CN109020712A - Slow-release fertilizer granules and preparation method thereof - Google Patents
Slow-release fertilizer granules and preparation method thereof Download PDFInfo
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- CN109020712A CN109020712A CN201811107296.1A CN201811107296A CN109020712A CN 109020712 A CN109020712 A CN 109020712A CN 201811107296 A CN201811107296 A CN 201811107296A CN 109020712 A CN109020712 A CN 109020712A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea 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
- 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
- A01N25/12—Powders or granules
-
- 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
-
- 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
- A01N53/00—Biocides, pest repellants or attractants, or plant growth regulators containing cyclopropane carboxylic acids or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
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- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Health & Medical Sciences (AREA)
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- Organic Chemistry (AREA)
- Plant Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Engineering & Computer Science (AREA)
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- Environmental Sciences (AREA)
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Abstract
The invention belongs to field of pesticide preparation, more particularly to a kind of preparation method of slow-release fertilizer granules, the group composition and quality percentage of the slow-release fertilizer granules are as follows: pesticide 0.1%~5%, polyureas 0.002%~0.3%, emulsifying dispersant 0.012%~0.75%, fertiliser granulates carrier supply 100.0%；Pesticide is the mixing of one or both of lambda-cyhalothrin, cyfloxylate and pyraclostrobin.The invention proposes it is a kind of it is reliable and stable, production cost is low, control efficiency is good, while providing the slow-release fertilizer granules and preparation method thereof of nutritional ingredient to crop.
Description
Technical field
The invention belongs to field of pesticide preparation more particularly to a kind of preparation methods of slow-release fertilizer granules.
Background technique
For a long time, an important factor for subterranean pest-insect and soil-borne disease are puzzlement agricultural production sustainable growths, because of its generation
Seriously, difficulty of prevention and cure is big for hidden, harm, is commonly called as " difficult worm " and " difficult disease ".In recent years, greatly developing with industrialized agriculture, ground
Lower disease pest harm is on the rise, and often results in the disconnected ridge that is short of seedling, large area dead seedling, or even total crop failure total crop failure.Most subterranean pest-insects are such as old
Tiger, grub, mole cricket, wireworm, root maggot, root aphid etc. have more stable ecological environment, and life cycle is long, in spring, two season of autumn shape
At hazard boom.Main soil-borne disease has a dust-brand, damping-off, samping off, base rot disease etc., the seed for crop of mainly causing harm,
Underground part and subaerial rhizome portion.
The pyrethroid insecticides such as lambda-cyhalothrin, cyfloxylate belong to low toxicity, highly effective pesticide, have stronger
Tag and stomach poison function, is the insecticide of a kind of ideal prevention and treatment subterranean pest-insect, but pyrethroid insecticides are to human body
Skin has more serious anaphylaxis.Pyraclostrobin is a kind of less toxic, efficient methoxy acrylic bactericide, is had
Treatment, the bactericidal effect protected, while the plant health effect for also having and delaying senescence, enlarge afforested area, there is very plant soil-borne diseases
Good preventive and therapeutic action.But these two types of pesticides are in conventional pesticides systems such as missible oil, microemulsion, suspending agent, water dispersible granules
In agent, the pesticide activity component after application in preparation is easy degradation failure because being directly exposed in environment, causes biological utilisation
Rate is low, and drug effect retention period is short, cannot give full play to control efficiency.
To reach more permanent control efficiency, contact toxicity and anaphylaxis when Pesticidal products use, existing skill are reduced
Usually pesticide activity object is dissolved in organic solvent in art and is adsorbed on inert carrier, being further prepared into has certain delay
Release the granular pesticide of effect.107980774 A of Chinese patent CN discloses a kind of using resin, pitch, vegetable oil or insoluble
In water polymer as thin-film material, be coated on granular pesticide surface and obtain pesticide slow-release particle.Chinese patent CN
102100229 A disclose a kind of be directly spray-dried microcapsule suspensions and are prepared into pesticide micro-capsule granules and its preparation side
Method.A kind of method of the preparation of controlled release fertilizer granules provided by Chinese invention patent CN 104211529 is that pesticide is living
Property object be dissolved in solvent, be coated on carbamide resin formation cyst wall in be prepared into microencapsulation of pesticide, using polyvinyl alcohol or I
Primary glue mixes with the other components containing fertilizer as sustained release agent and is prepared into controlled release fertilizer granules.
