CN102342277A - Herbicidal composition containing diflufenican and bromoxynil - Google Patents
Herbicidal composition containing diflufenican and bromoxynil Download PDFInfo
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- CN102342277A CN102342277A CN2011102092023A CN201110209202A CN102342277A CN 102342277 A CN102342277 A CN 102342277A CN 2011102092023 A CN2011102092023 A CN 2011102092023A CN 201110209202 A CN201110209202 A CN 201110209202A CN 102342277 A CN102342277 A CN 102342277A
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Abstract
The invention relates to an herbicidal composition containing diflufenican and bromoxynil. The composition is characterized in that: the herbicidal composition comprises 1% to 60% of diflufenican, 1% to 80% of bromoxynil, and balance of auxiliary agents. The composition can be prepared into wettable powders, water-dispersible granules, suspensions, suspending emulsions, aqueous emulsions, and micro-emulsions. The herbicidal composition provided by the invention is used for controlling wheat field weeds. With the herbicidal composition, pesticide dosage can be reduced, and pesticide residue can be reduced. The environmental compatibility of the composition is good, and the composition is safe to human and animals.
Description
Technical field
The invention belongs to technical field of pesticide, be specifically related to a kind of Herbicidal combinations that contains diflufenican and Brominal, be used to prevent and treat the wheat paddock weeds.
Background technology
The direction of pesticide developing was to embody efficient, low toxicity, low-residual and pollution-free in recent years.Be embodied in pursuit " three height ", promptly (1) is safe, and this not only requires toxicity low, and is residual low, and nuisanceless; (2) biologically active is high; (3) selectivity is high.Therefore continue to improve the performance of present Pesticidal products, reach efficient, low toxicity, free of contamination requirement.So, select the agricultural chemicals of composite mixture just to become current first-selection and a kind of valid approach, make the agricultural chemicals of performance complement obtain best synergistic effect through the proportioning of adjusting different agricultural chemicals.
Diflufenican (diflufenican), molecular formula: C
19H
11F
5N
2O
2, chemical name: N-(2, the 4-difluorophenyl)-2-(3-4-trifluoromethylphenopendant)-3-pyridine anilide.Diflufenican is used the medicine soil layer that can form anti-leaching at the soil table before and after weeds germinate, keep active in the crop whole growth phase.When weed germination all can absorb medicament through medicine soil layer young shoot or root system; This agent has the carotenoid of inhibition biosynthesis effect; Carotenoid content descends in the weeds plant of absorption medicament; Cause chlorophyll to be destroyed; Membranolysis; Weeds then show as young shoot decolouring or white, and whole at last strain is wilted dead.Most of broad leaved weed crop Tanakas such as wheat, paddy rice, some legume (like white plumage French beans and spring sowing pea), carrot, sunflowers.
Brominal (bromoxynil), molecular formula: C
7H
3Br
2NO, chemical name: 3,5-two bromo-4-carbonyls-1-cyanic acid benzene.This medicine is that cauline leaf is handled the contact killing type weed killer herbicide behind the selectivity seedling.Mainly absorb, in plant, carry out extremely limited conduction, make plant tissue downright bad rapidly through suppressing photosynthetic each process via blade.Necrotic plaque appears in 24 hours intra vane chlorisis of dispenser.Under the strong condition of, illumination higher at temperature, speeding-up blade is withered.Be applicable to that crop fields such as wheat, barley, rye, corn, Chinese sorghum, flax prevent and kill off broad leaved weed knotweed, lamb's-quarters, amaranth, conical silene herb, black nightshade, Siberian cocklebur, salsola collina, corn gromwell, field bindweed, corn-bind etc.
The chemical composition of each weed killer herbicide, structure and physicochemical property all are distinguishing.They kill careless ability and scope is also different, it is narrower that some weed killer herbicide kills the grass spectrum, but have one's own knack, and can eradicate the weeds that other weed killer herbicide is difficult to eliminate.Therefore; The composite important directions that also becomes domestic and international research new herbicides of using with of weed killer herbicide, China also comparatively payes attention to using with aspect the research of weed killer herbicide, is recognized extensively that to do be one of important measures of rationally using of weed killer herbicide; Work out a series of Herbicidal compositions, obtained bigger progress.
