CN103283778A - Weeding composition comprising glufosinate and saflufenacil - Google Patents
Weeding composition comprising glufosinate and saflufenacil Download PDFInfo
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- CN103283778A CN103283778A CN2013102276346A CN201310227634A CN103283778A CN 103283778 A CN103283778 A CN 103283778A CN 2013102276346 A CN2013102276346 A CN 2013102276346A CN 201310227634 A CN201310227634 A CN 201310227634A CN 103283778 A CN103283778 A CN 103283778A
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Abstract
The invention discloses a weeding composition. The weeding composition comprises a glufosinate weed killer and saflufenaci which are taken as effective ingredients and the balance of acceptable adjuvant in pesticide preparation, wherein the sum of the mass percentage of the glufosinate weed killer and the mass percentage of the saflufenaci in the composition is 10-85%, and the mass ratio of the glufosinate weed killer to the saflufenaci is (1:12)-(12:1). The weeding composition disclosed by the invention is more prominent in the control efficiency on weeds which cannot be well controlled by the single glufosinate weed killer, so that weeding spectrum range is expanded; as for lasting period, the weeding composition product disclosed by the invention can reach more than 30 days, even longer, and is more thorough and lasting when compared with a single glufosinate product and a single saflufenacil product; the weeding composition disclosed by the invention presents obvious synergetic effect within a certain proportion range; the control effect of the weeding composition is obviously improved when compared with a single agent; the use amount of the glufosinate is effectively reduced; the composition application times is reduced, however, weeding effect can be achieved; the composition application cost is reduced; environment pollution is reduced.
Description
Technical field:
The present invention relates to a kind of Herbicidal combinations, be specifically related to a kind of Herbicidal combinations that comprises careless ammonium phosphine and benzene flumetsulam.
Background technology:
Grass ammonium phosphine (glufosinate-ammonium), CAS number: 77182-82-2, molecular formula: C
5H
15N
2O
4P, molecular weight: the phosphonate derivative of the 198.1574th, L-glutamic acid, it is by to the irreversible inhibition of glutamine synthetase and destroy relevant process and cause plant death.Grass ammonium phosphine is the broad-spectrum touch-out type weed killer herbicide of being succeeded in developing (afterwards belonging to Beyer Co., Ltd) by Hirst company, is one of weed killer herbicide of output maximum in the world.The eighties in 19th century, listing was used, and had very strong activity of weeding, almost can effectively prevent and kill off for the various weeds of examination, but to the crop non-selectivity.Grass ammonium phosphine and salt thereof are that many grassy weeds are had the active non-selective inner sucting herbicide in back of well emerging.Long-term a large amount of the use, weeds develop immunity to drugs gradually to careless ammonium phosphine, use careless ammonium phosphine often to produce not satisfied control of weeds separately, need to increase spraying times or reach by dosage to prevent and treat purpose, increase labour and drug cost.And careless ammonium phosphine belongs to the broad-leaved that is difficult to prevent and treat and the validity of rhizomatous grass is poor.
Benzene flumetsulam (saflufenacil): CAS number: 372137-35-4; molecular formula: C17H17ClF4N4O5S; chemical name: N'-[2-chloro-4-fluoro-5-(1; 2; 3,6-tetrahydrochysene-3-methyl-2,6-dioxy-4-trifluoromethyl pyrimidine-1-yl) benzoyl]-N-isopropyl-N-sulfonyloxy methyl amine; being the uracil weeding agent by BASF AG's exploitation, is proporphyrinogen oxidase (PPO) inhibitor.Can be used as steriland herbicide usefulness, can effectively prevent and kill off multiple broad leaved weed, comprise glyphosate, ALS and triazines produce the weeds of resistance.Have the very fast life effect of going out and pedo relict degraded rapidly.The benzene flumetsulam has N-amino-sulfonyl formamide side chain, and it may be in the temperature that raises and hydrolysis under greater than 7 pH value.And the benzene flumetsulam is easily crystallization in liquid preparation, causes crystallization to be separated out when serious, has a strong impact on quality and drug effect.