What the one side prior art delayed control release type granular pesticide or fertilizer granules contains organic solvent, raw to farmland
State environment has adverse effect, and the slow control release type granular pesticide group composition and preparation process of the another aspect prior art are complicated,
Sustained release agent is recycled to be prepared into sustained-release granular formulation after pesticide is prepared into pesticide micro capsule.
Summary of the invention
Present invention aims at provide a kind of slow-release fertilizer granules and preparation method thereof, to overcome in the prior art
Contain organic solvent, many and diverse technical problem of the group composition and preparation process of granule, the present invention in slow-release fertilizer granules
A kind of more easy-to-use fertilizer granules and preparation method thereof, through the invention provided by preparation method be prepared
Slow-release fertilizer granules it is reliable and stable, production cost is low, and control efficiency is good, at the same give crop provide nutritional ingredient.
For achieving the above object, one aspect of the present invention provides a kind of slow-release fertilizer granules, group composition and matter
Measure percentage are as follows: pesticide 0.1%~5%, polyureas 0.002%~0.3%, emulsifying dispersant 0.012%~0.75%, fertiliser granulates
Carrier supplies 100%.
Pesticide in the slow-release fertilizer granules is in lambda-cyhalothrin, cyfloxylate and pyraclostrobin
One or two kinds of mixtures；The polyureas is that polymethylene multi-phenenyl isocyanate and aminated compounds polymerization reaction generate
Polyureas polymer substance；The emulsifying dispersant is the mixture of one or both of lignosulfonates, polycarboxylate；
Fertiliser granulates carrier is humic acid particle, urea granules, ammonium phosphate granules, phosphoric acid k particle, potassium sulfate in the granule
The particle of the mixture of one or more of particle, potassium chloride particle.
Another aspect of the present invention provides a kind of preparation method of slow-release fertilizer granules, including following two step:
The preparation of step 1) pesticidal emulsion:
It is prepared into oily phase by being uniformly mixed after pesticide heating melting with polymethylene multi-phenenyl isocyanate, by emulsion dispersion
Agent, which is dissolved in the water, is prepared into water phase；The water phase and the oil are mutually mixed into shear treatment, forming average grain diameter is 0.5 μm
~12.0 μm of O/W type lotion.
The preparation of step 2) slow-release medicine fertilizer particle:
O/W type lotion obtained by step 1) is uniformly mixed in barrel mixer with fertiliser granulates, is slowly added to polynary
Amine aqueous solution is uniformly mixed, and is blown into Hot-blast Heating and polymerization reaction formation polyurea coating film occurs, then vacuum sloughs moisture to obtain the final product
Slow-release fertilizer granules of the present invention.
Pesticide described in step 1) is one or both of lambda-cyhalothrin, cyfloxylate and pyraclostrobin
Mixture, emulsifying dispersant are the mixture of one or both of sodium lignin sulfonate, polycarboxylate, or Arabic
Replaced the high molecular surfactants such as glue, gelatin, carboxymethyl cellulose salt；Polymethylene multi-phenenyl isocyanate can be gathered
Close methyl diphenylene diisocyanate, polymerization isophorone diisocyanate, polymerization 4,4'- dicyclohexyl methyl hydride diisocyanate
Deng replaced.
Fertiliser granulates described in step 2) are humic acid particle, urea granules, ammonium phosphate granules, phosphoric acid k particle, sulphur
The particle of the mixture of one or more of sour k particle, potassium chloride particle, or other contain a great number of elements,
Middle microelement, biostimulant fertiliser granulates substituted；Polyamine be ethylenediamine, propane diamine, oneself two press, diethylenetriamine
Or triethylene tetramine, it is also possible to the mixture of two kinds and two or more polyamines.
