CN102197812A - Novel herbicides for paddy field - Google Patents

Novel herbicides for paddy field Download PDF

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Publication number
CN102197812A
CN102197812A CN2011100857764A CN201110085776A CN102197812A CN 102197812 A CN102197812 A CN 102197812A CN 2011100857764 A CN2011100857764 A CN 2011100857764A CN 201110085776 A CN201110085776 A CN 201110085776A CN 102197812 A CN102197812 A CN 102197812A
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CN
China
Prior art keywords
paddy field
weeds
paddy
active ingredient
field
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.)
Pending
Application number
CN2011100857764A
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Chinese (zh)
Inventor
曹延明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Yanhua Yongle Pesticide Co Ltd
Original Assignee
Beijing Yanhua Yongle Pesticide Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Yanhua Yongle Pesticide Co Ltd filed Critical Beijing Yanhua Yongle Pesticide Co Ltd
Priority to CN2011100857764A priority Critical patent/CN102197812A/en
Publication of CN102197812A publication Critical patent/CN102197812A/en
Pending legal-status Critical Current

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Abstract

The invention provides novel herbicides for paddy field and a use method for utilizing the novel herbicides to prevent and kill off the weeds in the paddy field. The invention belongs to the field of agricultural chemicals for killing off weeds and in particular relates to herbicides for killing off the weeds in the paddy fields. The invention aims to provide a method for utilizing a diphenyl ethers stem leaf finishing agent to prevent and kill off the weeds in the paddy field, so the paddy rice cannot be hurt and the aim of preventing and killing off the weeds in the paddy field is achieved.

