CN1389117A - Rice field herbicide for earlier stage application - Google Patents
Rice field herbicide for earlier stage application Download PDFInfo
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- CN1389117A CN1389117A CN 02113195 CN02113195A CN1389117A CN 1389117 A CN1389117 A CN 1389117A CN 02113195 CN02113195 CN 02113195 CN 02113195 A CN02113195 A CN 02113195A CN 1389117 A CN1389117 A CN 1389117A
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- rice field
- bensulfuron
- chloro
- isoproturon
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Abstract
The early haulm weedicide for rice field is formed from isoprotuion, quinclorac and bensulfuron-methyl with the mixing ratio of 1:0.1-150:0.02-40, its optimum ratio of 1:1-2.5:0.2-1. Its raw material composition also contains auxiliary component dispersing agent and cleaning agent whose effective content is respectively 1-8% of total weight of its effective component, and contains proper quantity of filling material. it possesses obvious synergistic effect, and has obvious weed-killing effect, and is applicable to early weed control in rice field where seedlings come into 1-4 leaves, and its application optimum period is wide.
Description
(one) technical field
The present invention relates to a kind of herbicide for paddy field, particularly be applicable to the rice field herbicide for earlier stage application of using during rice seedling 1～4 leaf, belong to pesticide field.
(two) background technology
In recent years, there has been bigger reform in the vast rural area of China to the type of seeding of paddy rice, traditional elder generation ploughs the method for afterwards broadcasting and is replaced by the no-tillage and direct-seeding method, that have in addition also wheatland directly cover broadcast paddy rice, new cultivation method has alleviated peasant's labour intensity greatly, but the problem of thereupon bringing is, live field weed amount is of a great variety greatly, particularly moleplant seed and and the quantity of barnyard grass grass class obviously increase than general rice field.Though and the weed killer herbicides such as the third careless amine, butachlor and complexing agent thereof that present China is used for paddy field weeding can be prevented and treated multiple weeds, but still have suitable kind weeds can't kill or preventive effect relatively poor, particularly can not kill moleplant seed, even the seedling of wound phenomenon arranged, the weeding needs that can not adapt to live field, in addition, this class weed killer herbicide majority is used behind the bud before the bud of paddy rice, the medication phase is generally shorter, easily because of missing optimal application phase occur the missing the season phenomenon of drug effect shakiness.Therefore developing a kind of wide spectrum of suitable rice direct seeding field use, efficiently, effectively using long weed killer herbicide of phase is the eager desire of wide farmers.
(3) summary of the invention
The objective of the invention is the demand at China's paddy field tillage method change, a kind of rice field herbicide for earlier stage application is provided, it can overcome above-mentioned traditional weed killer herbicide shortcoming, has broad weed-killing spectrum, to rice safety, effectively uses long characteristics of phase.
Paddy rice herbicide for earlier stage application of the present invention contains active ingredient isoproturon, 2 chloro-quinolinic acids and bensulfuron, contains auxiliary element dispersant, remover, and all the other are filler, and the weight ratio of three kinds of active ingredients is
Isoproturon: 2 chloro-quinolinic acids: bensulfuron=1: 0.1～150: 0.02～40, better ratio is
Isoproturon: 2 chloro-quinolinic acids: bensulfuron=1: 0.5～5: 0.1～2, first-selected ratio is
Isoproturon: 2 chloro-quinolinic acids: bensulfuron=1: 1～2.5: 0.2～1; The content of dispersant and detergent be respectively three kinds of active ingredients total amount 1～8%, filler is an amount of.
Wherein the change formula of isoproturon is
, the chemical structural formula of 2 chloro-quinolinic acids
, the bensulfuron chemical structural formula is
Detergent is
Dispersant NNO is a di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate; Filler is common diatomite
Isoproturon was a kind of dry land herbicide in the past, the present invention finds through experiment, use it for the paddy field, removing activity heightens, thereby consumption reduces, safety improves, it and 2 chloro-quinolinic acids and bensulfuron are combined into ternary preparation of the present invention after, overcome the deficiency of independent effect separately, synergy is obvious, spread spectrum is made good use of, and is applicable to during seedlings of cereal crops growths 1～4 leaf to use the optimum period for applying fertilizer broad in about 10 days, realize that the people see careless weeding, avoid the deficiency that blindness is used before not emerging, broad weed-killing spectrum, highly effective and safe.Can be applicable to the cauline leaf weeding in early stage in water direct seeding, direct-sowing dry and the live field of rice cover wheat, every mu of dosage 40～80 grams.
