CN102792950B - Herbicide composition including metamifop and oxadiazon - Google Patents
Herbicide composition including metamifop and oxadiazon Download PDFInfo
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- CN102792950B CN102792950B CN201110133022.1A CN201110133022A CN102792950B CN 102792950 B CN102792950 B CN 102792950B CN 201110133022 A CN201110133022 A CN 201110133022A CN 102792950 B CN102792950 B CN 102792950B
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Abstract
The invention relates to the technical field of pesticides, and discloses a rice mixed herbicide. The herbicide comprises two active ingredients of metamifop and oxadiazon, wherein the weight ratio of the two active ingredients is 1:50-3.5:1; and the mass percentage of the two active ingredients is 1-90% of the mixed herbicide. By mixing the two active ingredients of metamifop and oxadiazon, complementarity of each ingredient for eradicating weeds is increased and shortages when each ingredient is used alone are supplemented. The herbicide can not only prevent and eradicate annual gramineae weeds in rice fields, but also can prevent and eradicate broadleaf weeds and cyperaceae weeds, and has significant synergistic effects. The herbicide composition has not only obvious effects for eradicating weeds but also good security for the rice, has no influence on subsequent crops, and is an ideal herbicide.
Description
[technical field]
The invention belongs to agriculture plant protection field, relate to a kind of herbicidal composition that improves performance that has, relate in particular to the Weeding synergetic composition of a kind of Han You oxazole acyl grass amine and two kinds of active components of oxadiazon.
[background technology]
Paddy rice is not only the topmost cereal crops of China, one of Ye Shi world staple food crop.Nearly half population in the world, comprises the almost population in whole East Asia and Southeast Asia, all take rice as food, produces the each continent spreading all over except the South Pole.Eighties of last century late period, 4,000 hundred million kilograms of left and right of View of World Rice annual production average out to, approximately 1.45 hundred million hectares of cultivated areas.China's Monitoring of Paddy Rice Plant Area accounts for 1/4 of national cereal crops, and about more than 3,500 ten thousand hectares, output accounts for over half every year.No matter cultivated area and output all ranks first in China cereal crops.The rice field of all rice workspaces of China, always has a large amount of weeds to occur, and medium crop smothering area accounts for the more than 46% of total cultivated area, and wherein serious injured area is more than 11.5%.Therefore, extremely urgent for the demand of herbicide wide spectrum, selectivity herbicide for paddy field kind strong, easy to use aborning.
Oxazole acyl grass amine is fragrant phenoxy esters of gallic acid (AOPP) weed killer herbicide, it is as a kind of acetyl-CoA carboxylase (ACCase) inhibitor, can prevent and kill off admirably most of annual gramineous weeds, different from most of AOPP class weed killer herbicides is oxazole acyl grass amine, to rice safety, can effectively be prevented and kill off paddy field main weeds; Oxadiazon is proporphyrinogen oxidase inhibitor, and after cauline leaf is processed, weeds absorb by acrial part, and medicament is accumulated in the vigorous position of growth after entering plant corpus, under the condition of illumination, suppresses growth, finally makes weeds organize perish.
Oxazole acyl grass amine can effectively be prevented and kill off grassy weed, but to broad leaved weed and the anti-heterodyne of sedge weed, field exists again grass family, broad-leaved and sedge weed simultaneously, so, in order to make up the deficiency of single dose, need carry out composite to single dose weed killer herbicide.By experiment, select broad-leaved and the good oxadiazon of sedge weed preventive effect with oxazole acyl grass amine carries out compositely, so both can improve preventive effect, can facilitate again peasant to use, reduce costs.
[summary of the invention]
Technical problem to be solved by this invention is, a kind of killing weeds in rice field herbicidal composition is provided, and between each composition, without antagonism, can prevent and kill off grassy weed and can prevent and kill off again broad leaved weed and sedge weed, and cost is low, easy to use, to rice safety.
