CN101961022A

CN101961022A - Herbicidal composition for corn field

Info

Publication number: CN101961022A
Application number: CN2010102865116A
Authority: CN
Inventors: 赵邦斌; 鲍恩付; 汪劲松; 周俊; 余年生
Original assignee: Hefei Xingyu Chemical Co Ltd
Current assignee: Hefei Xingyu Chemical Co Ltd
Priority date: 2010-09-16
Filing date: 2010-09-16
Publication date: 2011-02-02

Abstract

The invention discloses an herbicidal composition for a corn field. The composition comprises a component (a) and a component (b), wherein the component (a) is foramsulfuron, the component (b) is at least one of cyanazine, rimsulfuron, atrazine, bentazone, eluthiacet-methyl and bromoxynil octanoate; and the weight ratio of the component (a) to the component (b) is 1:1-70. The herbicidal composition for the corn field can prevent and control gramineous weeds and most broadleaf weeds, has good prevention and control effects and obvious synergy and effectively expands the weed control spectrum.

Description

A kind of Herbicidal combinations that is used for corn field

Technical field

The present invention relates to a kind of Herbicidal combinations that is used for corn field, belong to technical field of pesticide.

Background technology

Corn is one of China's main economic crops, especially in China northeast, area, the Inner Mongol is topmost economic crops, also there is distribution in other area of China in addition.Controlling corn ground weed harm fast and effectively is to improve one of main method of corn yield.

Its mechanism of action of foramsulfuron is the same with other sulfonylurea herbicides, it also is acetolactate synthestase (ALS) inhibitor, be mainly used in corn field and prevent and kill off grassy weed, as many important grass family class weeds such as the preventive effect of barnyard grass grass, green foxtail, false jowar, eleusine indica and couchgrass are reached 90-100%.Result of use was best when foramsulfuron enlivened with growth in the weeds seedling phase most, seedling phase of grassy weed to the early stage result of use the best of tillering, but foramsulfuron is lower to the preventive effect of weeds such as broad leaved weed such as lamb's-quarters and knotweed, as when strengthening consumption, then can inhibitory action be arranged, and use the foramsulfuron of single dose easily to make weeds produce certain pesticide resistance for a long time plant growth.

Fluorine Kusatsu, rimsulfuron, atrazine, bentazone, fluthiacet, these six kinds of weed killer herbicides of bromoxynil octanoate have the advantage of high selectivity, efficient, low toxicity and low-residual, be important corn field herbicide, have better effect preventing and kill off on broad leaved weed such as the weeds such as lamb's-quarters and knotweed.

Summary of the invention

The object of the present invention is to provide and a kind ofly can prevent and treat grassy weed, can prevent and treat most broad leaved weed again, and preventive effect good, kill careless spectrum width be used for the corn field Herbicidal combinations.

The Herbicidal combinations that is used for corn field of the present invention, said composition contain component (a) and component (b), (a) are foramsulfuron, (b) are at least a in fluorine Kusatsu, rimsulfuron, atrazine, bentazone, fluthiacet and the bromoxynil octanoate; Described component (a) is 1: 1～70 with the weight ratio of component (b).

In said composition, be added with on the agriculture preparation acceptable auxiliary material and can make various weed killer herbicide formulations such as oil-suspending agent, missible oil, wetting powder or water-dispersible granules.

Composition of the present invention can be mixed with oil suspending agent, water-dispersible granules, missible oil, wetting powder etc. according to the method for well known to a person skilled in the art.When preparation oil suspending agent, water-dispersible granules, missible oil, wetting powder etc., active ingredient is component (a) and the amount of component (b) is 1～85% of a gross weight.

The acceptable auxiliary material that is added with in said composition on the agriculture preparation of the present invention can be made various weed killer herbicide formulations such as oil-suspending agent, missible oil, wetting powder or water-dispersible granules, and the acceptable auxiliary material comprises and is mixed with the needed auxiliary agent of different preparations, surfactant, suspending agent etc. on the wherein agriculture preparation.