(four) embodiment
Embodiment 1 (weed killer herbicide of the present invention prepares example)
By isoproturon: 2 chloro-quinolinic acids: the weight ratio of bensulfuron=1: 0.8: 0.5 takes by weighing 6 kilograms of isoproturons, 4.8 kilograms of 2 chloro-quinolinic acids, 3 kilograms of bensulfurons, take by weighing 0.6 kilogram of detergent, 0.6 kilogram of dispersant, 2 kilograms in filler diatomite, stir 0.5 hour or more with agitator above material, send into air-flow and morcel in the machine with high pressure draught and spray refinement, the above particulate finished product of 400 orders, with the specification packing of every bag 40,60 grams or 80 grams.
Embodiment 2 (the application effect example of active ingredient different proportion)
Three kinds of active ingredients of weed killer herbicide of the present invention are mixed with 12 sequence number reagent of different proportion, every kind of reagent in the greenhouse to respectively three groups of unifacial leaf dogstail and three groups of dicotyledonous water peanuts being used, and with the contrast of not medication group, result of the test is listed in table one.
Table one Suzhou City precious band agricultural chemicals Co., Ltd is to isoproturon+2 chloro-quinolinic acids+bensulfuron composition greenhouse weeding test report
| Reagent active constituent content (gram/mu) | Residual dogstail number (strain) | Residual water peanut number (strain) | Dogstail preventive effect % | Water peanut preventive effect % | Overall preventive effect % | ?- ?X％ | |||||||||||||||
| Sequence number | Isoproturon | 2 chloro-quinolinic acids | Bensulfuron | ||||||||||||||||||
| I | ?II | ?III | ?I | ?II | ?III | ?I | ?II | ?III | ?I | ?II | ?II | ?I | ?II | ?III | |||||||
| ?1 | ?0.1 | ?15 | ?4 | ?16 | ?17 | ?15 | ?0 | ?1 | ?0 | ?60.9 | ?58.0 | ?643 | ?100 | ?96.9 | ?100 | ?80.5 | ?77.5 | ?82.2 | ?80.0 | ||
| ?2 | ?3 | ?13 | ?3 | ?13 | ?15 | ?12 | ?1 | ?3 | ?1.5 | ?68.3 | ?62.9 | ?71.4 | ?97.1 | ?90.8 | ?95.7 | ?82.3 | ?76.9 | ?83.6 | ?80.9 | ||
| ?3 | ?6 | ?11 | ?2 | ?3 | ?1 | ?2.5 | ?2 | ?3 | ?4 | ?92.7 | ?97.5 | ?94.0 | ?94.3 | ?90.8 | ?88.6 | ?93.6 | ?94.2 | ?91.3 | ?93.0 | ||
| ?4 | ?12 | ?9 | ?1 | ?2 | ?1.0 | ?1.5 | ?9 | ?11 | ?14 | ?95.1 | ?97.5 | ?96.4 | ?74.3 | ?66.4 | ?60.0 | ?84.7 | ?81.9 | ?78.2 | ?81.6 | ||
| ?5 | ?14 | ?7 | ?0.8 | ?0.1 | ?0.6 | ?0.2 | ?13 | ?15 | ?11.7 | ?99.8 | ?98.5 | ?99.5 | ?62.9 | ?54.1 | ?32.7 | ?81.4 | ?76.3 | ?66.1 | ?74.6 | ||
| ?6 | ?16 | ?5 | ?0.7 | ?0.3 | ?0.2 | ?0.5 | ?15 | ?19 | ?17.5 | ?99.3 | ?99.5 | ?98.8 | ?57.1 | ?41.9 | ?50.0 | ?78.2 | ?70.7 | ?53.5 | ?67.5 | ||
| ?7 | ?18 | ?3 | ?0.6 | ?7 | ?9 | ?11 | ?17 | ?17.9 | ?19.5 | ?82.9 | ?77.7 | ?73.8 | ?51.4 | ?45.3 | ?44.3 | ?67.2 | ?61.5 | ?59.1 | ?62.6 | ||
