CN1060195A - A kind of herbicidal composition of killing weeds in rice field - Google Patents
A kind of herbicidal composition of killing weeds in rice field Download PDFInfo
- Publication number
- CN1060195A CN1060195A CN 91105612 CN91105612A CN1060195A CN 1060195 A CN1060195 A CN 1060195A CN 91105612 CN91105612 CN 91105612 CN 91105612 A CN91105612 A CN 91105612A CN 1060195 A CN1060195 A CN 1060195A
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- China
- Prior art keywords
- butachlor
- herbicidal composition
- emulsifier
- rice
- rice field
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Abstract
A kind of herbicidal composition of killing weeds in rice field is characterized in that it consists of butachlor 20-40%, 2, and 4-DJ ester 5-15%, emulsifier 8-10%, solvent are mended to 100%.The present invention can prevent and kill off rice field grassy weed and broad leaved weeds, and herbicidal effect can effectively be controlled crop smothering more than 40 days more than 90%, has prolonged butachlor service life.Paddy rice had promote the growth effect, thereby make increasing production of rice, increase production and be 10-15%.Technology is simple, and is with low cost.
Description
The present invention relates to a kind of herbicidal composition of killing weeds in rice field.
At present, commercially available herbicides for use in paddy mostly is butachlor, butachlor is to grass tree section barnyard grass grass, the various nutgrass flatsedges of sedge family, fescue has good preventive effect, but along with the butachlor increase of service life, variation has taken place in paddy land weed on population, weeds gramineous are to reduce to some extent, and the broad leaved weed of broad leaved weed class increases to some extent, as the Monochoria vaginalis of broad-leaf weeds, cusp flower, short arrowhead, mexicana etc., broad-leaf weeds particularly causes bigger harmfulness in the prometaphase of paddy growth to the ventilation and penetrating light of paddy rice.Agricultural chemicals circle a kind of compound herbicide that begins one's study as Chinese patent application number 89103089.1 composite herbicide for paddy field, is basic medicine with butachlor exactly for this reason, increases symetryne again, mcpa sodium is a compound herbicide.This compound weed killer herbicide has good preventive effect to grassy weed and broad leaved weeds, solved the disadvantage of single variation that paddy land weed is taken place with butachlor on population, after adopting mcpa sodium, this compound certain degree of difficulty is arranged to manufacturing missible oil, make complex process, cost increases.
The herbicidal composition that the purpose of this invention is to provide a kind of killing weeds in rice field, can not only prevent and kill off grassy weed effectively and use broad leaved weeds, and can play regulating action, thereby can make paddy rice obtain volume increase rice growth, and technology is simple, and is with low cost.
Technical solution of the present invention is: to remove the butachlor of grassy weed, can play 2 of plant growth regulator with removing broad leaved weed and while, the design of mixture of 4-DJ butyl ester is processed into missible oil, and its composition is:
Butachlor 20-40%
2,4-DJ ester 5-15%
Emulsifier 8-10%
Solvent is mended to 100%
Emulsifier is the mixture of castor oil polyoxyethylene ether and calcium dodecyl benzene sulfonate in the above-described composition.
Solvent of the present invention is a benzene.
Through the laboratory animal toxicological test, per os is taken in acute L about composition of the present invention
D50Being 2.984g/Kg, is that 2930mg/Kg(belongs to low toxicity level through the dosis tolerata of skin viral infection test maximum), acute skin irritation test is a nonirritant.
The mixture herbicide synergy test
Annotate: 37 days investigation herbicidal effects after the dispenser
The present composition is planted paddy field weeding effect Dongguan at skewer and was early made in 1991
| Item place order reason | Wild kind eating | Short arrowhead | Two barnyard grass ditch millets | Monochoria vaginalis | Four leaf duckweeds | Water peanut | Amount to | |
| N% | N% | N% | N% | N% | N% | N% | ||
| Present composition 35g/ mu ai | 4.5 77.6 | 0.9 82.4 | 0 100 | 0 100 | 0 100 | 0.9 82.4 | 6.3 86.3 | |
| Butachlor 50g/ mu ai | 9.3 53.7 | 2.4 52.9 | 0 100? | 5.1? 53.6 | 1.5 61.5 | 2.7 47.1 | 21 54.5 | |
| CK | 20.1?/ | 5.1 / | 0.9 / | 11 / | 3.9 / | 5.1 /? | 46.1 / | |
Annotate: weeds strain number is 0.3 square metre of triadic mean, an area in the table, and N represents that weeds strain number, % represent herbicidal effect
The present invention makes up killing weeds in rice field efficacy survey table place: Lechang, Guangdong county
Annotate: 1,5 samplings of investigation area, every some 2R
2, totally 10 square chi of bar numbers.
