Summary of the invention
The present inventor obtains a kind of agricultural chemicals used for unmanned plane by creative work, uses the unmanned plane single active ingredient useful load of this agricultural chemicals large, decreases the number of times of landing dosing repeatedly.Field irrigation water spray coordinates unmanned plane applying pesticides, and the outer field water-solubility membrane of this agricultural chemicals dissolves damaged, and internal drug outwards penetrates, and the medicine dissolving of injection in water, thus completes the dispenser to crops.By means of the jet power after pesticide water soluble film of the present invention breakage, unmanned plane only need get final product onset to the some input agricultural chemicals within the scope of farmland, without the need to carrying out large area sprinkling, improves efficiency.And can introduce microorganism or its metabolite in gel combination of the present invention as biopesticide, gel-type vehicle is that the normal growth of microorganism or the activity of microbial metabolic products keep condition of providing convenience.
A first aspect of the present invention relates to a kind of agricultural chemicals used for unmanned plane, comprising: water-solubility membrane, gas and gel combination; Described water-solubility membrane forms the utricule of sealing, and described gel combination and gas are filled in described utricule, and the air pressure inside of described utricule is greater than external pressure.
For coordinating pesticide application, spray in forward and backward or process at unmanned plane and irrigation water spray is carried out to farmland, after unmanned plane discharges out agricultural chemicals of the present invention, the outer field water-solubility membrane contact wetting of agricultural chemicals dissolves damaged, capsule substance in vivo is sprayed to surrounding by breakage, carry out with injection, gel combination dissolved dilution, in water, finally completes the dispenser operation to crops.
In an embodiment of first aspect present invention, at 5 DEG C-35 DEG C, air pressure inside >=0.15MPa, >=0.18MPa of described utricule, >=0.20MPa, >=0.22MPa, >=0.25MPa, >=0.30MPa, >=0.34MPa, >=0.40MPa or >=0.45MPa, such as 0.15MPa, 0.18MPa, 0.20MPa, 0.24MPa, 0.25MPa, 0.32MPa, 0.34MPa, 0.40MPa or 0.45MPa; Preferable temperature is 10 DEG C-35 DEG C.
Those skilled in the art know, utricule external pressure is standard atmospheric pressure, namely 1.01325 × 10
5pa.
In an embodiment of first aspect present invention, preferably, at 0 DEG C-35 DEG C, air pressure inside≤1.0MPa ,≤0.9MPa of described utricule ,≤0.8MPa ,≤0.7MPa ,≤0.6MPa or≤0.5MPa, such as 1.0MPa, 0.9MPa, 0.85MPa, 0.8MPa, 0.75MPa, 0.7MPa, 0.65MPa, 0.6MPa, 0.55MPa or 0.5MPa; Preferable temperature is 0 DEG C-5 DEG C, 5 DEG C-35 DEG C or 10 DEG C-35 DEG C.
Under the low temperature of 0 DEG C-5 DEG C, in utricule, pressure is compared normal temperature and is reduced further, and agricultural chemicals more easily remains stable in preservation process.
In an embodiment of first aspect present invention, the tensile strength of described water-solubility membrane is at more than 3MPa, such as >=3.0MPa, >=3.5MPa, >=4.2MPa, >=4.5MPa, >=5.0MPa, be preferably 3.0MPa, 3.5MPa, 3.7MPa, 4.0MPa, 4.5MPa, 5.0MPa, 5.5MPa or 6.0MPa.
The tensile strength of water-solubility membrane of the present invention can ensure that agricultural chemicals water-solubility membrane in preservation process not easily breaks, capsule drug disposition is not easily revealed, and keeps the stability of agricultural chemicals.
In an embodiment of first aspect present invention, after water-solubility membrane dissolves breakage, the distance that the material in described utricule outwards sprays is 3-18 rice; Be preferably 3-10 rice, 5-10 rice, 3-5 rice, 8-15 rice or 10-18 rice, be more preferably 3 meters, 4 meters, 5 meters, 6 meters, 7 meters, 8 meters, 9 meters, 10 meters, 11 meters, 12 meters, 13 meters, 14 meters, 15 meters, 16 meters, 17 meters or 18 meters.
In an embodiment of first aspect present invention, the thickness of described water soluble film is 500 μm-1500 μm; Be preferably 500-800 μm, 700-1000 μm, 800-1200 μm, 900-1500 μm, be more preferably 500 μm, 550 μm, 600 μm, 670 μm, 700 μm, 750 μm, 800 μm, 900 μm, 1000 μm, 1100 μm, 1200 μm, 1300 μm, 1500 μm.