By the screening of different formulation of pesticides, can effectively improve actual control efficiency, reduce dosage, reduce cost, delay the drug-fast generation of disease pest and weed, be the important means that agricultural synthesis is administered.The inventor furthers investigate the prescription screening of careless ammonium phosphine benzene flumetsulam and careless ammonium phosphine class weed killer herbicide, discovery benzene flumetsulam and careless ammonium phosphine class weed killer herbicide are mixed and in certain mixed ratio scope weeds are had tangible synergy summation action, have finished the present invention after further study.
Being mixed and using and still do not have report at present of benzene flumetsulam and careless ammonium phosphine class weed killer herbicide.
Summary of the invention:
It is stronger to the purpose of this invention is to provide a kind of activity of weeding, the Herbicidal combinations that weeding is rapider, the effect duration is longer, be applied to farmland, orchard, tea place, vegetable plot, uncultivated area etc., realize the control of weeds such as grassy weed and broad leaved weed in longer a period of time.
The present invention is achieved by the following technical programs:
A kind of Herbicidal combinations is active ingredient with careless ammonium phosphine class weed killer herbicide and benzene flumetsulam, and surplus is acceptable assistant on the pesticidal preparations; Described careless ammonium phosphine class weed killer herbicide and the mass fraction sum of benzene flumetsulam in composition are 10-85%, are preferably 15-65%; Described careless ammonium phosphine class weed killer herbicide is 1:12～12:1 with both mass ratioes of benzene flumetsulam, is preferably 4:1～12:1.
Described careless ammonium phosphine class weed killer herbicide is selected from one or more mixture of careless ammonium phosphine, careless ammonium phosphine ammonium salt, careless ammonium phosphine isopropyl amine salt, careless ammonium phosphine sylvite, careless ammonium phosphine sodium salt, careless ammonium phosphine dimethylamine salt etc.
Described Herbicidal combinations, the active component that comprises careless ammonium phosphine and benzene flumetsulam, add the required auxiliary agent of preparation different dosage form, be prepared into agricultural chemicals and use upward acceptable any one formulation, be preferably aqua, soluble granule, water dispersible granules, wetting powder, suspending agent, paste, effervescent tablet.
The present invention also provides Herbicidal combinations as herbicide applications, is applied to prevent and treat the weeds in orchard, vegetable plot, farmland.
Herbicidal combinations of the present invention is for the relatively poor weeds of careless ammonium phosphine list agent control efficiency, and control efficiency is more outstanding, enlarges the herbicidal spectrum scope.On the lasting period, product of the present invention can reach more than 30 days even be more of a specified duration, and is more thorough more lasting than single careless ammonium phosphine, benzene flumetsulam product.Herbicidal combinations provided by the invention, in certain ratio range, show tangible summation action, the control efficiency of composition is significantly improved than single agent, effectively reduced the consumption of careless ammonium phosphine, reduced the medication number of times, but can reach herbicidal effect equally, reduce the cost of medication, reduce the pollution to environment.
Embodiment:
Below be to further specify of the present invention, rather than limitation of the present invention.
Embodiment one: careless ammonium phosphine and benzene flumetsulam are mixed kitchen garden and eleusine indica synergy are measured.
1, reagent agent: the former medicine of 96.5% careless ammonium phosphine; The former medicine of 97.4% benzene flumetsulam.
2, for the examination material: kitchen garden, eleusine indica are weeds in the true lattice bio tech ltd of the Zhaoqing experimental field
3, test medicine preparation
The preparation of grass ammonium phosphine medicament: take by weighing the former medicine 0.7772g of 96.5% careless ammonium phosphine, be settled to 500mL with 1% acetone, the 0.1% Tween-80 aqueous solution, get careless ammonium phosphine mother liquor, concentration is 1500mg/L.In mensuration, all prepare careless ammonium phosphine list agent or mixture with this mother liquor.
