CN102907439A - Compound farm herbicide - Google Patents
Compound farm herbicide Download PDFInfo
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- CN102907439A CN102907439A CN2012104274482A CN201210427448A CN102907439A CN 102907439 A CN102907439 A CN 102907439A CN 2012104274482 A CN2012104274482 A CN 2012104274482A CN 201210427448 A CN201210427448 A CN 201210427448A CN 102907439 A CN102907439 A CN 102907439A
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- clomazone
- diflufenican
- herbicide
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- weeds
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Abstract
The invention belongs to the field of agricultural herbicide and particularly relates to compound herbicide for prevention of farm weeds. Effective composition comprises diflufenican and clomazone, weight percent of the effective composition in herbicide is 1%-90%, wherein weight ratio of diflufenican and clomazone is 1:2-4. The obtained herbicide is evidently synergistic, and efficacy is increased greatly; efficacy is increased, farm dosage of the effective composition is lowered, production and use costs are reduced, and pesticide residue and environmental pollution are reduced; and the compound far herbicide is composed of effective components of different action mechanisms, action sites are increased, and accordingly production of drug resistance of weeds is overcome and delayed conveniently.
Description
Technical field
The invention belongs to the agricultural herbicide field, particularly a kind of complex weedicide for the weeds in field control.
Background technology
Use chemical weed control and be during farmland weed is prevented and kill off the most effectively means, but the single chemical herbicide of long-term continuously high dose ground use, easily cause residual, environmental pollution and the problems such as weeds drug resistance and resistance development of weed killer herbicide.Development of new kind and rational mixture are the effective ways that addresses the above problem, but it is higher to develop weed killer herbicide new varieties price, so small investment, short built agent of lead time are the first-selections that solves the problems such as weed killer herbicide pesticide resistance, chemical residual.
Diflufenican belongs to the carotenoid biosynthesis inhibitor, is the selectivity cornfield herbicidal of wide spectrum, causes Destruction of Chlorophyll and cell rupture, and plant is dead.To impose on autumn sowing Wheat and barley field before 125～250g/ha bud or behind the bud, prevent and kill off grass family and broad leaved weed, especially clearvers, Veronica and violet weeds.This medicament has following characteristics: broad weed-killing spectrum; But keeping from ill weeds; The drug effect phase is long in the soil; Efficacy stability; Can be mixed with other weed killer herbicides, enlarge the herbicide spectrum.
Clomazone has another name called clomazone, is the selectivity herbicide before seedling stage, and mainly root, the young shoot by plant absorbs, and upwards transporting diffuses to leaf section through xylem, suppresses the chlorophyll of sensitive plant and synthesizing of carotin, forms white seedling, and is dead in a short time.Lasting period is long, and the biologically active of clomazone in soil is sustainable more than 6 months, can be under recommended dose, and selectivity arranges succession crop, avoids poisoning.Applicable to crops such as soybean, sugarcane, potato, peanut, tobacco, paddy rice, rapes.Mainly prevent and kill off annual gramineae and the broad leaved weeds such as barnyard grass, green foxtail, lady's-grass, setaria glauca, eleusine indica, black nightshade, elscholtiza, water sour jujube pin, kitchen garden, piemarker, flowerofanhour root or herb, lamb's-quarters, little lamb's-quarters, penny cress, willow leaf thorn knotweed, pale persicaria, dayflower, Mao pig Xian, wolf tail grass, beggar-ticks, Siberian cocklebur, artemisiifolia.Perennial field thistle, setose thistle, corn sow thistle, meadow pine etc. there is stronger inhibitory action.
At present, when used in above two kinds folk prescription weed killer herbicide field, pesticide resistance, the tolerance of plant were relatively poor.
Summary of the invention
The present invention aims to provide a kind of complex composition, and be made into that resistance risk is little, cost is low, good drug efficacy, the lasting period is long, environmental pollution the is little complex weedicide that is used for the weeds in field control.
Technical scheme of the present invention is: a kind of complex weedicide, its active ingredient are Diflufenican and clomazone.
Described active ingredient Diflufenican and clomazone weight ratio are 1:2～4.
Above-mentioned active ingredient Diflufenican and clomazone all can be buied by various commercial channel.