The lambda-cyhalothrin can be 4 pairs along any one in 4 kinds of efficient isomers in anti-racemic isomer
Kind or two kinds and two or more efficient isomer arbitrary proportions mixture, be also possible at least one efficient isomer with
The mixture of the arbitrary proportion of the inefficient isomers of 1-4 kind；The cyfloxylate can be two kinds in 2 pairs of cis-trans-isomers
The mixture of the arbitrary proportion of any one or two kinds of efficient isomers in efficient isomer, be also possible to it is at least one efficiently
The mixture of the arbitrary proportion of isomers and one or two kinds of inefficient isomers；The pyraclostrobin can be four kinds of differences
Crystal form form, the mixing of the arbitrary proportion of any one or 2-4 kind crystal form in crystal form 1, crystal form 2, crystal form 3 and crystal form 4
Object.Lambda-cyhalothrin, cyfloxylate and the pyraclostrobin can also die like a rat tick, phoxim, pyrethrins, different evil
Pesticide of other fusing points such as careless pine, pendimethalin, S-metolachlor, Acetochlor, pretilachlor lower than 80 DEG C is substituted.
The invention has the advantages that
Compared with prior art, slow-release fertilizer granules provided by the present invention have good slow release, can be significant
Bioavailability is improved, desinsection, the bactericidal effect of pesticide activity component are given full play to, improves the control efficiency to underground disease pest.
Without any organic solvent, the group composition and preparation process of granule are easy, and production cost is low, it is easier to realize industrial metaplasia
It produces.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, present invention following specific embodiments
It is illustrated, without constituting limiting the scope of the invention.Test method used in embodiment, if being without specified otherwise
Conventional method.Preparation method and applications range and the user of preparation are illustrated the present invention below by way of multiple embodiments
Formula.
1 5% gamma cyhalothrin granule preparation of embodiment
The mass percentage of 5% gamma cyhalothrin granule: gamma cyhalothrin (97.0%) is
5.156%, polyureas 0.148%, emulsifying dispersant 0.75%, fulvic acid particle supplies 100%.
Preparation step is as follows:
The preparation of 60% gamma cyhalothrin lotion of step 1)
By 61.9g gamma cyhalothrin (97.0%) heating melting, 1.3g MR-200 (polymethylene polyphenyl is added
Isocyanates) be uniformly mixed be prepared into oily phase；By 6.0g Borresperse NA (lignosulfonates), 3.0g Agrilan
700 (polycarboxylates), which are dissolved in 27.8g water, is prepared into water phase；Oil, which is added into water phase mixing shearing to average grain diameter, is
The O/W type lotion of 0.5 μm~12.0 μm of 60% lambda-cyhalothrin, oil phase and solid matter content 72.2%.
The preparation of 5% gamma cyhalothrin granule of step 2)
939.4g fulvic acid particle is added in the barrel mixer of laboratory, opens roller, is slowly added to step 1) institute
The O/W type lotion 83.3g of 60% gamma cyhalothrin is obtained, keeps rollers roll that lotion is made to be uniformly distributed in fulvic acid particle table
Face；It is slowly added to 10% diethylenetriamine aqueous solution 4.0g, it is empty to be blown into 60 DEG C ± 5 DEG C of heat up to being uniformly mixed for progressive rolling movement
Gas heating occurs polymerization reaction and forms polyurea coating film, vacuumizes and sloughs moisture up to slow-release fertilizer granules (5% of the present invention
Gamma cyhalothrin granule).
2 2.5% betacyfluthrin granule preparation of embodiment
The mass percentage of 2.5% betacyfluthrin granule: betacyfluthrin (97.1%) is
2.575%, polyureas 0.085%, emulsifying dispersant 0.125%, urea granules supply 100%.
Preparation step is as follows:
The preparation of 50% betacyfluthrin lotion of step 1)
By 51.5g betacyfluthrin (97.1%) heating melting, 1.0g MR-200 (polymethylene polyphenyl is added
Isocyanates) be uniformly mixed be prepared into oily phase；By 2.0gReax 88B (lignosulfonates) and 0.5g Tersperse 2700
(polycarboxylate), which is dissolved in 45.0g water, is prepared into water phase；It is 0.5 μm that oil, which is added into water phase mixing shearing to average grain diameter,
The O/W type lotion of~12.0 μm of 50% gamma cyhalothrin, oil phase and solid matter content 55.0%.