The preparation of benzene flumetsulam medicament: take by weighing the former medicine 0.0667g of 97.4% benzene flumetsulam, behind the adding 5mL acetone solution, be settled to 500mL with the 0.1% Tween-80 aqueous solution, get benzene flumetsulam mother liquor, concentration is 100mg/L.In mensuration, all with this mother liquor preparation benzene flumetsulam list agent or mixture.
Contrast solution: 1% acetone, the 0.1% Tween-80 aqueous solution.
4, test method: use the hand-held compression sprayer, carry out the cauline leaf spraying from low dosage to the high dose order by experimental scheme and handle.Every processing repeats for 3 times.And establish the contrast that is treated to that does not contain medicament.Be injured symptom and growth inhibition situation of range estimation target behind the 14d, and claim acrial part fresh weight or strain fresh weight, estimate medicament to the toxicity action of target weeds with target fresh weight preventive effect.
5, data survey and statistical analysis.
5.1 investigation method:
Range estimation target be injured symptom and growth inhibition situation are handled behind the 14d in test, and claim the acrial part fresh weight, and by formula (1) calculates fresh weight preventive effect (%) that each is handled, and result of calculation keeps 2 significant digits.
In the formula:
E-fresh weight preventive effect;
C-contrast weeds acrial part fresh weight;
T-processing weeds acrial part fresh weight.
5.2 synergy evaluation method:
Adopt the Gowing method to estimate 2 kinds and kill the synergy type of grass spectrum complementary type weed killer herbicide and the reasonability of proportioning.By formula calculate (2), and the result keeps 2 significant digits.Formula is as follows:
In the formula:
The weeds preventive effect of X-when careless ammonium phosphine consumption is P;
The weeds preventive effect of Y-when benzene flumetsulam consumption is Q;
E
0-the theoretical preventive effect of theoretical preventive effect+when benzene flumetsulam consumption is Q when careless ammonium phosphine consumption is P;
E is the actual preventive effect of Mixed Pharmacy.
Evaluation criterion: E-E
0＞10% is summation action; E-E
0＜-10% is antagonism; E-E
0Value is addition between theoretical value ± 10%.
Grass ammonium phosphine and benzene flumetsulam the results are shown in Table 1 and table 2 be mixed preventive effect to kitchen garden and eleusine indica of variable concentrations, according to table 1 test data and E-E
0Value, careless ammonium phosphine and benzene flumetsulam are with 375+35,375+50,500+35, to the E-E of kitchen garden
0Value is respectively: 11.05,12.32,10.75, show as synergistic effect, all the other are summation action, as can be seen from Table 2 375+35, when 375+50 is mixed, have certain synergistic effect, E-E
0Value〉10, other ratio is mixed and is summation action.Both are mixed and can reduce the usage amount of careless ammonium phosphine when being mixed, and improve preventive effect.
The composite toxicity test that kitchen garden is suppressed of the careless ammonium phosphine of table 1 and the combination of benzene flumetsulam is table as a result
Annotate: A: careless ammonium phosphine; , B: benzene flumetsulam
The composite toxicity test that eleusine indica is suppressed of the careless ammonium phosphine of table 2 and the combination of benzene flumetsulam is table as a result
Annotate: A: careless ammonium phosphine; , B: benzene flumetsulam
Embodiment two: the preparation method of composition of careless ammonium phosphine and benzene flumetsulam.
The described emulsifier of following examples is selected from any one or more mixtures formed with arbitrary proportion in calcium dodecyl benzene sulfonate, aliphatic acid polyethenoxy ether, alkylphenol polyoxyethylene sulfosuccinate, styryl phenol APEO, polyoxyethylene nonylphenol ether, castor oil polyoxyethylene ether, aliphatic acid polyethenoxy base ester, the polyoxyethylene aliphatic alcohol ether.
Described wetting, dispersant is selected from lignosulfonates, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, alkyl benzene sulfonate calcium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, aliphatic amine polyoxyethylene ether, polyoxyethylene carboxylate, the fatty acid glyceride APEO, lauryl sodium sulfate, calcium dodecyl benzene sulfonate, draw back one or both of powder, alkylnaphthalene sulfonate, spaonin powder, silkworm excrement.
