CN104782634A - Terbuthylazine and bromacil containing weeding composition and application thereof - Google Patents
Terbuthylazine and bromacil containing weeding composition and application thereof Download PDFInfo
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- CN104782634A CN104782634A CN201510187835.7A CN201510187835A CN104782634A CN 104782634 A CN104782634 A CN 104782634A CN 201510187835 A CN201510187835 A CN 201510187835A CN 104782634 A CN104782634 A CN 104782634A
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Abstract
The invention discloses a terbuthylazine and bromacil containing weeding composition and application thereof. The terbuthylazine and bromacil containing weeding composition uses terbuthylazine and bromacil in a mass ratio of (1-50): (1-50) as effective components. The terbuthylazine and bromacil containing weeding composition compounds the terbuthylazine and the bromacil, so that the advantages of the terbuthylazine and the bromacil are effectively achieved, the obtained terbuthylazine and bromacil containing weeding composition is excellent in quality and good in pesticide effect, can be applied to a non-cultivated land area or a field planting citrus garden, and has a control effect significantly higher than that of single terbuthylazine or single bromacil; the weeding composition is prepared into big granules, can control the release rate of pesticidal active components, is long in lasting time and relatively low in using amount, and is unlikely to cause pesticidal damage to crops; the big granules are not required to be added into water, dissolved, diluted and sprayed, and can be directly spread onto the surface of soil manually or by airplane, so that the time and the labor are saved, and the weeding composition is convenient and quick; the big granules are not adhered to stems and leaves of the crops, and is small in drift and small in pollution to the environment, so that pesticidal damage caused by direct contact is avoided, and the weeding composition is safe to spreading personnel.
Description
Technical field
The present invention relates to a kind of Herbicidal combinations and the application thereof that contain Garagard and bromacil, be specifically related to a kind of large granula Herbicidal combinations and the application thereof that contain Garagard and bromacil, belong to technical field of pesticide.
Background technology
Garagard, English common name: terbuthylazine, the special fourth amino of the chloro-4-of chemical name: 2--6-ethylamino-1,3,5-triazines, has another name called bladex.Garagard outward appearance is white solid, and in water, solvability 8.5mg/L (20 DEG C), is soluble in organic solvent, and stable in neutrality, weak acid, weak alkaline medium, in strong acid and highly basic medium, facile hydrolysis lost efficacy.Garagard is broad spectrum activity inner-adsorption conduction-type herbicide, and mainly through root absorption, do district etc. prevent and kill off multiple weeds for Soybean Field, sorghum field, oranges and tangerines field, pomaceous fruit field, vineyard, afforestation, uncultivated area, consumption is 1.2 ~ 1.8Kg/hm
2.
Bromacil, English name: bromacil, chemical name: 6-methyl-5-bromo-3-sec-butyl urea pyrimidine, have another name called bromacil, must mite Garrick.Bromacil sterling is colorless crystalline solid, and in water, solvability 815mg/L (25 DEG C), dissolves in acetone, the organic solvents such as ethanol, also dissolve in highly basic.Bromacil belongs to proporphyrinogen oxidase inhibitor class nonselective herbicide, and can prevent and kill off uncultivated area and do the most weeds in district, consumption is 5 ~ 15Kg/hm
2; Can prevent and kill off annual weed in the citrus orchard of field planting, consumption is 3.2 ~ 8.0Kg/hm2; Can management of weeds pineapple Tanaka, consumption is 1.8 ~ 5.5Kg/hm
2.
The single dose of Garagard and bromacil all belongs to broad spectrum weeding agent, can be used for uncultivated area and do district (as train way limit) management of weeds, or for the citrus orchard management of weeds of field planting, but along with the increase of the medication time limit, there is the shortcomings such as herbicide resistance strengthens, herbicide spectrum is narrow, consumption is large, not only increase cost, environmental pressure also increases.If by solving the problem, to practical application by significant to Garagard and the composite of bromacil.
In addition, the formulation of Garagard and bromacil mostly is wetting powder, water dispersible granules now, these formulations need to carry out dispenser with the form of spraying, this insecticide-applying way is time-consuming, labour intensity is large, and the availability of active ingredient is lower, add the chance that medicament directly contacts with people, increase the danger to dispenser personnel.Large granula (macrogranule, GG) be the granule of a kind of particle size range between 2.0 ~ 6.0mm, it has significant supplementary function for the spray agent of pulvis (directly dusting) and dilute with water, this large granula can direct labor to be spread fertilizer over the fields or aircraft spreads fertilizer over the fields at soil surface, time saving and energy saving.If large granula made by Garagard and bromacil, when can effectively avoid scattering, micro mist flies upward, and pollutes surrounding environment; Reduce operating personnel in dispenser process and suck micro mist, can intoxication accident be avoided; Make that high-toxic pesticide is low to be poisoned, granule can spread fertilizer over the fields by direct hand, and unlikely poisoning; The rate of release of active ingredient in granule can be controlled, extend the lasting period; During dispenser, there is directionality, make the granule of spreading really can arrive the place of needs; Be not attached on the cauline leaf of plant, avoid directly contact to produce poisoning.
