CN104106588A

CN104106588A - Wheat field herbicide composition

Info

Publication number: CN104106588A
Application number: CN201410122477.7A
Authority: CN
Inventors: 张天柱; 宋鹏; 王强; 王现全
Original assignee: Shandong Cynda Chemical Co Ltd
Current assignee: Shandong Cynda Chemical Co Ltd
Priority date: 2014-03-29
Filing date: 2014-03-29
Publication date: 2014-10-22

Abstract

The invention belongs to the technical field of pesticides, and especially discloses a wheat field herbicide composition. The wheat field composition comprises a component A and a component B according to a weight percentage ratio of 1-500:500-1, wherein the component A is 2,4-DB and its derivatives, and the component B is one or more of sulfonylurea, aryloxyphenoxypropionate, triazolopyrimidines, triazoline-ketones, pyrazoles and synthetic hormones. The composition has a wide weed control spectrum, can prevent and treat grassy weeds and broad leaf weeds, has a very good synergistic effect, has an obvious synergistic effect than single use of preparations, has a fast weeding speed and is highly safe to wheat.

Description

A kind of herbicide composition for wheat field

(1) technical field

The invention belongs to technical field of pesticide, particularly a kind of herbicide composition for wheat field.

(2) background technology

At present, weeds of wheat mainly contains broad leaved weed and grassy weed, along with the use of weed killer herbicide for many years, and the particularity of wheat paddock weeding in addition, resistant weed kind is more and more, region is increasing; With mixture of herbicides such as simple methoxone, fluroxypyrs, antagonism is broadcast ma wormwood artemisia and clearvers effect worse and worse, resistance wild oat, bromegrass with single gramineous herbicide as flucarbazone and clodinafop-propargyl effect worse and worse, and wheat paddock resistant weed occurs in field together with broad leaved weed mainly with grass family.

2,4-Embutox belongs to the growth hormone herbicide of phenoxy carboxylic acid, and it can prevent and kill off not the annual or perennial broadleaf weed of part effectively, also can effectively prevent and kill off various nutgrass flatsedges, but the poor activity to grassy weed.

The chemical structural formula of 2,4-Embutox is: .

At present at the report of wheat paddock application seldom, and the report of 2,4-Embutox and the common mixture of herbicides of wheat paddock still less for 2,4-Embutox.Inventor is by research, and 2,4-Embutox and derivative thereof are applied to wheat paddock, not only can prevent and treat various broad leaved weeds and nutgrass flatsedge, and very safe to wheat; Inventor is by further research discovery, 2, the mixture of herbicides such as 4-Embutox and derivative thereof and sulfonylurea, fragrant phenoxy phenoxy propionic acid, triazolo pyrimidine class, triazolineone, pyrazoles, artificial synthetic hormone class, not only expanded herbicide spectrum, can prevent grassy weed, broad leaved weed and nutgrass flatsedge in wheat paddock, and wheat paddock resistant weed is had to better activity of weeding as broadcast ma wormwood artemisia, clearvers, wild oat, bromegrass, there is obvious synergistic effect.

(3) summary of the invention

The present invention is in order to make up the deficiencies in the prior art, provides that a kind of herbicidal effect is good, quick-acting is high, the lasting period is long, the herbicide composition for wheat field of broad weed-killing spectrum.

The present invention is achieved through the following technical solutions:

A kind of herbicide composition for wheat field, it is characterized in that: comprise that percentage by weight is component A and the B component of 1-500:500-1, wherein, component A is 2,4-Embutox and derivative thereof, B component is one or more in sulfonylurea, fragrant phenoxy phenoxy propionic acid, triazolo pyrimidine class, triazolineone, pyrazoles, artificial synthetic hormone class.

More excellent technical scheme of the present invention is:

The percentage by weight of described component A and B component is 1-100:100-1, and more excellent percentage by weight is 1-20:20-1.

Also comprise component C, component C is one or more in fluorine pyrrole acyl grass amine, flufenacet, diflufenican.

Described 2,4-Embutox and derivative thereof are 2,4-Embutox, 2,4-Embutox sodium salt, 2,4-Embutox sylvite, 2,4-Embutox ammonium salt, 2,4-Embutox dimethylamine salt, 2,4-Embutox isopropyl ammonium salt, 2,4-Embutox methyl esters, 2,4-Embutox ethyl ester, 2, one or more in 4-Embutox butyl ester and the different monooctyl ester of 2,4-Embutox.