For solving the problems of the technologies described above, the present invention has adopted following scheme: a kind of herbicidal composition, two kinds of active components of a that comprises effective dose and b.Wherein, a Wei oxazole acyl grass amine (Metamifop), chemical name is the chloro-2-Ben of (2R)-2-[4-[(6-oxazolyl)] phenoxy group]-N-(2-fluorobenzene)-N-methyl propanamide, structural formula is:
B is oxadiazon (Oxadiazon), other titles: agriculture think it, Lonster, chemical name is 5-tertiary butyl-3-(the chloro-5-o-phenyl-isopropyl of 2,4-bis-)-1,3,4-oxadiazole-2 (3H)-one, structural formula is:
Described activity of herbicidal compositions composition a and b weight ratio Wei oxazole acyl grass amine: oxadiazon=1: 50～3.5: 1, be preferably 1: 25～1.7: 1, be more preferably 1: 4; The weight percentage of two active components in herbicidal composition is that 1～90% surplus is one or more in acceptable insecticides adjuvant in the agriculturals such as carrier, solvent, emulsifier, wetting agent, dispersant, thickener, defoamer, antifreezing agent.
Described herbicidal composition can, by conventional at present pesticide producing mode, be prepared into multi-form operational corresponding formulation, and herbicidal composition most preferred dosage form of the present invention is missible oil.
In described insecticides adjuvant, carrier can be one or more in white carbon, kaolin, diatomite, bentonite, precipitated calcium carbonate, gypsum, attapulgite, soluble starch, urea, amine fertilizer, glucose, maltose, sucrose, citric acid, natrium carbonicum calcinatum, Carbon Dioxide hydrogen potassium, anhydrous sodium sulfate, anhydrous sodium bicarbonate, Anhydrous potassium carbonate, or other this area common carrier.
In described insecticides adjuvant, solvent can be one or more in water, benzene,toluene,xylene, methyl alcohol, ethanol, isopropyl alcohol, butanols, cyclohexanone, cyclohexanol, oxolane, tetrahydrofurfuryl alcohol, carrene, chloroform, dimethyl formamide, dioxane, 1-METHYLPYRROLIDONE, ethyl acetate, acetone, butanone, ether, epoxidized soybean oil, plant soybean oil, liquid wax, lubricating oil.
In described insecticides adjuvant, emulsifier can be phenethyl phenol polyethenoxy polyethenoxy ether, styryl fluosite PULLRONIC F68 block type polyethers, aliphatic acid polyethenoxy ether, dibenzyl xenyl APEO, glyceryl monolaurate APEO, styrylphenol polyoxyethylene ether, ethoxy castor oil APEO, alkyl phenol polyoxyethylene polyoxypropylene ether, secondary octyl phenol polyethenoxy ether, polyoxyethylene nonylphenol ether, aliphatic alcohol polyoxyethylene sulfonate, polyoxyethylene alkylphenol formaldehyde condensation products, dodecyl sodium sulfonate calcium, decyl alcohol polyoxyethylene ether sulfosuccinic acid sodium, alkylphenol polyoxyethylene succinate monoester sulfonate, alkylphenol-polyethenoxy phosphate, alkylphenol polyoxyethylene sulfosuccinates, one or more in fatty acid polyethylene glycol ester.
In described insecticides adjuvant, dispersant can be one or more in alkylnaphthalene sulfonate, polycarboxylate, sodium lignin sulfonate, sodium metnylene bis-naphthalene sulfonate, calcium lignosulfonate, Sodium Polyacrylate, alkyl naphthalene sulfonic acid condensation polymer sodium salt, sodium methylene bis-naphthalene sulfonate formaldehyde condensation products.