Described solvent, cosolvent are any one or more mixed solvents formed with arbitrary proportion in biodiesel, soybean oil, turpentine oil, wintergreen, methyl oleate, water, toluene, dimethylbenzene, diesel oil, methyl alcohol, ethanol, n-butanol, isopropyl alcohol, turpentine oil, solvent naphtha, dimethyl formamide, dimethyl sulfoxide (DMSO), fatty acid methyl ester, the sec-butyl acetate equal solvent.
Described antifreeze is selected from any in ethylene glycol, glycerine, propane diols, glycerine, polyethylene glycol or the isopropyl alcohol.
One or more mixing that described carrier, filler are selected from white carbon, precipitated calcium carbonate, potter's clay, attapulgite, kaolin, diatomite, bentonite, sepiolite, talcum powder, the water are used.
Described disintegrant is a kind of in sodium alginate, sodium carboxymethyl starch, sulfuric acid amine, urea or the carbonating calcium.
Described antifreeze is that one or more are used with in phosphoric acid, hydrochloric acid, sulfuric acid, potassium dihydrogen phosphate, glycerine, calcium stearate, organosilicon, the rare earth.
Described binding agent be starch, dextrin, gum Arabic, sodium sulphate, polyvinyl alcohol, polyethylene glycol, rosin or sodium silicate one or more use with.
Described warning colouration is selected from iron oxide, a kind of in titanium oxide, Prussian blue, A Lizhalin, azo dyes, metal phthalocyanine or the kiton colors.
Described thickener is selected from one or more in xanthans, CMC, hydroxyethylcellulose, methylcellulose, Magnesiumaluminumsilicate, the white carbon.
Described preservative is selected from Sodium Benzoate, polyformaldehyde, sorbitol, formalin, citric acid or a kind of in the yl benzoic acid methyl esters.
The preparation of preparation method embodiment 1:20% benzene flumetsulam grass ammonium phosphine aqua
The described herbicidal composition that contains careless ammonium phosphine and benzene flumetsulam, formed by the component of following weight percentage: benzene flumetsulam 4%, careless ammonium phosphine 16%, emulsifier 5%, cosolvent 10%, warning colouration 5%, stabilizing agent 4%,, antifreezing agent 5%, water supply surplus.After former medicine, solvent and auxiliary agent mix, leave standstill removal of impurities, namely can be made into benzene flumetsulam grass ammonium phosphine aqua of the present invention.
The preparation of preparation method embodiment 2 36% benzene flumetsulams grass ammonium phosphine aqua
The described herbicidal composition that contains careless ammonium phosphine and benzene flumetsulam, formed by the component of following weight percentage: benzene flumetsulam 4%, careless ammonium phosphine 32%, emulsifier 5%, cosolvent 10%, warning colouration 5%, stabilizing agent 4%,, antifreezing agent 5%, water supply surplus.After former medicinal water and the cosolvent dissolving, by certain auxiliary agent that adds, after mixing, packing is left standstill stable, namely gets described benzene flumetsulam grass ammonium phosphine aqua.
The preparation of preparation method embodiment 3 30% benzene flumetsulams grass ammonium phosphine soluble powder
The described herbicidal composition that contains careless ammonium phosphine and benzene flumetsulam is made up of the component of following weight percentage: benzene flumetsulam 3%, careless ammonium phosphine 27%, wetting dispersing agent 8%, cosolvent 9%, warning colouration 3%, stabilizing agent 4%, binding agent, 5% filler surplus.Former medicine and auxiliary agent feed intake by certain feeding sequence, carry out ultramicro grinding after, mix, can obtain benzene flumetsulam of the present invention grass ammonium phosphine soluble powder.