| ?8 | ?20 | ?1.5 | ?0.4 | ?7 | ?7 | ?8 | ?13 | ?15 | ?14.7 | ?82.8 | ?82.7 | ?80.9 | ?62.9 | ?54.1 | ?58.0 | ?72.9 | ?68.4 | ?69.5 | ?69.9 | ||
| ?9 | ?22 | ?0.75 | ?0.3 | ?17 | ?18 | ?16.5 | ?9 | ?10 | ?11 | ?58.5 | ?43.2 | ?60.7 | ?74.3 | ?69.4 | ?68.6 | ?66.4 | ?56.3 | ?64.7 | ?62.5 | ||
| ?10 | ?25 | ?0 | ?0 | ?25 | ?27 | ?27.5 | ?27 | ?29 | ?27.9 | ?39.0 | ?33.3 | ?34.5 | ?22.9 | ?11.3 | ?20.3 | ?30.9 | ?22.3 | ?27.4 | ?26.9 | ||
| ?11 | ?0 | ?15 | ?0 | ?29 | ?31 | ?30 | ?7 | ?6 | ?6.7 | ?68.3 | ?23.4 | ?28.6 | ?80.0 | ?81.7 | ?80.9 | ?74.2 | ?52.6 | ?54.8 | ?60.5 | ||
| ?12 | ?0 | ?0 | ?4 | ?38 | ?37 | ?44 | ?11 | ?7 | ?9.9 | ?7.3 | ?8.6 | ?0.0 | ?68.6 | ?78.6 | ?71.7 | ?37.9 | ?43.6 | ?35.9 | ?39.2 | ||
| ?13 | Not medication contrast | ?41 | ?40.5 | ?42.0 | ?35 | ?32.7 | ?35.0 | ?- | ?- | ?- | ?- | ?- | ?- | ?- | ?- | ?- | ?- | ?- | |||
Annotate: dogstail is moleplant seed and barnyard grass grass in the table, and the two mu adds up to 1: 1
Calculate isoproturon in sequence number 1～sequence number 12 each reagent according to each composition effective ingredient consumption of last table: 2 chloro-quinolinic acids: the proportioning of bensulfuron is as follows respectively:
Sequence number 1 is that 1: 150: 40 sequence number 7 is 1: 0.17: 0.03
Sequence number 2 is that 1: 4.33: 1 sequence number 8 is 1: 0.08: 0.02
Sequence number 3 is that 1: 1.83: 0.33 sequence number 9 is 1: 0.03.: 0.01
Sequence number 4 is that 1: 0.75: 0.08 sequence number 10 is 1: 0: 0
Sequence number 5 is that 1: 0.5: 0.06 sequence number 11 is 0: 1: 0
Sequence number 6 is that 1: 0.31: 0.04 sequence number 12 is 0: 0: 1
Test result shows: 1. sequence number 10 single with isoproturon to dogstail, water peanut weak effect, preventive effect≤30%; Sequence number 11 lists have preventive effect preferably with 2 chloro-quinolinic acids to water peanut, but undesirable to the dogstail preventive effect; Sequence number 12 is single all undesirable to single, double cotyledon weeds preventive effect with bensulfuron.2. isoproturon effective dose 6g in sequence number 3 complex reagents, 2 chloro-quinolinic acid 11g, preventive effect 〉=90% of bensulfuron 2g combination (three's weight ratio is 1: 1.83: 0.33), the said composition drug effect has surpassed high consumption 2 chloro-quinolinic acids (15g) in the high consumption isoproturon (22g) and sequence number 1 and the herbicidal effect of the high concentration bensulfuron (4g) in the sequence number 1 in the sequence number 9, from economy, safety, wide spectrum, efficient aspects analysis-by-synthesis, sequence number 3 reagent are more satisfactory proportioning in this test, sequence number 1,2,4,5,6 take second place, sequence number 7,8,9 is relatively poor, sequence number 10,11,12 is the poorest.
