CN103392724B - Use of cassava field herbicide composition in preventing and treating cyperus rotundus - Google Patents
Use of cassava field herbicide composition in preventing and treating cyperus rotundus Download PDFInfo
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- CN103392724B CN103392724B CN201310341020.0A CN201310341020A CN103392724B CN 103392724 B CN103392724 B CN 103392724B CN 201310341020 A CN201310341020 A CN 201310341020A CN 103392724 B CN103392724 B CN 103392724B
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Abstract
The invention provides an application of a cassava field herbicide composition for preventing and treating Cyperus rotundus, the cassava field herbicide composition is a ternary herbicide composition with active components of halosulfuron, oxyfluorfen, and an amide herbicide. The composition comprises the components of, by weight: 1-9% of halosulfuron, 2-16% of oxyfluorfen, 24-75% of the amide herbicide, 7-42% of a solvent, and 7-27% of an auxiliary agent. The amide herbicide is one of butachlor, propisochlor, and fine metolachlor. The herbicide composition provided by the invention has significant synergetic effect and wide herbicidal spectrum, and has significant soil enclosing effect against broad leaf weeds, grass weeds, and cperaceae weeds. Especially, a soil enclosing effect against cyperi rhizome is significant. The composition has low harm to cassava, low toxicity, and low residue. With one-time dosage, weed harm of an entire duration period can be controlled.
Description
Technical field
The present invention relates to technical field of pesticide, particularly a kind of cassava field herbicide composition is for preventing and treating the purposes of the rhizome of nutgrass flatsedge.
Background technology
Cassava is one of first-selected crop producing alcohol fuel.The long-term cultivated area of current China cassava about 450,000 hectares, gross yield about 7,000,000 tons, in recent years, along with popularizing of ethanol petrol, the demand of cassava constantly increases, and cultivated area also constantly expands.Crop smothering is one of key factor affecting cassava production.Cassava field weeds occur early, quantity is large, and harm is heavy, and artificial weeding is cassava field weed control important means, but artificial weeding is time-consuming, weak effect; Chemical weed control has the advantages such as efficient abridged edition, is one of modern agriculture requisite measure.Domestic at present also do not have cassava herbicides special kind, only has a small amount of cassava field weed killer herbicide patented product, as mesotrione, haloxyfop-r-methyl, efficient fluazifop and sulfometuronmethyl etc.Sulfometuronmethyl belongs to steriland herbicide, and the longevity of residure is long, is mainly used in forest land or uncultivated area weeding, has been prohibited to register to use in field crop and ornamental plants; Haloxyfop-r-methyl and efficient fluazifop belong to cauline leaf inorganic agent after seedling, good to grassy weed preventive effect, to broad leaved weed and the anti-heterodyne of sedge weed; Mesotrione also belongs to cauline leaf inorganic agent after seedling, has favorable effect to annual broadleaf weed and part grassy weed, and the preventive effect ability extreme difference to sedge weed.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of cassava field herbicide composition being active ingredient with halosulfuronmethyl, Oxyfluorfen and acetamide-group herbicides, said composition broad weed-killing spectrum, significant soil sealing effect is all had to broad leaved weed, grassy weed and sedge weed, particularly remarkable to rhizome of nutgrass flatsedge soil sealing effect, low to cassava poisoning, low toxicity, low-residual, a drug can control cassava Weed infestation whole breeding time.
For solving the problem, the present invention is achieved by the following technical solutions:
A kind of cassava field herbicide composition is for preventing and treating the purposes of the rhizome of nutgrass flatsedge, described cassava field herbicide composition comprises following component by weight percentage: the halosulfuronmethyl of 1% ~ 9%, the Oxyfluorfen of 2% ~ 16%, 24% ~ 75% acetamide-group herbicides, described cassava field herbicide composition be mainly used in prevent and treat the rhizome of nutgrass flatsedge.
Preferably, described cassava field herbicide composition, also comprises following component by weight percentage: the amount of solvent is 7% ~ 42%, the amount 7% ~ 27% of auxiliary agent.
Preferably, described acetamide-group herbicides are the one in butachlor, propisochlor, S-metolachlor.
Preferably, described solvent comprises: acetone, methyl alcohol, benzene, toluene, soybean oil, oleic acid formicester, 150
#one in solvent naphtha or any several combination.
Preferably, described auxiliary agent comprises: emulsifier and surfactant.