The preparation of preparation method embodiment 4 40% benzene flumetsulams grass ammonium phosphine wetting powder
The described herbicidal composition that contains careless ammonium phosphine and benzene flumetsulam is made up of the component of following weight percentage: benzene flumetsulam 5%, careless ammonium phosphine 35%, wetting dispersing agent 10%, cosolvent 8%, warning colouration 3%, stabilizing agent 5%, filler surplus.Former medicine and auxiliary agent feed intake by certain feeding sequence, carry out ultramicro grinding after, mix, can obtain benzene flumetsulam of the present invention grass ammonium phosphine wettable pulvis.
The preparation of preparation method embodiment 5 65% benzene flumetsulams grass ammonium phosphine wetting powder
The described herbicidal composition that contains careless ammonium phosphine and benzene flumetsulam, component by following weight percentage is formed: benzene flumetsulam 5%, careless ammonium phosphine 50%, careless ammonium phosphine ammonium salt 10%, wetting dispersing agent 8%, cosolvent 10%, warning colouration 3%, stabilizing agent 2%, the filler surplus.Former medicine and auxiliary agent feed intake by certain feeding sequence, carry out ultramicro grinding after, mix, can obtain benzene flumetsulam of the present invention grass ammonium phosphine wettable pulvis.
The preparation of preparation method embodiment 6 48% benzene flumetsulams grass ammonium phosphine soluble liquid
The described herbicidal composition that contains careless ammonium phosphine and benzene flumetsulam, formed by the component of following weight percentage: benzene flumetsulam 8%, careless ammonium phosphine 40%, emulsifier 5%, cosolvent 10%, warning colouration 5%, stabilizing agent 4%,, antifreezing agent 5%, water supply surplus.After former medicinal water and the cosolvent dissolving, by certain auxiliary agent that adds, after mixing, packing is left standstill stable, namely gets described benzene flumetsulam grass ammonium phosphine aqua.
The preparation of preparation method embodiment 7 30% benzene flumetsulams grass ammonium phosphine paste
The described herbicidal composition that contains careless ammonium phosphine and benzene flumetsulam is made up of the component of following weight percentage: benzene flumetsulam 5%, careless ammonium phosphine 25%, wetting dispersing agent 5%, cosolvent 9%, warning colouration 3%, stabilizing agent 10%, preservative 3%, filler surplus.Former medicine and auxiliary agent feed intake by certain feeding sequence, and after mixing, packing is left standstill stable, namely get described benzene flumetsulam grass ammonium phosphine paste.
The preparation of preparation method embodiment 8 15% benzene flumetsulams grass ammonium phosphine water dispersible granules
The described herbicidal composition that contains careless ammonium phosphine and benzene flumetsulam, component by following weight percentage is formed: benzene flumetsulam 12%, careless ammonium phosphine 3%, wetting dispersing agent 10%, cosolvent 9%, warning colouration 4%, stabilizing agent 2%, disintegrant 3%, binding agent 4% filler surplus.Former medicine and auxiliary agent feed intake by certain feeding sequence, after mixing, after ultramicro grinding, carry out granulation, after the oven dry, namely get described benzene flumetsulam grass ammonium phosphine water dispersible granules.
The preparation of preparation method embodiment 9 45% benzene flumetsulams grass ammonium phosphine water dispersible granules
The described herbicidal composition that contains careless ammonium phosphine and benzene flumetsulam, component by following weight percentage is formed: benzene flumetsulam 30%, careless ammonium phosphine 15%, wetting dispersing agent 8%, cosolvent 9%, warning colouration 4%, stabilizing agent 4%, disintegrant 5%, binding agent 5%, filler surplus.Former medicine and auxiliary agent feed intake by certain feeding sequence, after mixing, after ultramicro grinding, carry out granulation, after the oven dry, namely get described benzene flumetsulam grass ammonium phosphine water dispersible granules.