Summary of the invention
The object of this invention is to provide a kind of Herbicidal combinations containing Garagard and bromacil, Garagard and bromacil carry out composite by said composition, improve herbicidal effect.
Present invention also offers the large granula formulation of one of this Herbicidal combinations, this formulation does not need spray pesticide, can direct labor to spread fertilizer over the fields or aircraft spreads fertilizer over the fields, time saving and energy saving.
Present invention also offers the application of this Herbicidal combinations in controlling weeds, be mainly used for the citrus orchard that uncultivated area does district or field planting.
The present invention is decided to be active ingredient with Garagard and weeding, obtains composition of good performance by composite.Garagard and bromacil all belong to the toxicity such as low, and to people and animals, beneficial organism, Environmental security, both composite does district weeds to uncultivated area or citrus orchard weeds have higher control efficiency, obvious synergistic effect is there is between two components, and active ingredient dosage reduces after mixed, effectively reduce ecosystem environment to pollute, also can delay the resistance of weeds to single medicament, there is good application prospect.
The concrete technical scheme of the present invention is as follows:
A kind of Herbicidal combinations, active ingredient comprises Garagard and bromacil, and Garagard and bromacil mass ratio are 1 ~ 50: 1 ~ 50, and preferred mass ratio is 0.1 ~ 20:1, and preferred mass ratio is 0.5 ~ 2.5:1 further, and preferred mass ratio is 1.5:1.The composition medicine better effects if obtained is used with according to preferred proportion.
Herbicidal combinations of the present invention can add acceptable auxiliary material on agricultural chemicals disclosed in prior art and make formulation of good performance, preferably can make granule, more preferably can make the large granula facilitating dispenser.
When Herbicidal combinations is large granula, described particle diameter is 2.0 ~ 6.0mm, is more specifically 2.0mm, 2.5mm, 3.0mm, 3.5mm, 4mm, 5mm and 6mm.When large granula particle diameter is 3.0mm, large granula performance and drug effect the best; When particle diameter is 2.0mm and 2.5mm, when spreading fertilizer over the fields use, still have drift phenomenon; When particle diameter is 3.5mm, 4mm, 5mm and 6mm, after spreading fertilizer over the fields use, the spacing of particle on soil is increasing, affects the performance of drug effect.Therefore particle diameter is preferably 2.0-4.0mm, and optimum is 3.0mm.
In Herbicidal combinations of the present invention, the content of active ingredient is 5 ~ 50wt%, is preferably 5 ~ 40wt%, more preferably 10 ~ 40wt%, more preferred 15 ~ 25wt%, most preferably is 20wt%.Except active ingredient, it is adjunct ingredient.When Herbicidal combinations of the present invention is large granula, because be not that spraying uses but spreads fertilizer over the fields use, under the condition that active ingredient mu consumption is determined, if preparation of traditional Chinese medicine active constituent content is too high, then can make to spread fertilizer over the fields spacing between rear particle excessive, cause the preventive effect scope of individual particle to be less than grain spacing, cause control dead angle.When being therefore large granula, effective ingredient content is not higher than 50wt%, optimum 20wt%.
When composition is large granula, composition and the weight percent content of this large granula active ingredient and auxiliary material are as follows: active ingredient 5 ~ 50% (preferably 5 ~ 40wt%, more preferably 10 ~ 40wt%, preferred 15 ~ 25wt% again, most preferably 20wt%), dispersant 3 ~ 6%, wetting agent 1 ~ 4%, binding agent 3 ~ 6%, filler surplus.When adopting following weight percent content, performance and the drug effect of large granula are better: active ingredient 5 ~ 50% (preferably 5 ~ 40wt%, more preferably 10 ~ 40wt%, preferred 15 ~ 25wt% again, most preferably 20wt%), dispersant 5%, wetting agent 3%, binding agent 5%, filler surplus.
In above-mentioned large granula, described dispersant is one or more in di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate, 2-naphthalene sulfonic acid formaldehyde polymer sodium salt, maleic acid-acrylic acid copolymer salt, polyox-yethylene-polyoxypropylene block copolymer, naphtholsulfonic acid formaldehyde condensation products sodium salt, ethylene oxide-propylene oxide block copolymer, aryl phenol APEO, two naphthalenesulfonate formaldehyde condensation compound sodium salt, polycarboxylate sodium, alkylphenol sodium sulfonate, alkyl naphthalene sulfonic acid formaldehyde condensation products sodium salt, calcium lignosulfonate and alkylphenol polyoxyethylene formaldehyde condensation products sulphate.
In above-mentioned large granula, described wetting agent is lauryl sodium sulfate, neopelex, sodium lignin sulfonate, pull open in powder, a-sulfo methyl ester, sodium tetradecyl sulfate, Negel, a-alkene sulfonic acid sodium, fatty acid amide N methyl taurine sodium salt, dialkyl group succinate sulfonate sodium, sodium sulfate of polyethenoxy ether of fatty alcohol, alkyl phenol polyethenoxy ether sodium sulfate, alkylphenol polyoxyethylene succinic acid half ester sodium sulfonate, fatty acid sulfates and fatty acid ester sulphate one or more.