The thickness of water-solubility membrane is unsuitable blocked up or excessively thin, crosses the not soluble breakage of excellent pay and conditions water, crosses thin easily pressure-rupturable in preservation process.
In an embodiment of first aspect present invention, the principal component of described water-solubility membrane is polyvinyl alcohol; Preferably, described water-solubility membrane also comprises one or more in plasticizer, disintegrant and wetting agent.
The interpolation of wetting agent makes water-solubility membrane more easily contact with hydrone.
In an embodiment of first aspect present invention, described gel combination comprises active component and gel-type vehicle; Preferably, described active component is selected from microorganism, microbial metabolic products and chemical pesticide; More preferably, described gel combination also comprises water absorbing agent.
The interpolation of water absorbing agent makes gel combination more easily absorb water in course of injection, dissolves.
Described gel combination can adopt common gel combination preparation method.Such as, gel material adds water and stirs and be heated to dissolve, and evaporation and concentration, to 50-70% (w/w), optionally adds water absorbing agent mixing, add microorganism, microbial metabolic products or chemical pesticide mixing when being cooled to 30-40 DEG C, continue cooling down and obtain gel combination.
In an embodiment of first aspect present invention, it comprises following 1)-13) in any one or multinomial:
1) described gas is selected from one or more in air, oxygen and nitrogen;
2) mean molecule quantity of described polyvinyl alcohol is 20,000-6 ten thousand; Be preferably 2-4 ten thousand, 3-5 ten thousand or 4-6 ten thousand, be more preferably 20,000,25000,27000,30,000,33000,35000,40,000,45000,50,000,54000,58000 or 60,000;
3) alcoholysis degree of described polyvinyl alcohol is 70%-95%, be preferably 70%-80%, 75%-83%, 80%-88%, 80%-90% or 85%-95%, be more preferably 70%, 75%, 80%, 82%, 85%, 88%, 90%, 93% or 95%;
4) described wetting agent is polyoxyethylene polyoxy propyl alcohol amidogen ether or polyoxyethylene amyl group phenolic ether, is preferably polyoxyethylene polyoxy propyl alcohol amidogen ether;
5) by weight percentage, described plasticizer accounts for the 0.1-0.8% of water-solubility membrane, is preferably 0.1-0.4%, 0.1-0.5%, 0.3-0.6% or 0.5-0.8%, is more preferably 0.1%, 0.5%, 0.6% or 0.8%;
6) by weight percentage, described disintegrant accounts for the 0.5-2% of water-solubility membrane, is preferably 0.5-0.8%, 0.6-1%, 1-1.5%, 1.4-1.8% or 1.6-2%, is more preferably 0.5%, 0.8%, 1%, 1.2%, 1.5%, 1.7% or 2%;
7) by weight percentage, described wetting agent accounts for the 5-7% of water-solubility membrane, is preferably 5-6%, 5.5-6.5% or 6-7%, is more preferably 5%, 5.5%, 6%, 6.6%, 6.8% or 7%;
8) volume of described utricule is 0.1L-0.6L, is preferably 0.1L, 0.2L, 0.25L, 0.3L, 0.4L, 0.5L, 0.6L, 0.1-0.5L, 0.2-0.6L or 0.3-0.6L;
9) described gel-type vehicle is selected from one or more in agar, Portugal's sweet dew glue, carboxymethyl cellulose, locust bean gum, carob, xanthans, gelatin and algin; Be preferably agar, algin or carboxymethyl cellulose;
10) described active component accounts for the 30-60% of gel combination weight; Be preferably 40-60%, 50-60%, be more preferably 40%, 50%, 55%, 58% or 60%;
11) described water absorbing agent accounts for the 3-5% of gel combination weight, is preferably 3-4%, 3.5-5%, 3%, 3.5%, 4%, 4.5%, 4.8% or 5%;
12) described water absorbing agent is selected from one or more in active carbon, calcium chloride and starch;
13) each utricule is containing gel combination 50-200g, is preferably 50g, 80g, 100g, 120g, 150g or 200g.
Second aspect present invention provides the preparation method of agricultural chemicals described in first aspect, comprises the steps,
(1) add water in polyvinyl alcohol raw material, after dissolving, obtain glue;
Alternatively, add water also add simultaneously in plasticizer, disintegrant and wetting agent any one or multiple;
(2) by described glue standing and defoaming, mould molding is entered, the dry demoulding, the utricule of obtained opening;
(3) in blister cavities, gel combination is put into, insufflation gas, sealing;
Optionally, also comprise the utricule of sealing is placed in drying (humidity≤20%, preferably≤18% ,≤15% ,≤13% ,≤10% or≤5%), preserve under 0-5 DEG C environment.