The preparation of preparation method embodiment 10 60% benzene flumetsulams grass ammonium phosphine water dispersible granules
The described herbicidal composition that contains careless ammonium phosphine and benzene flumetsulam, component by following weight percentage is formed: benzene flumetsulam 50%, careless ammonium phosphine 10%, wetting dispersing agent 6%, cosolvent 6%, warning colouration 4%, stabilizing agent 5%, disintegrant 5%, binding agent 5%, filler surplus.Former medicine and auxiliary agent feed intake by certain feeding sequence, after mixing, after ultramicro grinding, carry out granulation, after the oven dry, namely get described benzene flumetsulam grass ammonium phosphine water dispersible granules.
The preparation of preparation method embodiment 11 26% benzene flumetsulams grass ammonium phosphine aqueous emulsion
The described herbicidal composition that contains careless ammonium phosphine and benzene flumetsulam is made up of the component of following weight percentage: benzene flumetsulam 24%, careless ammonium phosphine 2%, dispersant 5%, cosolvent 4%, warning colouration 4%, stabilizing agent 3%, water surplus.Former medicine and auxiliary agent, add water and supply surplus after emulsify at a high speed is sheared, reached certain fineness by the mixing that feeds intake of certain feeding sequence, namely get described benzene flumetsulam grass ammonium phosphine aqueous emulsion.
The preparation of preparation method embodiment 12 25% benzene flumetsulams grass ammonium phosphine effervescent tablet
The described herbicidal composition that contains careless ammonium phosphine and benzene flumetsulam, component by following weight percentage is formed: benzene flumetsulam 8%, careless ammonium phosphine ammonium salt 17%, dispersant 10%, cosolvent 10%, warning colouration 4%, stabilizing agent 3%, disintegrant 10%, binding agent 5%, filler surplus.Former medicine and auxiliary agent are crushed to several microns by the mixing that feeds intake of certain feeding sequence through airslide disintegrating mill, count binding agent slurries mixing simultaneously after, suitably after the drying, carry out extrusion moduling, after the oven dry, namely get described benzene flumetsulam grass ammonium phosphine effervescent tablet.
The preparation of preparation method embodiment 13 50% benzene flumetsulams grass ammonium phosphine oil suspending agent
The described herbicidal composition that contains careless ammonium phosphine and benzene flumetsulam, component by following weight percentage is formed: benzene flumetsulam 25%, careless ammonium phosphine 25%, dispersant 6%, cosolvent 10%, warning colouration 4%, stabilizing agent 6%, thickener 0.2%, preservative 0.5%, antifreezing agent 8%, filler surplus.Former medicine and auxiliary agent are crushed to several microns by the mixing that feeds intake of certain feeding sequence through airslide disintegrating mill, count binding agent slurries mixing simultaneously after, suitably after the drying, carry out extrusion moduling, after the oven dry, namely get described benzene flumetsulam grass ammonium phosphine oil suspending agent.
Embodiment triphen flumetsulam and careless ammonium phosphine complex preparation are used for the field efficacy of oranges and tangerines garden weeds
The 20% benzene flumetsulam grass ammonium phosphine aqua that preparation method embodiment 1 of the present invention is obtained, the 36% benzene flumetsulam grass ammonium phosphine aqua that preparation method embodiment 2 obtains, the 30% benzene flumetsulam grass ammonium phosphine soluble powder that preparation method embodiment 3 obtains, the 40% benzene flumetsulam grass ammonium phosphine wetting powder that preparation method embodiment 4 obtains, the 65% benzene flumetsulam grass ammonium phosphine wetting powder that preparation method embodiment 5 obtains, the 48% benzene flumetsulam grass ammonium phosphine soluble liquid that preparation method embodiment 6 obtains are at 600g ai./hm
2Dosage under to the control efficiency of oranges and tangerines garden weeds relatively.
1. test method:
Subjects is weeds in the oranges and tangerines garden, and grassy weed has lady's-grass, moleplant seed, eleusine indica etc.; Broad leaved weed has recessed amaranth, garden euphorbia herb, Ageratum conyzoides, bidens pilosa etc.