In above-mentioned large granula, described binding agent is one or more in PVP, glucose, sucrose, soluble starch, xanthans, dextrin and land plaster.
In above-mentioned large granula, described filler is one or more in kaolin, attapulgite, diatomite, bentonite, white carbon, precipitated calcium carbonate, corn starch, urea, talcum powder and anhydrous sodium sulfate.
When following component selected by auxiliary material large granula performance and drug effect better: described dispersant by 2-naphthalene sulfonic acid formaldehyde polymer sodium salt and calcium lignosulfonate in mass ratio 1:4 mix; Described wetting agent by a-alkene sulfonic acid sodium and lauryl sodium sulfate in mass ratio 1:2 mix; Described binding agent by sucrose and xanthans in mass ratio for 4:1 mixes; Described filler is corn starch.
The preparation method of the large granula of above-mentioned Garagard and bromacil comprises the following steps:
(1) Garagard, bromacil, dispersant, wetting agent, binding agent and filler are mixed, carry out ultra micro air-flow crushing, obtain 680 ~ 840 object fine powders, for subsequent use;
(2) gained fine powder is added water mediate, then kneading material is carried out the wet granular that extruder grain obtains diameter 2.0 ~ 6.0mm (preferred 3.0mm), dry for 30 ~ 70 DEG C and to obtain large granula.
The present invention's large granula drug effect is high, herbicidal effect good, easy to utilize.This large granula preparation method is simple, easy to operate, less energy consumption, environmental protection, can realize continuous prodution, ultra micro air-flow crushing is adopted to pulverize medicine, gained diameter of aspirin particle, between 680 ~ 840 orders, meets the requirement of Garagard and the performance of bromacil drug effect, utilizes extruder grain method more simple, be convenient to implement, it can carry out continuous prodution, and manufacturing cost is lower, and product quality is excellent.
Garagard and bromacil carry out composite by the present invention, have effectively played the advantage of both, products obtained therefrom good quality, good drug efficacy, may be used for the citrus orchard that uncultivated area does district or field planting, and preventive effect is apparently higher than the preventive effect of alone Garagard or alone bromacil.The present composition obviously can save Financial cost, the residual quantity of medicament in agricultural product and environment can also be reduced simultaneously, delay the generation that main raw herbicide resistance and secondary weeds are rampant again, extend the service life of medicament, there is important economic implications, environment protection significance and ecological significance.
Garagard and bromacil Herbicidal combinations are made large granula by the present invention, and can control the rate of release of pesticide active ingredient, the lasting period is long, dosage is reduced relatively, not easily causes chemical injury of crops; Large granula does not need to be added to the water dissolved dilution spray pesticide again, and can direct labor to spread fertilizer over the fields or aircraft spreads fertilizer over the fields at soil surface, have directionality during dispenser, the large granula of spreading can arrive the place of needs really, time saving and energy saving, convenient and swift; Large granula is not attached on the cauline leaf of crop, and drift little, environmental pollution is little, avoids directly contact to produce poisoning, to dispenser personal security.
Embodiment
Further, with following specific embodiment, the present invention is described in detail, but the present invention is limited to absolutely not these examples.If no special instructions, following each component content is weight percentage.
The large granula of embodiment 1 20% Garagard bromacil
Garagard 12%, bromacil 8%, dispersant 2-naphthalene sulfonic acid formaldehyde polymer sodium salt 1%, calcium lignosulfonate 4%, wetting agent a-alkene sulfonic acid sodium 1%, lauryl sodium sulfate 2%, binding agent sucrose 4%, xanthans 1%, corn starch supplies 100%.
Preparation method is: after each component fully being mixed; carry out ultra micro air-flow crushing; obtain 750 order fine powders; again gained fine powder is added in kneader appropriate water to mediate; through squash type granulator granulation; obtain the wet granular of diameter 3.0mm, dry at 70 DEG C in fluidizing fluid-bed, namely obtain the large granula of 20% Garagard bromacil.
The large granula of embodiment 2 20% Garagard bromacil
Large granule formulations and preparation method with embodiment 1, unlike: large granula diameter is 2.0mm.
The large granula of embodiment 3 20% Garagard bromacil
Large granule formulations and preparation method with embodiment 1, unlike: large granula diameter is 2.5mm.
The large granula of embodiment 4 20% Garagard bromacil
Large granule formulations and preparation method with embodiment 1, unlike: large granula diameter is 3.5mm.
The large granula of embodiment 5 20% Garagard bromacil
Large granule formulations and preparation method with embodiment 1, unlike: large granula diameter is 4.0mm.
The large granula of embodiment 6 20% Garagard bromacil
Large granule formulations and preparation method with embodiment 1, unlike: large granula diameter is 5.0mm.
The large granula of embodiment 7 20% Garagard bromacil
Large granule formulations and preparation method with embodiment 1, unlike: large granula diameter is 6.0mm.