Weed killer herbicide of the present invention can be prepared into any one formulation that is fit to agricultural use by known method, and formulation is wetting powder, missible oil or suspended emulsion etc. preferably.
In above-mentioned weed killer herbicide, except active ingredient Diflufenican and clomazone, also comprise the Agrotechnical formulation auxiliary element.Active ingredient Diflufenican and the clomazone weight percentage in described weed killer herbicide is 1%～90%, preferred 20%～50%.
Described pesticidal preparations auxiliary element comprises carrier and auxiliary agent.
Described carrier is one or more in water, solvent or the filler, the preferred deionized water of water.
Described solvent is selected from the mixture of one or more compositions in DMF, cyclohexanone, toluene, dimethylbenzene, dimethyl sulfoxide (DMSO), methyl alcohol, ethanol, trimethylcyclohexanone, NOP, 1-METHYLPYRROLIDONE, propyl alcohol, butanols, ethylene glycol, diethylene glycol, ethylene glycol monomethyl ether, butyl ether, ethyl acetate or the acetonitrile.
Described filler is selected from the mixture of one or more compositions in kaolin, diatomite, bentonite, attapulgite, white carbon, starch or the precipitated calcium carbonate.
Described auxiliary agent comprises a kind of surfactant at least, according to different use occasions and demand, also can add other functional aids such as antifreezing agent, thickener, stabilizing agent, disintegrant, defoamer.
Described surfactant is selected from one or more in emulsifier, dispersant, wetting agent or the bleeding agent.Above-mentioned surfactant is common non-ionic surface active agent or single dose or the complex preparation of anion surfactant.
Described other functional aids are selected from antifreezing agent, thickener, stabilizing agent, disintegrant or the defoamer one or more.
Described emulsifier is selected from agricultural newborn 500#(alkyl benzene calcium sulfonate), OP series phosphate (polyoxyethylene nonylphenol ether phosphate), 600# phosphate (phenyl phenol polyoxyethylene ether phosphate), styrene polyoxyethylene ether ammonium sulfate salt, alkyl biphenyl ether disulfonic acid magnesium salts, triethanolamine salt, the newborn 400#(benzyl dimethyl phenol polyoxy ethyl ether of farming), Nongru-700 #(alkylphenol-formaldehyde resin polyoxy ethyl ether), peaceful newborn 36#(phenethyl fluosite polyoxy ethyl ether), the newborn 1600#(phenethyl phenol polyoxy ethyl polypropylene-base ether of farming), ethylene oxide-propylene oxide block copolymer, OP series (polyoxyethylene nonylphenol ether), BY series (castor oil polyoxyethylene ether), the newborn 33#(alkylaryl polyoxyethylene poly-oxygen propylene aether of farming), sapn series (sorbitol anhydride monostearate), the mixture of one or more compositions in tween series (anhydrous sorbitol resin acid ester APEO) or the AEO series (fatty alcohol-polyoxyethylene ether).
Described dispersant is selected from the mixture of one or more compositions in polycarboxylate, lignosulfonates, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, alkyl benzene calcium sulfonate, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, aliphatic amine polyoxyethylene ether, aliphatic acid polyethenoxy ether or the fatty acid glyceride APEO.
Described wetting agent is selected from the mixture of one or more compositions in lauryl sodium sulfate, neopelex, Nekal BX, wetting and penetrating agent F, spaonin powder, silkworm excrement or the soapberry powder.
Described thickener is selected from the mixture of one or more compositions in xanthans, polyvinyl alcohol, bentonite, carboxymethyl cellulose or the aluminium-magnesium silicate.
Described antifreezing agent is selected from the mixture of one or more compositions in ethylene glycol, propane diols, glycerine or the urea.
Described defoamer is selected from the mixture of one or more compositions in silicone oil, silicone compound, C10-C20 saturated fat acid compounds or the C8-C10 aliphatic alcohols compound.
Described disintegrant is selected from the mixture of one or more compositions in bentonite, urea, ammonium sulfate, aluminium chloride, low-substituted hydroxypropyl cellulose, lactose, citric acid, succinic acid or the sodium bicarbonate.
Material described above all can be buied by market.
Herbicidal composition provided by the invention is used for the weeds such as control wheat paddock, garlic field barnyard grass, lady's-grass, green foxtail, moleplant seed, eleusine indica, clearvers, kitchen garden, amaranth, lamb's-quarters, piemarker, black nightshade, cyperus iria, difformed galingale herb, and can reduce the application dosage of each active ingredient, reduce cost, reduce and pollute.
