CN103120173A - Paddy field weeding composition - Google Patents
Paddy field weeding composition Download PDFInfo
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- CN103120173A CN103120173A CN2013100431756A CN201310043175A CN103120173A CN 103120173 A CN103120173 A CN 103120173A CN 2013100431756 A CN2013100431756 A CN 2013100431756A CN 201310043175 A CN201310043175 A CN 201310043175A CN 103120173 A CN103120173 A CN 103120173A
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- butyl
- cyhalofop
- methyl
- bensulfuron
- penoxsuam
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Abstract
The invention discloses a paddy field weeding composition. The paddy field weeding composition is prepared from the following effective components in weight percentage: 1-10% of bensulfuron methyl, 1-10% of penoxsulam and 1-15% of cyhalofop-butyl, as well as the balance being pesticide adjuvants. The paddy field weeding composition disclosed by the invention has the advantages that after the bensulfuron methyl, the penoxsulam and the cyhalofop-butyl are compounded, a weeding effect is improved and a herbicide controlling spectrum is amplified; the toxin is low and the residue is low; the dosage, the medicine use times and the use cost are obviously reduced; and the effect of the composition is obviously higher than that of each single dosage and the composition is a current novel composition medicament which has good effect on preventing and treating annual weeds of a paddy field.
Description
Technical field
The present invention relates to a kind of Herbicidal composition for rice field, is take bensulfuron-methyl, penoxsuam and cyhalofop-butyl as active ingredient, is used for control paddy field annual weed.
Background technology
The chemical method weeding is one of upper Main Means of controlling weeds of agricultural.In recent years, because some weed killer herbicide kind large tracts of land are used separately, caused a lot of weeds to develop immunity to drugs.Simultaneously, the grass when weeds occur is complicated mutually, and grassy weed, broad leaved weed, nutgrass flatsedge multiclass weeds mix and give birth to, and the single variety weed killer herbicide uses can not solve farmland weed, all can show in a certain respect defective and limitation.The variety classes weed killer herbicide is mixed, have herbicidal spectrum wide, promote actual effect, delay herbicide resistance, the time and labour saving advantage.
Bensulfuron-methyl, English name: bensulfuron-methyl, chemical name: α-{ [(4,6-dimethoxypyridin-α-yl) amino carbonyl amino] sulfonyl methyl } methyl benzoate, structural formula:
Bensulfuron-methyl is the selectivity inner-adsorption conduction-type herbicide, can be in water diffusion rapidly, for weeds root and blade absorb weeds each one of transferring to, the biosynthesis of hindered aminoacid, lysine, isoleucine stops division and the growth of cell.The susceptible weeds GF is obstructed, and tender tissue turns to be yellow too early and suppresses the growth of leaf section, hinders root growth and necrosis.Entering the interior metabolism rapidly of paddy rice body is harmless inertia chemicals, to rice safety.Bensulfuron-methyl is not only effective to the broad leaved weeds such as Monochoria vaginalis, special-shaped nutgrass flatsedge, duckweed, alternanthera philoxeroides, nutgrass flatsedge, and barnyard grass is also had activity.
Cyhalofop-butyl, English name: cyhalofop-butyl, chemical name: (R)-2-[4 (4-cyano group-2-fluorophenoxy) phenoxy group]-butyl propionate, structural formula:
Cyhalofop-butyl is in fragrant phenoxy phenoxy propionic acid weed killer herbicide, paddy rice to be had the kind of tight security.Cyhalofop-butyl is also interior suction conductivity weed killer herbicide, blade and leaf sheath by plant corpus absorb, the phloem conduction, accumulate the meristem zone in plant corpus, suppress acetyl-CoA carboxylase, fatty acid is synthesized stop, the growth division of cell can not normally be carried out, film system etc. contains the fat structural deterioration, causes at last plant dead.Cyhalofop-butyl also can be prevented and treated the grassy weeds such as barnyard grass, Paspalum distichum, green foxtail, eleusine indica, amur foxtail not only to moleplant seed.
