CN1067521C - Phytocide composition - Google Patents
Phytocide composition Download PDFInfo
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- CN1067521C CN1067521C CN98111270A CN98111270A CN1067521C CN 1067521 C CN1067521 C CN 1067521C CN 98111270 A CN98111270 A CN 98111270A CN 98111270 A CN98111270 A CN 98111270A CN 1067521 C CN1067521 C CN 1067521C
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- bensulfuron
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Abstract
The present invention relates to a high-effect broad-spectrum weeding composition which is prepared from bensulfuron methyl and propachlor used as main effective components and bensulfuron methyl and propisochlor used as the main effective components by mixture. The weed killer is suitable for preventing and exterminating various high-yield cultivation type field-piece weeds of the existing rice, can effectively prevent and exterminate broadleaf weeds, sedge family weeds and gramineae weeds in rice fields and also be used for rice seedling fields, dry seedling fields, direct sowing rice fields, transplantation rice fields and seedling throwing rice fields, and the present invention has the advantages of safety to the growth of the rice, no harmful effect on later crops, low agriculture cost and convenient use.
Description
The invention belongs to a kind of chemical herbicide.Relate to the chemical herbicide that use in the paddy field, particularly with known sulfonylurea herbicide and acetamide-group herbicides be re-dubbed efficiently, wide spectrum, Herbicidal combinations that consumption is few.
Development along with agricultural cience and farming techniques, entered since the eighties, various countries develop kinds such as bensulfuron-methyl, metsulfuron-methyl, green sulphur are grand, tribenuron-methyl, chlorimuronethyl, pyrazosulfuron, alachlor, Acetochlor, butachlor, isopropyl methoxalamine in sulfonylurea and acetamide-group herbicides, be used for field weeding.These chemical herbicides are greatly improved than the seventies level, and consumption greatly reduces, chemical herbicide apply the strong well stimulation that becomes the cost-saving, time and labour saving.
At present the weed killer herbicide kind of control rice weed is very abundant, and the representative kind of wherein preventing and kill off broad leaved weed and sedge weed and be main object has bensulfuron-methyl, pyrazosulfuron; The representative kind of preventing and kill off grassy weed and be main object has Acetochlor.But in the farmland, the multiple weeds symbiosis of the many often sections of weeds when adopting traditional weed killer herbicide to carry out single administration, often can not reach the purpose of effective management of weeds.So people just adopt the method for two or more mixture of herbicides to reach and both kill broad leaved weed, kill the purpose of grassy weed again.
In recent years, patent documentation and periodicals and magazines are also reported the effect and the broad spectrum activity that can improve weeding behind the various mixture of herbicides greatly in a large number.On the weed killer herbicide of joining in the paddy field summer was used, Chinese patent CN1074086A " Herbicidal combinations " discloses that bensulfuron adds Acetochlor, bensulfuron adds metsulfuron-methyl and Acetochlor combines binary or ternary weeding composition: Chinese patent CN1077587A " super-high-efficient weed killer herbicide-straw fear " disclosed bensulfuron-methyl, Acetochlor is the composite Herbicidal combinations of main active ingredient; The open fourth of Chinese patent CN1123085A " weed killer herbicide with broad-spectrum weed-killing activity " is by ternary compositions such as isopropyl methoxalamine, bensulfuron-methyl, metsulfuron-methyls; Chinese patent CN1092938A " efficient paddy field weed-killer composite " discloses the Herbicidal combinations of known amide substance Acetochlor, isopropyl methoxalamine, butachlor and sulfonylurea material metsulfuron-methyl, bensulfuron-methyl, the assembly of careless jinx's ternary.The chemical property of various weed killer herbicides and other materials that can be composite have also been introduced by Shanghai scientific and technical literature publishing house (in December, 1992 version) " farmland weed chemical control complete works ", to improve herbicidal effect.Though these kinds play the effect of removing of holding concurrently to preventing and kill off of weeds in paddy field, but because to the crop sensitivity, easily rice seedling is produced poisoning, most of kinds only limit to use on transplanting rice field, indivedual kinds are relatively poor to the safety of crop, operation technique requires high, and agricultural cost is higher, applies to be subjected to certain restriction.
