention and treatment Object, pesticidal preparations can be divided into insecticide, fungicide, herbicide etc.;According to processing dosage form, can be divided into wettable powder, missible oil, Emulsion, aqueous suspension agent, granule etc..In recent years, with the promotion of pesticide hazards problem and the environmental consciousness of people, traditional pesticide The dosage form that the drug effects such as preparation missible oil, wettable powder are low, environmental hazard is big is gradually used by country's limitation, safe and efficient, warp The high water baseization formulations of pesticide of Ji, Environmental compatibility and solidification sustained release agent type are more and more paid attention to.
The advantages that pesticide suspension concentrate is safe and efficient with its, production and application is convenient, Environmental compatibility is good, is increasingly becoming pesticide One of Developing mainstream of preparation.Aqueous suspension agent be under wetting dispersing agent and other promoter effects, will be not soluble in water or be insoluble in The raw medicine of water is evenly dispersed in water through soybean dietary fiber or coacervation, forms the multiphase that suspensibility is high, stability is good and slightly hangs Floating body system.
Seaweed is the low phototrophy plant being grown in ocean, is the original producer of marine organisms, contains land More than 40 mineral matter elements and the vitamins abundant such as the incomparable natural organic chelated potassium of ground plant, calcium, magnesium, zinc, iodine, Particularly with algal polysaccharides specific in seaweed, alginic acid, highly unsaturated fatty acid and a variety of natural plants growth regulatings Agent has very high bioactivity, can stimulate the generation of the nonspecific activity factor in plant, adjusts Endogenous hormone balance. Green alga, high protein, low fat, minerals are abundant, and polyoses content is up to 41.4%.Green algae polysaccharide can increase the suspension of pesticide Rate, moisture dispersibility, while plant growth can also be stimulated.Patented technology 2017104294671 discloses a kind of effective component For the sustained release agent of biogenic pesticide, effective component is sea grass polysaccharide and celery polyphenol, after celery polyphenol is compounded with sea grass polysaccharide With apparent synergistic effect, it is possible to reduce the dosage of effective component enhances the work of the prevention and treatment to watermelon grafting Have with, product quick, the lasting period is long, on non-target crops without the advantages such as influencing;Patented technology 201610597280.8 is public A kind of green and environment-friendly pesticide spray adjuvants composition has been opened, has mainly been made of natural edible glue and environment-friendly type surfactant, Middle natural edible glue includes: sodium alginate, agar, gelatin, pectin, xanthan gum, Arabic gum, furcellaran, bassora gum, locust bean Glue, carragheen, gellan, gellan gum, guar gum, konjaku glucomannan, curdlan, maltodextrin, linseed meal, swallow Flour, beet pulp, konjaku flour, guar bean flour etc..The prior art is analyzed, improving algal polysaccharides, especially green algae polysaccharide, (Enteromorpha is more Sugar) efficient application in biological pesticide is very necessary.Based on this, in view of the deficiencies of the prior art, the present invention provides one Kind preparation cost is low, environmental-friendly, facilitates plant growth, significantly improves the preparation work of the agricultural chemicals suspension agent of crop resistance Skill.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides the preparation process that a kind of polysaccharide is used as suspension aids, using with green Polysaccharides substitute the auxiliary agent of a part of agricultural chemicals suspension agent, by the functional activity of green algae polysaccharide, to enhance the wetting point of pesticide Property is dissipated, drug effect is improved, enhances crop resistance, promotion, which subtracts, applies synergy and green ecological agricultural development, while being resource utilization The new application approach of sea leave Resources development.
To achieve the above object, the present invention uses following technological means:
A kind of polysaccharide of the present invention is used as the preparation process of agricultural-chemical suspension agent aid, it is characterised in that the pesticide is outstanding Floating auxiliary agent include propylene glycol, thickener, wetting agent, dispersing agent, defoaming agent, calcium salt composition, wherein thickener be green algae polysaccharide and The mixture of xanthan gum, the mass ratio groups of above-mentioned raw materials become 3~5 parts of propylene glycol, 2~3 parts of thickener, 4~6 parts of wetting agent, 0.2~0.4 part of dispersing agent, 0.5~1.5 part of defoaming agent, 0.8~1.2 part of calcium salt.
Preferably, the mass ratio group of above-mentioned agricultural-chemical suspension auxiliary agent become 4 parts of propylene glycol, 2.5 parts of thickener, 5 parts of wetting agent, 0.2 part of dispersing agent, 1 part of defoaming agent, 1 part of calcium salt.