The large granula of embodiment 8 15% Garagard bromacil
Garagard 9%, bromacil 6%, dispersant 2-naphthalene sulfonic acid formaldehyde polymer sodium salt 1%, calcium lignosulfonate 4%, wetting agent a-alkene sulfonic acid sodium 1%, lauryl sodium sulfate 2%, binding agent sucrose 4%, xanthans 1%, corn starch supplies 100%.
Preparation method is with embodiment 1.
The large granula of embodiment 9 18% Garagard bromacil
Garagard 10.8%, bromacil 7.2%, dispersant 2-naphthalene sulfonic acid formaldehyde polymer sodium salt 1%, calcium lignosulfonate 4%, wetting agent a-alkene sulfonic acid sodium 1%, lauryl sodium sulfate 2%, binding agent sucrose 4%, xanthans 1%, corn starch supplies 100%.
Preparation method is with embodiment 1.
The large granula of embodiment 10 22% Garagard bromacil
Garagard 13.2%, bromacil 8.8%, dispersant 2-naphthalene sulfonic acid formaldehyde polymer sodium salt 1%, calcium lignosulfonate 4%, wetting agent a-alkene sulfonic acid sodium 1%, lauryl sodium sulfate 2%, binding agent sucrose 4%, xanthans 1%, corn starch supplies 100%.
Preparation method is with embodiment 1.
The large granula of embodiment 11 25% Garagard bromacil
Garagard 15%, bromacil 10%, dispersant 2-naphthalene sulfonic acid formaldehyde polymer sodium salt 1%, calcium lignosulfonate 4%, wetting agent a-alkene sulfonic acid sodium 1%, lauryl sodium sulfate 2%, binding agent sucrose 4%, xanthans 1%, corn starch supplies 100%.
Preparation method is with embodiment 1.
The large granula of embodiment 12 10% Garagard bromacil
Garagard 6%, weeding 4%, dispersant 2-naphthalene sulfonic acid formaldehyde polymer sodium salt 1%, calcium lignosulfonate 4%, wetting agent a-alkene sulfonic acid sodium 1%, lauryl sodium sulfate 2%, binding agent sucrose 4%, xanthans 1%, corn starch supplies 100%.
Preparation method is with embodiment 1.
The large granula of embodiment 13 12% Garagard bromacil
Garagard 7.2%, bromacil 4.8%, dispersant 2-naphthalene sulfonic acid formaldehyde polymer sodium salt 1%, calcium lignosulfonate 4%, wetting agent a-alkene sulfonic acid sodium 1%, lauryl sodium sulfate 2%, binding agent sucrose 4%, xanthans 1%, corn starch supplies 100%.
Preparation method is with embodiment 1.
The large granula of embodiment 14 30% Garagard bromacil
Garagard 18%, bromacil 12%, dispersant 2-naphthalene sulfonic acid formaldehyde polymer sodium salt 1%, calcium lignosulfonate 4%, wetting agent a-alkene sulfonic acid sodium 1%, lauryl sodium sulfate 2%, binding agent sucrose 4%, xanthans 1%, corn starch supplies 100%.
Preparation method is with embodiment 1.
The large granula of embodiment 15 40% Garagard bromacil
Garagard 24%, bromacil 16%, dispersant 2-naphthalene sulfonic acid formaldehyde polymer sodium salt 1%, calcium lignosulfonate 4%, wetting agent a-alkene sulfonic acid sodium 1%, lauryl sodium sulfate 2%, binding agent sucrose 4%, xanthans 1%, corn starch supplies 100%.
Preparation method is with embodiment 1.
The large granula of embodiment 16 5% Garagard bromacil
Garagard 3%, bromacil 2%, dispersant 2-naphthalene sulfonic acid formaldehyde polymer sodium salt 1%, calcium lignosulfonate 4%, wetting agent a-alkene sulfonic acid sodium 1%, lauryl sodium sulfate 2%, binding agent sucrose 4%, xanthans 1%, corn starch supplies 100%.
Preparation method is with embodiment 1.
The large granula of embodiment 17 8% Garagard bromacil
Garagard 4.8%, bromacil 3.2%, dispersant 2-naphthalene sulfonic acid formaldehyde polymer sodium salt 1%, calcium lignosulfonate 4%, wetting agent a-alkene sulfonic acid sodium 1%, lauryl sodium sulfate 2%, binding agent sucrose 4%, xanthans 1%, corn starch supplies 100%.
Preparation method is with embodiment 1.
The large granula of embodiment 18 45% Garagard bromacil
Garagard 27%, bromacil 18%, dispersant 2-naphthalene sulfonic acid formaldehyde polymer sodium salt 1%, calcium lignosulfonate 4%, wetting agent a-alkene sulfonic acid sodium 1%, lauryl sodium sulfate 2%, binding agent sucrose 4%, xanthans 1%, corn starch supplies 100%.
Preparation method is with embodiment 1.
The large granula of embodiment 19 50% Garagard bromacil
Garagard 30%, bromacil 20%, dispersant 2-naphthalene sulfonic acid formaldehyde polymer sodium salt 1%, calcium lignosulfonate 4%, wetting agent a-alkene sulfonic acid sodium 1%, lauryl sodium sulfate 2%, binding agent sucrose 4%, xanthans 1%, corn starch supplies 100%.