2.5% betacyfluthrin granule preparation of step 2)
972.2g urea granules are added in the barrel mixer of laboratory, open roller, are slowly added to obtained by step 1)
The O/W type lotion 50.0g of 50% betacyfluthrin keeps rollers roll that lotion is made to be uniformly distributed in urea granules surface；
It is slowly added to 10% triethylene tetramine aqueous solution 3.5g, progressive rolling movement is blown into 70 DEG C ± 5 DEG C of hot-air up to being uniformly mixed
Heating occurs polymerization reaction and forms polyurea coating film, vacuumizes and sloughs moisture up to slow-release fertilizer granules (2.5% of the present invention
Betacyfluthrin granule).
3 0.1% pyraclostrobin granule preparation of embodiment
The mass percentage of 0.1% pyraclostrobin granule: pyraclostrobin (98.1%) is 0.102%, polyureas
It is 0.002%, emulsifying dispersant 0.012%, diammonium hydrogen phosphate particle supplies 100%.
Preparation step is as follows:
The preparation of 40% pyraclostrobin lotion of step 1)
By 40.8g pyraclostrobin (98.1%) heating melting, 0.6g Mondur MRS (polymethylene polyphenyl is added
Isocyanates) be uniformly mixed be prepared into oily phase；4.8g SMA 520 (polycarboxylate) is dissolved in 53.8g water and is prepared into water phase；
Oil is added into water phase to the O/W type cream for 40% pyraclostrobin that mixing shearing to average grain diameter is 0.5 μm~12.0 μm
Liquid, oil phase and solid matter content 46.2%.
0.1% pyraclostrobin granule preparation of step 2)
998.8g diammonium hydrogen phosphate particle is added in the barrel mixer of laboratory, opens roller, is slowly added to step
1) the O/W type lotion 2.5g of 40% pyraclostrobin of gained, keeps rollers roll that lotion is made to be uniformly distributed in diammonium hydrogen phosphate
Grain surface；It is slowly added to 0.5% propane diamine aqueous solution 1.0g, it is empty to be blown into 50 DEG C ± 5 DEG C of heat up to being uniformly mixed for progressive rolling movement
Gas heating occurs polymerization reaction and forms polyurea coating film, vacuumizes and sloughs moisture up to slow-release fertilizer granules of the present invention
(0.1% pyraclostrobin granule).
The preparation of embodiment 4 1.0% pyraclostrobin cyfloxylate (1:4) granule
The mass percentage of 1.0% pyraclostrobin cyfloxylate (1:4) granule: pyraclostrobin
It (98.1%) is 0.204%, cyfloxylate (95.0%) is 0.842%, polyureas 0.089%, and emulsifying dispersant is
0.067%, (mass ratio of potassium chloride and urea supplies 100% for the particle of 1:1) for potassium chloride and urea admixture.
Preparation step is as follows:
The preparation of step 1) 30% pyraclostrobin cyfloxylate (1:4) lotion
6.1g pyraclostrobin (98.1%) is uniformly mixed with 25.3g cyfloxylate (95.0%) heating melting, is added
Enter 2.2g Mondur MRS (polymethylene multi-phenenyl isocyanate) be uniformly mixed be prepared into oily phase；By 2.0g Reax 100M
(lignosulfonates), which are dissolved in 64.4g water, is prepared into water phase；Oil, which is added into water phase mixing shearing to average grain diameter, is
The O/W type lotion of 0.5 μm~12.0 μm of 30% pyraclostrobin cyfloxylate (1:4), oil phase and solid matter content
35.6%.