Above-mentioned thickener is the mixture of green algae polysaccharide and xanthan gum, and mass ratio group becomes 4:1;The preferred waterside of green algae polysaccharide Tongue fur polysaccharide, molecular weight control 3-5kDa.
The above-mentioned preferred SP-SC3240E of wetting agent, the preferred Sag1522 of dispersing agent, the preferred organosilicon of defoaming agent.
The present invention provides a kind of preparation process of the polysaccharide as agricultural-chemical suspension auxiliary agent, which is suitable for all kinds of dosage form agricultures Medicine has the adherency of enhancing medical fluid and wettability, increases pesticide spreading area, delays spray evaporation speed, reduces droplet drift Effect, can be improved pesticide control effect, reduce applications of pesticide cost, significantly green algae polysaccharide not only has increase Pesticide adhesion property enhances the sustained release performance of pesticide, extends the pesticide efficacy time, and green algae polysaccharide has stronger bacteria resistance function Activity changes the structure effect of pesticidal chemical by the crosslinked action with xanthan gum, from the substantial drug effect for improving pesticide;The auxiliary agent It has wide range of applications, can be used cooperatively with the various farm chemical ingredients such as herbicide, insecticide, fungicide and plant growth regulator.
The above-mentioned preferred pesticidal chemical of agricultural-chemical suspension auxiliary agent is Fluoxastrobin, and the agricultural-chemical suspension auxiliary agent is in Fluoxastrobin pesticide Dosage be 10~15%.
The present invention also provides preparation process of the above-mentioned agricultural-chemical suspension auxiliary agent in Fluoxastrobin pesticide, specific preparation processes Are as follows:
(1) propylene glycol, dispersing agent are successively added into high-speed shearing machine, 10-30 points are stirred at 1000-1500r/min Clock, is added Fluoxastrobin later, and with water dissolved material, adds wetting agent, continue shearing dispersion, obtain mixed liquor;
(2) mixed liquor is transferred in grinder, is ground to partial size≤5 μm;
(3) algal polysaccharides, xanthan gum, defoaming agent, calcium salt are added into mixed liquor to be uniformly mixed, is then adjusted to mesh with water Concentration is marked, agricultural chemicals suspension agent is obtained.
Above-mentioned green algae polysaccharide is made into 10% green algae polysaccharide aqueous solution in advance when in use, and xanthan gum is matched in advance when in use At 1% xanthan gum solution.
Compared with prior art, the present invention it is advantageous that:
(1) the present invention provides the preparation process that a kind of polysaccharide is used as agricultural-chemical suspension auxiliary agent, it is more that green alga is added in product The raw materials such as sugar and xanthan gum, have good bioavilability and compatibility, Product Green, environmental protection;Avoid organosilicon and nitrogen Bring allergy risk is excessively used in ketone auxiliary agent;
(2) green algae polysaccharide (sea grass polysaccharide) is used for pesticide as auxiliary agent by the present invention, not only increases pesticide adhesion property, is increased The sustained release performance of strong pesticide extends the pesticide efficacy time, and green algae polysaccharide has stronger bacteria resistance function activity, by with xanthan The crosslinked action of glue changes the structure effect of pesticidal chemical, from the substantial drug effect for improving pesticide.
(3) seaweed has been expanded in the invention, the especially application in biological pesticide such as ocean waste object Enteromorpha, The sea grass polysaccharide for exploring 3-5kDa molecular weight can be obviously improved the drug effect of Fluoxastrobin pesticide, the experimental results showed that changing Enteromorpha Pesticide efficacy can be significantly reduced after the molecular weight of polysaccharide, analysis reason may be because the sea grass polysaccharide of high molecular weight can increase The adhesion property of pesticide, the sea grass polysaccharide bacteria resistance function and permeability of low molecular weight are more excellent, thus the selection of molecular weight is especially heavy It wants, this technical essential of very good solution of the present invention, green algae polysaccharide and xanthan gum collaboration is used, can play sea grass polysaccharide Adhesiveness and slow release, and the functionality of sea grass polysaccharide itself can be played;
(4) auxiliary agent of the present invention has wide range of applications, can be with herbicide, insecticide, fungicide and plant growth regulator etc. Various farm chemical ingredients are used cooperatively;
(5) Pesticide use amount can be reduced using the auxiliary agent, saves Pesticide use cost, especially subtracts and apply high price pesticide economy Remarkable benefit.
Specific embodiment
The technical scheme of the present invention will be explained in further detail With reference to embodiment.