Preparation method is with embodiment 1.
The large granula of embodiment 20 20% Garagard bromacil
Garagard 12%, bromacil 8%; dispersant polycarboxylate sodium 3%, naphtholsulfonic acid formaldehyde condensation products sodium salt 1%; wetting agent a-sulfo methyl ester 2%, fatty acid amide N methyl taurine sodium salt 1.0%, binding agent PVP2%, soluble starch 2%, kaolin supplies 100%.
Preparation method is with embodiment 1.
The large granula of embodiment 21 20% Garagard bromacil
Garagard 14.29%, bromacil 5.71%, dispersant 2-naphthalene sulfonic acid formaldehyde polymer sodium salt 3%, calcium lignosulfonate 3%, wetting agent a-alkene sulfonic acid sodium 3%, binding agent xanthans 3%, corn starch supplies 100%.
Preparation method is with embodiment 1.
The large granula of embodiment 22 20% Garagard bromacil
Garagard 6.67%, bromacil 13.33%, dispersant ethylene oxide-propylene oxide block copolymer 2%, aryl phenol APEO 3%, wetting agent lauryl sodium sulfate 2%, neopelex 2%, binding agent glucose 5%, talcum powder supplies 100%.
Preparation method is with embodiment 1.
The large granula of embodiment 23 20% Garagard bromacil
Garagard 19.05%, bromacil 0.95%, dispersant maleic acid-acrylic acid copolymer salt 2.5%, alkylphenol polyoxyethylene formaldehyde condensation products sulphate 2.5%, wetting agent dialkyl group succinate sulfonate sodium 1.0%, binding agent dextrin 6%, diatomite supplies 100%.
Preparation method is: after mixture fully mixes; carry out ultra micro air-flow crushing; obtain 720 order fine powders; again gained fine powder is added in kneader appropriate water to mediate; through squash type granulator granulation; obtain the wet granular of diameter 3.0mm, dry at 60 DEG C in fluidizing fluid-bed, namely obtain the large granula of 20% Garagard bromacil.
The large granula of embodiment 24 20% Garagard bromacil
Garagard 1.82%, bromacil 18.18%, the two naphthalenesulfonate formaldehyde condensation compound sodium salt 2% of dispersant, alkylphenol sodium sulfonate 2.5%, wetting agent alkylphenol polyoxyethylene succinic acid half ester sodium sulfonate 0.8%, fatty acid sulfates 1.4%, binding agent land plaster 6%, precipitated calcium carbonate supplies 100%.
Preparation method is: after mixture fully mixes; carry out ultra micro air-flow crushing; obtain 700 order fine powders; again gained fine powder is added in kneader appropriate water to mediate; through squash type granulator granulation; obtain the wet granular of diameter 3.0mm, dry at 55 DEG C in fluidizing fluid-bed, namely obtain the large granula of 20% Garagard bromacil.
The large granula of embodiment 25 20% Garagard bromacil
Garagard 0.39%, bromacil 19.61%, the two naphthalenesulfonate formaldehyde condensation compound sodium salt 0.5% of dispersant, polycarboxylate sodium 2.5%, wetting agent sodium tetradecyl sulfate 1.5%, Negel 1.5%, binding agent xanthans 0.5%, soluble starch 3%, diatomite supplies 100%.
Preparation method is: after mixture fully mixes; carry out ultra micro air-flow crushing; obtain 730 order fine powders; again gained fine powder is added in kneader appropriate water to mediate; through squash type granulator granulation; obtain the wet granular of diameter 3.0mm, dry at 62 DEG C in fluidizing fluid-bed, namely obtain the large granula of 20% Garagard bromacil.
The large granula of embodiment 26 20% Garagard bromacil
Garagard 19.61%; bromacil 0.39%; dispersant polyox-yethylene-polyoxypropylene block copolymer 4%, aryl phenol APEO 2%; wetting agent fatty acid sulfates 1.5%, fatty acid amide N methyl taurine sodium salt 1.0%; binding agent PVP1%, glucose 3%, attapulgite supplies 100%.
Preparation method is: after mixture fully mixes; carry out ultra micro air-flow crushing; obtain 650 order fine powders; again gained fine powder is added in kneader appropriate water to mediate; through squash type granulator granulation; obtain the wet granular of diameter 3.0mm, dry at 50 DEG C in fluidizing fluid-bed, namely obtain the large granula of 20% Garagard bromacil.
The large granula of embodiment 27 20% Garagard bromacil
Garagard 0.95%, bromacil 19.05%, dispersant aryl phenol APEO 2%, maleic acid-acrylic acid copolymer salt 2%, wetting agent sodium tetradecyl sulfate 1.5%, alkylphenol polyoxyethylene succinic acid half ester sodium sulfonate 0.5%, binding agent dextrin 3%, kaolin supply 100%.
Preparation method is: after mixture fully mixes; carry out ultra micro air-flow crushing; obtain 800 order fine powders; again gained fine powder is added in kneader appropriate water to mediate; through squash type granulator granulation; obtain the wet granular of diameter 3.0mm, dry at 50 DEG C in fluidizing fluid-bed, namely obtain the large granula of 20% Garagard bromacil.
