CN1226926C - Herbicide for corn field - Google Patents
Herbicide for corn field Download PDFInfo
- Publication number
- CN1226926C CN1226926C CN 01127127 CN01127127A CN1226926C CN 1226926 C CN1226926 C CN 1226926C CN 01127127 CN01127127 CN 01127127 CN 01127127 A CN01127127 A CN 01127127A CN 1226926 C CN1226926 C CN 1226926C
- Authority
- CN
- China
- Prior art keywords
- weed killer
- corn
- present
- nicosulfuron
- killer herbicide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The present invention relates to a preemergence and postemergence weed killer used after sowing corn seeds. The present invention relates to a composite chemical weed killer, and the present invention is prepared from thifensulfuron and nicosulfuron used as effective components, which are congeneric compositions and have two kinds of different weeding mechanisms, and an appropriate quantity of carriers, surface active agents and synergistic agents; thus, a wettable powder is prepared by pulverization by gas streams and even mixture. The present invention has the advantages of effective prevention and kill of various gramineae and broadleaf weeds in corn fields, safety to corn, appropriate residual period and no influence on later crops; the prevention effect on main weeds reaches more than 96%.
Description
Technical field: the present invention relates to a kind of compound chemical weed killer herbicide, especially a kind of herbicide for corn field that is used for.
Background technology: corn is one of staple food crop of northern China, also is important forage crop, is called as the king of feed.Its long-term cultivated area reaches 3.2 hundred million mu, is only second to paddy rice and wheat, and nearly youngster is expected to surpass the cultivated area of wheat year, but it is subjected to the harm of weeds very serious, and injured area reaches 90.1%, and the general underproduction can be subjected to extremely when serious more than 20%.Therefore, domestic corn uses the area of weed killer herbicide to reach 100%, and its dosage is very big.The weed control of corn field at present mainly relies on and adds atrazine based on amide-type and do the seedling pre-treatment, owing to use identical product for many years, the back stubble is produced poisoning, and is also relatively poor to the safety of corn itself, usually causes the situation of the weeding underproduction.
The medicament that cauline leaf is handled usefulness behind the present domestic corn field seedling mainly contains: atrazine, execute field benefit, Yu Nongle, make that it is grand, thiameturonmethyl, companion's ground farming etc., its use is single agent, or anti-undergraduate course weeds, or anti-broad leaved weed.Because use for many years, weeds are developed immunity to drugs, cause consumption to increase, make corn produce recessive poisoning and the underproduction, and dangerous to succession crop.Simultaneously, use along with chemical herbicide, variation has been given birth in its ruderal species mass-sending, former as the north based on grassy weed, now developed into the coexistence of grass family and broad leaved weed, so just press for and can prevent and kill off the corn field grassy weed, can prevent and kill off broad leaved weed again, can broadcast soil treatment before the seedling of back, again can seedling after cauline leaf handle, and do not influence the weed killer herbicide new varieties of back stubble, yet this at home weed killer herbicide still belongs to blank.
Summary of the invention: technical problem to be solved by this invention is: provide a kind of and can prevent and kill off the corn field grassy weed, can prevent and kill off broad leaved weed again, can broadcast soil treatment before the seedling of back, again can seedling after cauline leaf handle, and the corn field that does not influence succession crop is broadcast the back herbicide.
Technical scheme of the present invention is: similar compound thifensulfuronmethyl and nicosulfuron with two kinds of different weeding mechanism are active ingredient, and are made by the active ingredient and the auxiliary agent of following quality percentage composition: thifensulfuronmethyl 0.1-25, nicosulfuron 2-70, surfactant 2-20, synergist 3-10, carrier complement to 100.
Above-mentioned active ingredient and auxiliary agent through comminution by gas stream, mix, be made into wetting powder.
Described carrier is kaolin, white carbon black, diatomite, potter's clay, precipitated calcium carbonate, clay, atlapulgite, talcum powder, chalky soil.
Described surfactant is an anionic, and nonionic and they compound can be NNO, BX, LS, lignosulfonates, carboxymethyl cellulose salt class, alkylsulfonate, fatty alcohol sulfonate, alkylphenol polyoxyethylene.
Described synergist is azone, permeable synergistic agent, N-ethanol based dodecylphenyl sodium sulfonate, bleeding agent CN.
Weed killer herbicide of the present invention, field control effectiveness test for many years by Anhui, Liaoning, the Inner Mongol, Hebei, Shandong, Henan and other places shows, be used for preventing and kill off all kinds of grassy weeds of corn field and broad leaved weed, as barnyard grass grass, green foxtail, wild oat, full green foxtail, lady's-grass, eleusine indica, lamb's-quarters, Amaranthus retroflexus, dayflower, Siberian cocklebur, Sheep's-parsley, Tong fiber crops, water sour jujube pin, corn-bind, wolf tail grass etc.Have the careless function of killing of significant weeding function, obvious synergistic effect and wide spectrum, and the harm of corn field whole growing weeds to corn, saving of work and time, increasing both production and income can be effectively controlled in a dispenser; Its consumption is lower than single agent consumption, thereby succession crop is had no effect, and to the corn high safety, is that corn is broadcast before the seedling of back and the improved seeds that cauline leaf is handled behind the seedling.
Embodiment sees the following form:
| Raw material | Quality (%) |
| Thifensulfuronmethyl | 0.1-25 |
| Nicosulfuron | 10-70 |
| Carrier | Supply 100 |
| Surfactant | 2-20 |
| Synergist | 3-10 |
| Consumption (g/ mu) | 15-20 |
| Integrated control effect (%) | ≥96 |
Claims (4)
1, a kind of herbicide for corn field, it is characterized in that: similar compound thifensulfuronmethyl and nicosulfuron with two kinds of different weeding mechanism are active ingredient, and are made by the active ingredient and the auxiliary agent of following quality percentage composition: thifensulfuronmethyl 0.1-25, nicosulfuron 10-70, surfactant 2-20, synergist 3-10, carrier complement to 100.
2, a kind of weed killer herbicide according to claim 1 is characterized in that: described carrier is on the high mountain range, on the white carbon black, diatom, potter's clay, bentonite, precipitated calcium carbonate, clay, atlapulgite, talcum powder, chalky soil.
3, a kind of weed killer herbicide according to claim 1 is characterized in that: described surfactant can be NNO, BX, LS, lignosulfonates, carboxymethyl cellulose salt class, alkylsulfonate, fatty alcohol sulfonate, alkylphenol polyoxyethylene.
4, a kind of weed killer herbicide according to claim 1 is characterized in that: described synergist is azone, permeable synergistic agent, N-ethanol based dodecylphenyl sodium sulfonate, bleeding agent CN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01127127 CN1226926C (en) | 2001-08-16 | 2001-08-16 | Herbicide for corn field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01127127 CN1226926C (en) | 2001-08-16 | 2001-08-16 | Herbicide for corn field |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1337159A CN1337159A (en) | 2002-02-27 |
| CN1226926C true CN1226926C (en) | 2005-11-16 |
Family
ID=4667119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01127127 Expired - Fee Related CN1226926C (en) | 2001-08-16 | 2001-08-16 | Herbicide for corn field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1226926C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303881C (en) * | 2004-09-17 | 2007-03-14 | 王洲 | Herbicide of wheat field |
-
2001
- 2001-08-16 CN CN 01127127 patent/CN1226926C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1337159A (en) | 2002-02-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051116 Termination date: 20120816 |