In an embodiment of second aspect present invention, described preparation method comprises following 1)-5) in any one or multinomial:
1) percetage by weight of polyvinyl alcohol described in glue is 15-30%;
2) percetage by weight of plasticizer described in glue is 0.015-0.27%;
3) percetage by weight of disintegrant described in glue is 0.07-0.67%;
4) percetage by weight of wetting agent described in glue is 0.7-2.33%;
5) in step (2), baking temperature is 50-100 DEG C, is preferably 80-100 DEG C.
Described plasticizer can be the normally used type in affiliated field, can be selected from one or more in aliphatic dibasic acid ester, Phthalates (comprising phthalate, terephthalic acid ester), the many esters of gallic acid of benzene, benzoates, polyol ester class, chlorinated hydrocarbons, epoxies, citric acid ester type and polyesters.
Described disintegrant can be the normally used type in described field, can be selected from one or more in sodium carboxymethyl starch, low-substituted hydroxypropyl cellulose, crospolyvinylpyrrolidone and Ac-Di-Sol.
Described chemical pesticide can be selected from phosphate, monothio phosphate, phosphorodithioate, phosphonate ester, phosphamide, thio-phosphamide, pyrophosphate, N-methyl carbamate class, dimethylcarbamate, photo-labile pyrethroid, photostability pyrethroid, dithiocarbamates, sulfamic acid class, thiosulfonates class, trichloro-methylthio class, dinitroaniline, carbamates, diphenyl ether, triazine, phenoxy carboxylic acid, sulfonylurea, imidazolone type, compound sodium nitrophenolate, Nafusaku, diethyl aminoethyl hexanoate, Prohexadione calcium, multiple-effect is frustrated, chlormequat, sodium chlorate, borax, arsenate, trichloroacetic acid, nitrophenol, chlorophenol, carbamic acid, Acetochlor, alachlor, butachlor, atrazine, 2,4-D butyl ester, isopropyl methoxalamine, prometryn, pendimethalin, paraquat, Quizalotop-ethyl, imazethapyr, fomesafen, clomazone, benazolin, Folithion, Rogor, phenthoate dimephenthoate cidial, ethion, phosmet, ronnel, hexachlorcyclohexane, fortified benzene hexachloride, toxaphene, Niran, dichlorodiphenyl trichloroethane, sevin, Hopside, isoprocarb, meta-tolyl-N-methylcarbamate (MTMC), dimethyl phenyl carbamate, Aphox, fenthion, dichlorvos, pyrethroid, Hinosan, kitazine, fenaminosulf, 402. asomate, mazn, Tuzet, for gloomy amine, milneb, 2,4-drips, Avadex, propachlor, chlorophos, marathon, orthene, phoxim, dicofol, carbendazim, topsin, captan, zineb, tmtd, carboxin, different careless pest are clean, aliette, tpn, nitrofen, Stam F-34, atrazine, Machete, drag-line, benthiocarb, 2 first 4 chlorine, chlortoluron, diuron, trefanocide, Bentazon, one or more in dalapon and glyphosate.
Described microorganism, microbial metabolic products refer to the microorganism that prevent and treat pests such as insect, germ, weeds, nematode, muroids or its metabolite.Described microorganism or its metabolite can be selected from jinggangmeisu, bacillus thuringiensis,Bt, gibberellin, Avermectin, kasugarnycin, white muscardine fungi and green muscardine fungus one or more.
The beneficial effect of the invention
The present invention be used for unmanned plane use pesticidal aqueous point less, lightweight, the effective agricultural chemicals useful load of single of unmanned plane is large, decreases the number of times of unmanned plane landing dosing repeatedly, improves efficiency.In the forward and backward or process of spraying insecticide, field irrigation is sprayed water, after unmanned plane spray medicine, it is damaged that the outer field water-solubility membrane of agricultural chemicals of the present invention meets water-soluble solution, inner gel combination outwards penetrates, and the gel combination of injection meets water dissolved dilution, be attached to the positions such as the leaf of crops, root, complete dispenser, therefore, by means of above-mentioned dispenser mechanism, unmanned plane only need be serious or by the some somes dispensers that Region dividing is selected out to damage by disease and insect within the scope of farmland, sprays insecticide, improve dispenser efficiency without the need to large area.And gel-type vehicle of the present invention is that the maintenance of microbial growth and microbial metabolic products activity provides environmental condition.Water-solubility membrane of the present invention is easy to natural degradation, environmentally safe.
Embodiment 2: the present invention is used for the agricultural chemicals B that unmanned plane is used
(1) be 95% by 150g alcoholysis degree, mean molecule quantity is the polyvinyl alcohol raw material of 4-6 ten thousand, 2.7g BBP(Butyl Benzyl Phthalate, 0.7g crospolyvinylpyrrolidone and 7g polyoxyethylene polyoxy propyl alcohol amidogen ether add water to 1000g and dissolve, and obtains glue;
(2) by described glue standing and defoaming 6 hours, pour into die for molding, 50 DEG C of drying demouldings after 10 hours, obtain opening utricule; After tested, the thickness of utricule outer layer polyethylene alcohol film is 500 μm, and tensile strength is 4MPa;
(3) add water 100g agar stirring and dissolving at 50 DEG C, evaporation and concentration to 50% (w/w) at such a temperature, be cooled to 30 DEG C, add 213g chlorophos (dimethyl-(the chloro-1-hydroxyethyl of 2,2,2-tri-) phosphate) pulvis and 12.77g starch is mixed into gel combination, this gel combination is put in blister cavities, insufflation gas, sealing, at 5-35 DEG C, the pressure of utricule inside is 0.42-0.45MPa, and utricule volume is 0.3L.
Prepare the agricultural chemicals B that the present invention uses for unmanned plane.
Comparative example: the existing agricultural chemicals sprayed for unmanned plane
Become by 100g chlorophos pulvis thin up concentration to be the solution of 40% (w/w), obtain agricultural chemicals C.
Experimental example:
Load agricultural chemicals A-C with same model unmanned plane and carry out dispenser, dispenser object is respectively that three place's region locations are close, area is the farmland of 20 mu, spray medicine in irrigation limit, limit during A, B dispenser of its Pesticides.Tracing observation dispenser process, mensuration spraying time, observation drug effect.
(1) dispenser process:
I, agricultural chemicals A: before dispenser, incite somebody to action often per mu point of four regions, unmanned plane is heart position dispenser in each area only.After agricultural chemicals lands, it is damaged that its outer field water-solubility membrane meets water-soluble solution, gel combination is sprayed by breakage, along with the ejection of composition, breakage cracking is gradually large, and final instant of complete cracking sprays medicine towards periphery, the distance that medicine outwards sprays is 5-10 rice, the gel combination sprayed meets water dissolved dilution, and is attached to its position such as leaf, root by crops stop in course of injection, completes spray medicine.Unmanned plane spray insecticide A process in not landing dosing again.
II, agricultural chemicals B: before dispenser, incite somebody to action often per mu point of two regions, unmanned plane is heart position dispenser in each area only.After agricultural chemicals lands, it is damaged that its outer field water-solubility membrane meets water-soluble solution, gel combination is sprayed by breakage, along with the ejection of medicine, breakage cracking is gradually large, and final instant of complete cracking sprays medicine towards periphery, the distance that medicine outwards sprays is 10-18 rice, water dissolved dilution met by the medicine sprayed, and is attached to its position such as leaf, root by crops stop in course of injection, completes spray medicine.Unmanned plane spray insecticide B process in not landing dosing again.
III, agricultural chemicals C: unmanned plane evenly sprays everywhere to 20 mu of farmlands, and in spray medicine process, landing dosing is once again for unmanned plane.
(2) spraying time is in table 1:
Table 1
Medicine |
Spraying time (min) |
Agricultural chemicals A |
24 |
Agricultural chemicals B |
11 |
Agricultural chemicals C |
45 |
From result above, the present invention is used for the agricultural chemicals that unmanned plane is used, moisture-free, and the single active ingredient useful load of unmanned plane is larger, decreases the number of times of landing dosing in dispenser process.And jet power when spraying by means of utricule inner gel composition completes spray medicine, therefore, unmanned plane, without the need to carrying out large area spray medicine to farmland, only to some input agricultural chemicals, need improve efficiency.
(3) drug effect: dispenser is after 2 days, and the pesticide supplying effect in farmland is in table 2.
Table 2
Agricultural chemicals A-C has insecticidal action, and wherein, the insecticidal effect of agricultural chemicals A-B is better.Although the specific embodiment of the present invention has obtained detailed description, it will be understood to those of skill in the art that.According to disclosed all instructions, can carry out various amendment and replacement to those details, these change all within protection scope of the present invention.Four corner of the present invention is provided by claims and any equivalent thereof.