In described insecticides adjuvant, wetting agent is selected from one or more in Negel, lauryl sodium sulfate, Teepol, neopelex, fatty alcohol polyglycol ether sulphate, fatty alcohol-polyoxyethylene ether, polyoxyethylene nonylphenol ether, sorbitan fatty acid ester APEO, Fluhyzon formaldehyde condensation products, alkylnaphthalene sulfonate.
Thickener in described insecticides adjuvant can be xanthans, polyvinyl alcohol, sodium alginate, diatomite, starch, kaolin or organobentonite etc., can also be other conventional thickeners of this area.
Antifreezing agent in described insecticides adjuvant can be propane diols, ethylene glycol, glycerine or urea etc., can also be other conventional antifreezing agents of this area.
In described insecticides adjuvant, defoamer is tributyl phosphate or silicone etc., can also be other conventional defoamers of this area.
Herbicidal combinations of the present invention is mainly used in management of weeds in rice field, as barnyard grass, moleplant seed, lady's-grass, eleusine indica, difformed galingale herb, black nightshade, Siberian cocklebur, field bindweed, Monochoria vaginalis, Commeline communis, needle spikesedge herb, firefly Lin, short arrowhead, rhizoma alismatis, Eclipta prostrata, Monochoria korsakowii, miliary fimbristylis herb etc., but be not limited to above-mentioned weeds.
The present invention possesses following beneficial effect:
Composition pesticide provided by the invention shows obvious synergistic effect in certain ratio range, and the herbicidal effect of composition is significantly improved than single dose.Reduced pesticide cost and the adverse effect to ecotope, it applies huge Social benefit and economic benefit.
This herbicidal composition adopts oxadiazon Yu oxazole acyl grass amine mixture is used, this two components mechanism of action difference, so there is wider herbicide spectrum and more excellent synergy control efficiency, oxadiazon makes up oxazole acyl grass amine to broad leaved weed, shortcoming that sedge weed preventive effect is low, only need a drug just can effectively prevent and kill off rice field broad leaved weed, grassy weed and sedge weed, when use to paddy growth safety, also can delay or overcome the drug-fast generation of rice weed, be conducive to agricultural synthesis and administer.
[embodiment]
The paddy rice complex weedicide that the invention discloses a kind of Bao Han oxazole acyl grass amine and two kinds of active components of oxadiazon, those skilled in the art can use for reference content herein, suitably improve technological parameter and realize.Special needs to be pointed out is, all similar replacements and change apparent to those skilled in the artly, they are all deemed to be included in the present invention.Product of the present invention and application are described by preferred embodiment, related personnel obviously can change methods and applications as herein described in content of the present invention, spirit and scope or suitably change and combination not departing from, and realizes and apply the technology of the present invention.
FORMULATION EXAMPLE 1: wetting powder
Prepare 60% oxazole acyl grass amine oxadiazon wetting powder, take respectively active ingredient and auxiliary element by following proportioning, premenstrual mixing, air-flow crushing, rear mixing, obtain described wetting powder.
FORMULATION EXAMPLE 2: wetting powder
Prepare 35% oxazole acyl grass amine oxadiazon wetting powder, take respectively active ingredient and auxiliary element by following proportioning, premenstrual mixing, air-flow crushing, rear mixing, obtain described wetting powder.
FORMULATION EXAMPLE 3: missible oil
Prepare 55% oxazole acyl grass amine oxadiazon missible oil, take respectively active ingredient and auxiliary element mixed dissolution by following proportioning, make it become even oil phase to get final product to obtain described missible oil.
FORMULATION EXAMPLE 4: missible oil
Prepare 15% oxazole acyl grass amine oxadiazon missible oil, take respectively active ingredient and auxiliary element mixed dissolution by following proportioning, make it become even oil phase to get final product to obtain described missible oil.
FORMULATION EXAMPLE 5: aqueous emulsion
Prepare 10% oxazole acyl grass amine oxadiazon aqueous emulsion, take respectively active ingredient and auxiliary element by following proportioning, mix and be made into homogeneous oil phase, water, antifreeze are mixed and be made into homogeneous water, under the stirring of high-speed shearing machine, oil phase is poured into and in water, got final product to obtain described aqueous emulsion.