Description

One class paddy field novel herbicide
Technical field
The invention belongs to agriculture weeding field of chemicals, it relates to weed killer herbicide and using method thereof that a class is applicable to that mainly the paddy field field weeding is used.
Background technology
Diphenyl ether herbicide nineteen thirty Raiford etc. has synthesized nitrofen, after nineteen sixty Rhom and Hass (Rohm and Haas) carries out synthetic again and finds its activity of weeding, has started diphenyl ether herbicide.This type of weed killer herbicide has large development over nearly 30 years.Successively develop a lot of new varieties, what gaze at especially is to develop some high activity new varieties, as first carboxylic ether (thatch poison), Oxyfluorfen (if so), acifluorfen (weeds are burnt), fomesafen (prowers) fluoroglycofen-ethyl etc.Their activity of weeding surpasses nitrofen more than 10 times, thereby the unit are dosage descends greatly.Simultaneously, expansion is applied to multiple dry crop and vegetables.Diphenyl ether herbicide mainly absorbs by plant embryos bud scale, mesocotyl and enters in the body.Action target is a proporphyrinogen oxidase, suppresses chlorophyllous synthetic, destroys the cell membrane of sensitive plant.To close degree relevant with absorbing conduction, accretion rate and the yoke in plant corpus for the selectivity of this type of weed killer herbicide.
Oxyfluorfen (oxyfluorfen) chemical name: 2-chloro-4-trifluoromethyl-3'-hydroxyl-4'-nitrobenzophenone ether.
Acifluorfen (acifluorfen sodium) chemical name: 5-(2-chloro-4-(trifluoromethyl)-phenoxy group)-2-nitrobenzoyl acid sodium-salt.
Fomesafen (fomesafen) chemical name: 5-(2-chloro-4-(trifluoromethyl) phenoxy group)-N-(methyl sulphonyl)-2-nitrobenzamide.
Lactofen (lactofen) chemical name: ethyl ester 2-nitro-5-(2-chloro-4-4-trifluoromethylphenopendant) benzoic acid-1-(carbethoxyl group).
Fluoroglycofen-ethyl (Fluoroglycofen) chemical name: 0-[5-(2-chloro-a, a, a-three fluoro-are right-toloxyl)-the 2-nitro benzoyl] the fluoroacetic acid ethyl ester.
Ethoxyfenethyl ethyl ester (ethhoxyfen-ethyl) chemical name: O-(2-chloro-5-(2-chloro-a, a, a-three fluoro-P-tolyl oxygen) benzoyl)-the L-ethyl lactate.
Oxyfluorfen is made processing soil treatment agent, can prevent and kill off annual broadleaved herb and gramineous grass, and acifluorfen, sulphur AKH7088, lactofen, fluoroglycofen-ethyl etc. are made the cauline leaf inorganic agent, only effective to broadleaved herb, be used for legume crop, can not be used for the paddy field to paddy rice generation poisoning because cauline leaf is handled.
Summary of the invention
The purpose of this invention is to provide a kind of method and make diphenyl ether cauline leaf inorganic agent be applied to the paddy field management of weeds,, can reach again and prevent and kill off the paddy land weed purpose both to rice safety.
The technical solution adopted in the present invention is as follows:
1. do not have the cauline leaf inorganic agent of extended residual to be used for the paddy field management of weeds in the diphenyl ether herbicide in soil, this diphenyl ether herbicide is meant the pesticidal preparations of active ingredients such as containing acifluorfen, lactofen, fluoroglycofen-ethyl, ethoxyfenethyl ethyl ester.
2. the feature of the application method of the weed killer herbicide of above-mentioned diphenyl ether is to have under the condition of water layer at paddy field, adopts the mode dispenser of non-cauline leaf spraying.Concrete grammar is: the single or complex preparation that will contain mentioned component, mix with certain proportion with soil, fertilizer, fine sand, evenly spread fertilizer over the fields in the water layer of paddy field, or unitary agent is spread fertilizer over the fields at rice field, or unitary agent is converted water paddy rice unreasonable like a shrew in the ranks, form the pastille water layer,, reach the purpose of management of weeds rice safety.
3. the preparation method characteristic of above-mentioned diphenyl ether herbicide is: with one or more active ingredients in acifluorfen, lactofen, fluoroglycofen-ethyl, the ethoxyfenethyl ethyl ester, single or with the mixture of herbicides of other kinds, be processed into the formulations of pesticide that are fit to spread fertilizer over the fields, these formulations comprise granule in the pesticidal preparations, water dispersible granules, effervescent tablet, medicine fertilizer, aqua, missible oil, suspending agent etc., and weed killer herbicide is dispersed in the water layer in paddy field.
4. the using dosage characteristics of above-mentioned diphenyl ether herbicide in paddy field are: calculate acifluorfen active ingredient 5g-90g/ mu, lactofen active ingredient 5g-50g/ mu, fluoroglycofen-ethyl active ingredient 5g-50g/ mu with the effective ingredient amount of using in every mu.
5. the mechanism of action of above-mentioned weed killer herbicide management of weeds is: by use medicament in water layer, the paddy field broad leaved weed absorbs dead by the cauline leaf contact, and paddy rice is unaffected.
6. in the above-mentioned weed killer herbicide using method, dispenser is characterised in that period: after the transplant field rice transplanting after 5 days to late tillering state, the live 4 leaf phases of water in field rice are to late tillering state.And can repeatedly use repeatedly.
7. the moisture capacity in paddy field influences herbicidal effect.The dispenser phase will keep water layer, and the water conservation phase, long more herbicidal effect was good more, and the water leaking paddy field will increase access times.
8. this type of weed killer herbicide can be mixed to use to enlarge and kill the grass spectrum with other herbicide for paddy field.
Embodiment
The present invention is further described below in conjunction with embodiment.
Embodiment 1
21.4% acifluorfen aqua 100ml/ mu sand cutting forms medicine sand, and the 5 leaf phases of paddy rice evenly raise medicine sand in the water layer of paddy field, the field water conservation, and " Invest, Then Investigate " reached more than 98% broadleaved herb angustifolia arrowhead herb, rhizoma alismatis preventive effect in 15 days, to rice safety.
Embodiment 2
10% fluoroglycofen-ethyl granule 150g/ mu is converted water 15L and is evenly imposed in the paddy rice water layer in the ranks in the 5 leaf phases of paddy rice, and field water conservation, 15 days " Invest, Then Investigate "s are to broadleaved herb angustifolia arrowhead herb, rhizoma alismatis preventive effect more than 98%, to rice safety.
Embodiment 3
400/ mu of 5% acifluorfen effervescent tablet evenly selects multiple spot to spread fertilizer over the fields at the rice field water layer, and field water conservation, 15 days " Invest, Then Investigate "s are to broadleaved herb angustifolia arrowhead herb, rhizoma alismatis preventive effect more than 98%, and be dangerous to paddy rice.
Embodiment 4
5% fluoroglycofen-ethyl water dispersible granules, 300 gram/mus adopt multiple spot evenly to spread fertilizer over the fields in paddy field, and field water conservation, 15 days " Invest, Then Investigate "s are to broadleaved herb angustifolia arrowhead herb, rhizoma alismatis preventive effect more than 98%, to rice safety.
Embodiment 5
21.4% acifluorfen wetting powder, 100 gram/mus are mixed thoroughly with 8 kilograms of urea, evenly spread fertilizer over the fields in water layer, and field range estimation effect broadleaved herb angustifolia arrowhead herb, rhizoma alismatis preventive effect are more than 98%, to rice safety.
Embodiment 6
5% fluoroglycofen-ethyl water dispersible granules, 300 gram/mus adopt multiple spot evenly to spread fertilizer over the fields in paddy field, and used once in 10 days at every interval, use continuously 3 times, and field water conservation, 7 days " Invest, Then Investigate "s are to broadleaved herb angustifolia arrowhead herb, rhizoma alismatis preventive effect more than 99%, to rice safety.
Embodiment 7
5% acifluorfen effervescent tablet restrains mu with 2% pyrazosulfuron effervescent tablet 100 for 400/ mu and mixes, and evenly spreads fertilizer over the fields in paddy field with multiple spot, and field range estimation effect broadleaved herb angustifolia arrowhead herb, rhizoma alismatis preventive effect are more than 98%, to rice safety.
Therefore diphenyl ether cauline leaf treatment application in paddy rice when not contacting rice leaf, good to the broadleaved herb preventive effect, to rice safety.Make it industrialization in order to make this class weed killer herbicide be applied to the paddy field, but can make the fabulous granule dispersible granule of diffusion, effervescent tablet, medicine fertilizer etc. to this type of weed killer herbicide.Weed killer herbicide is dispersed in the water layer in paddy field.

