CN101485315A - Cornfield herbicidal composition containing benazolin - Google Patents
Cornfield herbicidal composition containing benazolin Download PDFInfo
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- CN101485315A CN101485315A CNA2009101161974A CN200910116197A CN101485315A CN 101485315 A CN101485315 A CN 101485315A CN A2009101161974 A CNA2009101161974 A CN A2009101161974A CN 200910116197 A CN200910116197 A CN 200910116197A CN 101485315 A CN101485315 A CN 101485315A
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- benazolin
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- isoproturon
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Abstract
The invention relates to a herbicide composition for controlling annual weeds in a wheat field, which consists of tricornox and isoproturon or chlortoluron. The binary composition can be added with a surfactant, a solvent, a stuffing and other auxiliary agents to be prepared into suspending agents, wettable powder, and water dispersible granules. The prior chemical herbicide has the problems of single herbicide controlling spectrum, easy generation of herbicide resistance of weeds, and drug injuries to the current crops and the succession crops, but the herbicide composition overcomes the defects and has the advantages of remarkable synergism, capability of preventing and eliminating the annual gramineae and broad leaved weeds, and safety for wheat and the succession crops.
Description
Technical field
The present invention relates to prevent and kill off wheatland annual gramineae and broad leaved weed Herbicidal combinations, particularly benazolin and isoproturon or chlortoluron composition are prevented and kill off a wheat weeds, and the preparation of the various formulations of said composition and application technology.
Background technology
According to the whole nation weeds reconnaissance information eighties in last century, China's wheat weeds kind has kind more than 200, the crop smothering area accounts for more than 30% of wheat planting area, loss accounts for 15% of wheat gross yield, reach 10,000,000,000 kilograms, wherein hazard areas such as amur foxtail, ox chickweed, clearvers, descurainia sophia (l.) webb ex prantl, common vetch, wild oat are all more than 3,000 ten thousand mu.But along with long-term, the large scale application of weed killer herbicide, the farmland weed chemical control exists weeds resistance, population succession and drug injury problem to be on the rise, and has a strong impact on the high yield of wheat and the safety of good harvest and succession crop.At present, there are some drawbacks in medicament commonly used in the wheatland.As the sulfonylurea herbicide tribenuron-methyl, the bensulfuron-methyl consumption is too high and cross late use meeting succession crop peanut, soybean are caused poisoning.Phenoxy carboxylic acid herbicides 2,4-d butyl ester, the mcpa sodium consumption is too high and use and improperly easily cause chemical injury of crops to produce drift can to produce poisoning near dicotyledonous crops.The single weed killer herbicide of long-term use is prevented and kill off sensitization weeds quantity decline, and insensitive or malignant weed quantity rises, and causes that weed community changes.Make less important weeds become main weeds, as the Yellow River and Huai He River ocean current territory Mai Qu in Henan, shepherd's purse, descurainia sophia (l.) webb ex prantl wildness; In rice wheat crop rotation district amur foxtail, hard grass wildness.Mai Qu in Wan Bei, northern Suzhou, wild oat, wartwort large tracts of land occur, and weeds such as clearvers, hard grass occurred in Shandong, and the appearance of these weeds populations has had a strong impact on the results of wheat crop output.The present invention makes at the problem of above-mentioned appearance.
Summary of the invention
The objective of the invention is just to provide a kind of synergistic effect significantly, broad weed-killing spectrum, to the novel cornfield herbicidal composition of wheat and succession crop safety.
The applicant discovers by experiment: benazolin is the dried inhibitor of a kind of hormone biosynthesis, and the blade that can be plant absorbs, and transporting is to other positions of plant.And can in soil, change into free acid and separate into the non-activity material very soon, second stubble crop there is not influence.Outstanding and safe but invalid to weeds preventive effects such as chickweed, shepherd's purse, grasswort, common vetch, clearvers to this product of standing grain weeds.Therefore, with a kind of binary wheat field herbicide composition that comprises that isoproturon, chlortoluron are formed in the carbamide herbicides, can enlarge and kill the grass spectrum, raising is to current secondary malignant weed---hard grass, amur foxtail, Hairy Bittercress, chickweed herbicidal effect, improve safety greatly, take place thereby effectively control crop smothering when stubble crop and second stubble crop.
