CN101715768B - Clodinafop-propargyl fenoxaprop compound herbicide - Google Patents
Clodinafop-propargyl fenoxaprop compound herbicide Download PDFInfo
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- CN101715768B CN101715768B CN 200910185852 CN200910185852A CN101715768B CN 101715768 B CN101715768 B CN 101715768B CN 200910185852 CN200910185852 CN 200910185852 CN 200910185852 A CN200910185852 A CN 200910185852A CN 101715768 B CN101715768 B CN 101715768B
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Abstract
The invention relates to clodinafop-propargyl fenoxaprop compound herbicide, belonging to pesticide technical field and mainly solving the technical problem that a clodinafop-propargyl fenoxaprop compound herbicide which can prevent and kill off resistant gramineae weeds in wheat field, is safe to wheat and has no influence on after crop is provided. The compound herbicide is prepared by the following raw materials and assistant by percent by weight: 1-90% of clodinafop-propargyl, 90-1% of fenoxaprop, 5-7% of dispersant, 1-3% of wetting agent, 3-5% of disintegrant, 2-3% of bonding agent, the balance carrier. The compound herbicide of the invention has obvious effect, is clearly superior to two single herbicides and is also clearly superior to other compound herbicides; the compound herbicide has wide herbicidal spectrum, can effectively prevent and kill off annual resistant gramineae weeds, has no influence on next crop, is environmentally friendly and is ideal for wheat postemergence control.
Description
Technical field
The present invention relates to a kind of complex weedicide, particularly a kind of alkynes oxalic acid fenoxaprop compound herbicide for cauline leaf processing behind the wheat seedling.
Technical background
Wheat is one of staple food crop of northern China, and the long-term cultivated area of China is only second to the paddy rice cultivated area at more than 3,000 ten thousand hectares.Wheatland crop smothering area accounts for more than 30% of total cultivated area, and wherein serious injured area is more than 8%, and the general underproduction can be had no harvest when serious more than 15%.Therefore, the usage ratio of domestic wheat paddock weed killer herbicide almost reaches 100%, and its dosage is very big.At present, domestic wheat paddock grassy weed mainly contains amur foxtail, Japanese amur foxtail, Wang grass, wild oat, hard grass, bromegrass, Annual Ryegrass, Triticum tauschii etc.But because using single weed killer herbicide to prevent and kill off grassy weed for many years, weeds have produced pesticide resistance, cause its large usage quantity, make wheat produce recessive poisoning and the underproduction easily, and also not too safe to succession crop.In addition, because the use of chemical herbicide for many years, variation has also taken place in the group of China wheat district weeds, originally northern wheat district grassy weed is based on wild oat, wheat district, south grassy weed is based on amur foxtail, Wang grass, and resistant weeds such as the hard grass of north and south Mai Qu, bromegrass, Annual Ryegrass, Triticum tauschii all generally take place now.China's wheat seedling rear defence has: fenoxaprop 6.9% aqueous emulsion, fenoxaprop 10% missible oil, grand 3% oil suspending agent of methyl two sulphurs, alkynes oxalic acid 15% wetting powder, grand 70% water dispersible granules of fluorine azoles sulphur etc. except the main medicament of weed killer herbicide of grassy weed at present.According to experiment and field practical application, this several herbicides all can only be prevented and kill off a part of grassy weed wherein, and undesirable to other grassy weed effect.So just press for the weed killer herbicide that can prevent and kill off wheat paddock resistance grassy weed, neither influence the safety of succession crop, again to the weed killer herbicide of environment than the close friend, and this type of weed killer herbicide of China is seldom seen at present.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of and can prevent and kill off wheat paddock resistance grassy weed, and succession crop is not had influence, environment amenable alkynes oxalic acid fenoxaprop compound herbicide again.
Its technical scheme is: a kind of alkynes oxalic acid fenoxaprop compound herbicide, it is characterized in that: it is made by raw material and the auxiliary agent of following quality percentage composition: alkynes oxalic acid 0.1～90, fenoxaprop 90～0.1, dispersant 5～7, wetting agent 1～3, disintegrant 3～5, adhesive 2～3, carrier complements to 100.
Above-mentioned raw material and auxiliary agent namely obtain wetting powder or water dispersible granules through fully mixing, air-flow pulverizing, mixing, granulation, drying and screening.