Embodiment 3 (weed killer herbicide of the present invention and the live clean application effect comparative example of the third careless amine weed killer herbicide):
This example adopts each composition weight percentage composition of weed killer herbicide of the present invention (careless little general) to be:
Isoproturon 44%
2 chloro-quinolinic acids 30%
Bensulfuron 4%
Detergent 1.0%
Dispersant 4.0%
The filler surplus
The weed killer herbicide of the present invention of above proportioning is tempered into pasty state by the amount of application of 50 gram/mus, add 40～50 kilograms of entry by every mu then, evenly spray with sprayer.February 28 calendar year 2001 sowing time, 12 days March calendar year 2001 of spraying time, April 4 calendar year 2001 control time, comparing result such as table two, " careless little general " is weed killer herbicide trade name of the present invention in the table, and " 78% " is meant that total active ingredient total content is 78% in above-mentioned three kinds of weed killer herbicides.Table two
| Handle | 78% careless little general | Live clean | Not medication |
| Dose gram/mu | ????50 | ||
| Average residual dogstail (strain) | ????2.5 | ????17.2 | ????37 |
| Preventive effect % | ????93.24 | ????80.54 | ????- |
| Average residual broadleaved herb (strain) | ????1.2 | ????8.7 | ????92.0 |
| Preventive effect % | ????98.7 | ????90.54 | |
| The rice growth situation | Good | Good | Good |
From last table as seen, weed killer herbicide of the present invention " careless little general " preventive effect of grass family and broad leaved weeds has been surpassed 90%, wherein to the preventive effect of dogstail than live clear height more than 10%, high more than 8.0% to the preventive effect of broadleaved herb.In addition, show, use that " careless little general's the rice seedling and the rice seedling indifference in medication district not prove that weed killer herbicide of the present invention is safe and harmless to rice seedling through safety examination result.
Claims (4)
1. rice field herbicide for earlier stage application is characterized in that containing active ingredient isoproturon, 2 chloro-quinolinic acids and bensulfuron, contains auxiliary element dispersant, remover, and all the other are filler, more than the weight ratio of three kinds of active ingredients be:
Isoproturon: 2 chloro-quinolinic acids: bensulfuron=1: 0.1～150: 0.02～40, the content of dispersant and detergent be respectively three kinds of active ingredients total amount 1～8%, filler is an amount of.
2. according to the rice field herbicide for earlier stage application of claim 1, it is characterized in that the weight ratio of three kinds of active ingredients is:
Isoproturon: 2 chloro-quinolinic acids: bensulfuron=1: 0.5～5: 0.1～2,
3. according to the rice field herbicide for earlier stage application of claim 1, it is characterized in that the weight ratio of three kinds of active ingredients is:
Isoproturon: 2 chloro-quinolinic acids: bensulfuron=1: 1～2.5: 0.2～1;
Claim 1 or or rice field herbicide for earlier stage application in the application of the direct sowing rice field weeding of water direct seeding, direct-sowing dry and rice cover wheat, it is characterized in that tempering into pasty state by the amount of application of 40 grams～80 gram/mus, add entry by every mu then and mix well for 40～50 kilograms, evenly spray with sprayer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02113195 CN1389117A (en) | 2002-06-19 | 2002-06-19 | Rice field herbicide for earlier stage application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02113195 CN1389117A (en) | 2002-06-19 | 2002-06-19 | Rice field herbicide for earlier stage application |
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| Publication Number | Publication Date |
|---|---|
| CN1389117A true CN1389117A (en) | 2003-01-08 |
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| CN 02113195 Pending CN1389117A (en) | 2002-06-19 | 2002-06-19 | Rice field herbicide for earlier stage application |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103283757A (en) * | 2013-05-22 | 2013-09-11 | 吴江市德佐日用化学品有限公司 | Weeding composition containing bensulfuron methyl and quinclorac |
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2002
- 2002-06-19 CN CN 02113195 patent/CN1389117A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103283757A (en) * | 2013-05-22 | 2013-09-11 | 吴江市德佐日用化学品有限公司 | Weeding composition containing bensulfuron methyl and quinclorac |
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