Penoxsuam, English name: penoxsulam, chemical name: 2-(2,2-difluoro ethoxy)-N-(5,8-dimethoxy (1,2,4) triazole-(1,5-C) pyrimidine-2-base)-6-trifluoromethyl-benzene sulfanilamide (SN), structural formula:
Penoxsuam is inner-adsorption conduction-type herbicide, through cauline leaf, young shoot and Root Absorption, can be adsorbed rapidly by soil, conduct to meristematic tissue by xylem and phloem, suppress plant strain growth, make the growing point chlorosis, after processing, the 7-14d terminal bud reddens, necrosis, and 2-4 week plant is dead; This agent is strong inhibitor of acetolactate synthetase, and medicament presents slower, needs the certain hour weeds just dead gradually.The rice field broad-spectrum herbicide, can effectively prevent and kill off barnyard grass and annual sedge weed, and numerous broad leaved weeds are had, also can prevent and kill off anti-bensulfuron-methyl weeds in the rice field, and many broad-leaveds and sedge weed and barnyard grass etc. had residual activity, for composing the widest kind with herbicide in weed killer herbicide in present rice field.
The variety classes weed killer herbicide is mixed, have herbicidal spectrum wide, promote actual effect, delay herbicide resistance, the time and labour saving advantage.Screening by formulation of pesticide, can effectively improve actual control efficiency, reduce dosage, reduce costs, delay disease, worm, the drug-fast generation of crop smothering, is the important means that agricultural synthesis is administered.The inventor conducts in-depth research the formula screening of bensulfuron-methyl, penoxsuam and cyhalofop-butyl, find that bensulfuron-methyl, penoxsuam and cyhalofop-butyl are mixed, in certain mixed ratio scope, the paddy field annual weed there are synergy or summation action, after further study, completed the present invention.
Summary of the invention
The object of the invention is to solve in prior art to farmland weed develop immunity to drugs problem and actual control efficiency relatively poor, provide a kind of efficient, low toxicity, quick-acting is good and the lasting period is long, is conducive to the Herbicidal combinations of the farmland weed comprehensive regulation.
Another object of the present invention is that this Herbicidal combinations is used for preventing and kill off paddy field annual weed etc.
Technical scheme: for achieving the above object, the invention provides a kind of Herbicidal composition for rice field, active ingredient is bensulfuron-methyl, penoxsuam, cyhalofop-butyl.The percentage by weight of bensulfuron-methyl in composition is 1%～10%, and the percentage by weight of penoxsuam in composition is 1%～10%, the percentage by weight of cyhalofop-butyl in composition is 1%～15%, and all the other are insecticides adjuvant.
Described Herbicidal combinations can add suitable insecticides adjuvant, according to well known to a person skilled in the art method, is processed into the application forms of the suitable agricultural uses such as oil-suspending agent, aqueous suspension agent, wetting powder or water dispersible granules.
The auxiliary agent that uses in Herbicidal combinations of the present invention comprises solvent, emulsifier, wetting agent, stabilizing agent, dispersant, thickener, pH adjusting agent, defoamer, antifreezing agent, deionized water, filler etc., be all various auxiliary agents commonly used in Pesticide formulation, concrete composition and consumption require to determine by simple test according to formula.
The production technology of the various application forms of Herbicidal combinations provided by the invention all belongs to existing known technology, does not repeat them here.
Herbicidal combinations provided by the invention, employing is watered spraying usually, pesticide-clay mixture spreads fertilizer over the fields method and uses, and also can adopt as required upper other operation techniques used of agricultural.Herbicidal combinations provided by the invention should be in the 2 leaf phases of paddy rice to the shooting stage when using, and paddy field annual weed 5 leaves used before the phase.
Herbicidal combinations provided by the invention has following beneficial effect.
1, Herbicidal combinations provided by the invention, show obvious synergistic effect in certain ratio range, the control efficiency of composition is significantly improved than single dose, reduced the using dosage of agricultural chemicals, reduced the medication number of times, reduce drug cost, reduced the adverse effect of agricultural chemicals to ecotope.
2, Herbicidal combinations provided by the invention, the combination of two kinds of effective ingredients has enlarged herbicidal spectrum, and a drug can solve various weeds problems, has made up defective and limitation when single dose is used.
3, Herbicidal combinations provided by the invention, the effective ingredient mechanism of action is different, can overcome the shortcoming that long-term single use easily produces resistance, extends the service life of medicament, to the comprehensive regulation important in inhibiting of Weed Resistance.
4, Herbicidal combinations provided by the invention, the drug effect performance is rapid, and the lasting period is long, and use cost is low, and is easy to use, time saving and energy saving, and it applies huge economic benefit and social benefit.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage more short and sweet, the present invention describes with following specific embodiment, but the present invention only limits to absolutely not these examples.The following stated is only the present invention embodiment preferably, only is used for describing the present invention, can not be interpreted as the restriction to scope of the present invention.Should be pointed out that all any modifications of making within the spirit and principles in the present invention, be equal to replacement and improvement etc., within all should being included in protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
In these embodiments, unless otherwise indicated, all percentages all are weight percentage.