Embodiment 1
The preparation of 20% Fluoxastrobin suspending agent, specifically includes the following steps:
(1) Fluoxastrobin raw medicine (content 98%) 23.2g, propylene glycol 4g, SP-SC3240E 5g, Sag1522 are accurately weighed 0.2g, xanthan gum 0.5g, green algae polysaccharide 2g, calcium salt 1g, organosilicon 1g;The green alga that polysaccharides are made into 10% in advance when in use is more Sugar aqueous solution, xanthan gum are made into 1% xanthan gum solution in advance when in use;
(2) propylene glycol, dispersing agent are successively added into high-speed shearing machine, 10-30 points are stirred at 1000-1500r/min Clock, is added Fluoxastrobin later, and with water dissolved material, adds wetting agent, continue shearing dispersion, obtain mixed liquor;
(3) mixed liquor is transferred in grinder, is ground to partial size≤5 μm;
(4) algal polysaccharides, xanthan gum, defoaming agent, calcium salt are added into mixed liquor to be uniformly mixed, is then adjusted to water 100g obtains 20% Fluoxastrobin suspending agent.
Embodiment 2
The preparation of 30% Fluoxastrobin suspending agent, specifically includes the following steps:
(1) Fluoxastrobin raw medicine (content 98%) 34.2g, propylene glycol 4g, SP-SC3240E 6g, Sag1522 are accurately weighed 0.2g, xanthan gum 0.5g, green algae polysaccharide 2g, calcium salt 1g, organosilicon 1g;The green alga that polysaccharides are made into 10% in advance when in use is more Sugar aqueous solution, xanthan gum are made into 1% xanthan gum solution in advance when in use;
(2) propylene glycol, dispersing agent are successively added into high-speed shearing machine, 10-30 points are stirred at 1000-1500r/min Clock, is added Fluoxastrobin later, and with water dissolved material, adds wetting agent, continue shearing dispersion, obtain mixed liquor;
(3) mixed liquor is transferred in grinder, is ground to partial size≤5 μm;
(4) algal polysaccharides, xanthan gum, defoaming agent, calcium salt are added into mixed liquor to be uniformly mixed, is then adjusted to water 100g obtains 30% Fluoxastrobin suspending agent.
3 Fluoxastrobin pesticide control apple tree scab pharmacodynamic test of embodiment
1, test process: this test sets 4 test groups, wherein testing 1 group sprays pesticide described in embodiment 1;2 groups of test group Spraying pesticide formula be Fluoxastrobin raw medicine (content 98%) 23.2g, propylene glycol 4g, SP-SC3240E 5g, Sag1522 0.2g, Green algae polysaccharide 2.5g, calcium salt 1g, organosilicon 1g, preparation process is the same as embodiment 1;Testing 3 groups of spraying pesticide formulas is that Fluoxastrobin is former It is medicine (content 98%) 23.2g, propylene glycol 4g, SP-SC3240E 5g, Sag1522 0.2g, xanthan gum 2.5g, calcium salt 1g, organic Silicon 1g, preparation process is the same as embodiment 1;Testing 4 groups of spraying pesticide formulas is Fluoxastrobin raw medicine (content 98%) 23.2g, propylene glycol 4g, SP-SC3240E 5g, Sag1522 0.2g, calcium salt 1g, organosilicon 1g, preparation process is the same as embodiment 1;Contrast groups are 20% Fluoxastrobin suspension, no auxiliary agent;The amount of spraying is 5g/ mus of Fluoxastrobin effective component;
2, test method: test selection carries out in the serious apple orchard of apple tree scab over the years, and test is each hanked age Fruit tree is no less than 5, is repeated 4 times.Investigation method and evaluating drug effect are carried out by GB/T 17980.24-2000;
3, test result is as follows:
1 Fluoxastrobin pesticide control apple tree scab pharmacodynamic test result of table
As seen from the above table, the application agricultural-chemical suspension auxiliary agent can be obviously improved efficacy of agricultural chemical, especially thickener (green alga is more Sugar, xanthan gum) there is significant synergistic function to Fluoxastrobin pesticide control apple tree and scab.
The above examples are only used to illustrate the technical scheme of the present invention, rather than is limited;Although referring to aforementioned reality It applies example to be described in detail to by invention, but for those of ordinary skill in the art, it still can be to aforementioned reality Technical solution documented by example is applied to modify or equivalent replacement of some of the technical features;And to these modifications Or replacement, the spirit and scope for claimed technical solution of the invention that it does not separate the essence of the corresponding technical solution.