FORMULATION EXAMPLE 6: aqueous emulsion
Prepare 10% oxazole acyl grass amine oxadiazon aqueous emulsion, take respectively active ingredient and auxiliary element by following proportioning, mix and be made into homogeneous oil phase, water, antifreeze are mixed and be made into homogeneous water, under the stirring of high-speed shearing machine, oil phase is poured into and in water, got final product to obtain described aqueous emulsion.
The raw embodiment that surveys:
Killing weeds in rice field field control effectiveness test I:
1, test is processed
(1) 15% oxazole acyl grass amine oxadiazon missible oil (1: 50) 160g/ mu
(2) 15% oxazole acyl grass amine oxadiazon missible oil (1: 35) 160g/ mus
(3) 15% oxazole acyl grass amine oxadiazon missible oil (2: 15) 160g/ mus
(4) 15% oxazole acyl grass amine oxadiazon missible oil (1: 4) 160g/ mus
(5) 15% oxazole acyl grass amine oxadiazon missible oil (3: 5) 160g/ mus
(6) 15% oxazole acyl grass amine oxadiazon missible oil (3.5: 1) 160g/ mus
(7) 10% oxazole acyl grass amine missible oil 240g/ mus
(8) 12% oxadiazon missible oil 200g/ mus
8 processing are established in test, repeat for 4 times, process community for totally 32,20 square metres of every processing community areas, and random district group is arranged.(1)～(6) oxazole acyl grass amine oxadiazon missible oil (Shandong Binnong Technology Co., Ltd.'s production) are reagent agent, and 10% oxazole acyl grass amine missible oil and 12% oxadiazon missible oil are contrast medicament.Every mu is watered 30 kilograms, adopts 552 third type sprayers (0.7mm aperture) even spraying.Field main weeds has barnyard grass, moleplant seed, lady's-grass, Monochoria vaginalis, Procumbent Falsepimpernel, angustifolia arrowhead herb etc.
2, pilot project and method
(1) safety: after dispenser, the situation of growing of investigation paddy rice, evaluates the safety of reagent agent to paddy rice.
(2) herbicidal effect: every community is got 4 points at random, investigates 1/4 square metre at every, and after dispenser, 30 days investigation weed control efficacies, record respectively weeds kind and strain number, calculate weeds strain preventive effect.
(3) result of the test
Safety: dispenser " Invest, Then Investigate ", chemicals treatment district rice plant height, Ye Se and blank district are basically identical, show that reagent agent (1)～(6) oxazole acyl grass amine oxadiazon missible oil is all to rice safety.
Herbicidal effect: see Table I.
30 days various weed control efficacies after Table I medicine
Note: (1) 15% oxazole acyl grass amine oxadiazon missible oil (1: 50) (2) 15% oxazole acyl grass amine oxadiazon missible oil (1: 35)
(3) 15% oxazole acyl grass amine oxadiazon missible oil (2: 15) (4) 15% oxazole acyl grass amine oxadiazon missible oil (1: 4)
(5) 15% oxazole acyl grass amine oxadiazon missible oil (3: 5) (6) 15% oxazole acyl grass amine oxadiazon missible oil (3.5: 1)
(7) 10% oxazole acyl grass amine missible oil (8) 12% oxadiazon missible oil
From Table I, different proportioning oxazole acyl grass amine oxadiazons to common weed strain preventive effect between 68.25～96.68%, all be better than contrasting Qi Zhong oxazole acyl grass amine of medicament 10% oxazole acyl grass amine missible oil and 12% oxadiazon missible oil (weeds strain preventive effect is respectively 57.02% and 64.63%) and oxadiazon weight ratio and be 2: 15 and 3: 5 all remarkable to rice field common weed preventive effect, weeds strain preventive effect is all at 85% above ， Er oxazole acyl grass amine: oxadiazon=1: preventive effect was especially up to more than 96% in 4 o'clock.Illustrate that thus oxazole acyl grass amine and oxadiazon weight ratio are in 1: 50～3.5: 1 scopes, the common grass family in rice field, broad-leaved and sedge weed are had to preventive effect, lasting period is greater than one month, substantially can control the rice field crop smothering in whole vegetative period, and this herbicidal composition is to rice safety.