Wheat field herbicide composition of the present invention takes following scheme to realize:
By by benazolin and isoproturon or chlortoluron as active ingredient and the binary composition that cooperates filler to form.
Benazolin (benazolin-ethyl) is a kind of selectivity inner sucting conduction type post-emergence herbicide, can change into free acid and separate into the non-activity material very soon in soil, and second stubble crop is not had influence.Can prevent and kill off annual broadleaf weed in the wheatland such as chickweed, Stellaria alsine Grim., shepherd's purse, grasswort, common vetch, clearvers, field shepherd's purse, Matricaria, Amaranthus, Siberian cocklebur, Veronica etc., to the wheat crop high safety.The benazolin chemical name: 4-chloro-2-oxo-3 (2H) benzothiazole ethyl ester, structural formula is:
Isoproturon (isoproturon) belongs to carbamide herbicides, is selectivity inner sucting conduction type weed killer herbicide, and weeds are absorbed by root and blade, suppress photosynthesis, and 2-3 is dead after week.Decompose soon in the soil, succession crop is not had influence.Can prevent and kill off wheatland annual gramineae leaf weeds and broad leaved weed, favorable effect be arranged as amur foxtail, lady's-grass, little lamb's-quarters, annual bluegrass, wild oat, descurainia sophia (l.) webb ex prantl, the shepherd's purse of cracking rice, shepherd's purse, chickweed, amaranth, hard grass etc.Isoproturon chemical name: 3-(4-isopropyl phenyl)-1, the 1-dimethyl urea, chemical structural formula is:
Chlortoluron (chlortoluron) belongs to carbamide herbicides, is selectivity inner sucting conduction type weed killer herbicide, by root and the leaf absorption of plant, suppress the electronics transmitting portions in the photosynthesis, destroy the photosynthesis of weeds, make weeds hungry and dead, whole strain is withered through about 10 days.Can prevent and kill off multiple broad leaved weed of wheatland and grassy weed, as weeds such as chickweed, Siberian cocklebur, lamb's-quarters, amur foxtail, lady's-grass, annual bluegrass, wild oat, green foxtail.Chlortoluron chemical name: N-(3-chloro-4-aminomethyl phenyl)-N, the N-dimethyl urea, chemical structural formula:
Separately amount of application and both portfolio ratios and synergy degree when the consumption of active component benazolin and isoproturon or chlortoluron depends on independent use in the present composition, the percentage by weight of active component benazolin and isoproturon or chlortoluron is 1:1-50, and best proportioning is 1:1-12.Two active component optimal proportions are 1:4-10.
The Herbicidal combinations of control of weed in wheat field of the present invention can add other components, is made into suspending agent, wetting powder, water dispersible granules.
It is different and different that described other components are looked formulation, mainly is solvent, cosolvent, filler or water.Add antifreeze, thickener, stabilizing agent, disintegrant, defoamer, preservative, binding agent in case of necessity.
Described surfactant is an alkylphenol polyoxyethylene; fatty alcohol-polyoxyethylene ether; the phenethyl phenol polyethenoxy ether; phenethyl phenol polyethenoxy polyethenoxy ether; the castor oil ethylene oxide adduct; the alkylphenol polyoxyethylene formaldehyde condensation products; the alkylphenol polyoxyethylene phosphate; phenethyl phenol polyethenoxy ether phosphate; the benzylphenol APEO; polyoxyethylene carboxylate; calcium dodecyl benzene sulfonate; neopelex; lignosulfonates; NNO; NO; MF; ZS-1; lauryl sodium sulfate; draw back powder; N-methyl fatty acyl group sodium taurocholate; alkylphenol polyoxyethylene formaldehyde condensation products sulphate; the withered powder of tea; saponin; lignosulfite; aliphatic alcohol sulfate; penetrant t; bleeding agent OT; JFC; fatty acid amide-N-N-methyltaurine sodium salt; sodium sulfate of polyethenoxy ether of fatty alcohol; draw back powder.