Preparation method embodiment one:
Bensulfuron-methyl 2%,
Penoxsuam 1.5%,
Cyhalofop-butyl 6.5%,
Pull open powder 5%,
NNO 12%，
Talcum powder 4%,
Kaolin to 100%.
Above-mentioned formula is entered in blender after coarse crushing in proportion mix, more namely make 10% bensulfuron-methyl penoxsuam cyhalofop-butyl wetting powder after air-flow crushing.
Preparation method embodiment two:
Bensulfuron-methyl 3%,
Penoxsuam 2%,
Cyhalofop-butyl 10%,
1601# 15%，
LS 5%，
SOPA-270 4%，
Bentonite 3%,
Xanthans 0.1%,
Organosilicon 0.4%,
Glycerine 5%,
Deionized water to 100%.
Above-mentioned formula is pulverized in proportion in advance, then added in sand mill and grind, allotment making 15% bensulfuron-methyl penoxsuam cyhalofop-butyl suspending agent after high shear mixing.
The preparation method implements three:
Bensulfuron-methyl 15%,
Penoxsuam 10%,
Cyhalofop-butyl 15%,
Lauryl sodium sulfate 6%,
Polycarboxylate 4%,
Sodium chloride 2%,
Polyethylene glycol 3%,
Kaolin to 100%.
Dry pulverization process, granulation, drying, screening make 40% bensulfuron-methyl penoxsuam cyhalofop-butyl water-dispersible granules in proportion with above-mentioned formula.
Preparation method embodiment four:
Bensulfuron-methyl 5%,
Penoxsuam 5%,
Cyhalofop-butyl 10%,
Calcium dodecyl benzene sulfonate 5%,
Castor oil polyoxyethylene ether 11%,
Sodium lignin sulfonate 4%,
Methyl oleate to 100%.
Above-mentioned material is pulverized in proportion in advance, then added in sand mill and grind, but allotment makes 20% bensulfuron-methyl penoxsuam flucetosulfuron dispersed oil suspending agent after high shear mixing.
Biologicall test embodiment one:Formulation screening test.
Be mixed to the synergy of weeds for further understanding bensulfuron-methyl, penoxsuam and cyhalofop-butyl, the inventor is mixed to bensulfuron-methyl, penoxsuam and cyhalofop-butyl and has carried out formulation screening test.
1.1 reagent agent: 96% bensulfuron-methyl; The 98% former medicine of penoxsuam; 98% cyhalofop-butyl active compound.
1.2 for trying material: Monochoria vaginalis (
MonochoiavaginalisBurm.f.) (field is collected seed and is preserved).Moleplant seed (
Leptochloa chinensis(L.) Nees) (field is collected seed and is preserved).Barnyard grass (
Echinochloa crusgalli(L.) Beauv.) (field is collected seed and is preserved).
1.3 test apparatus: controlled greenhouse by solar heat; The accurate laboratory of POTTER spray tower; Electronic balance (sensibility reciprocal 0.1mg); Micropipette rifle etc.
1.4 test method: 1.4.1 tests Treatment Design:
(1) bensulfuron-methyl 0.6g (a.i.)/667m
2
(2) bensulfuron-methyl 0.9g (a.i.)/667m
2
(3) bensulfuron-methyl 1.2g (a.i.)/667m
2
(4) bensulfuron-methyl 1.5g (a.i.)/667m
2
(5) bensulfuron-methyl 1.8g (a.i.)/667m
2
(6) penoxsuam 0.6g (a.i.)/667m
2
(7) penoxsuam 0.9g (a.i.)/667m
2
(8) penoxsuam 1.2g (a.i.)/667m
2
(9) penoxsuam 1.5g (a.i.)/667m
2
(10) penoxsuam 1.8g (a.i.)/667m
2
(11) cyhalofop-butyl 5.0g (a.i.)/667m
2
(12) cyhalofop-butyl 4.0g (a.i.)/667m
2
(13) cyhalofop-butyl 3.0g (a.i.)/667m
2
(14) cyhalofop-butyl 2.0g (a.i.)/667m
2
(15) cyhalofop-butyl 1.0g (a.i.)/667m
2
(16) bensulfuron-methyl 0.6g+penoxsuam 1.8g+ cyhalofop-butyl 5.0g (a.i.)/667m
2
(17) bensulfuron-methyl 0.9g+penoxsuam 1.5g+ cyhalofop-butyl 4.0g (a.i.)/667m
2
(18) bensulfuron-methyl 1.2g+penoxsuam 1.2g+ cyhalofop-butyl 3.0g (a.i.)/667m
2
(19) bensulfuron-methyl 1.5g+penoxsuam 0.9g+ cyhalofop-butyl 2.0g (a.i.)/667m
2
(20) bensulfuron-methyl 1.8g+penoxsuam 0.6g+cyhalofop-butyl 1.0g (a.i.)/667m
2
(21) blank.