The preparation of step 2) 1.0% pyraclostrobin cyfloxylate (1:4) granule
987.9g potassium chloride and the urea admixture (quality of potassium chloride and urea are added in the barrel mixer of laboratory
Than the particle for 1:1), roller is opened, is slowly added to the cream of 30% pyraclostrobin cyfloxylate (1:4) obtained by step 1)
Liquid 33.4g, the particle surface for keeping rollers roll that lotion is made to be uniformly distributed in potassium chloride and urea admixture；It is slowly added to 5%
Ethylenediamine solution 3.1g, progressive rolling movement are blown into 80 DEG C ± 5 DEG C of hot air and polymerization reaction occur up to being uniformly mixed
Polyurea coating film is formed, vacuumizes and sloughs moisture up to slow-release fertilizer granules of the present invention (1.0% pyraclostrobin fluorine chlorine
Cyano chrysanthemate (1:4) granule).
Embodiment 5 3.0% pyraclostrobin lambda-cyhalothrin (1:9) granule preparation
The mass percentage of 3.0% pyraclostrobin lambda-cyhalothrin (1:9) granule: pyraclostrobin
It (98.1%) is 0.306%, lambda-cyhalothrin (97.0%) is 2.784%, polyureas 0.154%, and emulsifying dispersant is
0.36%, granular potassium sulfate supplies 100%.
Preparation step is as follows:
The preparation of step 1) 50% pyraclostrobin lambda-cyhalothrin (1:9) lotion
5.1g pyraclostrobin (98.1%) is uniformly mixed with 46.4g lambda-cyhalothrin (97.0%) heating melting, is added
Enter 1.8g MR-200 (polymethylene multi-phenenyl isocyanate) be uniformly mixed be prepared into oily phase；By 6.0g Borresperse NA
(lignosulfonates), which are dissolved in 40.7g water, is prepared into water phase；Oil, which is added into water phase mixing shearing to average grain diameter, is
The O/W type lotion of 0.5 μm~12.0 μm of 30% pyraclostrobin lambda-cyhalothrin (1:4), oil phase and solid matter content
59.3%.
The preparation of step 2) 3.0% pyraclostrobin lambda-cyhalothrin (1:9) granule
964.0g granular potassium sulfate is added in the barrel mixer of laboratory, opens roller, is slowly added to step 1) institute
50% pyraclostrobin lambda-cyhalothrin (1:9) lotion 60.0g is obtained, keeps rollers roll that lotion is made to be uniformly distributed in potassium sulfate
Particle surface；It is slowly added to 20% hexamethylene diamine aqueous solution 2.3g, progressive rolling movement is blown into 90 DEG C ± 5 DEG C of heat up to being uniformly mixed
Air heating occurs polymerization reaction and forms polyurea coating film, vacuumizes and sloughs moisture up to slow-release fertilizer granules of the present invention
(3.0% pyraclostrobin lambda-cyhalothrin (1:9) granule).
Embodiment 6 4.0% cyfloxylate lambda-cyhalothrin (1:1) granule preparation
The mass percentage of 4.0% cyfloxylate lambda-cyhalothrin (1:1) granule: cyfloxylate
It (95.0%) is 2.105%, lambda-cyhalothrin (97.0%) is 2.062%, polyureas 0.3%, emulsifying dispersant 0.12%,
The mixture (mass ratio of phosphoric acid k particle and urea granules is 1:1) of phosphoric acid k particle and urea granules supplies 100%.
Preparation step is as follows:
The preparation of step 1) 50% cyfloxylate lambda-cyhalothrin (1:1) lotion
26.3g cyfloxylate (95.0%) is uniformly mixed with 25.8g lambda-cyhalothrin (97.0%) heating melting, is added
Enter 2.6g PM-200 (polymethylene multi-phenenyl isocyanate) be uniformly mixed be prepared into oily phase；By 6.0g SP-3936, (25% is poly-
Carboxylic acid salt solution) it is dissolved in 39.3g water and is prepared into water phase；Oil, which is added into water phase mixing shearing to average grain diameter, is
The O/W type lotion of 0.5 μm~12.0 μm of 50% cyfloxylate lambda-cyhalothrin (1:1), oil phase and solid matter content
56.2%.