Described solvent, cosolvent are toluene, dimethylbenzene, chlorobenzene, solvent naphtha, α-methyl naphthalene, turpentine oil, carrene, chloroform, methyl alcohol, ethanol, glycerine, ethylene glycol, butanols, isoamyl alcohol, propane diols, cyclohexanone, isophorone, acetophenone, ethyl acetate, propyl acetate, butyl acetate, DMF, DMSO, cellosolve, can use separately, also can compound use more than two kinds.
Described thickener is Magnesiumaluminumsilicate, CMC, xanthans, gum Arabic, polyvinyl alcohol, bentonite, carboxyethyl cellulose, PAA, silicic acid.
Described antifreeze is ethylene glycol, propane diols, glycerine, urea, monoethylin diglycol, diglycol, polyethylene glycol, isopropyl alcohol.
Described stabilizing agent is BHT, triphenyl phosphite, epoxychloropropane, tributyl phosphate, triethanolamine, diethanol amine.
Described disintegrant is sodium alginate, sodium carboxymethyl starch, ammonium sulfate, bentonite, urea, calcium chloride.
Described defoamer is bubble enemy, silicone, C8-10 fatty alcohol, C1020 saturated fatty acid, acid amides.
Described binding agent is starch, dextrin, gum Arabic, soybean protein, gelatine, sodium sulphate, gypsum, polyvinyl alcohol, polyethylene glycol, rosin, paraffin wax, cmc, sodium silicate.
More than various auxiliary agents or carrier all can on market, buy
Herbicidal combinations of the present invention can be made various formulations according to the purposes needs: missible oil, suspending agent, wetting powder, water dispersible granules.
The simple preparation method and the equipment of various formulations are as follows:
(1) suspending agent: press formula rate, with the pesticide activity component of capacity, surfactant, after defoamer, thickener or filler and part water mix, through high speed shear, the wet method sand milling, semi-finished product, add water after the analysis and mix to filter and get product.
Capital equipment is: batching still, colloid mill or even matter mixer, sand mill.
(2) wetting powder, water dispersible granules:
Pesticide activity component, auxiliary agent, filler are mixed the mixed again wetting powder that gets behind comminution by gas stream in proportion.
Pesticide activity component, auxiliary agent and filler are mixed in proportion; through comminution by gas stream; add 15～20% water then, make the water dispersible granules product through kneading, granulation, drying, screening, maybe the powder that will pulverize water spray, granulation, dry in the fluidized granulating machine goes on foot successfully.Go out sieve behind the machine the water dispersible granules product.
Capital equipment: mixer, airslide disintegrating mill, kneader, Squeezinggranulator.Drying equipment (can be drying room, fluid-bed drying), or fluidized granulating machine, screening machine.
Wheat field herbicide composition of the present invention has addition or synergistic effect, sprays after being mainly used in the wheatland seedling, prevents and kill off multiple grass family of wheatland and broad leaved weed.Weeds such as amur foxtail, wild oat, hard grass, chickweed, descurainia sophia (l.) webb ex prantl, shepherd's purse, clearvers, Veronica, common vetch there is good control efficiency.Can prevent and kill off this product of standing grain and broad leaved weed simultaneously in wheat seedling phase or the dispenser of wheat period of seedling establishment, control wheat whole growing is endangered by weeds.Have activity of weeding height, broad weed-killing spectrum, the convenient characteristics of using, Herbicidal combinations of the present invention, in environment, be easy to degraded, overcome the shortcoming of long residual effect weed killer herbicide use,, belonged to environmentally friendly weed killer herbicide succession crop safety after the stubble wheat to the succession crop poor stability.
Embodiment
Specific embodiment with several different dosage forms further specifies the present invention below.But the present invention only limits to these examples absolutely not.Percentage is parts by weight in all prescriptions.