1.4.2 activity test:
According to 1.4.1 test Treatment Design dosage configuration liquid, first calculate drug dosage according to experimental scheme, then take penoxsuam with electronic balance and cyhalofop-butyl is first used respectively acetone solution, and then stand-by with 0.1% Tween 80 aqueous solution prepared and diluted.
After the weed seed presoaking and germinating, point is sowed at the sectional area 0.25m that earth is housed
2The iron basin in, after preparing liquid by the test treatment dosage of design, every basin is broadcast 100,3 leaf phases were carried out chemicals treatment in cultivation in the greenhouse in.According to 1.4.1 test Treatment Design dosage configuration liquid, spray liquid with POTTER precision laboratory spray tower, spouting liquid is every processing 50ml, keeps ground moistening after medicine.Every processing repeats 4 times, takes in 20 days after medicine and respectively processes weeds acrial part fresh weight, calculates and respectively processes acrial part and remaining weeds for the percentage of contrast, is mixed to the synergy of weeds with Gowing method evaluation bensulfuron-methyl, penoxsuam and cyhalofop-butyl.The actual preventive effect of Mixed Pharmacy is calculated as follows:
In formula: the weeds preventive effect of A bensulfuron-methyl; The weeds preventive effect of B penoxsuam; The weeds preventive effect of C cyhalofop-butyl; E
0The weeds preventive effect of the weeds preventive effect+cyhalofop-butyl of the weeds preventive effect+penoxsuam of bensulfuron-methyl; The actual preventive effect of E mixe herbicide.E-E
0＞10% is synergistic effect; E-E
0＜-10% is antagonism; E-E
0Value is addition between theoretical value ± 10%.
1.5 results and analysis:
Result of the test is as shown in table 1, table 2, table 3, and bensulfuron-methyl, penoxsuam and cyhalofop-butyl are mixed composition to Monochoria vaginalis, moleplant seed, barnyard grass E-E
0Value all＞10% illustrate that bensulfuron-methyl, penoxsuam and cyhalofop-butyl are mixed to be combined as synergistic effect, and bensulfuron-methyl, penoxsuam and cyhalofop-butyl are mixed and make up is feasible.
Table 1, bensulfuron-methyl, penoxsuam and cyhalofop-butyl combination are measured (after medicine 20 days) to the synergy of Monochoria vaginalis.
Table 2, bensulfuron-methyl, penoxsuam and cyhalofop-butyl combination are measured (after medicine 20 days) to the synergy of moleplant seed.
Table 3, bensulfuron-methyl, penoxsuam and cyhalofop-butyl combination are measured (after medicine 20 days) to the synergy of barnyard grass.
Biologicall test embodiment two: bensulfuron-methyl, penoxsuam and cyhalofop-butyl composition are prevented and kill off the field control effectiveness test of rice direct seeding field annual weed.
Reagent agent and dispenser dosage:
(1) 10% bensulfuron-methyl penoxsuam cyhalofop-butyl wetting powder (2% bensulfuron-methyl, 1.5% penoxsuam: 6.5% cyhalofop-butyl), 6g (a.i.)/667m
2(1#);
(2) 15% bensulfuron-methyl penoxsuam cyhalofop-butyl suspending agents (3% bensulfuron-methyl, 2% penoxsuam, 10% cyhalofop-butyl), 6g (a.i.)/667m
2(2#);
(3) 40% bensulfuron-methyl penoxsuam cyhalofop-butyl water-dispersible granules (15% bensulfuron-methyl, 10% penoxsuam, 15% cyhalofop-butyl), 6g (a.i.)/667m
2(3#);
(4) but 20% bensulfuron-methyl penoxsuam flucetosulfuron dispersed oil suspending agent (5% bensulfuron-methyl, 5% penoxsuam, 10% cyhalofop-butyl), 6g (a.i.)/667m
2(4#).