The auxiliary agent of oil suspending agent of the present invention can be the organobentonite bentonite, white carbon, methyl oleate, soybean salad oil etc., surfactant can be alkylbenzenesulfonate (No. 500, a farming breast), fatty alcohol polyoxyethylene ether sulfate (AES), alkylphenol polyoxyethylene (No. 100, farming breast), styryl phenol polyethenoxy ether (agricultural emulsifier NO), alkylphenol polyoxyethylene formaldehyde condensation products (Nongru-700 number), castor oil polyoxyethylene ether (BY, EL), fatty alcohol-polyoxyethylene ether, the aliphatic alcohol polyethenoxy ester, polyol fatty acid ester and ethylene oxide adduct (Span thereof, Tween series) any one in or multiple combination, its amount can account for the 5-15% of total agent; The cosolvent of missible oil can be a cyclohexanone, acetone, dimethylacetylamide, methyl alcohol, one or more combinations in the dimethyl sulfoxide (DMSO), account for 5～20% of gross weight, solvent can be a dimethylbenzene, toluene, one or more combinations in the solvent naphtha, surfactant can be alkylbenzenesulfonate (No. 500, a farming breast), fatty alcohol polyoxyethylene ether sulfate (AES), alkylphenol polyoxyethylene (No. 100, farming breast), styryl phenol polyethenoxy ether (agricultural emulsifier NO), alkylphenol polyoxyethylene formaldehyde condensation products (Nongru-700 number), castor oil polyoxyethylene ether (BY, EL), fatty alcohol-polyoxyethylene ether, the aliphatic alcohol polyethenoxy ester, polyol fatty acid ester and ethylene oxide adduct (Span thereof, Tween series) any one in or multiple combination, it can account for 5～15% of gross weight; The auxiliary agent of wetting powder can be one or more combinations in high clay, bentonite, potter's clay, diatomite, white carbon, the precipitated calcium carbonate, surfactant can be any one or the multiple combination in naphthalenesulfonate formaldehyde condensation compound (NNO), anion naphthalene sulfonate (MF, CNF), lignosulfonates, carboxymethyl cellulose, alkylbenzenesulfonate, fatty alcohol sulfonate, the alkylphenol polyoxyethylene, accounts for the 5-20% of total amount; The auxiliary agent of water-dispersible granules can be one or more combinations in high clay, bentonite, potter's clay, diatomite, white carbon, the precipitated calcium carbonate, surfactant can be any one or the multiple combination in the condensation product (as polyoxyethylene nonylphenol ether-15) of naphthalenesulfonate formaldehyde condensation compound (NNO), anion naphthalene sulfonate (MF, CNF, BX), lignosulfonates, cellulose, carboxymethyl cellulose, alkylbenzenesulfonate, fatty alcohol sulfonate, alkylphenol polyoxyethylene, alkyl phenol and oxirane, accounts for the 5-20% of main body total amount.

The Herbicidal combinations that is used for corn field of the present invention can be prevented and kill off grassy weed and can prevent and kill off most of broad leaved weeds again, and preventive effect is good, and synergistic effect is obvious, has effectively enlarged to kill the grass spectrum.

Embodiment

Embodiment 1

Each composition weight proportioning of 20% foramsulfuron fluorine Kusatsu missible oil:

Foramsulfuron 4%,

Fluorine Kusatsu 16%,

DMSO 6％，

Methyl alcohol 3%,

Calcium dodecyl benzene sulfonate 5%,

Agricultural emulsifier NO 7%,

Dimethylbenzene supplies 100%.

Compound method: each material is added down in the reactor successively, under stirring condition, it is fully mixed.

The drug effect report of 20% foramsulfuron fluorine Kusatsu missible oil: the corn 2-4 leaf phase, weeds 2-5 leaf phase dispenser, 30 days investigation strain preventive effect results are as follows behind the medicine:

Result of the test shows: herbicidal effect will be higher than the arbitrary single agent in the component after foramsulfuron fluorine Kusatsu was used with, helped increasing mutually drug effect, and did not have the anti-effect of picking up.

Embodiment 2

Each composition weight proportioning of 7% foramsulfuron rimsulfuron oil suspending agent:

Foramsulfuron 3%,

Rimsulfuron 4%,

Organobentonite 4%,

Farming breast No. 500 10%,

Agricultural emulsifier NO 3%,

Farming breast No. 100 2%,

Methyl oleate supplies 100%.

Compound method: each material is added down in the reactor successively, under stirring condition, it is fully mixed, make average grain diameter below 5 μ m, just obtain oil suspending agent with case of wet attrition.

The drug effect report of 7% foramsulfuron rimsulfuron oil suspending agent: the corn 2-4 leaf phase, weeds 2-5 leaf phase dispenser, 30 days investigation strain preventive effect results are as follows behind the medicine:

Result of the test shows: herbicidal effect will be higher than the arbitrary single agent in the component after the foramsulfuron rimsulfuron was used with, helped increasing mutually drug effect, and did not have antagonism.

Embodiment 3

Each composition weight proportioning of 80% foramsulfuron atrazine wetting powder:

Foramsulfuron 2%,

Atrazine 78%,

Methylcellulose 3%,

Alcohol APEO (JFC) 2%,

Kaolin supplies 100%

Compound method: each material is added down in the reactor successively, under stirring condition, it is fully mixed, get final product with carrying out atomized drying after the case of wet attrition again.