My company also is devoted to the research and development of Herbicidal compositions.At present, do not appear in the newspapers with the relevant composite product of Brominal about diflufenican.
Summary of the invention
The purpose of this invention is to provide a kind of Herbicidal combinations that contains diflufenican and Brominal of preventing and treating the wheat paddock weeds.
Technical scheme of the present invention is:
A kind of Herbicidal combinations that contains diflufenican and Brominal is characterized in that: Herbicidal combinations contains effective composition diflufenican 1%～60%, Brominal 1%～80%, auxiliary agent surplus.
The described Herbicidal combinations that contains diflufenican and Brominal is characterized in that: Herbicidal combinations contains diflufenican 2%～40%, Brominal 4%～60%, auxiliary agent surplus.
The described Herbicidal combinations that contains diflufenican and Brominal is characterized in that: Herbicidal combinations contains diflufenican 4%～30%, Brominal 6%～50%, auxiliary agent surplus.
The described Herbicidal combinations that contains diflufenican and Brominal is characterized in that: composition is processed wetting powder, water dispersible granules, suspending agent, suspension emulsion, aqueous emulsion, microemulsion.
The described Herbicidal combinations that contains diflufenican and Brominal is used to prevent and treat the purposes of wheat paddock weeds.
Described purposes is characterized in that, described wheat paddock weeds comprise: clearvers, grandmother's sodium, kitchen garden, Amaranthus retroflexus, lamb's-quarters, barnyard grass grass, wild oat, green foxtail, chickweed, descurainia sophia (l.) webb ex prantl.
The said Herbicidal combinations that contains diflufenican and Brominal is characterized in that: comprise following constituent content when processing wetting powder: diflufenican 1%～80%, Brominal 1%～60%, dispersant 5%～10%, wetting agent 2%～10%, filler 8%～92%.
Active ingredient diflufenican, Brominal, dispersant, wetting agent, filler are mixed, in mixed cylinder, mix, after airslide disintegrating mill is pulverized, mix again, promptly can be made into diflufenican Brominal wetting powder product.
The said Herbicidal combinations that contains diflufenican and Brominal is characterized in that: comprise following constituent content when composition is processed water dispersible granules: diflufenican 1%～80%, Brominal 1%～60%, dispersant 3%～12%, wetting agent 1%～8%, disintegrant 1%～10%, filler 10%～95%.
Diflufenican, Brominal, dispersant, wetting agent, disintegrant, filler etc. are obtained the particle diameter that needs through comminution by gas stream together, obtain the materials of granulating.It is interior through after granulation and the drying to expect that article are quantitatively sent the fluidized bed granulation dryer to, makes diflufenican Brominal water dispersible granules product.
The said Herbicidal combinations that contains diflufenican and Brominal is characterized in that: comprise following constituent content when composition is processed suspending agent: diflufenican 1%～50%, Brominal 1%～40%, dispersant 2%～10%, wetting agent 2%～10%, defoamer 0.1%～1%, thickener 0.1%～2%, emulsifier 0.5%～8%, deionized water add to 100%.
Dispersant, wetting agent, defoamer, thickener, antifreeze in the above-mentioned batching are mixed through high speed shear; Add diflufenican, the former medicine of Brominal; Ball milling is 2～3 hours in ball mill, makes diameter of particle all below 5 μ m, makes suspending agent product of the present invention.
The said Herbicidal combinations that contains diflufenican and Brominal; It is characterized in that: comprise following constituent content when composition is processed suspension emulsion: diflufenican 1%～50%, Brominal 1%～40%, emulsifier 2%～12%, dispersant 2%～10%, defoamer 0.1%～2%, thickener 0.1%～2%, antifreeze 0.1%～8%, stabilizing agent 0.05%～3%, deionized water add to 100%.