The form formula example:
Example 1 (wetting powder)
Benazolin 6%
Isoproturon 40%
Negel 4%
The withered powder 8% of tea
Bentonite 10%
Attapulgite complements to 100%
Example 2 (wetting powder)
Benazolin 5%
Chlortoluron 60%
Calcium lignosulfonate 5%
Lauryl sodium sulfate 0.5%
Negel 7%
Bentonite 10%
Attapulgite complements to 100%
Example 3 (water-dispersible granules)
Benazolin 6%
Isoproturon 60%
Negel 5%
Calcium lignosulfonate 5%
Lauryl sodium sulfate 1%
Sodium alginate 3%
Xanthic acid 0.1%
Bentonite complements to 100%
Example 4 (water-dispersible granules)
Benazolin 8%
Chlortoluron 60%
Calcium lignosulfonate 5%
Lauryl sodium sulfate 0.5%
N-methyl acetyl sodium taurocholate 4%
White carbon 2%
Bentonite complements to 100%
Example 5 (suspending agent)
Benazolin 10%
Chlortoluron 50%
Methyl naphthalene sulfonic acid sodium formaldehyde 3%
YUS-SC3 3％
Xanthans 0.2%
Magnesiumaluminumsilicate 1%
Ethylene glycol 5%
Sodium Benzoate 0.5%
Water complements to 100%
Example 6 (suspending agent)
Benazolin 8%
Isoproturon 48%
Methyl naphthalene sulfonic acid sodium formaldehyde 1%
Calcium lignosulfonate 3%
White carbon black 2%
Magnesiumaluminumsilicate 1%
Ethylene glycol 5%
Water complements to 100%
Indoor biological activity determination:
Below the indoor biological activity determination of wheat paddock weeds is verified the reasonability of prescription by benazolin and isoproturon and benazolin and chlortoluron two composition weed killer herbicides.
Activity of weeding after with the Gowing method composition being used with is tested, and the calculation of effect that is mixed company is: E
0=X+Y-XY/100, in the formula, X represents that consumption is the weeds preventive effect of weed killer herbicide A during for P; The weeds preventive effect of weed killer herbicide B when Y represents that consumption is Q; E
0The theoretical preventive effect of weed killer herbicide (A+B) when expression weed killer herbicide consumption is (P+Q).Press the Gowing method, work as E-E
010% o'clock, illustrate that mixture herbicide produces synergistic effect; Work as E-E
0＜-10%, illustrate that mixture herbicide produces antagonism; Work as E-E
0Value illustrates that between ± 10% o'clock mixture herbicide produces summation action, and E represents the actual measurement preventive effect % that each is handled in the formula.See Table 1,2.
Table 1: benazolin and isoproturon various dose are used proportioning synergy effect with
By indoor each the combined treatment result of table 1 as can be seen, in above-mentioned each compositional range, unite and all show as summation action.Each combined treatment of benazolin and isoproturon to the drug effect of chickweed apparently higher than preventive effect to hard grass.Take all factors into consideration, the best proportioning of benazolin and isoproturon is 90-150:700-900, i.e. 9-15:70-90.
Table 2: benazolin and chlortoluron various dose are used proportioning synergy effect with
By indoor each the combined treatment result of table 2 as can be seen, in above-mentioned each compositional range, except that benazolin and chlortoluron per hectare active ingredient are that the 120+750 combination is the synergy to Hairy Bittercress, other each combinatorial association effects are summation action.From Hairy Bittercress and amur foxtail integrated control effect being considered the best proportioning of benazolin and isoproturon is 90-150:600-900, i.e. 3-5:20-30.