Described sulfonylurea is tribenuron-methyl, thifensulfuronmethyl, mesosulfuron or flucarbazone; Virtue phenoxy phenoxy propionic acid is alkynes oxalic acid, clodinafop-propargyl or fenoxapropPethyl; Triazolo pyrimidine class is florasulam; Triazolineone is azoles humulone; Pyrazoles is pyrrole grass ether; Artificial synthetic hormone class is dicamba, fluroxypyr or methoxone and derivative thereof; Amide-type comprises fluorine pyrrole acyl grass amine, flufenacet or diflufenican.

Described composition is wetting powder, missible oil, aqueous suspension agent, oil-suspending agent, microemulsion, aqueous emulsion or water dispersible granules, can be mixed with as required the upper any formulation allowing of agricultural, and comprise and collaboratively have the active of sales volume or what thing combination auxiliary agent required with at least one formulation to mix.

The present invention has herbicide spectrum widely, can prevent and treat grassy weed, broad leaved weed, plays good synergy, with single use preparation, have obvious synergistic effect, and herbicide speed is fast, and wheat is had to good safety.

(4) embodiment

Different pesticide active ingredient combinations is made to mixture, it is method current development novel pesticide and the upper resistant weed of control agricultural, the agricultural chemicals of different cultivars shows summation action, antagonism, synergistic effect after mixing conventionally, and its type of action needs a large amount of tests to examine or check.

The present invention is by a large amount of screening experiments, by to 2, one or more different proportionings in 4 Embutoxs and derivative thereof and sulfonylurea, fragrant phenoxy phenoxy propionic acid, triazolo pyrimidine class, triazolineone, pyrazoles, artificial synthetic hormone class weed killer herbicide have been carried out a large amount of tests of pesticide effectiveness and preventive effect analysis, found in certain ratio range, resulting herbicidal composition not only has the herbicide of expansion spectrum, and has obvious synergistic effect.

Below in conjunction with embodiment, the present invention is further described:

The wetting powder of example 1:52%

Active ingredient: flucarbazone 2%, 2,4-DB 50%;

Wetting agent: NNO 5%;

Dispersant: calcium lignosulfonate 5%;

Kaolin: surplus.

Example 2:21% aqueous suspension agent

Active ingredient: 2,4 Embutoxs 20%, florasulam 0.2%, flucarbazone 0.8%;

Dispersant: sodium lignin sulfonate 9%;

Thickener: xanthans 0.3%;

Water: surplus.

The wetting powder of example 3:51%

Active ingredient: tribenuron-methyl 1%, 2,4 Embutoxs 50%;

Wetting agent: NNO 11%;

Dispersant: sodium lignin sulfonate 9%;

Kaolin: surplus.

The wetting powder of example 4:57.5%

Active ingredient: clodinafop-propargyl 7.5%, 2,4 Embutoxs 50%;

Wetting agent: NNO 11%;

Dispersant: sodium lignin sulfonate 9%;

Kaolin: surplus.

Example 5:32.25% oil-suspending agent

Active ingredient: 2,4 Embutox sodium salts 30%, flucarbazone 1.5%, bensulfuron-methyl 0.75%;

Wetting agent: calcium dodecyl benzene sulfonate 11%;

Dispersant: sodium lignin sulfonate 9%;

Corn oil: surplus.

Example 6:31.5% oil-suspending agent

Active ingredient: 2,4 Embutox dimethylamine salts 30%, mesosulfuron 0.3%, azoles humulone 1.0%;

Wetting agent: sodium naphthalene sulfonate 11%;

Dispersant: sodium lignin sulfonate 9%;

Corn oil: surplus.

The fluorine pyrrole acyl grass amine of mesosulfuron+3.2% of 2,4 Embutox sodium salt+0.5% of example 7:50%

Formula 1:

Active ingredient: 2,4 Embutox sylvite 50%;

Wetting agent: OP-10 10%;

Water: surplus.

Formula 2:

Active ingredient: mesosulfuron 0.5%;

Dispersant: the basic sodium sulfonate 9% of dodecane;

Wetting agent: sodium lignin sulfonate 11%;

Corn oil: surplus.

Formula 3

Active ingredient: fluorine pyrrole acyl grass amine 3.2%;

Dispersant: wooden disulfonate acid 5%;

Water: surplus.

Above three each and every one fill a prescription, and bucket is mixed uses.

The wetting powder of example 8:55%

Active ingredient: send Roc herbicide sulfone 5%, 2,4 Embutox sodium salts 50%;

Wetting agent: NNO 10%;

Dispersant: sodium lignin sulfonate 8%;

Kaolin: surplus.