Dispersant, defoamer, thickener, antifreeze, stabilizing agent in the above-mentioned formulation material are mixed through high speed shear; Add the former medicine of diflufenican; Ball milling is 2～3 hours in ball mill; Make diameter of particle all below 5 μ m; Make the diflufenican suspending agent; Then with the former medicine of Brominal, emulsifier and various auxiliary agent with the direct emulsification of high speed agitator in suspending agent, make suspension emulsion product of the present invention.
Comprise following constituent content when composition is processed aqueous emulsion: diflufenican 1%～50%, Brominal 1%～40%, solvent 0%～30%, emulsifier 1%～15%, co-emulsifier 0%～8%, antifreeze 0%～10%, thickener 0.1%～2%, defoamer 0.01%～2%, deionized water are supplied surplus.
Above-mentioned prescription is mixed, active ingredient, solvent, emulsifier, co-emulsifier are added together, make and be dissolved into even oil phase; Water, antifreeze, thickener, defoamer are mixed, become the homogeneous water.Under high-speed stirred, water is added oil phase, make aqueous emulsion product of the present invention.
Comprise following constituent content when composition is processed microemulsion: diflufenican 1%～50%, Brominal 1%～40%, solvent 0%～30%, emulsifier 3%～20%, co-emulsifier 0%～12%, antifreeze 0%～10%, thickener 0.1%～2%, defoamer 0.01%～2%, stabilizing agent 0%～4%, deionized water is supplied surplus.
Diflufenican and the former medicine of Brominal are dissolved in the homogenizer that solvent and cosolvent are housed; Give intense mixing and homogenize after joining emulsifier, stabilizing agent and antifreeze, water in the homogenizer that above-mentioned solution is housed, obtain the as clear as crystal microemulsion product of the present invention of outward appearance at last.
Described dispersant is selected from alkylnaphthalene sulfonate; Two (alkyl) naphthalenesulfonate formaldehyde condensation compound; Naphthalene sulfonic acid-formaldehyde condensation product; Aryl phenol polyoxyethylene succinate sulfonate; Octylphenol polyethylene oxyethylene group ether sulfate; Polycarboxylate; Lignosulfonates; The phonetic formaldehyde condensation products sulphate of alkylphenol-polyethenoxy; Alkyl benzene sulfonate calcium salt; The naphthalene sulfonic acid-formaldehyde condensation product sodium salt; Alkylphenol-polyethenoxy is phonetic; Aliphatic amine polyoxyethylene is phonetic; Polyoxyethylene carboxylate; During the ester polyoxyethylene is phonetic one or more.
Described wetting agent is selected from: lauryl sodium sulfate, neopelex, Nekal BX, washing powder, farming breast 2000
#Series, sldium lauryl sulfate, wetting and penetrating agent F, wetting agent T, spaonin powder, tea are withered, in the silkworm excrement, soapberry powder one or more.
Described disintegrant is selected from: one or more in bentonite, urea, ammonium sulfate, aluminium chloride, the glucose.
Described emulsifier is selected from: farming breast 500
#(alkyl benzene calcium sulfonate), OP series phosphate (polyoxyethylene nonylphenol ether phosphate), 600
#Phosphate (phenyl phenol polyoxy ethyl ether phosphate), styrene polyoxyethylene ether ammonium sulfate salt, alkyl biphenyl ether disulfonic acid magnesium salts, triethanolamine salt, farming breast 400
#(benzyl dimethyl phenol polyoxy ethyl ether), farming breast 600
#(phenyl phenol polyoxy ethyl ether), Nongru-700
#(alkylphenol-formaldehyde resin polyoxy ethyl ether), farming breast 36
#(phenethyl fluosite polyoxy ethyl ether), farming breast 1600
#(phenethyl phenol polyoxy ethyl polypropylene-base ether), ethylene oxide-propylene oxide block copolymer, OP series (polyoxyethylene nonylphenol ether), By series (castor oil polyoxyethylene ether), farming breast 33
#(alkylaryl polyoxyethylene polyoxypropylene ether), farming breast 34
#In (alkylaryl polyoxyethylene poly-oxygen propylene aether), sapn series (sorbitan monostearate), tween series (sorbitan fatty acid ester APEO), the EO series (the pure APEO of fat) one or more.