Its technique effect is: by in Henan, the field control effectiveness test in 2 years in ground such as Anhui, Shandong, Jiangsu shows, in winter wheat 3 leaves～tillering stage, weeds 1～6 leaf does not wait the phase, adopt weed killer herbicide WG20,25,30,50 grams/mu of the present invention 25% alkynes oxalic acid fenoxaprop, converting water sprays for 40 kilograms/mu, 15, the range estimation wheat safety of 45 days and maturing stage and weeds preventive effect, surveyed all preventive effects, result such as following table in 15,45 days:
15 days preventive effects to weeds behind the table 125% alkynes oxalic acid fenoxaprop WG medicine
| Usage amount (gram/mu) | Wild oat | Preventive effect % | Hard grass | Preventive effect % | Bromegrass | Preventive effect % | Integrated control effect |
| Alkynes oxalic acid fenoxaprop 20 | 18.6 | 70.2 | 10.1 | 71.5 | 6.4 | 70.8 | 70.8 |
| Alkynes oxalic acid fenoxaprop 25 | 16.6 | 73.5 | 9.2 | 73.8 | 5.6 | 74.3 | 73.9 |
| Alkynes oxalic acid fenoxaprop 30 | 14.2 | 77.3 | 8.3 | 76.6 | 4.8 | 78.2 | 77.4 |
| Alkynes oxalic acid fenoxaprop 50 | 5.3 | 91.6 | 4.1 | 88.5 | 2.0 | 90.7 | 90.3 |
| 15% alkynes oxalic acid WP25 | 12.1 | 80.7 | 7.2 | 79.5 | 7.7 | 64.7 | 75.0 |
| 6.9% fenoxaprop EW50 | 30.9 | 50.5 | 28.1 | 20.5 | 15.6 | 28.5 | 33.2 |
| CK | 62.5 | / | 35.3 | ? | 21.8 | / | / |
45 days preventive effects to weeds behind the table 225% alkynes oxalic acid fenoxaprop WG medicine
| Usage amount (gram/mu) | Wild oat | Preventive effect % | Hard grass | Preventive effect % | Bromegrass | Preventive effect % | Integrated control effect |
| Alkynes oxalic acid fenoxaprop 20 | 7.0 | 89.5 | 3.5 | 90.2 | 2.8 | 87.5 | 89.1 |
| Alkynes oxalic acid fenoxaprop 25 | 5.6 | 91.6 | 3.0 | 91.5 | 2.1 | 90.6 | 91.2 |
| Alkynes oxalic acid fenoxaprop 30 | 4.2 | 93.7 | 2.0 | 94.4 | 1.7 | 92.3 | 93.5 |
| Alkynes oxalic acid fenoxaprop 50 | 2.8 | 95.8 | 1.5 | 95.8 | 1.2 | 94.7 | 95.4 |
| 15% alkynes oxalic acid WP25 | 5.6 | 91.6 | 4.5 | 87.3 | 3.8 | 83.2 | 87.4 |
| 6.9% fenoxaprop EW50 | 6.1 | 90.8 | 5.1 | 85.7 | 11.0 | 51.1 | 75.9 |
| CK | 66.3 | ? | 35.5 | ? | 22.5 | / | / |
By range estimation, wheat is not seen symptom of chemical damage from the dispenser to the maturing stage, to wheat safety.The preventive effect of weeds reached more than 70% in 15 days, reached more than 89% in 45 days, along with the increase of dosage, preventive effect obviously strengthens, can reach good herbicidal effect at winter wheat field 25g/ mu, obviously be better than two kinds of single agent, also obviously be better than the herbicidal effect of other mixture; Simultaneously, its broad weed-killing spectrum, a dispenser can be controlled the weeds in the crop whole growing, and second stubble crop is not had influence, and friendly to environment, is the desirable complex weedicide of present control efficiency.
Concrete embodiment
Embodiment 1.Get alkynes oxalic acid 13kg ， fenoxaprop 12kg, D-4257kg, EFW2kg, ammonium sulfate 5kg, polyethylene glycol 2kg and kaolin 28kg through fully mixing, air-flow pulverizing, mixing, granulation, drying and screening, obtain water dispersible granules.
Embodiment 2.Get alkynes oxalic acid 10kg ， fenoxaprop 15kg, dispersant lauryl sodium sulfate content 5%, White Carbon black 5%, fine particle calcium carbonate supplies 100%, pulverizes, mixes through fully mixing, air-flow, gets wetting powder.
Claims (1)
1. alkynes oxalic acid fenoxaprop compound herbicide, it is characterized in that: get alkynes oxalic acid 13kg fenoxaprop 12kg, D-4257kg, EFW2kg, ammonium sulfate 5kg, polyethylene glycol 2kg and kaolin 28kg, through fully mixing, air-flow pulverizing, mixing, granulation, drying and screening, obtain water dispersible granules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910185852 CN101715768B (en) | 2009-12-08 | 2009-12-08 | Clodinafop-propargyl fenoxaprop compound herbicide |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910185852 CN101715768B (en) | 2009-12-08 | 2009-12-08 | Clodinafop-propargyl fenoxaprop compound herbicide |
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| Publication Number | Publication Date |
|---|---|
| CN101715768A CN101715768A (en) | 2010-06-02 |
| CN101715768B true CN101715768B (en) | 2013-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910185852 Active CN101715768B (en) | 2009-12-08 | 2009-12-08 | Clodinafop-propargyl fenoxaprop compound herbicide |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106342824A (en) * | 2016-08-26 | 2017-01-25 | 安徽久易农业股份有限公司 | Fenoxaprop-p-ethyl complex herbicide |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1179885A (en) * | 1996-07-17 | 1998-04-29 | 拜尔公司 | Herbicidal compositions based on N-isopropyl -N -(4 -fluorophenyl) (5 -trifluoromethyl -1, 3, 4 -thiadiazol -2 -yloxy) acetamide |
| CN101438709A (en) * | 2008-10-31 | 2009-05-27 | 淄博新农基农药化工有限公司 | Herbicidal composition containing clodinafop-propargyl and fluroxypyr-meptyl |
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2009
- 2009-12-08 CN CN 200910185852 patent/CN101715768B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1179885A (en) * | 1996-07-17 | 1998-04-29 | 拜尔公司 | Herbicidal compositions based on N-isopropyl -N -(4 -fluorophenyl) (5 -trifluoromethyl -1, 3, 4 -thiadiazol -2 -yloxy) acetamide |
| CN101438709A (en) * | 2008-10-31 | 2009-05-27 | 淄博新农基农药化工有限公司 | Herbicidal composition containing clodinafop-propargyl and fluroxypyr-meptyl |
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| CN101715768A (en) | 2010-06-02 |
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Address after: 231602 Hefei circular economy demonstration garden, Feidong County, Anhui Province Patentee after: Anhui Fengle Agrochemical Co., Ltd. Address before: 230031 No. 4, Pioneer Road, Shushan Economic Development Zone, Anhui, Hefei Patentee before: Anhui Fengle Agrochemical Co., Ltd. |