Select above example to prevent and treat the field control effectiveness test of weeds of wheat, to determine the effect of annual gramineous weed, broad leaved weed in formula control wheat paddock, simultaneously by with 2, in 4-Embutox and example, use the single dose of weed killer herbicide active ingredient compare, determine the synergistic effect after composite, be specifically implemented as follows:

Test site is Jinan City, Shandong Province, time is on November 21st, 2013, field corn is the 7-8 leaf phase, the weeds 3-4 leaf phase, test medicine all according to above-mentioned example be mixed with 30% 2, flucarbazone wetting powder, 0.5% mesosulfuron oil-suspending agent, 1% bensulfuron-methyl wetting powder, 2% azoles humulone missible oil, 7.5% clodinafop-propargyl missible oil, 3.2% fluorine pyrrole acyl grass amine aqueous suspension agent that 4-Embutox dispersibles oil-suspending agent and 2% contrast, test totally four processing, each processes three repetitions, community randomized arrangement, community area 100m ².Carry out the spraying of cauline leaf, after medicine, 15d and 30d observe respectively the strain preventive effect of each medicament, record the dispenser same day and the synoptic data of a week thereafter, specific as follows:

Duration of test meteorological data

What respondent was field broadcasts ma wormwood artemisia, clearvers, wild oat, bromegrass, and visual test medicament occurs without poisoning wheat.

Result of the test is as following table:

From above-mentioned data, can obviously find out, 2, 4 Embutoxs and derivative thereof and mesosulfuron, bensulfuron-methyl, flucarbazone, azoles humulone, after the multiple combination of florasulam is composite, each example is to clearvers, broadcast ma wormwood artemisia, bromegrass, the effect of wild oat all reaches more than 85%, with 2, 4 Embutoxs and mesosulfuron, bensulfuron-methyl, flucarbazone, azoles humulone, florasulam, send alone the comparing such as Roc herbicide sulfone (pyroxasulfone), there is obvious synergistic effect, the preventive effect of preparation 30d after composite is all improved than the preventive effect of 15d, illustrating that two components are composite has a lasting period well, and two component be mixed and made up the wideless shortcoming of alone herbicide spectrum, to broad leaved weed, grassy weed and nutgrass flatsedge all have preventive effect well, and in the concentration range of implementing in test, to wheat safety.

Claims

1. a herbicide composition for wheat field, it is characterized in that: comprise that percentage by weight is component A and the B component of 1-500:500-1, wherein, component A is 2,4-Embutox and derivative thereof, B component is one or more in sulfonylurea, fragrant phenoxy phenoxy propionic acid, triazolo pyrimidine class, triazolineone, pyrazoles, artificial synthetic hormone class.

2. herbicide composition for wheat field according to claim 1, is characterized in that: the percentage by weight of described component A and B component is 1-100:100-1.

3. herbicide composition for wheat field according to claim 1 and 2, is characterized in that: the percentage by weight of described component A and B component is 1-20:20-1.

4. herbicide composition for wheat field according to claim 1 and 2, is characterized in that: also comprise component C, component C is one or more in fluorine pyrrole acyl grass amine, flufenacet, diflufenican.

5. herbicide composition for wheat field according to claim 1 and 2, is characterized in that: described 2,4-Embutox and derivative thereof are 2,4-Embutox, 2,4-Embutox sodium salt, 2,4-Embutox sylvite, 2,4-Embutox ammonium salt, 2,4-Embutox dimethylamine salt, 2,4-Embutox isopropyl ammonium salt, 2,4-Embutox methyl esters, 2,4-Embutox ethyl ester, 2, one or more in 4-Embutox butyl ester and the different monooctyl ester of 2,4-Embutox.

6. herbicide composition for wheat field according to claim 1 and 2, is characterized in that: described sulfonylurea is tribenuron-methyl, thifensulfuronmethyl, mesosulfuron or flucarbazone; Virtue phenoxy phenoxy propionic acid is alkynes oxalic acid, clodinafop-propargyl or fenoxapropPethyl; Triazolo pyrimidine class is florasulam; Triazolineone is azoles humulone; Pyrazoles is pyrrole grass ether; Artificial synthetic hormone class is dicamba, fluroxypyr or methoxone and derivative thereof.

7. herbicide composition for wheat field according to claim 1 and 2, is characterized in that: described composition is wetting powder, missible oil, aqueous suspension agent, oil-suspending agent, microemulsion, aqueous emulsion or water dispersible granules.