Described antifreeze is selected from: one or more in ethylene glycol, propane diols, glycerine, the polyethylene glycol.
Described defoamer is selected from: silicone, C
8～10Aliphatic alcohols, C
10～20In saturated fat acids (like capric acid) and acid amides, silicone oil, the silicone compound one or more.
Described thickener is selected from: one or more in xanthans, CMC, hydroxyethylcellulose, methylcellulose, Magnesiumaluminumsilicate, the polyvinyl alcohol.
Described filler is selected from: one or more in kaolin, diatomite, bentonite, attapulgite, white carbon, starch, precipitated calcium carbonate, the vegetable oil.
Wetting powder the key technical indexes of the present invention:
Suspending agent the key technical indexes of the present invention:
Suspension emulsion the key technical indexes of the present invention:
Aqueous emulsion the key technical indexes of the present invention:
Microemulsion the key technical indexes of the present invention:
Herbicidal combinations of the present invention compared with prior art produces following beneficial effect:
(1) enlarges grass spectrum extremely, improve preventive effect, and improve this season crop yield;
(2) prolong the optimum period for applying fertilizer, reduce poisoning, reduce residual activity, delay drug-fast generation of weed killer herbicide and development;
(3) remarkably productive to weeds such as the clearvers of wheat paddock, grandmother's sodium, deaf nettle, kitchen garden, Amaranthus retroflexus, volume stem amaranth, field bindweed, scentless mayweed, knotweed, barnyard grass grass, wild oat, green foxtail, chickweed, descurainia sophia (l.) webb ex prantl.
Embodiment
Below in conjunction with embodiment the present invention is further illustrated.
Practice example one:
Diflufenican and Brominal are mixed to the active determination test report of wheat paddock weeds
Test objective: under the greenhouse pot culture condition, measured diflufenican and Brominal and different blended combo thereof and closed herbicidal effect to broad leaved weeds; And estimated its synergy, for the formulation development and the agriculture chemical registration field control effectiveness test of Mixed Pharmacy provides scientific basis.
Supply the examination target: broad leaved weeds.
Test medicine: diflufenican (diflufenican) 98% former medicine, Brominal (bromoxynil) 97% former medicine, agricultural chemicals Co., Ltd of U.S. nation provides by Shaanxi.
The medicament configuration:
Diflufenican solution: accurately take by weighing the former medicine of 0.0467g 98% diflufenican; Dissolve with the 1mL cyclohexanone; Add the clear water 400mL that contains 0.1% agricultural newborn 600#; Stir; Be configured to diflufenican 180g (a.i.)/ha solution, again with clear water be diluted to 100,60g (a.i.)/ha concentration is subsequent use.
Brominal solution: accurately take by weighing the former medicine of 0.1572g 97% Brominal; With the dissolving of 1mL cyclohexanone, add the clear water 400mL that contains 0.1% agricultural newborn 600#, stir; Be configured to Brominal 600g (a.i.)/ha solution, again with clear water be diluted to 400,300g (a.i.)/ha concentration is subsequent use.
Blank solution: the 1mL vegetable oil adds the water of 400mL 0.1% agricultural newborn 600#.
Test method: adopt potted plant cauline leaf facture (NY/T 1155.4-2006): the amount of setting soil in the polypots of high 6cm, diameter 9cm; To supply 15～20 sowings of examination target weed seed in polypots; Be placed on cultivation in the greenhouse after covering the thick fine earth of 0.5～1cm; Treat that weeds grew to for 2～4 leaf phases and carry out cauline leaf spraying processing; Every alms bowl spraying liquid 1mL; Every processing repetition 4 times, and establish the contrast that is treated to that does not contain medicament.Processing is placed in the greenhouse cultivates, the growing state of routine observation target weeds, and be injured symptom and growth inhibition situation of range estimation target behind the 15d, and claim acrial part fresh weight or strain fresh weight, estimate the toxicity action of medicament with form fresh weight inhibiting rate to the target weeds.
Investigation method:
Range estimation target be injured symptom and growth inhibition situation are handled behind the 15d in test, and claim to calculate fresh weight inhibiting rate (%) by the acrial part fresh weight.
The synergy evaluation method:
Estimate weed killer herbicide synergy mode (NY/T 1155.7-2006) according to the Gowing method, its formula is following:
E
0＝X+Y-XY/100
In the formula, X is that diflufenican is with the fresh weight inhibiting rate of certain dosage list time spent to the target weeds;
Y is a Brominal or with the fresh weight inhibiting rate of certain dosage list time spent to the target weeds;
E
0During for diflufenican and Brominal or two kinds of pharmacy mix to the theoretical value of target weeds fresh weight inhibiting rate;
When E is diflufenican and Brominal or two kinds of pharmacy mix to the measured value of target weeds fresh weight inhibiting rate.
Evaluation criterion: work as E-E
0Be expressed as synergistic effect at＞10% o'clock, as-10%≤E-E
0Be expressed as summation action, and worked as E-E in≤10% o'clock
0Be expressed as antagonism at＜-10% o'clock.
Table 1 diflufenican and Brominal and the toxicity test result of combination that be mixed thereof to broad leaved weeds
Evaluating drug effect: diflufenican and Brominal and the composition that is mixed thereof are measured the result to the herbicidal effect of broad leaved weeds and are seen table 1.It is thus clear that diflufenican and Brominal show synergistic effect to broad leaved weeds, its E-E with 20+200,20+400,20+600,100+200,100+400,100+600,180+200,180+400, the 180+600 composition that is mixed
0Value is respectively 11.89,13.95,14.63,15.41,22.27,12.89,14.74,13.55,11.89, and is wherein best to the effect of broad leaved weeds with the composition that is mixed of 100+400, its E-E
0Value is 22.27.
Application implementation example two: the composite product embodiments of diflufenican and Brominal (following content is folding hundred percentage compositions).
Embodiment 1 80% diflufenican Brominal wetting powder
Diflufenican 5%, Brominal 75%, polyoxyethylene carboxylate 6.3%, lignosulfonates 4.2%, tea are withered 3.5%, bentonite adds to 100%, and mixture carries out comminution by gas stream, makes 80% diflufenican Brominal wetting powder.
Embodiment 2 65% diflufenican Brominal wetting powders
Diflufenican 5%, Brominal 60%, naphthalene sulfonic acid-formaldehyde condensation product 6.6%, wetting agent T 4.4%, white carbon 4%, kaolin adds to 100%, and mixture carries out comminution by gas stream, makes 65% diflufenican Brominal wetting powder.
Embodiment 3 50% diflufenican Brominal wetting powders
Diflufenican 5%, Brominal 45%, naphthalene sulfonic acid-formaldehyde condensation product sodium salt 5.5%, lauryl sodium sulfate 4.5%, wetting agent T4%, kaolin add to 100%, and mixture carries out comminution by gas stream, make 50% diflufenican Brominal wetting powder.
Embodiment 4 70% diflufenican Brominal water dispersible granules
Diflufenican 10%, Brominal 60%, aryl phenol polyoxyethylene succinate sulfonate 6.5%, sldium lauryl sulfate 3.5%, urea 5%, xanthans 1.5%, kaolin add to 100%, the mixed 70% diflufenican Brominal water dispersible granules that gets.
Embodiment 5 56% diflufenican Brominal water dispersible granules
Diflufenican 8%, Brominal 48%, farming breast 2000
#Series 6.5%, octylphenol polyethylene oxyethylene group ether sulfate 5.5%, ammonium sulfate 2.5%, polyvinyl alcohol 2.5%, white carbon 5%, starch add to 100%, the mixed 56% diflufenican Brominal water dispersible granules that gets.
Embodiment 6 42% diflufenican Brominal water dispersible granules
Diflufenican 7%, Brominal 35%, two (alkyl) naphthalenesulfonate formaldehyde condensation compound 6.5%, tea are withered 4.5%, aluminium chloride 3.5%, kaolin add to 100%, mixed 42% diflufenican Brominal water dispersible granules.