The purpose of this invention is to provide a kind of transplanting rice field, rice seedling bed direct sowing rice field and rice transplanting paddy field weeding of being applicable to, and have the rice field of preventing and kill off broadleaved herb, sedge weed and grassy weed, effective, broad weed-killing spectrum, security performance is good, effective ingredient consumption is low, and toxicity is low, herbicide for paddy field easy to use.
The present invention realizes above-mentioned purpose by bensulfuron-methyl and propachlor as the active ingredient compounded combination.
The present invention includes sulfonyl urea compound and amides compound, be characterized in, sulfonyl urea compound is compound (1) 2-[[[[[(4,6-dimethoxypyridin-2-yl) amino] carbonyl] sulfonyl] methyl] methyl benzoate (bensulfuron-methyl), amides compound is compound (2) N-isopropyl-chloro acetanilide (propachlor); Compound (1), compound (2) structural formula are down:
Compound (1): bensulfuron-methyl (bensulfuron)
Compound (2): propachlor (Propachlor)
Compound (1) wherein: the mass ratio of compound (2) is 1: 0.5～1000.
Compound (1): the mass ratio of compound (2) is preferably 1: 7.
Compound (1) bensulfuron-methyl and compound (3) 2-ethyl-6-methyl-N-(the different third oxygen methyl) chloro acetanilide (propisochlor) are as the composite Herbicidal combinations that forms of active ingredient.The structural formula of compound (3) is down:
Compound (3): propisochlor (propisochlor)
Compound (1) wherein: compound (3) mass ratio exists: 1: 0.5～50.
The present invention finds that its drug effect is higher than both far away to be used separately, has more significant synergistic effect with compound (1) and compound (2) or compound (1) and the composite use of compound (3) on the research basis.The present invention according to different soils type, different weather conditions, different rice varieties, different planting, through drug effect, phytotoxicity test screening, has determined basic recipe, and according to material properties, has determined the formulation processing technology on research foregoing invention basis.
Herbicidal combinations of the present invention in use, be that elementary cell composite or with mu with compound (1) 0.5～10 restrain with mu with compound (3) be elementary cell composite form with compound (1) 0.5～10 gram and mu with compound (2) 5～500 grams with mu preferably.
The present invention becomes soluble powder, granule, four kinds of formulations of water dispersible granules with compound (1) with compound (2) with filler, auxiliary agent, wetting agent hybrid process.
Use adsorbents adsorb compound (3) to become soluble powder, wetting powder, granule, four kinds of formulations of water dispersible granules again with compound (1), filler, auxiliary agent hybrid process.
See accompanying drawing 1,2 killing weeds in rice field Herbicidal combinations soluble powder, wetting powder processing process schematic diagram, accompanying drawing 3,4 killing weeds in rice field Herbicidal combinations granules, water dispersible granules processing process schematic diagram.
Herbicidal combinations can be made above-mentioned four kinds of formulations, and effect is consistent, preferably uses wettable powder.
In the Herbicidal combinations of the present invention, the former medicine purity of compound (1) should be greater than 93% (mass ratio), compound (2), The former medicine purity of compound (3) should be greater than 95% (mass ratio), and result of use is better.
Effect of the present invention is that significantly Herbicidal combinations belongs to sulfonyl urea compound and amide-type compound binary combination, Ratio rice terrace herbicide in the past has the herbicide spectrum extensively, and herbicidal effect is more than 90%, and versatility is wide, bensulfuron-methyl and poisonous weeds The composite composition of amine is applicable to preventing and kill off of the various high-yield culturing type of existing paddy rice field weeds, can effectively prevent and kill off in the rice field Broadleaved herb, sedge weed and grassy weed; Can be used for irrigated mursery, dry nursery, direct sowing rice field, transplanting rice field and The rice transplanting rice field; Bensulfuron-methyl and the composite composition of isopropyl grass amine are applicable to preventing and kill off of transplanting rice weed. Paddy rice is grown Safety has no adverse effects to succession crop, and agricultural cost is low, and is easy to use. Adopt the present invention fill a prescription technology and processing worker Skill, energy consumption is low, and technical process adopts physical method, no coupling product and " three wastes " discharging, ambient influnence is little, is conducive to The protection ecological balance.