Preferably, described surfactant includes any 2 ~ 4 kinds in organic silicon surface active agent, styrylphenol base APEO, fatty alcohol-polyoxyethylene ether, polyoxyethylene nonylphenol ether, castor oil polyoxyethyl ether, calcium dodecyl benzene sulfonate, sodium lignin sulfonate.
Preferably, described cassava field herbicide composition, comprises following component by weight percentage: halosulfuronmethyl 1% ~ 7%, Oxyfluorfen 2% ~ 12%, the solvent of butachlor 24% ~ 51%, 18% ~ 42%, the auxiliary agent of 16% ~ 17%.
Preferably, described cassava field herbicide composition, comprises following component by weight percentage: halosulfuronmethyl 2% ~ 7%, Oxyfluorfen 3% ~ 13%, the solvent of propisochlor 25% ~ 60%, 7% ~ 34%, the auxiliary agent of 22% ~ 27%.
Preferably: described cassava field herbicide composition, comprise following component by weight percentage: halosulfuronmethyl 2% ~ 8%, Oxyfluorfen 4% ~ 15%, the solvent of S-metolachlor 27% ~ 75%, 10% ~ 38%, the auxiliary agent of 7% ~ 15%.
Beneficial effect of the present invention:
(1) herbicide spectrum is expanded.The present invention adopts halosulfuronmethyl, Oxyfluorfen and acetamide-group herbicides ternary built medicament, compare with acetamide-group herbicides binary mixture with Oxyfluorfen, ternary built medicament broad weed-killing spectrum, especially remarkable to cassava field malignant weed rhizome of nutgrass flatsedge soil sealing effect.
(2) synergistic effect.Lot of experiments proves, halosulfuronmethyl and Oxyfluorfen and the composite use of acetamide-group herbicides, the preventive effect to broad leaved weed, grassy weed, sedge weed can be improved, extend soil off-period, herbicidal efficacy doubles, a drug can control cassava Weed infestation whole breeding time, improves operating efficiency, reduces costs.Herbicidal composition of the present invention is light to cassava poisoning, and in cassava, be converted into non-poisonous material very soon, safety is high.
Embodiment
Further describe the present invention referring to embodiment, to make those skilled in the art can implement according to this with reference to specification word, scope is not limited by embodiments of the present invention.
Former for the halosulfuronmethyl measured medicine, the former medicine of Oxyfluorfen and the former medicine of acetamide-group herbicides are mixed by different proportion, add in the solvent be made up of methyl alcohol and benzene and dissolve, then add and mix by emulsifier and the surfactant be made up of styrylphenol base APEO, fatty alcohol-polyoxyethylene ether the auxiliary agent made, by active ingredient part by weight, be mixed with following 27 different herbicidal compositions.
Embodiment 1: weed killer herbicide indoor security and to rhizome of nutgrass flatsedge toxicity test
Plant in diameter 20cm, high 18cm culture plate together with the subterranean stem of the rhizome of nutgrass flatsedge by long for the stem in the same size cassava stem for 15cm, cassava is often coiled and puts 2 stem blocks, and the rhizome of nutgrass flatsedge often coils plantation 30 subterranean stems.Then adopt soil spray-on process spraying herbicide, carry out spraying process with metered dose tower, spouting liquid calculates by 675 kg/ha.Process is placed in greenhouse and cultivates.After medicine, 40d investigates and calculates cassava plant height inhibiting rate and rhizome of nutgrass flatsedge preventive effect.
This experiment is divided into experimental group and control group.Experiment component is three groups to carry out:
(1) composition 5, consumption is 1688.89mg/kg;
(2) composition 14, consumption is 1688.89mg/kg;
(3) composition 23, consumption is 1635.56mg/kg.
Check experiment is divided into 12 groups to carry out, and is used alone halosulfuronmethyl, and consumption is 16.67mg/kg; Be used alone halosulfuronmethyl, consumption is 33.33mg/kg; Be used alone halosulfuronmethyl, consumption is 66.67mg/kg; Be used alone halosulfuronmethyl, consumption is 133.33mg/kg; Be used alone halosulfuronmethyl, consumption is 266.67mg/kg; Be used alone Oxyfluorfen, consumption is 222.22mg/kg; Be used alone butachlor, consumption is 1333.33mg/kg; Be used alone propisochlor, consumption is 1333.33mg/kg; Be used alone S-metolachlor, consumption is 1280.0mg/kg; Use Oxyfluorfen+butachlor composition, consumption is 222.22mg/kg+1333.33mg/kg; Use the composition of Oxyfluorfen+propisochlor, consumption is 222.22mg/kg+1333.33mg/kg; Use Oxyfluorfen+S-metolachlor composition, consumption is 222.22mg/kg+1280.0mg/kg, often organizes and does battery of tests.