Beneficial effect of the present invention is:
1, broad weed-killing spectrum, it all has preferably preventive effect to field grassy weed, broad leaved weed and nutgrass flatsedge, and is especially good to the malignant weed preventive effect that is difficult to prevent and kill off;
2, synergistic effect is obvious, and drug effect significantly improves;
3, drug effect improves, and the field consumption of active ingredient descends, and has reduced production and use cost, reduces residue of pesticide and environmental pollution;
4, the active ingredient by different mechanism of action forms, and action site increases, and is conducive to overcome and delay the generation of herbicide resistance.
Embodiment
At first indoor measurement Diflufenican proportionings different from clomazone are to the virulence coefficient of clearvers.Test method is as follows: at the indoor pot clearvers, treat that the clearvers cotyledon launches and grow 1～2 true leaf fully, be used for chemicals treatment.The spray medicine was counted each clearvers survival number and death toll of processing in 14 days afterwards, calculated lethality.Calculate virulence regression equation formula and the LD50 value of medicament with probability value method, and press the abundant method of Sun Yun and calculate co-toxicity coefficient, determine whether synergistic effect is arranged between compound drug and the single dose: co-toxicity coefficient shows between each component that less than 80 antagonism is arranged; Less than 120, showing has summation action between the component greater than 80; Show that greater than 120 synergistic effect is arranged between the component, result of the test is as shown in table 1.Following ratio is weight ratio.
Table 1 Diflufenican and the composite different proportionings of clomazone are to clearvers toxicity measurement result
| Medicament | Virulence regression equation | LD50 value (ug/ml) | Co-toxicity coefficient |
| Diflufenican | Y=2.1932+1.8342x | 198.976 | —— |
| Clomazone | Y=3.0287+1.7773x | 154.218 | —— |
| Diflufenican: clomazone=1:0.5 | Y=2.0321+1.2371x | 183.461 | 89.71 |
| Diflufenican: clomazone=1:1 | Y=2.6445-3.0012x | 170.846 | 93.89 |
| Diflufenican: clomazone=1:2 | Y=1.5487+2.0032x | 93.846 | 169.72 |
| Diflufenican: clomazone=1:2.5 | Y=1.8652-3.0212x | 100.326 | 148.32 |
| Diflufenican: clomazone=1:3 | Y=2.3447+1.5065x | 106.846 | 134.27 |
| Diflufenican: clomazone=1:4 | Y=1.8797+1.7382x | 115.324 | 123.98 |
| Diflufenican: clomazone=1:5 | Y=1.7963+1.7654x | 123.846 | 119.97 |
| Diflufenican: clomazone=1:6 | Y=2.6732-2.1187x | 140.323 | 115.56 |
| Diflufenican: clomazone=1:7 | Y=3.0045+1.2239x | 151.846 | 104.45 |
| Diflufenican: clomazone=1:8 | Y=1.7433+1.8931x | 163.4344 | 99.71 |
As can be seen from Table 1: Diflufenican and clomazone weight ratio be 1:2～4 o'clock co-toxicity coefficient all greater than 120, show as synergistic effect, synergy is the most obvious when 1:2.The application weight ratio is that the Diflufenican of 1:2～4 and the complex preparation control clearvers of clomazone have reasonability and feasibility.
Adopt said method to measure respectively that it is active to barnyard grass, lady's-grass, kitchen garden, piemarker and difformed galingale herb, and calculate the co-toxicity coefficient in the different ratio ranges, all drawing Diflufenican and clomazone is the conclusion that 1:2～4 o'clock show as synergistic effect in weight ratio.
Specify the present invention below in conjunction with embodiment.Percentage all is weight percentage among the embodiment, and the treatment dosage of field efficacy is effective ingredient consumption.
Embodiment 1:(30% Diflufenican clomazone wetting powder)
Component and content: Diflufenican, 10%; Clomazone, 20%; Wetting agent lauryl sodium sulfate, 1%; Dispersant calcium lignosulfonate, 3%; Emulsifier farming newborn 33#, 5%; Filler is selected white carbon, 20%, kaolin, surplus.