Test medicine: the benzene flumetsulam that embodiment 1-6 obtains and careless ammonium phosphine complex preparation, formulation rate is 600g ai./hm
2, the contrast medicament: careless ammonium phosphine mass fraction is that 20% aqua formulation rate is 1050g ai./hm
2Handle with artificial weeding, the each processing repeated 4 times.
Application method: use at the weed growth animated period and weeds to be carried out cauline leaf handle, adopt the dispenser of directed spraying method in the ranks.
Each handles the cover degrees of residential quarter weeds and the fresh weight investigation all adopts 5 accidental samplings to carry out, and the cover degrees of residential quarter weeds and main weeds fresh weight etc. are respectively handled in investigation records respectively.
2. drug effect computational methods
3. evaluating drug effect:
The benzene flumetsulam that embodiment of the invention 1-6 obtains and careless ammonium phosphine complex preparation see Table 3 to the control efficiency of oranges and tangerines garden weeds.From result of the test can, after the dispenser 10 days, the preventive effect that the present invention's grass ammonium phosphine and benzene flumetsulam composition are prevented and kill off oranges and tangerines garden weeds all reached more than 93.2%; After the dispenser 20 days, preventive effect was still more than 90%, and the term of validity is sustainable more than 30 days.The composite back preventive effect to weeds of benzene flumetsulam and careless ammonium phosphine obviously is better than careless ammonium phosphine and uses separately, reduced the using dosage of careless ammonium phosphine, reduced the adverse effect of agricultural chemicals to ecotope, prolonged the lasting period, reduced the medication number of times and effectively administer weeds pesticide resistance problem.
Table 3 benzene flumetsulam and careless ammonium phosphine mixture are to the drug effect of oranges and tangerines garden weeds
Embodiment four, benzene flumetsulam and careless ammonium phosphine complex preparation are to the weeds drug effect in vegetable plot and vacant lot, roadside
In the vegetable plot and vacant lot, roadside tested benzene flumetsulam and careless ammonium phosphine complex preparation to the control effect of Ma Tang, eleusine indica, recessed amaranth, Siberian cocklebur and other weeds, described other weeds refer to not do on a small quantity independent statistics, comprise garden euphorbia herb, dayflower, bare headed barnyard grass etc.Test method is shown in embodiment three.
Contrast medicament: 20% careless ammonium phosphine aqua
4 complex preparations in the embodiment of the invention and the medication of contrast medicament to lady's-grass, eleusine indica, Siberian cocklebur, recessed common weed medication such as amaranth after 20 days fresh weight preventive effect as shown in table 2.From table 4 result as can be seen, 30% benzene flumetsulam grass ammonium phosphine paste, 45% benzene flumetsulam grass ammonium phosphine water dispersible granules, 60% benzene flumetsulam grass ammonium phosphine water dispersible granules, 26% benzene flumetsulam grass ammonium phosphine aqueous emulsion, 25% benzene flumetsulam grass ammonium phosphine effervescent tablet, after the medication of 50% benzene flumetsulam grass ammonium suspension emulsion 20 days to lady's-grass preventive effect be respectively: 88.42%, 94.19%, 96.88%, 91.49%, 86.85%, 97.30%, all be higher than contrast 20% careless ammonium phosphine aqua, to recessed amaranth, eleusine indica, Siberian cocklebur and other class weeds such as garden euphorbia herb, dayflower, the preventive effect of shaven head barnyard grass etc. also all is higher than contrast, and dosage is less than the contrast medicament.More than experiment shows, can improve careless ammonium phosphine after being mixed to the control efficiency of eleusine indica and broad leaved weed Siberian cocklebur, recessed amaranth.