Different agents is to rhizome of nutgrass flatsedge indoor virulence and cassava safety testing result
As can be seen from the table, have much relations to the control efficiency of the rhizome of nutgrass flatsedge and the usage amount of medicament when being used alone halosulfuronmethyl, medicament usage amount is larger, and preventive effect is strong; Be used alone Oxyfluorfen, propisochlor, butachlor and S-metolachlor to the anti-heterodyne of the rhizome of nutgrass flatsedge; Use binary built medicament: Oxyfluorfen+butachlor, Oxyfluorfen+propisochlor, Oxyfluorfen+S-metolachlor are also poor to rhizome of nutgrass flatsedge preventive effect; Use halosulfuronmethyl, Oxyfluorfen and acetamide-group herbicides ternary built medicament: composition 5, composition 14 and composition 23 pairs of rhizome of nutgrass flatsedge soil sealing effects are good, preventive effect Be very effective, after medicine 40 days, more than 97% is reached to rhizome of nutgrass flatsedge soil sealing effect, and to cassava plant height inhibiting rate all lower than 5%, high to cassava safety.
Embodiment 2: weed killer herbicide is to land for growing field crops drug effect and Security test
Latter 3 days of cassava plantation, in cassava and weeds budding period.Use different weed killer herbicide or combinations of herbicides to carry out even spraying, often process 4 and repeat, the plot area of each repetition is 30 ㎡.After medicine, 40d investigates and adds up all kinds of Weed-control effect.After medicine, whether 10,20,30,40 days range estimation investigation cassavas have poisoning, record symptom of chemical damage, grade and recovery situation.
This experiment is divided into experimental group and control group, experiment component is 27 groups to carry out: with Oxyfluorfen+Acetochlor+halosulfuronmethyl, Oxyfluorfen+butachlor+halosulfuronmethyl, Oxyfluorfen+S-metolachlor+halosulfuronmethyl ternary recompounded composite, per hectare respectively carries out nine groups of experiments respectively by different dosages.
Control experiment is divided into five groups to carry out: respectively do one group of experiment by halosulfuronmethyl, Oxyfluorfen, Acetochlor, butachlor, S-metolachlor per hectare by different dosages separately.
Poisoning grade scale: 1 grade: cassava growth is normal, without any damage symptoms; 2 grades: the slight poisoning of cassava, poisoning rate is less than 10%; 3 grades: the medium poisoning of cassava, can recover later, not affect output; 4 grades: cassava poisoning is heavier, be difficult to recover, cause the underproduction; 5 grades: cassava poisoning is serious, can not recover, cause the obvious underproduction or total crop failure amount.
Analysis of experimental data
Different agents is to cassava field weeds land for growing field crops drug effect and safety testing result
As can be seen from the table, halosulfuronmethyl, Oxyfluorfen and acetamide-group herbicides belong to the weed killer herbicide of the different mechanism of action, halosulfuronmethyl is better than the preventive effect to grassy weed and broad leaved weed to rhizome of nutgrass flatsedge preventive effect, the preventive effect of Oxyfluorfen to broad leaved weed is better than the rhizome of nutgrass flatsedge and grassy weed and preventive effect, grassy weed is better than the preventive effect to the rhizome of nutgrass flatsedge and broadleaved herb to grassy weed preventive effect, three is composite to grassy weed, broad leaved weed and the rhizome of nutgrass flatsedge all have good preventive effect, there is the effect of synergy and expansion herbicide spectrum, ternary mixture has slight inhibitory action to cassava early growth, but poisoning rate is all less than 10%, non-poisonous material is converted into very soon in cassava, safety is high.
In sum, halosulfuronmethyl, Oxyfluorfen and acetamide-group herbicides carry out ternary built mixture broad weed-killing spectrum, significant soil sealing effect is all had to broad leaved weed, grassy weed and sedge weed, particularly remarkable to rhizome of nutgrass flatsedge soil sealing effect, low to cassava poisoning, low toxicity, low-residual, a drug can control cassava Weed infestation whole breeding time, has the distinguishing features such as safety, efficient, abridged edition.