The large granula of embodiment 28 20% Garagard bromacil
Garagard 19.35%, bromacil 0.65%, dispersant di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 4.5%, ethylene oxide-propylene oxide block copolymer 1%, wetting agent Negel 2%, dialkyl group succinate sulfonate sodium 0.5%, binding agent land plaster 5%, urea supply 100%.
Preparation method is: after mixture fully mixes; carry out ultra micro air-flow crushing; obtain 700 order fine powders; again gained fine powder is added in kneader appropriate water to mediate; through squash type granulator granulation; obtain the wet granular of diameter 3.0mm, dry at 50 DEG C in fluidizing fluid-bed, namely obtain the large granula of 20% Garagard bromacil.
The large granula of embodiment 29 20% Garagard bromacil
Garagard 14.29%, bromacil 5.71%, dispersant 2-naphthalene sulfonic acid formaldehyde polymer sodium salt 1%, calcium lignosulfonate 4%, wetting agent a-alkene sulfonic acid sodium 1%, lauryl sodium sulfate 2%, binding agent sucrose 4%, xanthans 1%, corn starch supplies 100%.
Preparation method is with embodiment 1.
The large granula of embodiment 30 20% Garagard bromacil
Garagard 6.67%, bromacil 13.33%, dispersant 2-naphthalene sulfonic acid formaldehyde polymer sodium salt 1%, calcium lignosulfonate 4%, wetting agent a-alkene sulfonic acid sodium 1%, lauryl sodium sulfate 2%, binding agent sucrose 4%, xanthans 1%, corn starch supplies 100%.Preparation method is with embodiment 1.
The large granula of embodiment 31 20% Garagard bromacil
Garagard 19.05%, bromacil 0.95%, dispersant 2-naphthalene sulfonic acid formaldehyde polymer sodium salt 1%, calcium lignosulfonate 4%, wetting agent a-alkene sulfonic acid sodium 1%, lauryl sodium sulfate 2%, binding agent sucrose 4%, xanthans 1%, corn starch supplies 100%.Preparation method is with embodiment 1.
The large granula of embodiment 32 20% Garagard bromacil
Garagard 1.19%, bromacil 18.18%, divide dispersant 2-naphthalene sulfonic acid formaldehyde polymer sodium salt 1%, calcium lignosulfonate 4%, wetting agent a-alkene sulfonic acid sodium 1%, lauryl sodium sulfate 2%, binding agent sucrose 4%, xanthans 1%, corn starch supplies 100%.Preparation method is with embodiment 1.
Properties of product are tested
Enumerate portioned product performance data and the test of pesticide effectiveness below to prove the advantage of medicine of the present invention.
One, oranges and tangerines field weed control efficiency research
1, institute's with medicament
Experimental pharmacy: the made preparation of the embodiment of the present invention;
Contrast medicament: Garagard 90%WG (commercial), bromacil 80%WG (commercial).
2, test method:
In oranges and tangerines field, May in summer tests, and oranges and tangerines Tanaka weeds have lady's-grass, beggar-ticks, moleplant seed, grass dragon, annual bluegrass, clearvers, amur foxtail, ox chickweed, Veronica, acalypha copperleaf, eleusine indica, Horseweed Herb etc.During experiment, select 31 pieces of oranges and tangerines fields as test region, dispenser is carried out according to following table 1 and table 2 respectively in every block oranges and tangerines field, test region.Application method is the consumption that calculates the large granula of embodiment needed for every block test region according to active ingredient dosage, and adopt artificial broadcast's mode to be spread in uniform in test region to carry out dispenser control, contrast medicament adopts cauline leaf spray pattern to carry out dispenser control (during herbal sprinkling, use water 450 kg/ha is diluted), dispenser weather on the same day is fine, the dispenser when morning 9 ~ 11, the maximum air temperature 25 DEG C, the minimum air temperature 15 DEG C.Select district in contrast, one piece of oranges and tangerines field, check plot does not spray any medicament simultaneously.
Preventive effect computational methods:
Wherein CK
0--weeds strain number before clear water control treatment;
CK
1--7d weeds strain number after clear water control treatment;
A
0--weeds strain number before dispenser;
A
1--7d weeds strain number after dispenser;
3, result
The large granula performance of 3.1 embodiment 1-19 and efficacy testing the results are shown in following table 1.
Table 1 properties of product and efficacy testing result (strain preventive effect %, after dispenser 7 days)
As can be seen from the above table, embodiment 1,2,3,4,5,6 and 7 active constituent content is 20%, particle diameter is respectively 3.0,2.0,2.5,3.5,4.0,5.0 and 6.0mm, can be found out by above-mentioned data, during large granula particle diameter >=3.0mm, drift value is minimum, the lasting period can reach more than 2 years, during particle diameter < 3.0mm, drift value can reach more than 5%, mainly because particle weight is little, easily with wind drift, lasting period is short simultaneously, below 1.5 years, this is because particle is less, medicament release is faster; During large granula particle diameter≤3.0mm, preventive effect can reach more than 98%, during particle diameter > 3.0mm, along with particle diameter increases, preventive effect reduces gradually, especially embodiment 6 and 7, preventing effectiveness reduces obviously, and this is mainly because, unit are dosage identical in active ingredient is identical, along with the change of particle diameter is large, spread fertilizer over the fields rear grain spacing also increasing, easily produce control dead angle, cause preventive effect step-down.In sum, when large granula particle diameter is 3.0mm, product drift value, lasting period, preventive effect can reach optimal effectiveness.