Killing weeds in rice field field control effectiveness test II:
1, test is processed
(1) 5% oxazole acyl grass amine oxadiazon missible oil (1: 4) 480g/ mu
(2) 15% oxazole acyl grass amine oxadiazon missible oil (1: 4) 160g/ mus
(3) 50% oxazole acyl grass amine oxadiazon missible oil (1: 4) 48g/ mus
3 processing are established in test, repeat for 4 times, process community for totally 12,20 square metres of every processing community areas, and random district group is arranged.(1)～(3) oxazole acyl grass amine oxadiazon missible oil (Shandong Binnong Technology Co., Ltd.'s production) are reagent agent, and every mu is watered 30 kilograms, adopt 552 third type sprayers (0.7mm aperture) even spraying.Field main weeds has barnyard grass, moleplant seed, lady's-grass, Monochoria vaginalis, Procumbent Falsepimpernel, angustifolia arrowhead herb etc.
2, pilot project and method
Herbicidal effect: every community is got 4 points at random, investigates 1/4 square metre at every, and after dispenser, 30 days investigation weed control efficacies, record respectively weeds kind and strain number, calculate weeds strain preventive effect.
Herbicidal effect is shown in Table II.
30 days various weed control efficacies after Table II medicine
Note: (1) 5% oxazole acyl grass amine oxadiazon missible oil (1: 4) (2) 15% oxazole acyl grass amine oxadiazon missible oil (1: 4)
(3) 50% oxazole acyl grass amine oxadiazon missible oil (1: 4)
By known of Table II in the time that the weight ratio of oxazole acyl grass amine and oxadiazon is 1: 4, different content oxazole acyl grass amine oxadiazon missible oil is to common weed strain preventive effect all in the time that 90% above Biao Ming oxazole acyl grass amine and oxadiazon weight ratio are optimal proportion, and the herbicidal composition of different activities component content all has significant preventive effect to weeds.
The raw result of the test of surveying shows; after oxazole acyl grass amine and oxadiazon are composite, two active component ratios are between 1: 50～3.5: 1, weight percentage in herbicidal composition is in 1～90% scope, compared with single dose separately, preventive effect to weeds is significantly improved, and has reached the object of simultaneously preventing and kill off broad leaved weed, sedge weed and grassy weed.
Claims (2)
1. a herbicidal composition, is characterized in that, described composition is 15% oxazole acyl grass amine oxadiazon missible oil, takes respectively active ingredient and auxiliary element mixed dissolution by following proportioning, makes it become even oil phase to get final product to obtain described missible oil:
Raw material weight percentage consumption
Oxazole acyl grass amine 3
Oxadiazon 12
Polyoxyethylene nonylphenol ether 5
Fatty alcohol-polyoxyethylene ether 3
Dimethylbenzene complements to 100.
2. herbicidal composition according to claim 1, is characterized in that for preventing and kill off rice field broad leaved weed, sedge weed and grassy weed.
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Effective date of registration: 20211210 Address after: 256600 the northern side of Phoenix nine road, Wutong seven road, Binbei office, Binzhou, Shandong. Patentee after: SHANDONG ZHONGHE CHEMICAL Co.,Ltd. Address before: 256600 No. 518, Yongxin Road, Binbei office, Bincheng District, Binzhou City, Shandong Province Patentee before: SHANDONG BINNONG TECHNOLOGY Co.,Ltd. |
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