Claims (6)
1. a cassava field herbicide composition is for preventing and treating the purposes of the rhizome of nutgrass flatsedge, it is characterized in that, described cassava field herbicide composition comprises following component by weight percentage: halosulfuronmethyl 1% ~ 7%, Oxyfluorfen 2% ~ 12%, described in the solvent of butachlor 24% ~ 51%, 18% ~ 42%, the auxiliary agent of 16% ~ 17%, cassava field herbicide composition is for preventing and treating the rhizome of nutgrass flatsedge.
2. a cassava field herbicide composition is for preventing and treating the purposes of the rhizome of nutgrass flatsedge, it is characterized in that, described cassava field herbicide composition comprises following component by weight percentage: halosulfuronmethyl 2% ~ 7%, Oxyfluorfen 3% ~ 13%, the solvent of propisochlor 25% ~ 60%, 7% ~ 34%, the auxiliary agent of 22% ~ 27%, described cassava field herbicide composition is for preventing and treating the rhizome of nutgrass flatsedge.
3. a cassava field herbicide composition is for preventing and treating the purposes of the rhizome of nutgrass flatsedge, it is characterized in that, described cassava field herbicide composition comprises following component by weight percentage: halosulfuronmethyl 2% ~ 8%, Oxyfluorfen 4% ~ 15%, the solvent of S-metolachlor 27% ~ 75%, 10% ~ 38%, the auxiliary agent of 7% ~ 15%, described cassava field herbicide composition is for preventing and treating the rhizome of nutgrass flatsedge.
4. the cassava field herbicide composition according to any one of claims 1 to 3, for preventing and treating the purposes of the rhizome of nutgrass flatsedge, is characterized in that: described solvent comprises acetone, methyl alcohol, benzene, toluene, soybean oil, oleic acid formicester, 150
#one in solvent naphtha or any several combination.
5. the cassava field herbicide composition according to any one of claims 1 to 3, for preventing and treating the purposes of the rhizome of nutgrass flatsedge, is characterized in that: described auxiliary agent comprises emulsifier and surfactant.
6. cassava field herbicide composition according to claim 5 is for preventing and treating the purposes of the rhizome of nutgrass flatsedge, it is characterized in that: described surfactant includes any 2 ~ 4 kinds in organic silicon surface active agent, styrylphenol base APEO, fatty alcohol-polyoxyethylene ether, polyoxyethylene nonylphenol ether, castor oil polyoxyethyl ether, calcium dodecyl benzene sulfonate, sodium lignin sulfonate.
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| WO2016079035A1 (en) | 2014-11-18 | 2016-05-26 | Bayer Cropscience Aktiengesellschaft | Use of certain herbicide combinations in tuberous root crop plants |
| BR112017023248A2 (en) | 2015-04-27 | 2018-08-07 | Bayer Cropscience Ag | use of certain herbicide combinations in tuberous root plants. |
| BR112017023244A2 (en) * | 2015-04-27 | 2018-08-07 | Bayer Cropscience Ag | use of certain herbicide combinations in tuberous root plants. |
| CN104872163A (en) * | 2015-06-17 | 2015-09-02 | 广东中迅农科股份有限公司 | Weeding composition including penoxsulam, halosulfuron-methyl and oxyfluorfen |
| WO2017050635A1 (en) | 2015-09-22 | 2017-03-30 | Bayer Cropscience Aktiengesellschaft | Use of certain active ingredient combinations in tuberous root crop plants |
| AR120114A1 (en) * | 2019-10-01 | 2022-02-02 | Upl Corporation Ltd | HERBICIDE COMPOSITION |
| CN111820216A (en) * | 2020-07-30 | 2020-10-27 | 海南大学 | Application of cassava field herbicide composition in prevention and treatment of cyperus rotundus |
| CN112471143A (en) * | 2020-11-30 | 2021-03-12 | 上虞颖泰精细化工有限公司 | Microcapsule suspending agent of oxyfluorfen and metolachlor and preparation method thereof |
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| CA2340241C (en) * | 1998-08-13 | 2011-10-04 | Aventis Cropscience Gmbh | Herbicidal compositions with acylated aminophenylsulfonylureas |
| ES2200595T3 (en) * | 1998-11-10 | 2004-03-01 | Syngenta Participations Ag | HERBICIDE COMPOSITION. |
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