Embodiment 7 45% diflufenican Brominal suspending agents
Diflufenican 3%, Brominal 42%, alkylnaphthalene sulfonate 7%, silkworm excrement 4.8%, polyvinyl alcohol 2.2%, C
8～10Aliphatic alcohols 2.8%, deionized water add to 100%, the mixed 45% diflufenican Brominal suspending agent that gets.
Embodiment 8 36% diflufenican Brominal suspending agents
Diflufenican 6%, Brominal 30%, aryl phenol polyoxyethylene succinate sulfonate 6%, lignosulfonates 4%, silicone defoamer 3.5%, aluminium-magnesium silicate 1.5%, phenyl phenol polyoxy ethyl ether phosphate 5%, deionized water add to 100%, the mixed 36% diflufenican Brominal suspending agent that gets.
Embodiment 9 25% diflufenican Brominal suspending agents
Diflufenican 5%, Brominal 20%, lignosulfonates 5%, wetting and penetrating agent F5%, C
8～10Aliphatic alcohols 2.5%, gum Arabic 3.5%, deionized water add to 100%, the mixed 25% diflufenican Brominal suspending agent that gets.
Embodiment 10 44% diflufenican Brominal suspension emulsions
Diflufenican 4%, Brominal 40%, aryl phenol polyoxyethylene succinate sulfonate 7.6%, phenethyl phenol polyoxy ethyl polypropylene-base ether 3.4%, silicone compound 5%, polyethylene glycol 1.2%, ethylene glycol 1.8%, deionized water add to 100%, the mixed 44% diflufenican Brominal suspension emulsion that gets.
Embodiment 11 32% diflufenican Brominal suspension emulsions
Diflufenican 4%, Brominal 28%, ester polyoxyethylene are phonetic 5.5%, tea is withered 3.5%, polyvinylpyrrolidone 3.6%, farming breast 1600
#4.6%, glycerine 4.4%, C
8～10Aliphatic alcohols 0.8%, deionized water add to 100%, through the mixed 32% diflufenican Brominal suspension emulsion that gets.
Embodiment 12 15% diflufenican Brominal suspension emulsions
Diflufenican 5%, dichloropyridine 10%, alkyl benzene sulfonate calcium salt 7.5%, soapberry powder 3.5%, phenyl phenol polyoxy ethyl ether 2.5%, sorbitan monostearate 3.5%, carboxymethyl cellulose 1.5%, glycerine 2%, deionized water add to 100%, the mixed 15% diflufenican Brominal suspension emulsion that gets.
Embodiment 13 38% diflufenican Brominal microemulsions
Diflufenican 6%, Brominal 32%, farming breast 600
#7.5%, ethylene glycol monomethyl ether 2.5%, polyethylene glycol 5.5%, C
8～10Aliphatic alcohols 2.5%, deionized water adds to 100%, through the mixed 38% diflufenican Brominal microemulsion that gets.
Embodiment 14 22% diflufenican Brominal microemulsions
Diflufenican 6%, Brominal 16%, agricultural newborn 400#5.5%, methyl alcohol 4.5%, aliphatic alcohol polyoxyvinethene phosphate 6%, propane diols 3%, gelatin 1.5%, deionized water supplies 100%, the mixed 22% diflufenican Brominal microemulsion that gets.
Embodiment 15 15% diflufenican Brominal microemulsions
The pure APEO of diflufenican 7.5%, Brominal 7.5%, fat 6%, alkylbenzenesulfonate 3%, phenethyl phenol polyethenoxy ether phosphate 5%, propane diols 4%, butyl ether 2%; Deionized water supplies 100%, the mixed 15% diflufenican Brominal microemulsion that gets.
Embodiment 16 36% diflufenican Brominal aqueous emulsions
Diflufenican 6%, Brominal 30%, castor oil polyoxyethylene ether 7%, OP series 5%, gelatin 2%, glycerine 4%, sodium chloride 2%, silicone oil 2.5%, deionized water supplies 100%, makes 36% diflufenican Brominal aqueous emulsion.