Embodiment 2:(40% Diflufenican clomazone wetting powder)
Component and content: Diflufenican, 10%; Clomazone, 30%; Wetting agent is selected Nekal BX, neopelex and wetting and penetrating agent F, and consumption is respectively 3%, 5% and 1%; Dispersant is selected polycarboxylate and fatty acid glyceride APEO, and consumption is respectively 2% and 3%; Filler selects filler to select white carbon, 35%, the diatomite surplus.
The preparation method of above-described embodiment 1～embodiment 2 is: the component and the percentage by weight thereof that provide by embodiment, active ingredient Diflufenican and clomazone are added in the filler, and add therein the auxiliary agents such as wetting agent, dispersant, emulsifier, mix, behind air-flow crushing, mix again making wetting powder.Capital equipment has mixer, airslide disintegrating mill.
Embodiment 3:(20% Diflufenican clomazone missible oil)
Component and content: Diflufenican, 4%; Clomazone, 16%; Emulsifier is selected agricultural newborn 500# and agricultural newborn 600#, and consumption is respectively 4% and 5%; Solvent is selected DMF, 20%, dimethylbenzene, surplus.
The preparation method of above-described embodiment 3 is: the component and the percentage by weight thereof that provide by embodiment, and active ingredient Diflufenican and clomazone are added in the solvent, and add therein the auxiliary agent such as emulsifier, in mixing still, mix and get final product.Mix still and can select enamel reaction still, stainless steel stirred tank etc.
Embodiment 4:(50% Diflufenican clomazone suspended emulsion)
Component and content: Diflufenican 14.3%; Clomazone, 35.7%; Emulsifier is selected polyoxyethylene nonylphenol ether phosphate and castor oil polyoxyethylene ether, and consumption is respectively 4% and 3%; Thickener is selected xanthans and aluminium-magnesium silicate, and consumption is respectively 0.1% and 1%; Solvent xylene, 3%; Water, surplus.
The preparation method of above-described embodiment 4 is: the component and the percentage by weight thereof that provide by embodiment, the active ingredient Diflufenican is added in the solvent, and add therein the auxiliary agents such as emulsifier, thickener, carry out the wet method sand milling, being mixed with needs the Diflufenican of content suspending agent, then this suspending agent is added to by a certain percentage in the clomazone emulsion of certain content, carry out high speed shear, can obtain the composite suspended emulsion product of Diflufenican and clomazone, capital equipment is batching kettle, emulsify at a high speed clipper, sand mill.
The below uses embodiment 1, embodiment 3, embodiment 4 to carry out field control effectiveness test with Comparative Examples 1, Comparative Examples 2 for the garlic field weed, so that beneficial effect of the present invention to be described better.Wherein, embodiment 1:30% Diflufenican clomazone wetting powder; Embodiment 3:20% Diflufenican clomazone missible oil; Embodiment 4:50% Diflufenican clomazone suspended emulsion; Comparative Examples 1:50% Diflufenican wetting powder; Comparative Examples 2:48% clomazone missible oil.
Establish embodiment 1,3,4 medicaments in the test of this field, Comparative Examples 1,2 medicaments and do not make with medicament totally 12 processing, each is processed and repeats 4 times, processes residential quarters for totally 48, after planting carries out the soil spraying in garlic.Every processing residential quarter is got 3 points, every some 0.33m at random
2, the healthy strain number of 20 days, 40 days investigation each point various weeds after medication respectively, behind the medicine 40 days in investigation weeds strain number, investigation fresh weight preventive effect.The result is shown in table 2～4.
Prevented and kill off garlic field weed strain preventive effect (%) behind table 2 medicine in 20 days
Prevented and kill off garlic field weed strain preventive effect (%) behind table 3 medicine in 40 days
Prevented and kill off the bright careless preventive effect (%) of garlic field weed behind table 4 medicine in 40 days
Can find out from the result of the test of table 2～4, behind the medicine behind 20 days and the medicine 40 days, embodiment 1 per hectare use active ingredient 25 grams are above, embodiment 3 per hectares are used more than active ingredient 30 grams, embodiment 4 per hectares are used more than active ingredient 30 grams, the strain preventive effect of lady's-grass, eleusine indica, Amaranthus retroflexus and kitchen garden and fresh weight preventive effect all are significantly higher than Comparative Examples 1 per hectare use active ingredient 60 grams and Comparative Examples 2 per hectares to use active ingredient 36 grams, show to have significant synergies after composite by pyrrole flutolanil and clomazone.Duration of test is observed, and garlic is without symptom of chemical damage, and test medicine is to garlic safety.