Below the present invention is described in more detail in conjunction with specific embodiments, make advantage of the present invention more obvious.
Embodiment 1,
Wetting powder:
Each component is (weight) umber
1.25 parts of bensulfuron-methyls
8.75 parts of propachlors
5.00 parts of dispersing agent MFs
3.00 parts of wetting agent OP
0.25 part of stabilizing agent
79.75 parts of fillers
Preparation technology: above-mentioned filler through coarse crushing, the former medicine of bensulfuron-methyl, the former medicine of propachlor and diffusant, wetting agent, bleeding agent are joined in the mixer one by one by metering, it is mixed.Pulverize with certain speed input airslide disintegrating mill.Material promptly obtains uniform powder through the double worm mixer mixing.Fineness is smaller or equal to 44 microns wetting powder.
Embodiment 2,
Soluble powder
Each component is: (weight) umber
2.0 parts of bensulfuron-methyls
12.0 parts of propisochlors
2.5 parts of methanonaphthalene sodium sulfonates
2.2 parts of epoxidized polyethers
57.3 parts in urea
24 parts of carbon blacks
Preparation technology: carbon black drops in the mixer, starts stirring, and propisochlor crude oil evenly is sprayed at carbon black through spray valve
In adsorb, after spraying finishes, be prepared by embodiment 1 preparation technology.
Embodiment 3
Granule
Each component is: (weight) umber
But 25 parts of the wet-millings of embodiment 1
67 parts in gypsum
8 parts in sodium carbonate
Preparation technology: but will be through screening, the gypsum of drying also preheating and wet-milling, and sodium carbonate drops into mixing in the comminutor, sprays water continuously in rotating granulation; when component forms particle, particle diameter is isolated particle when reaching 0.8mm; and dry and screening to it, it is 2.5% that the gained finished product contains effective composition.
Embodiment 4
Water dispersible granules
Each component is (weight)
8 parts of bensulfuron-methyls
16 parts of propisochlors
7 parts of methanonaphthalene sodium sulfonates
8 parts of epoxidized polyethers
30 parts in sodium sulphate
31 parts of carbon blacks
Preparation technology: carbon black drops in the mixer, and propisochlor crude oil evenly is sprayed in the carbon black through spray valve and adsorbs, and spraying is undertaken by embodiment 3 preparation technologies after finishing.
Application examples 1
The herbicidal effect that bensulfuron-methyl and propachlor are re-dubbed (but 10% malicious benzyl wet-milling) Herbicidal combinations sees Table one, table two.
But table one 10% malicious benzyl wet-milling is prevented and kill off 30 days investigation results behind the transplanting rice weed medicine
Unit: strain gram/m
2 
Illustrate:
1, experimental field piece: Changzhou fourth Nian Xiang, stubble wheat before the experimental field, for the precocious late round-grained rice of the rice varieties 9-92 that tries the water, soil fertility is medium.
2,1997.6.23 transplants, and at 32 days length of time rice seedlings grow, 1997.6.28 holds in the field 3～4 centimetres of water layers, stirs chemical fertilizer and evenly spreads fertilizer over the fields, and the water conservation layer is more than 7 days after the medication.
3, test unit: Jiangsu Institute for Pesticides's Changzhou plant test station for plant protection.
4, institute's with medicament is Changzhou Pesticide Plant and produces except that 60% butachlor is commercially available (homemade).
60 days effects behind the table two 10% benzyl poison WP control paddy field weed medicine
Illustrate:
1, experimental field piece: experimental plot, Zhejiang Academy of Agricultural Science late rice, preceding stubble rape, soil is little silt, pH6, the content of organic matter is 2.6%.
2, experimental cultivar: japonica rice " 9410 ".
3, transplanted June 23, at 29 days length of time rice seedlings grow, medication in June 29 is mixed the fine sand shoaling layer and is spread fertilizer over the fields, and 3 centimetres of water conservations of water layer are 7 days before the dispenser.
4, test unit: Inst. of Plant Protection, Zhejiang Prov. Academy of Agricultural Sciences.