In addition, embodiment 1, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18 and 19 particle diameters are 3.0mm, can be found out by above-mentioned data, when active constituent content is 20%, lasting period and preventive effect reach optimum resultant effect, when active constituent content is 15 ~ 25%, lasting period and preventive effect resultant effect take second place, when active constituent content is 5 ~ 40%, lasting period and preventive effect resultant effect are third, when active constituent content is 45 ~ 50%, lasting period and preventive effect resultant effect minimum, this is mainly because after active constituent content rising, under the condition that effective ingredient consumption is identical, the usage amount of medicament can decline relatively, corresponding intergranular spacing also can become large, easy appearance control dead angle.In sum, this large granula active constituent content is 5 ~ 50wt%, preferably 5 ~ 40wt%, more preferably 15 ~ 25wt%, most preferably 20wt%.
3.2 other embodiments large granula efficacy testing result is as shown in table 2 below.
Other embodiments of table 2 large granula control oranges and tangerines weeds effect (strain preventive effect %, after dispenser 7 days)
As can be seen from Table 2, within the scope of the present invention, gained Garagard bromacil Herbicidal combinations dosage obviously reduces than single medicament, and preventive effect remains on more than 83%, when the mass ratio of Garagard and bromacil is within the scope of 0.1 ~ 20:1, gained Herbicidal combinations preventive effect remains on more than 87%, when mass ratio is within the scope of 0.5 ~ 2.5:1, preventive effect remains on more than 90%, mass ratio is when 1.5:1, gained Herbicidal combinations best results, preventive effect is more than 95%, and this illustrates that the lifting of selection to drug effect of drug ratios has a significant impact.In addition, can be found out by the contrast of embodiment 1 and 20, embodiment 21 and 29, the selection of auxiliary material also has larger impact to the lifting of drug effect.When selecting best auxiliary material and optimal drug ratio, the present composition can reach 98.8% to the preventive effect of oranges and tangerines weeds.
Two, noncrop area (train way limit) control of weeds Effect disquisition
1, institute's with medicament
Experimental pharmacy: the made preparation of the embodiment of the present invention;
Contrast medicament: Garagard 90%WG (commercial), bromacil 80%WG (commercial).
2, test method:
Test May in summer on noncrop area (train way limit), noncrop area (train way limit) weeds have lady's-grass, beggar-ticks, moleplant seed, grass dragon, annual bluegrass, clearvers, amur foxtail, ox chickweed, Veronica, acalypha copperleaf, eleusine indica, Horseweed Herb etc.During experiment, select 13 pieces of noncrop areas (train way limit) as test region, Mei Kuai noncrop area, test region (train way limit) carries out dispenser according to following table 3 respectively.Application method is the consumption that calculates the large granula of embodiment needed for every block test region according to active ingredient dosage, and adopt artificial broadcast's mode to be spread in uniform in test region to carry out dispenser control, contrast medicament adopts cauline leaf spray pattern to carry out dispenser control (during herbal sprinkling, use water 450 kg/ha is diluted), dispenser weather on the same day is fine, the dispenser when morning 9 ~ 11, the maximum air temperature 25 DEG C, the minimum air temperature 15 DEG C.Select one piece of noncrop area (train way limit) district in contrast, check plot does not spray any medicament simultaneously.
Preventive effect computational methods:
Wherein CK
0--weeds strain number before clear water control treatment;
CK
1--7d weeds strain number after clear water control treatment;
A
0--weeds strain number before dispenser;
A
1--7d weeds strain number after dispenser;
3, result
Each group of medical treatment noncrop area (train way limit) weeds effect is as following table 3.
Table 3 different agents control noncrop area (train way limit) weeds effect (strain preventive effect %, after dispenser 7 days)
As can be seen from the above table, gained Garagard bromacil Herbicidal combinations preventive effect remains on more than 83%, when the mass ratio of Garagard and bromacil is within the scope of 0.1 ~ 20:1, gained Herbicidal combinations preventive effect remains on more than 86%, and when mass ratio is within the scope of 0.5 ~ 2.5:1, preventive effect remains on more than 90%, mass ratio is when 1.5:1, gained Herbicidal combinations best results, preventive effect is more than 95%, and this illustrates that the lifting of selection to drug effect of drug ratios has a significant impact.In addition, can be found out by the contrast of embodiment 1 and 20, embodiment 21 and 29, the selection of auxiliary material also has larger impact to the lifting of drug effect.When selecting best auxiliary material and optimal drug ratio, the preventive effect of the present composition to noncrop area (train way limit) weeds can reach 98.5%.As can be seen from above experiment, Herbicidal combinations of the present invention improves citrus orchard and noncrop area (train way limit) the control of weeds effect of field planting, decreases the usage amount of medicine, economical and practical, effectively reduces ecosystem environment and pollutes, Be very effective.Said composition is made into large granula simultaneously, and the form not needing to spray carries out dispenser, time saving and energy saving; When effectively can avoid dispenser, medicine drift, pollutes surrounding environment; Reduce operating personnel's Sucked medicine in dispenser process, can intoxication accident be avoided; The rate of release of active ingredient in granule can be controlled, extend the lasting period; During dispenser, there is directionality, make the granule of spreading really can arrive the place of needs; Be not attached on the cauline leaf of plant, avoid directly contact to produce poisoning.