Claims (9)

1. the preparation process that a kind of polysaccharide is used as agricultural-chemical suspension agent aid, it is characterised in that the agricultural-chemical suspension auxiliary agent includes the third two Alcohol, thickener, wetting agent, dispersing agent, defoaming agent, calcium salt composition, wherein thickener is the mixture of green algae polysaccharide and xanthan gum, The mass ratio group of above-mentioned raw materials becomes 3~5 parts of propylene glycol, 2~3 parts of thickener, 4~6 parts of wetting agent, dispersing agent 0.2~0.4 Part, 0.5~1.5 part of defoaming agent, 0.8~1.2 part of calcium salt.
2. the preparation process that a kind of polysaccharide according to claim 1 is used as agricultural-chemical suspension agent aid, it is characterised in that described The mass ratio group of agricultural-chemical suspension auxiliary agent becomes 4 parts of propylene glycol, 2.5 parts of thickener, 5 parts of wetting agent, 0.2 part of dispersing agent, defoaming agent 1 Part, 1 part of calcium salt.
3. the preparation process that a kind of polysaccharide according to claim 1 to 2 is used as agricultural-chemical suspension agent aid, it is characterised in that institute The mixture that thickener is green algae polysaccharide and xanthan gum is stated, mass ratio group becomes 4:1;The preferred sea grass polysaccharide of green algae polysaccharide, point Son amount control 3-5kDa.
4. the preparation process that a kind of polysaccharide according to claim 1 to 2 is used as agricultural-chemical suspension agent aid, it is characterised in that institute State the preferred SP-SC3240E of wetting agent, the preferred Sag1522 of dispersing agent, the preferred organosilicon of defoaming agent.
5. the preparation process that a kind of polysaccharide according to claim 1 to 2 is used as agricultural-chemical suspension agent aid, it is characterised in that institute Stating the preferred pesticidal chemical of agricultural-chemical suspension auxiliary agent is Fluoxastrobin, and dosage of the agricultural-chemical suspension auxiliary agent in Fluoxastrobin pesticide is 10 ~15%.
6. the preparation process that a kind of polysaccharide according to claim 1 to 2 is used as agricultural-chemical suspension agent aid, it is characterised in that institute Preparation process is stated to specifically include:
(1) propylene glycol, dispersing agent are successively added into high-speed shearing machine, is stirred 10-30 minutes at 1000-1500r/min, it After be added Fluoxastrobin, and with water dissolved material, add wetting agent, continue shearing dispersion, obtain mixed liquor;
(2) mixed liquor is transferred in grinder, is ground to partial size≤5 μm;
(3) algal polysaccharides, xanthan gum, defoaming agent, calcium salt are added into mixed liquor to be uniformly mixed, is then adjusted to target rich with water Degree, obtains agricultural chemicals suspension agent.
7. the preparation process that a kind of polysaccharide according to claim 6 is used as agricultural-chemical suspension agent aid, it is characterised in that described Green algae polysaccharide is made into 10% green algae polysaccharide aqueous solution in advance when in use, and xanthan gum is made into 1% xanthan gum in advance when in use Aqueous solution.
8. by the agricultural-chemical suspension agent aid of the preparation of technique described in claim 1-7.
9. the application of agricultural-chemical suspension agent aid described in claim 8.
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CN111838166A (en) * 2020-06-10 2020-10-30 青岛海大生物集团有限公司 Preparation method and application of chlorella polysaccharide bactericide compound
CN112741088A (en) * 2020-12-18 2021-05-04 青岛中达农业科技有限公司 Trifloxystrobin tebuconazole compound suspension pesticide fertilizer containing seaweed enzymatic hydrolysate and application thereof
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CN111838166A (en) * 2020-06-10 2020-10-30 青岛海大生物集团有限公司 Preparation method and application of chlorella polysaccharide bactericide compound
CN111820212A (en) * 2020-07-28 2020-10-27 南京轩凯生物科技有限公司 Application of microbial polysaccharide as pesticide synergist in pesticide
CN112741088A (en) * 2020-12-18 2021-05-04 青岛中达农业科技有限公司 Trifloxystrobin tebuconazole compound suspension pesticide fertilizer containing seaweed enzymatic hydrolysate and application thereof
CN114868739A (en) * 2022-04-25 2022-08-09 江苏省农业科学院 Special auxiliary agent for improving prevention and treatment effects of root irrigation and pesticide application, and preparation method and use method thereof
CN114868739B (en) * 2022-04-25 2023-08-25 江苏省农业科学院 Special auxiliary agent for improving root irrigation and pesticide application control effects, and preparation method and use method thereof

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