Claims (4)

1. a class paddy field new herbicides is meant that specifically the cauline leaf inorganic agent that contains in the diphenyl ether is that the dry land herbicide of active ingredient is applied to paddy field management of weeds and using method thereof.
2. weed killer herbicide according to claim 1 specifically is meant to comprise and contain one or more the pesticidal preparations of active ingredient of acifluorfen, lactofen, fluoroglycofen-ethyl, ethoxyfenethyl ethyl ester.
3. using method according to claim 1 specifically is meant not contact paddy rice, by directly spreading fertilizer over the fields, spreads fertilizer over the fields in water after mixing fertilizer, sand cutting, forms even pastille water layer, reaches the purpose of management of weeds.
4. pesticidal preparations according to claim 2 is characterized in that, it can be that to contain acifluorfen, lactofen, fluoroglycofen-ethyl, ethoxyfenethyl ethyl ester be single agent of active ingredient, also can enlarge with other active ingredient complex preparations and kill the grass spectrum.
CN2011100857764A 2011-04-07 2011-04-07 Novel herbicides for paddy field Pending CN102197812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011100857764A CN102197812A (en) 2011-04-07 2011-04-07 Novel herbicides for paddy field

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Application Number Priority Date Filing Date Title
CN2011100857764A CN102197812A (en) 2011-04-07 2011-04-07 Novel herbicides for paddy field

Publications (1)

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CN102197812A true CN102197812A (en) 2011-09-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103719110A (en) * 2013-12-12 2014-04-16 曹延明 Method for rice field weeding by using diphenyl ethers stem leaf treating agent

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1314785A (en) * 1998-07-16 2001-09-26 阿温提斯作物科学有限公司 Herbicides with substituted phenyl sulfonylureas for controlling weeds in rice field

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
CN1314785A (en) * 1998-07-16 2001-09-26 阿温提斯作物科学有限公司 Herbicides with substituted phenyl sulfonylureas for controlling weeds in rice field

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103719110A (en) * 2013-12-12 2014-04-16 曹延明 Method for rice field weeding by using diphenyl ethers stem leaf treating agent

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Application publication date: 20110928