The drug effect report of 80% foramsulfuron atrazine wetting powder: the corn 2-4 leaf phase, weeds 2-5 leaf phase dispenser, 30 days investigation strain preventive effect results are as follows behind the medicine:

Result of the test shows: herbicidal effect will be higher than the arbitrary single agent in the component after the foramsulfuron atrazine was used with, helped increasing mutually drug effect, and did not have antagonism.

Embodiment 4

Each composition weight proportioning of 70% foramsulfuron bentazone water dispersible granules:

Foramsulfuron 1kg,

Bentazone 69kg,

Sodium lignin sulfonate 2kg,

Nekal BX 0.2kg,

Polyoxyethylene nonylphenol ether-15 1.5kg,

Cellulose 0.01kg,

White carbon 4kg,

Water 22.29kg.

After preparing, above-mentioned feed liquid, promptly gets 70% required foramsulfuron bentazone water dispersible granules by spray drying granulation again through the wet type ultramicro grinding.

The drug effect report: the corn 2-4 leaf phase, weeds 2-5 leaf phase dispenser, 30 days investigation strain preventive effect results are as follows behind the medicine:

Result of the test shows: herbicidal effect will be higher than the arbitrary single agent in the component after the foramsulfuron bentazone was used with, helped increasing mutually drug effect, and did not have antagonism.

Embodiment 5

Each composition weight proportioning of the hot piperazine Aunar of 86% first sulfone bentazone wetting powder

Foramsulfuron 1%,

Fluthiacet 10%,

Rimsulfuron 3%,

Bentazone 40%,

Atrazine 20%,

Bromoxynil octanoate 12%

Methylcellulose 3%,

JFC 2％，

Kaolin supplies 100%.

Compound method: each material is once added down in the reactor, it is fully mixed and reach certain fineness and carry out atomized drying again and get final product.

The drug effect report of the hot piperazine Aunar of 86% first sulfone bentazone wetting powder: the corn 2-4 leaf phase, weeds 2-5 leaf phase dispenser, 30 days investigation strain preventive effect results are as follows behind the medicine:

Result of the test shows: killing careless effect after composite increases, and kills the grass spectrum and becomes big, than the single use of each weed killer herbicide obvious synergistic effect is arranged.

Embodiment 6

Each composition weight proportioning of 20% foramsulfuron bromoxynil octanoate missible oil:

Foramsulfuron 5%,

Octanoyl bromide benzene acetonitrile 15%,

DMSO 5％，

Methyl alcohol 2%,

Farming breast No. 500 4%,

Agricultural emulsifier NO 5%,

Dimethylbenzene 64%.

Compound method: each material is once added down in the reactor, under stirring condition, it is fully mixed.

The drug effect report of 20% foramsulfuron bromoxynil octanoate missible oil: the corn 2-4 leaf phase, weeds 2-5 leaf phase dispenser, 30 days investigation strain preventive effect results are as follows behind the medicine:

Result of the test shows: foramsulfuron bromoxynil octanoate complex composition herbicidal effect has obvious synergistic effect than single weed killer herbicide, and is especially obvious to grassy weed eleusine indica effect.

Embodiment 7

Each composition weight proportioning of 24% foramsulfuron atrazine oil suspending agent:

Foramsulfuron 4%,

Atrazine 20%,

White carbon 4%,

Farming breast 0,408 10%,

Methyl oleate 62%.

The drug effect report of 24% foramsulfuron atrazine oil suspending agent: the corn 2-4 leaf phase, weeds 2-5 leaf phase dispenser, 30 days investigation strain preventive effect results are as follows behind the medicine:

Claims

1. Herbicidal combinations that is used for corn field, said composition contains component (a) and component (b), (a) is foramsulfuron, (b) is at least a in fluorine Kusatsu, rimsulfuron, atrazine, bentazone, fluthiacet and the bromoxynil octanoate; Described component (a) is 1: 1～70 with the weight ratio of component (b).

2. Herbicidal combinations according to claim 1 is characterized in that, is added with on the agriculture preparation acceptable auxiliary material in the said composition and makes various weed killer herbicide formulations.

3. Herbicidal combinations according to claim 2 is characterized in that, described weed killer herbicide formulation is oil-suspending agent, missible oil, wetting powder or water-dispersible granules.

4. Herbicidal combinations according to claim 3 is characterized in that, in the described weed killer herbicide formulation, component (a) is 1～85% of a gross weight with the amount of component (b).