The preparation of step 2) 4.0% cyfloxylate lambda-cyhalothrin (1:1) granule
Mixture (the potassium phosphate of 954.1g phosphoric acid k particle and urea granules is added in the barrel mixer of laboratory
The mass ratio of grain and urea granules is 1:1), roller is opened, 50% cyfloxylate chlorine fluorine cyanogen obtained by step 1) is slowly added to
Pyrethroids (1:1) lotion 80.0g, the surface for keeping rollers roll that lotion is made to be uniformly distributed in phosphoric acid k particle and urea granules；It is slow
Slow that 20% triethylene tetramine aqueous solution 4.6g is added, progressive rolling movement is blown into 40 DEG C ± 5 DEG C of hot air up to being uniformly mixed
Polymerization reaction occurs and forms polyurea coating film, vacuumizes and sloughs moisture up to slow-release fertilizer granules of the present invention (4.0% fluorine chlorine
Cyano chrysanthemate lambda-cyhalothrin (1:1) granule).
Illustrate below by way of field control effectiveness test, compared with prior art, slow-release fertilizer granules of the present invention have good
Good slow release, is remarkably improved bioavailability, gives full play to desinsection, the bactericidal effect of pesticide activity component, improves over the ground
The control efficiency of lower disease pest.Table 1 is corn field underground insect pest preventing and controlling testing program, and the test main soil-borne disease of field has root rot
With the black powder of tumor, main subterranean pest-insect has cutworm and wireworm, and insecticide-applying way, which is that sowing time pharmacopoeia is same, to be broadcast.Testing medicament used is
The embodiment of the present invention 1, embodiment 2, embodiment 3, embodiment 4, embodiment 5 and embodiment 6 provide, and test comparison medicament used
CK1, CK2, CK3, CK4, CK5, CK6 are slow-release fertilizer granules (the organic solvent dissolution prepared using art methods
Pesticide, carrier granular absorption the pesticide solution, the preparation of the method for high molecular slow-release agent coating), pesticide activity contained by comparison medicament
Ingredient and carrier fertilizer particle and pesticide activity component contained by corresponding embodiment and carrier fertilizer particle are identical.
The slow-release fertilizer granules field trial scheme of the present invention of table 1
15 days control efficiency after the slow-release fertilizer granules medicine of the present invention of table 2
30 days control efficiency after the slow-release fertilizer granules medicine of the present invention of table 3
Referring to the People's Republic of China (PRC) " pesticide field efficacy medicine test criterion " method, crop varieties phase is chosen respectively
Together, fertilizer and water management and underground disease pest a situation arises almost the same corn field, marks off different processing cells, every processing is all provided with
Blank control.It is administered by 1 testing program of table, 15 days, 30 days and 60 days each treatment region diseases of difference investigation statistics after medicine
A situation arises with insect pest, the control efficiency of preparation 15 days control efficiency and comparison medicament after medicine obtained by the embodiment of the present invention
Without significant difference, but after medicine, 60 days control efficiency are significantly better than the control efficiency of comparison medicament after 30 days and medicine, are detailed in
Table 2, table 3 and table 4.Relative to comparison medicament, there is good sustained release using slow-release fertilizer granules provided by the present invention
Property (by taking embodiment 5 as an example, 15 days control efficiency 95% (control efficiency 93.7% of CK5) to cutworm after medicine, 30 days after medicine
To the control efficiency 85.5% (control efficiency 63.3% of CK5) of cutworm, 60 days control efficiency to cutworm after medicine
60.1% (control efficiency 5.4% of CK5), slow releasing function is clearly), it is remarkably improved bioavailability, gives full play to agriculture
The desinsection of medicine active constituent, bactericidal effect improve the control efficiency to underground disease pest.
60 days control efficiency after the slow-release fertilizer granules medicine of the present invention of table 4
。
Claims (5)
1. a kind of slow-release fertilizer granules, it is characterised in that: the composition and quality percentage of the slow-release fertilizer granules are as follows:
Pesticide 0.1%~5%, polyureas 0.002%~0.3%, emulsifying dispersant 0.012%~0.75%, fertiliser granulates carrier are supplied
100%；The pesticide is the mixing of one or both of lambda-cyhalothrin, cyfloxylate and pyraclostrobin.