Drug effect embodiment:
Winter wheat field is carried out field control effectiveness test work with Herbicidal combinations of the present invention in carclazyte town, Xiao County, Anhui Province, and the test basic condition is as follows:
The experimental field wheat was sowed on October 12nd, 2007, and after planting wheat was emerged in 7 days, 10 kilograms of mu seeding quantitys, line-spacing 15cm.3-5 leaf phases of wheat place during test, and the vigorous equilibrium of growing, weeds 2-3 leaf phases of place, the spray medicine, medical instruments are workers and peasants-16 type Manual pressure sprayer.Mu was investigated behind medicine 20 kilograms in water in 30 days and 50 days.The total preventive effect of fresh weight preventive effect statistics fresh weight is respectively handled in last investigation.7 processing, 4 repetitions of every processing, 30 square metres of every sub-district areas are established in test.The main weeds kind has: wild oat, descurainia sophia (l.) webb ex prantl, chickweed, clearvers, shepherd's purse, common vetch.Can find out from result of the test: 56% the application (benazolin+isoproturon) SC, 66% (benazolin+isoproturon) WDG, 68% (benazolin+chlortoluron) WDG, 65% (benazolin+chlortoluron) WP all reach more than 90% the average preventive effect of wild oat, descurainia sophia (l.) webb ex prantl, chickweed, clearvers, shepherd's purse and common vetch, illustrate that the Herbicidal combinations of the application's benazolin and isoproturon or chlortoluron has excellent preventive effect to annual main grass family of wheat paddock and broad leaved weed.(test data sees the following form 3)
Respectively handled the total preventive effect of fresh weight behind table 3, the present composition medicine in 50 days
(annotate: upward each weeds fresh weight preventive effect is and respectively repeats mean in the table).
Claims (6)
1, a kind of Herbicidal combinations of control of weed in wheat field is characterized in that two active ingredients are benazolin and isoproturon or chlortoluron, and both percentage by weights are 1:1-50.
2, the Herbicidal combinations of control of weed in wheat field according to claim 1, the percentage by weight that it is characterized in that benazolin and isoproturon or chlortoluron is 1:1-12.
3, the Herbicidal combinations of control of weed in wheat field according to claim 1, the percentage by weight that it is characterized in that benazolin and isoproturon or chlortoluron is 1:4-10.
4,, it is characterized in that the weight of active ingredient benazolin and isoproturon or chlortoluron accounts for the 15-90% of gross weight according to the Herbicidal combinations of claim 1 or 2 or 3 described control of weed in wheat field.
5,, it is characterized in that surplus is auxiliary agent or filler according to the herbicidal composition of claim 1 or 2 or 3 described control of weed in wheat field.
6,, it is characterized in that to be made into wetting powder, water dispersible granules, suspending agent according to the herbicidal composition of claim 1 or 2 or 3 described control of weed in wheat field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101161974A CN101485315A (en) | 2009-02-13 | 2009-02-13 | Cornfield herbicidal composition containing benazolin |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101161974A CN101485315A (en) | 2009-02-13 | 2009-02-13 | Cornfield herbicidal composition containing benazolin |
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| CN101485315A true CN101485315A (en) | 2009-07-22 |
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| CNA2009101161974A Pending CN101485315A (en) | 2009-02-13 | 2009-02-13 | Cornfield herbicidal composition containing benazolin |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102349526A (en) * | 2011-09-02 | 2012-02-15 | 江苏省苏科农化有限责任公司 | Mixed herbicide containing Clodinafop-propargyl and chlortoluron |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1374832A (en) * | 1999-09-30 | 2002-10-16 | 孟山都技术有限责任公司 | Package-mix agricultural chemical compositions having improved stability |
| CN1514686A (en) * | 2001-02-14 | 2004-07-21 | ������ɽ���� | Coformulation of oil-soluble herbicide and water-soluble heribcide as stable oil-in-water emulsion or microemulsion |
-
2009
- 2009-02-13 CN CNA2009101161974A patent/CN101485315A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1374832A (en) * | 1999-09-30 | 2002-10-16 | 孟山都技术有限责任公司 | Package-mix agricultural chemical compositions having improved stability |
| CN1514686A (en) * | 2001-02-14 | 2004-07-21 | ������ɽ���� | Coformulation of oil-soluble herbicide and water-soluble heribcide as stable oil-in-water emulsion or microemulsion |
Non-Patent Citations (1)
| Title |
|---|
| 陆剑飞 等: "50%草除灵悬浮剂防除油菜田阔叶杂草试验", 《浙江农业科学》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102349526A (en) * | 2011-09-02 | 2012-02-15 | 江苏省苏科农化有限责任公司 | Mixed herbicide containing Clodinafop-propargyl and chlortoluron |
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Application publication date: 20090722 |