Claims (10)
1. a Herbicidal combinations, is characterized in that: active ingredient comprises Garagard and bromacil, and the mass ratio of Garagard and bromacil is 1 ~ 50: 1 ~ 50.
2. Herbicidal combinations according to claim 1, is characterized in that: the mass ratio of Garagard and bromacil is 0.1 ~ 20:1, and preferred mass ratio is 0.5 ~ 2.5:1 further, most preferably is 1.5:1.
3. Herbicidal combinations according to claim 1 and 2, is characterized in that: formulation is granule, is preferably large granula.
4. Herbicidal combinations according to claim 3, is characterized in that: particle diameter is 2.0 ~ 6.0mm, preferred 3.0mm.
5. the Herbicidal combinations according to any one of claim 1-4, is characterized in that: active constituent content is 5 ~ 50wt%, preferably 5 ~ 40wt%, more preferably 15 ~ 25wt%, most preferably 20wt%.
6. Herbicidal combinations according to claim 5, is characterized in that: also comprise auxiliary material, auxiliary material composition and weight percent content as follows: dispersant 3 ~ 6%, wetting agent 1 ~ 4%, binding agent 3 ~ 6%, filler surplus.
7. Herbicidal combinations according to claim 6, is characterized in that: auxiliary material composition and weight percent content as follows: dispersant 5%, wetting agent 3%, binding agent 5%, filler surplus.
8. the Herbicidal combinations according to claim 6 or 7, it is characterized in that: described dispersant is di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate, 2-naphthalene sulfonic acid formaldehyde polymer sodium salt, maleic acid-acrylic acid copolymer salt, polyox-yethylene-polyoxypropylene block copolymer, naphtholsulfonic acid formaldehyde condensation products sodium salt, ethylene oxide-propylene oxide block copolymer, aryl phenol APEO, two naphthalenesulfonate formaldehyde condensation compound sodium salt, polycarboxylate sodium, alkylphenol sodium sulfonate, alkyl naphthalene sulfonic acid formaldehyde condensation products sodium salt, one or more in calcium lignosulfonate and alkylphenol polyoxyethylene formaldehyde condensation products sulphate, described wetting agent is lauryl sodium sulfate, neopelex, sodium lignin sulfonate, pull open powder, a-sulfo methyl ester, sodium tetradecyl sulfate, Negel, a-alkene sulfonic acid sodium, fatty acid amide N methyl taurine sodium salt, dialkyl group succinate sulfonate sodium, sodium sulfate of polyethenoxy ether of fatty alcohol, alkyl phenol polyethenoxy ether sodium sulfate, alkylphenol polyoxyethylene succinic acid half ester sodium sulfonate, one or more in fatty acid sulfates and fatty acid ester sulphate, described binding agent is one or more in PVP, glucose, sucrose, soluble starch, xanthans, dextrin and land plaster, described filler is one or more in kaolin, attapulgite, diatomite, bentonite, white carbon, precipitated calcium carbonate, corn starch, urea, talcum powder and anhydrous sodium sulfate.
9. Herbicidal combinations according to claim 8, is characterized in that: described dispersant by 2-naphthalene sulfonic acid formaldehyde polymer sodium salt and calcium lignosulfonate in mass ratio 1:4 mix; Described wetting agent by a-alkene sulfonic acid sodium and lauryl sodium sulfate in mass ratio 1:2 mix; Described binding agent by sucrose and xanthans in mass ratio for 4:1 mixes; Described filler is corn starch.
10. the application of the Herbicidal combinations according to any one of claim 1 ~ 9 in management of weeds, is characterized in that: described Herbicidal combinations is used for the citrus orchard that uncultivated area does district or field planting.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110810405A (en) * | 2019-12-03 | 2020-02-21 | 浙江天丰生物科学有限公司 | Rice field weeding granule suitable for flying prevention operation |
| CN112385652A (en) * | 2020-09-21 | 2021-02-23 | 中国农业科学院植物保护研究所 | Slow-release granules suitable for agricultural unmanned aerial vehicle broadcasting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110810405A (en) * | 2019-12-03 | 2020-02-21 | 浙江天丰生物科学有限公司 | Rice field weeding granule suitable for flying prevention operation |
| CN112385652A (en) * | 2020-09-21 | 2021-02-23 | 中国农业科学院植物保护研究所 | Slow-release granules suitable for agricultural unmanned aerial vehicle broadcasting |
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