Table 4 benzene flumetsulam and careless ammonium phosphine mixture are to the fresh weight preventive effect of lady's-grass, eleusine indica, Siberian cocklebur, recessed weeds such as amaranth
From top embodiment as can be seen, herbicidal composition of the present invention for the relatively poor weeds of careless ammonium phosphine list agent control efficiency as: eleusine indica and broad leaved weeds, control efficiency are more outstanding, enlarge the herbicidal spectrum scope.On the lasting period, product of the present invention can reach more than 30 days even be more of a specified duration, and is more thorough more lasting than single careless ammonium phosphine, benzene flumetsulam product.Herbicidal combinations provided by the invention, in certain ratio range, show tangible summation action, the control efficiency of composition is significantly improved than single agent, effectively reduced the consumption of careless ammonium phosphine, prolong the lasting period of careless ammonium phosphine, reduced the medication number of times, but can reach herbicidal effect equally, reduce the cost of medication, reduced the pollution to environment.
Claims (8)
1. a Herbicidal combinations is characterized in that, described Herbicidal combinations is active ingredient with careless ammonium phosphine class weed killer herbicide and benzene flumetsulam, and surplus is acceptable assistant on the pesticidal preparations; Described careless ammonium phosphine class weed killer herbicide and the mass fraction sum of benzene flumetsulam in composition are 10-85%; Described careless ammonium phosphine class weed killer herbicide is 1:12～12:1 with both mass ratioes of benzene flumetsulam.
2. Herbicidal combinations according to claim 1 is characterized in that, described careless ammonium phosphine class weed killer herbicide and benzene flumetsulam the mass fraction sum be 15-65%.
3. Herbicidal combinations according to claim 1 and 2 is characterized in that, described careless ammonium phosphine class weed killer herbicide is 4:1～12:1 with the mass ratio of benzene flumetsulam.
4. Herbicidal combinations according to claim 1, it is characterized in that, described careless ammonium phosphine class weed killer herbicide is selected from one or more mixture of careless ammonium phosphine, careless ammonium phosphine ammonium salt, careless ammonium phosphine isopropyl amine salt, careless ammonium phosphine sylvite, careless ammonium phosphine sodium salt, careless ammonium phosphine dimethylamine salt.
5. Herbicidal combinations according to claim 1 is characterized in that, described Herbicidal combinations is prepared into agricultural chemicals and uses upward acceptable any one formulation.
6. Herbicidal combinations according to claim 5 is characterized in that, described Herbicidal combinations is prepared into any one formulation in aqua, soluble liquid, soluble powder, wetting powder, paste, water dispersible granules, aqueous emulsion or the oil suspending agent.
7. the described Herbicidal combinations of claim 1 is as herbicide applications.
8. Herbicidal combinations according to claim 7 is characterized in that as herbicide applications, is used for the weeds in control orchard, vegetable plot, farmland.
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| CN105613543A (en) * | 2015-12-28 | 2016-06-01 | 南京华洲药业有限公司 | Mixed herbicide with saflufenacil and isoproturon |
| CN106035344A (en) * | 2016-07-01 | 2016-10-26 | 安徽丰乐农化有限责任公司 | Wheat post-emergence compound herbicide |
| CN106689191A (en) * | 2015-07-14 | 2017-05-24 | 江苏扬农化工股份有限公司 | Compound weeding composition containing glufosinate-ammonium and application thereof |
| CN106962361A (en) * | 2017-03-22 | 2017-07-21 | 山东润博生物科技有限公司 | A kind of composition and its application containing hexazinone and benzene flumetsulam |
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| WO2021151733A1 (en) | 2020-01-31 | 2021-08-05 | Basf Se | Herbicide combinations comprising glufosinate and saflufenacil |
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| CN103392732A (en) * | 2013-06-30 | 2013-11-20 | 广东中迅农科股份有限公司 | Herbicidal composition containing glufosinate-ammonium and saflufenacil |
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| CN107996587A (en) * | 2017-12-22 | 2018-05-08 | 北京科发伟业农药技术中心 | Herbicidal combinations containing pinoxaden and smart napropamide |
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| CN110839649A (en) * | 2018-08-20 | 2020-02-28 | 四川利尔作物科学有限公司 | Herbicidal composition and use thereof |
| WO2021151733A1 (en) | 2020-01-31 | 2021-08-05 | Basf Se | Herbicide combinations comprising glufosinate and saflufenacil |
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