Contrast medicament and dispenser dosage:
(1) 10% bensulfuron-methyl wetting powder, 2g (a.i.)/667m
2(5#);
(2) 25 grams per liter penoxsuam oil-suspending agents, 2g (a.i.)/667m
2(6#);
(3) 15% cyhalofop-butyl missible oils, 6g (a.i.)/667m
2(7#).
Spraying time: on April 17th, 2012,3 leaf phases of paddy rice, paddy field weed 2-3 leaf phase dispenser.
Test site: Lao Keng village, Ren Shan town, Huizhou Huidong County.
Result of the test: see Table 3, as can be seen from the test results: after dispenser 30 days, bensulfuron-methyl of the present invention, penoxsuam and cyhalofop-butyl composition are prevented and kill off rice direct seeding field annual weed preventive effect more than 96%, significantly better than the single dose of bensulfuron-methyl, penoxsuam, each contrast of cyhalofop-butyl.In experimentation, each medicament is showed no the generation poisoning, to rice safety.
Table 4, prevent and kill off rice direct seeding field annual weed field control effectiveness test result (after medicine 30 days).
Claims (3)
1. Herbicidal composition for rice field, it is characterized in that: active ingredient is bensulfuron-methyl, penoxsuam, cyhalofop-butyl, wherein, the percentage by weight of bensulfuron-methyl in composition is 1%～10%, the percentage by weight of penoxsuam in composition is 1%～10%, the percentage by weight of cyhalofop-butyl in composition is 1%～15%, and all the other are insecticides adjuvant.
2. Herbicidal composition for rice field according to claim 1 is characterized in that: its formulation is a kind of in oil-suspending agent, aqueous suspension agent, wetting powder or water dispersible granules.
3. Herbicidal combinations according to claim 1, is characterized in that: be applicable to prevent and kill off the paddy field annual weed.
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|---|---|---|---|
| CN201310043175.6A CN103120173B (en) | 2013-02-04 | 2013-02-04 | Herbicidal composition for rice field |
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| CN103120173B CN103120173B (en) | 2015-08-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104855408A (en) * | 2015-05-14 | 2015-08-26 | 北京明德立达农业科技有限公司 | Herbicide composition and use thereof |
| CN105123730A (en) * | 2015-09-16 | 2015-12-09 | 安庆市宜秀区永兴农机农艺综合发展专业合作社 | Phytocidal composition |
| CN105746558A (en) * | 2016-05-13 | 2016-07-13 | 创新美兰（合肥）股份有限公司 | Bensulfuron methyl, cyhalofop-butyl and penoxsulam compounded dispersible oil suspending agent and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007079965A2 (en) * | 2006-01-13 | 2007-07-19 | Bayer Cropscience Ag | A herbicide composition for paddy field |
| WO2008075743A1 (en) * | 2006-12-21 | 2008-06-26 | Kumiai Chemical Industry Co., Ltd. | Herbicide composition |
-
2013
- 2013-02-04 CN CN201310043175.6A patent/CN103120173B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007079965A2 (en) * | 2006-01-13 | 2007-07-19 | Bayer Cropscience Ag | A herbicide composition for paddy field |
| WO2008075743A1 (en) * | 2006-12-21 | 2008-06-26 | Kumiai Chemical Industry Co., Ltd. | Herbicide composition |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104855408A (en) * | 2015-05-14 | 2015-08-26 | 北京明德立达农业科技有限公司 | Herbicide composition and use thereof |
| CN105123730A (en) * | 2015-09-16 | 2015-12-09 | 安庆市宜秀区永兴农机农艺综合发展专业合作社 | Phytocidal composition |
| CN105746558A (en) * | 2016-05-13 | 2016-07-13 | 创新美兰（合肥）股份有限公司 | Bensulfuron methyl, cyhalofop-butyl and penoxsulam compounded dispersible oil suspending agent and preparation method thereof |
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Effective date of registration: 20161027 Address after: 414000 Room 101, office building, Yunxi Industrial Park, Hunan, Yueyang Patentee after: Hu'nan Agricultural University Heartale Agrochemicals Co., Ltd. Address before: 516000 Guangdong province Huizhou Zhongkai hi tech Development Zone No. 24 District Patentee before: Guangdong Zhongxun Agricultural Technology Co., Ltd. |