Embodiment 17 25% diflufenican Brominal aqueous emulsions
Diflufenican 9%, Brominal 16%, phenethyl phenol polyethenoxy ether 7%, alkylbenzenesulfonate 3%, castor oil polyoxyethylene ether 6%, glycerine 3%, gum Arabic 2%, silicone oil 1.5%; Deionized water supplies 100%, makes 25% diflufenican Brominal aqueous emulsion.
Embodiment 18 15% diflufenican Brominal aqueous emulsions
Diflufenican 10%, Brominal 5%, alkyl biphenyl ether disulfonic acid magnesium salts 6%, butanols 4%, ethylene glycol 3%, silicone 1.5%, deionized water adds to 100%, makes 15% diflufenican Brominal aqueous emulsion.
Application implementation example three: diflufenican and Brominal control wheat paddock weeds field control effectiveness test
The control medicament: diflufenican and Brominal complex composition, produce by the research and development of Shaanxi agricultural chemicals Co., Ltd of U.S. nation;
Contrast medicament: 50% diflufenican wetting powder (commercial); 225 grams per liter Brominal missible oil (commercial);
If artificial weeding and clear water control treatment.
Method for using: convert behind 30 liters in the water evenly that cauline leaf sparges in each sub-district for every mu
Spraying time:, the weeds in field 2-4 leaf phase, carry out cauline leaf spraying 1 time in the wheat 2-4 leaf phase.
Investigation method and drug effect are calculated:
Investigation weeds object is: weeds such as chickweed, clearvers, wild oat, descurainia sophia (l.) webb ex prantl, Amaranthus retroflexus, lamb's-quarters, investigate back 7 days, 30 days to strain preventive effect of weeds and 30 days fresh weight preventive effect.
The visual test medicament does not have poisoning to wheat to be taken place.
The table 2 diflufenican Brominal built composition for preventing and controlling wheat paddock weeds test of pesticide effectiveness
Can know diflufenican and Brominal is composite that wheat paddock chickweed, clearvers, wild oat, descurainia sophia (l.) webb ex prantl, Amaranthus retroflexus, lamb's-quarters, barnyard grass grass, kitchen garden, green foxtail are had good control efficiency by table 2; And wheat there is certain raising the output; Preventive effect is better than single agent preventive effect; And contrast medicament, artificial weeding, with respect to significant difference between the rate of growth of clear water control treatment; And have quick-acting and lasting effect preferably; In this test scope of medication, to wheat safety.
Claims (6)
1. Herbicidal combinations that contains diflufenican and Brominal, it is characterized in that: Herbicidal combinations contains effective composition diflufenican 1%～60%, Brominal 1%～80%, auxiliary agent surplus.
2. the Herbicidal combinations that contains diflufenican and Brominal according to claim 1 is characterized in that: Herbicidal combinations contains diflufenican 2%～40%, Brominal 4%～60%, auxiliary agent surplus.
3. the Herbicidal combinations that contains diflufenican and Brominal according to claim 2 is characterized in that: Herbicidal combinations contains diflufenican 4%～30%, Brominal 6%～50%, auxiliary agent surplus.
4. according to each described Herbicidal combinations that contains diflufenican and Brominal in the claim 1 to 3, it is characterized in that: composition is processed wetting powder, water dispersible granules, suspending agent, suspension emulsion, aqueous emulsion, microemulsion.
5. the Herbicidal combinations that contains diflufenican and Brominal according to claim 4 is used to prevent and treat the purposes of wheat paddock weeds.
6. purposes according to claim 5 is characterized in that, described wheat paddock weeds comprise: clearvers, grandmother's sodium, kitchen garden, Amaranthus retroflexus, lamb's-quarters, barnyard grass grass, wild oat, green foxtail, chickweed, descurainia sophia (l.) webb ex prantl.
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| CN105580810A (en) * | 2016-03-15 | 2016-05-18 | 山东省农业科学院植物保护研究所 | Herbicide composition containing halauxifen-methyl and diflufenican |
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