Claims (5)
1. a field complex weedicide is characterized in that, its active ingredient is that Diflufenican and clomazone are composite, and both weight ratios are 1:2～4.
2. complex weedicide according to claim 1 is characterized in that, described active ingredient Diflufenican and the weight percentage of clomazone in described complex weedicide are 1%～90%, and all the other are the pesticidal preparations auxiliary element.
3. complex weedicide according to claim 2 is characterized in that, described active ingredient Diflufenican and clomazone shared total weight percentage in described weed killer herbicide is 20%～50%.
4. complex weedicide according to claim 2 is characterized in that, described pesticidal preparations auxiliary element comprises carrier and auxiliary agent.
5. complex weedicide according to claim 2 is characterized in that, its formulation is a kind of in suspended emulsion, wetting powder or the missible oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104274482A CN102907439A (en) | 2012-10-31 | 2012-10-31 | Compound farm herbicide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104274482A CN102907439A (en) | 2012-10-31 | 2012-10-31 | Compound farm herbicide |
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| Publication Number | Publication Date |
|---|---|
| CN102907439A true CN102907439A (en) | 2013-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012104274482A Pending CN102907439A (en) | 2012-10-31 | 2012-10-31 | Compound farm herbicide |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107156162A (en) * | 2017-06-14 | 2017-09-15 | 合肥助航生态农业科技有限公司 | Compound farm herbicide |
| CN107372587A (en) * | 2017-08-01 | 2017-11-24 | 安徽誉秀农业科技有限公司 | A kind of high-new achievements in forest-tree seedling complex weedicide |
| CN109006826A (en) * | 2018-08-07 | 2018-12-18 | 安徽丰乐农化有限责任公司 | A kind of direct-sowing dry paddy field broadcasts the complex weedicide containing diflufenican before rear seedling |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU8193198A (en) * | 1998-08-28 | 2000-03-16 | Rhone-Poulenc Agro | Herbicidal compositions |
| WO2010046434A1 (en) * | 2008-10-22 | 2010-04-29 | Basf Se | Use of bleacher herbicides on cultivated plants |
| BE1018402A3 (en) * | 2009-07-16 | 2010-10-05 | Globachem | SYNERGY BETWEEN QUINMERAC, CLOMAZONE AND DIFLUFENICAN IN HERBICID COMPOSITIONS FOR COMBATING WEED IN AGRICULTURAL AND HORTICULTURAL CROPS. |
-
2012
- 2012-10-31 CN CN2012104274482A patent/CN102907439A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU8193198A (en) * | 1998-08-28 | 2000-03-16 | Rhone-Poulenc Agro | Herbicidal compositions |
| WO2010046434A1 (en) * | 2008-10-22 | 2010-04-29 | Basf Se | Use of bleacher herbicides on cultivated plants |
| BE1018402A3 (en) * | 2009-07-16 | 2010-10-05 | Globachem | SYNERGY BETWEEN QUINMERAC, CLOMAZONE AND DIFLUFENICAN IN HERBICID COMPOSITIONS FOR COMBATING WEED IN AGRICULTURAL AND HORTICULTURAL CROPS. |
Non-Patent Citations (1)
| Title |
|---|
| 顾群 等: "吡啶酰胺类除草剂-吡氟酰草胺", 《现代农药》, vol. 9, no. 1, 28 February 2010 (2010-02-28), pages 42 - 45 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107156162A (en) * | 2017-06-14 | 2017-09-15 | 合肥助航生态农业科技有限公司 | Compound farm herbicide |
| CN107372587A (en) * | 2017-08-01 | 2017-11-24 | 安徽誉秀农业科技有限公司 | A kind of high-new achievements in forest-tree seedling complex weedicide |
| CN109006826A (en) * | 2018-08-07 | 2018-12-18 | 安徽丰乐农化有限责任公司 | A kind of direct-sowing dry paddy field broadcasts the complex weedicide containing diflufenican before rear seedling |
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Application publication date: 20130206 |