2. slow-release fertilizer granules according to claim 1, it is characterised in that: the polyureas is polymethylene polyphenyl
Isocyanates and aminated compounds polymerization reaction generate polyureas polymer substance；The emulsifying dispersant be lignosulfonates,
The mixing of one or both of polycarboxylate；The fertiliser granulates carrier is humic acid particle, urea granules, ammonium phosphate
The mixing of one or more of grain, phosphoric acid k particle, granular potassium sulfate, potassium chloride particle.
3. a kind of preparation method of slow-release fertilizer granules, it is characterised in that: the preparation side of the slow-release fertilizer granules
Method the following steps are included:
1) preparation of pesticidal emulsion:
It is prepared into oily phase by being uniformly mixed after pesticide heating melting with polymethylene multi-phenenyl isocyanate, emulsifying dispersant is molten
Water phase is prepared into Xie Yushui；By the water phase and it is described oil mutually through mix shear treatment, is formed average grain diameter for 0.5 μm~
12.0 μm of O/W type lotion；
2) preparation of slow-release medicine fertilizer particle:
The O/W type pesticidal emulsion that step 1) is prepared is uniformly mixed in barrel mixer with fertiliser granulates, is slowly added
Enter polynary amine aqueous solution, be uniformly mixed, is blown into Hot-blast Heating and polymerization reaction formation polyurea coating film occurs, then vacuum sloughs water
Divide up to slow-release fertilizer granules.
4. the preparation method of slow-release fertilizer granules according to claim 3, it is characterised in that: in the step 1)
Pesticide is the mixing of one or both of lambda-cyhalothrin, cyfloxylate and pyraclostrobin；The emulsifying dispersant
It is the mixing of one or both of lignosulfonates and polycarboxylate.
5. the preparation method of slow-release fertilizer granules according to claim 3, it is characterised in that: fertile in the step 2)
Material particulate vector be humic acid particle, urea granules, ammonium phosphate granules, phosphoric acid k particle, granular potassium sulfate, in potassium chloride particle
One or more kinds of mixing；The polyamine is ethylenediamine, propane diamine, oneself is two by, diethylenetriamine or triethylene four
Amine.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102100229A (en) * | 2009-12-16 | 2011-06-22 | 联合国南通农药剂型开发中心 | Pesticide micro-capsule granules and preparation method thereof |
| US20110301036A1 (en) * | 2010-06-07 | 2011-12-08 | Dow Agrosciences Llc | Microcapsule suspensions including high levels of agriculturally active ingredients |
| CN104211529A (en) * | 2014-08-26 | 2014-12-17 | 广东中迅农科股份有限公司 | Controlled-release pesticide fertilizer granules |
| CN104855403A (en) * | 2015-06-11 | 2015-08-26 | 河南远见农业科技有限公司 | Non-organic-solvent type pyraclostrobin micro-capsule suspending agent and preparation method thereof |
| CN105076188A (en) * | 2014-05-21 | 2015-11-25 | 南通联农农药制剂研究开发有限公司 | High-efficiency cyhalothrin microcapsule suspension and preparation method thereof |
-
2018
- 2018-09-21 CN CN201811107296.1A patent/CN109020712A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102100229A (en) * | 2009-12-16 | 2011-06-22 | 联合国南通农药剂型开发中心 | Pesticide micro-capsule granules and preparation method thereof |
| US20110301036A1 (en) * | 2010-06-07 | 2011-12-08 | Dow Agrosciences Llc | Microcapsule suspensions including high levels of agriculturally active ingredients |
| CN105076188A (en) * | 2014-05-21 | 2015-11-25 | 南通联农农药制剂研究开发有限公司 | High-efficiency cyhalothrin microcapsule suspension and preparation method thereof |
| CN104211529A (en) * | 2014-08-26 | 2014-12-17 | 广东中迅农科股份有限公司 | Controlled-release pesticide fertilizer granules |
| CN104855403A (en) * | 2015-06-11 | 2015-08-26 | 河南远见农业科技有限公司 | Non-organic-solvent type pyraclostrobin micro-capsule suspending agent and preparation method thereof |
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