Application examples 2
But bensulfuron-methyl and propisochlor are re-dubbed 10% benzyl and pounce on wet-milling control and transplant, behind the paddy field weed medicine 30 days, 62 days effects see Table three, table four.30 days investigation results behind table three medicine
Unit: strain gram/m
2 
Illustrate:
1, experimental field piece: the precocious late round-grained rice of Changzhou fourth low bank between fields township experimental cultivar: 9-92
2, soil, middle fertility, main weeds barnyard grass grass, Monochoria vaginalis, glimmering Lin, the abiogenesis amount is medium lays particular stress on.
3, transplanted 32 days length of time rice seedlings grow June 23, medication on June 28 is mixed the chemical fertilizer shoaling layer and is spread fertilizer over the fields.
4, test unit: Jiangsu Institute for Pesticides, Changzhou plant protection unit.
Table four 10% benzyl is pounced on 62 days effect of WP control paddy field weed
Illustrate:
1, experimental field piece: experimental plot, Zhejiang Academy of Agricultural Science late rice, preceding stubble rape, soil is little silt, the pH6 content of organic matter 2.64%.
2, transplanted June 23, at 30 days length of time rice seedlings grow, the water holding layer is 3 centimetres before the medication in June 30, dispenser, mixes the fine sand shoaling layer and spreads fertilizer over the fields behind the medicine water conservation 5 days.
4, test unit: Inst. of Plant Protection, Zhejiang Prov. Academy of Agricultural Sciences.
Claims (2)
1, a kind of Herbicidal combinations of killing weeds in rice field includes sulfonyl urea compound and amides compound, it is characterized in that: sulfonyl urea compound is compound (a 1) bensulfuron-methyl, and amides compound is compound (a 2) propachlor; Compound (1), compound (2) structural formula are down:
Compound (1): bensulfuron-methyl (bensulfuron)
Compound (2): propachlor (Propachlor)
Compound (1) wherein: the mass ratio of compound (2) is 1: 7.
2, Herbicidal combinations according to claim 1 is characterized in that: active ingredient compound (1) and active ingredient compound (2) are mixed into soluble powder, wetting powder, granule or four kinds of formulations of water dispersant with filler, auxiliary agent, wetting agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98111270A CN1067521C (en) | 1998-04-29 | 1998-04-29 | Phytocide composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98111270A CN1067521C (en) | 1998-04-29 | 1998-04-29 | Phytocide composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1198888A CN1198888A (en) | 1998-11-18 |
| CN1067521C true CN1067521C (en) | 2001-06-27 |
Family
ID=5221264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98111270A Expired - Lifetime CN1067521C (en) | 1998-04-29 | 1998-04-29 | Phytocide composition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1067521C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103798267A (en) * | 2014-02-27 | 2014-05-21 | 江苏省激素研究所股份有限公司 | Herbicide composition used in direct-seeding rice fields |
| CN109526963A (en) * | 2018-12-26 | 2019-03-29 | 北京颖泰嘉和生物科技股份有限公司 | A kind of herbicidal composition and its application |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1183217A (en) * | 1996-11-25 | 1998-06-03 | 由振国 | Herbicidal composition contg. PrPisochlor |
-
1998
- 1998-04-29 CN CN98111270A patent/CN1067521C/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1183217A (en) * | 1996-11-25 | 1998-06-03 | 由振国 | Herbicidal composition contg. PrPisochlor |
Non-Patent Citations (3)
| Title |
|---|
| 国外农药品种手册(一) 1980.6.1 化学工业部农药情报中心站 * |
| 国外农药品种手册(一) 1980.6.1 化学工业部农药情报中心站;国外新农药品种手册 1992.10.1 沙家骏等，化学工业，出版社 * |
| 国外新农药品种手册 1992.10.1 沙家骏等，化学工业，出版社 * |
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| Publication number | Publication date |
|---|---|
| CN1198888A (en) | 1998-11-18 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU CHANGLONG CHEMICAL CO. Free format text: FORMER NAME OR ADDRESS: CHANGZHOU PESTICIDE PLANT |
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| CP01 | Change in the name or title of a patent holder |
Patentee after: Changlong Chemical Co., Ltd., Jiangsu Prov. Patentee before: Changzhou Pesticide Plant |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20010627 |