2, control fescue effect is remarkable, and the second survey preventive effect is 100%.
Present composition killing weeds in rice field increasing yield of paddy table
Nineteen ninety early makes
The method that imposes on the rice field with composition of the present invention is behind the rice transplanting three days, by every mu of 100ml with spread fertilizer over the fields after urea mixes, water layer is arranged during dispenser, and after dispenser, keep seven days water layers, just can obtain the herbicidal effect more than 90%, can control crop smothering effectively more than 40 days, these 2 effects that all are higher than single with butachlor ec also can make increasing yield of paddy 10-15% simultaneously.
Advantage of the present invention is to prevent and kill off grassy weed and broad leaved weeds effectively, overcome the disadvantage that single weeds in paddy field population of causing with herbicide butachlor changes, to the person poultry harmless, good to rice strain safety, and can play regulating action to rice growth, can promote increasing production of rice to prolong butachlor service life, manufacture craft is simple, and is with low cost.
Embodiment one,
Butachlor 25.5%
2,4-D butyl ester 9.5%
0204 emulsifier 8%
Purified petroleum benzin is mended to 100%
Emulsifier among the embodiment is commercially available 0204 emulsifier, is the mixture that contains castor oil, APEO and calcium dodecyl benzene sulfonate.
Solvent among the embodiment is a benzene.
Present embodiment is with butachlor and 2, and the 4-D butyl ester adds to be adjusted pot interior a mixing, adds emulsifier and solvent again, after stirring, packs with packing machine.
Embodiment two:
Butachlor 23%
2,4-D butyl ester 11%
8206 emulsifier 8%
Dimethylbenzene is mended to 100%
8206 emulsifier among the embodiment two also are commercially available emulsifier, and production method is with embodiment one.
Claims (4)
1, a kind of herbicidal composition of killing weeds in rice field is characterized in that: weight ratio:
By butachlor 20-40%;
2,4-DJ ester 5-15%;
Emulsifier 8-10%;
Solvent is mended to 100%;
Make missible oil.
2, herbicidal composition according to claim 1 is characterized in that best group becomes:
Butachlor 25.5%
2,4-DJ ester 9.5%
0204 emulsifier 8%
Purified petroleum benzin is mended to 100%
3, herbicidal composition according to claim 1 and 2 is characterized in that emulsifier is the mixture of castor oil polyoxyethylene ether and calcium dodecyl benzene sulfonate.
4, herbicidal composition according to claim 1 and 2 is characterized in that solvent is a non-polar solven, preferably benzene or dimethylbenzene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91105612 CN1029288C (en) | 1991-08-09 | 1991-08-09 | Composite weedicide for killing weeds in rice field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91105612 CN1029288C (en) | 1991-08-09 | 1991-08-09 | Composite weedicide for killing weeds in rice field |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1060195A true CN1060195A (en) | 1992-04-15 |
| CN1029288C CN1029288C (en) | 1995-07-12 |
Family
ID=4907259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91105612 Expired - Fee Related CN1029288C (en) | 1991-08-09 | 1991-08-09 | Composite weedicide for killing weeds in rice field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1029288C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103960253A (en) * | 2013-01-25 | 2014-08-06 | 山东先达农化股份有限公司 | Paddy field weed killer composition containing propanil and clomazone |
| CN107347887A (en) * | 2017-07-13 | 2017-11-17 | 修文谷堡沁香猕猴桃生态园 | A kind of herbicide for Kiwi berry plantation and preparation method thereof and application method |
-
1991
- 1991-08-09 CN CN 91105612 patent/CN1029288C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103960253A (en) * | 2013-01-25 | 2014-08-06 | 山东先达农化股份有限公司 | Paddy field weed killer composition containing propanil and clomazone |
| CN103960253B (en) * | 2013-01-25 | 2016-08-24 | 山东先达农化股份有限公司 | Containing Stam F-34, the herbicide composition for paddy fields of different grass pine |
| CN107347887A (en) * | 2017-07-13 | 2017-11-17 | 修文谷堡沁香猕猴桃生态园 | A kind of herbicide for Kiwi berry plantation and preparation method thereof and application method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1029288C (en) | 1995-07-12 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |