CN1225554A - Herbicidal composition - Google Patents

Abstract

This invention relates to a herbicidal preparation comprising butroxydim in combination with an ammonium salt.

Description

Herbicidal combinations

The present invention relates to use and have herbicidal methods and the Herbicidal combinations that synergistic effect or other improve the mixture of the weed killer herbicide butroxydim of active effect and ammonium salt.

Butroxydim is 5-(3-bytyry-2,4,6-trimethylphenyl)-2-[1-(ethoxy imino) propyl group]-3-hydroxyl hexamethylene-2-alkene-1-ketone, a kind of cyclohexane diketone weed killer herbicide that is disclosed in the European patent EP 85529.Have now found that it can be used to optionally prevent and treat grassy weed.The Herbicidal combinations of butroxydim and other weed killer herbicide is disclosed among WO9304581 and the EP444769.The particulate composition that comprises butroxydim is disclosed among the WO9314632.

Ammonium salt can not weeding under common using dosage, and in fact they are used as fertilizer and promote plant growing.

The applicant finds, uses the butroxydim and the composition of ammonium salt can produce than the active high herbicidal effect of the expection of independent each compound of use weeds, and crop is not had harmful phytotoxicity effect.

Broadleaf herbicide behind Butroxydim and other seedling shows antagonism as the mixture of bentazone and Fomesafen.The applicant has found to add ammonium salt and can reduce antagonism and improve the control of weeds in some Herbicidal mixtures.

The invention provides the herbicidal formulations of a kind of butroxydim of containing and ammonium salt.

The ammonium salt that is fit to comprises ammonium sulfate, ammonium chloride, carbonic hydroammonium, ammonium nitrate, ammonium citrate, diammonium hydrogen phosphate and ammonium dihydrogen phosphate (ADP).

Preferred ammonium salt is an ammonium sulfate.

Preparation of the present invention has useful activity of weeding.They can prevent and treat the growth of the various plants comprise grassy weed in multiple field in as agricultural and gardening, forest and rainforest.They can be used for broad leaf crop such as soybean, Kidney bean, peanut, cotton and the sunflower of wide spectrum.This compound preferably is applied to the acrial part (postemergence application) of above-mentioned growing plant.

On the other hand, the invention provides a kind ofly by to plant, or it is used butroxydim and ammonium salt vegetatively and suppresses the method for noxious plant growth.

Suppress the required application dosage of noxious plant growth, will depend on the concrete floristics that composition for example prevents and treats and determine., the suitable amount of application of per hectare is 0.001 to 1.0 kilogram usually, preferred 0.01 to 0.25 kilogram of butroxydim, more preferably 0.01 to 0.1 kilogram.The usage ratio that is fit to of Butroxydim and ammonium salt is at 1: 1 to 1: 2000, and preferred 1: 1 to 1: 50, more preferably in 1: 1 to 1: 10 the scope.

Butroxydim and ammonium salt are fit to the form administration with composition.

Therefore, the present invention also provides a kind of Herbicidal combinations, wherein comprises butroxydim and ammonium salt and solid or liquid diluent.

The ratio of butroxydim and ammonium salt is 1: 1 to 1: 2000 in composition, is preferably 1: 1 to 1: 50.More preferably 1: 1 to 1: 10.

Have now found that this composition is particularly suitable for postemergence application to the soybean field.

Also contain surfactant or auxiliary agent in the preferred composition.

The present composition can be branch divided powder or granular solid composite, wherein except that active component, also contain promote that pulvis or particle disperse in liquid wetting agent.Can comprise filler, suspending agent etc. in above-mentioned pulvis or the particle.

Fluid composition comprises that wherein active component preferably is present in solution, dispersant and the emulsion in one or more surfactant.Water or organic liquid can be used for preparing the solution of active component, dispersant, or emulsion.

Also can comprise one or more for example preservative of lauryl isoquinolin bromide in the fluid composition of the present invention.

Surfactant can be a cation, anion or nonionic.The cationic surface active agent that is fit to for example comprises quarternary ammonium salt compound, for example cetrimonium bromide.The anionic surfactant that is fit to for example comprises the soap class, sulfuric acid aliphatic series monoester salt, for example lauryl sodium sulfate; The sulfonate of aromatic compound, dodecyl sodium sulfate for example, calcium and ammonium salt, lignosulfonates, butyl naphthalene sulfonate, and diisopropyl-and the mixture of triisopropyl-naphthalene sulfonate salt.The nonionic surface active agent that is fit to for example comprises the condensation product of oxirane and fatty alcohol such as oleyl alcohol and hexadecanol, or with alkyl phenol such as octyl phenol, the condensation product of nonyl phenol and octyl cresol.The half ester of other non-ionic surface active agent for deriving, for example sorbitan monolaurate from long-chain fatty acid and hexitan; The condensation product of described half ester and oxirane and lecithin.

With solution, the composition that dispersant or emulsion form are used uses with the form of the concentrate that contains a high proportion of active component usually, before use the dilutable water concentrate.When dilute with water contained the concentrate of sodium bicarbonate, composition of the present invention was particularly useful.Above-mentioned concentrate need stand long-term storage usually, and through behind the above-mentioned storage, can be diluted with water to keep uniform water prepared product to use to guarantee the spraying apparatus that it can enough routines for a long time.

Except carrier and surfactant, the present composition can comprise the various other components that increases its purposes.For example, they can comprise the pH value buffer salt within the required range that keeps composition; Antifreezing agent, for example urea or propane diols; Auxiliary agent, for example oil and wetting agent; With when the time, help prevent the interleaving agent that forms insoluble precipitation, for example citric acid and ethylenediamine tetra-acetic acid with the hard water diluted composition.Can contain antisettling agent and anti-caking agent in the water dispersant.Usually can contain dyestuff or pigment in the composition so that the color of feature on the composition band.Also can add the reagent that improves viscosity, form small droplet when spraying, thereby reduce spray drift to reduce.Other additive that is used for specific purpose all is that formulation art is known to the skilled.

Usually, generally contain 10 to 90% in the concentrate, the active component of preferred 25 to 90% weight.According to its application target, can contain the active component of wide region variable quantity in the used dilution preparation, the dilution preparation that contains 0.01% to 1% weight active component is fit to multiple use.

Preparation of the present invention preferably exists with a kind of single composition.; they also can be present in the double pack container; comprise in its compartment comprising butroxydim and the solid that mixes with it or the composition of liquid diluent, comprise in second compartment comprising ammonium salt and the solid of choosing wantonly that mixes with it or the composition of liquid diluent.

Content in two compartments can for example, mix two kinds of compositions before dispenser mixing subsequently in water.

Except butroxydim and ammonium salt, the present composition also can contain the compound of one or more biologically active, weed killer herbicide for example, bactericide, insecticide (the selectable insecticidal synergist that contains) and plant growth regulator.Other weed killer herbicide normally has the weed killer herbicide of complementation in specific use.

Have the example of the weed killer herbicide of complementation to comprise:

A. benzo-2,1,3-thiadiazine-4-ketone-2, the 2-dioxide is as bentazone;

B. hormone herbicide, particularly phenoxy alkane acid class, as 2,4-Embutox and benazolin;

C. diphenyl ether herbicide is as restraining wealthy pleasure, fluoroglycofen-ethyl, or its salt or ester, nitrofen, bifenox, acifluorfen and its salt and ester, Oxyfluorfen, Fomesafen, Mo 9 granular and chlomethoxyfen;

D. phenoxy group phenoxy propionic acid ester herbicide such as diclofop-methyl and its ester such as methyl esters, fluazifop and its ester, the spirit of pyrrole fluorine chlorine standing grain and its ester, quizalofop-ethyl and its ester and high fenoxaprop-P and its ester such as ethyl ester;

E. cyclohexane diketone weed killer herbicide such as alloxydimsodium and salt thereof, sethoxydim, cycloxydim, tralkoxydim, and clethodim;

F. sulfonylurea herbicide such as chlorimuron and ester thereof such as its ethyl ester;

G. imidazolidinone weedicide such as weed eradication quinoline, miaow grass ester, weed eradication cigarette and isopropyl ammonium salt thereof, Imazethapyr;

Following embodiment has listed the present invention.

Embodiment 1

With butroxydim be mixed with 25% granular water-dispersible agent and and ammonium sulfate (AMS) mixture be prepared into a barrel mixture.With a kind of oil/surfactant mixture, TURBOCHARGE (obtaining from Zeneca Co., Ltd) with 0.25% concentration of final sprayed volume, joins during all handle.Various spray solutions are administered on the weeds kind that is shown in the table I by the crawler type sprayer, and amount of application is 200l/ha.

The table I

Weeds kind when handling for the examination weeds

The 6.5 leaf phases of code lady's-grass vegetative period, 3 tiller DIGSA barnyard grasses (Echinochloa 5.5 leaf phase ECHUTutilis)

4.5 leaf phase of green foxtail SETVI

All weeds kinds all are grown in 3 " in the compost of basin.After the dispenser 21 days, with the standard of 0-100%, visual assessment is to the toxicity of plant, and wherein 0=does not have obviously difference with contrast, and 100=all kills.

The results are shown in the table II.

Table 2

	Dosage ga/ha	AMS concentration %	DIGSA	?ECHUT	?SETVI
						?butroxydim	1	-	0	0	3
?butroxydim	2	-	13	0	0
						?butroxydim	4	-	59	18	75
?butroxydim	8	-	92	78	90
						?butroxydim	1	0.04	38	30	63
?butroxydim	2	0.04	87	85	86
						?butroxydim	4	0.04	97	100	98
?butroxydim	8	0.04	98	100	99
						?butroxydim	1	0.08	42	45	67
?butroxydim	2	0.08	92	94	92
						?butroxydim	4	0.08	96	100	98
?butroxydim	8	0.08	98	100	99
						?butroxydim	1	0.12	68	63	55
?butroxydim	2	0.12	89	89	91
						?butroxydim	4	0.12	98	100	99
?butroxydim	8	0.12	98	100	99

Embodiment 2

With butroxydim be mixed with 25% granular water-dispersible agent and and bentazone (trade name BASAGRAN obtains from BASF AG) and/or ammonium sulfate (AMS) mixture be prepared into a barrel mixture.With a kind of oil/surfactant mixture, TURBOCHARGE (obtaining from Zeneca Co., Ltd) with 0.5% concentration of final sprayed volume, joins during all handle.Various spray solutions are administered on the weeds kind that is shown in the table III by the crawler type sprayer, and amount of application is 2001/ha.

Weeds kind when the table III is handled for the examination weeds

The code lady's-grass 5.5-6.5 leaf phase in vegetative period, 3-4 tiller DIGSA barnyard grass 5.5 leaf phase ECHCG car forearm shape grass 4.5-5.5 leaf phase, 1-2 tiller BRAPL

All weeds kinds all are grown in 3 " in the compost of basin.After the dispenser 21 days, with the standard of 0-100%, visual assessment is to the toxicity of plant, and wherein 0=does not have obviously difference with contrast, and 100=all kills.

The results are shown in the table IV.

The table IV

	Dosage	AMS	BRAPL	?DIGSA	?ECHCG
							??ga/ha	Concentration %
butroxydim	?1	-	?3	?5	?3
						butroxydim	?2	-	?23	?92	?50
butroxydim	?4	-	?100	?96	?98
						Butroxydim+bentazone	?1 ?480	-	?1	?5	?0
Bmroxydim+bentazone	?2 ?480	-	?2	20	?0

Butroxydim+bentazone	4 480	-	2	87	25
						Butroxydim+bentazone	8 480	-	42	92	84
Butroxydim+bentazone	1 480	0.066	2	3	3
						Butroxydim+bentazone	2 480	0.066	3	40	38
Butroxydim+bentazone	4 480	0.066	43	90	98
						Butroxydim+bentazone	8 480	0.066	100	99	100
Butroxydim+bentazone	1 480	0.1	1	2	17
						Butroxydim+bentazone	2 480	0.1	14	67	80
Butroxydim+bentazone	4 480	0.1	43	94	85
						Butroxydim+bentazone	8 480	0.1	100	98	99
Butroxydim+bentazone	1 480	0.5	5	3	0
						Butroxydim+bentazone	2 480	0.5	3	18	13
Butroxydim+bentazone	4 480	0.5	100	96	98
						Butroxydim+bentazone	8 480	0.5	100	97	99

Claims (7)

1. a herbicidal formulations wherein comprises the butroxydim that combines with ammonium salt.

2. herbicidal formulations according to claim 1 is comprising other weed killer herbicide.

3. herbicidal formulations according to claim 2, wherein other weed killer herbicide is a bentazone.

4. herbicidal formulations arbitrary according to claim 1 to 3, ammonium salt wherein is an ammonium sulfate.

5. double pack container, comprise in wherein first separation is asked comprising butroxydim and the solid that mixes with it or the composition of liquid diluent, comprise in second compartment comprising ammonium salt and the selectable solid that mixes with it or the composition of liquid diluent.

6. herbicidal formulations arbitrary according to claim 1 to 4, wherein preparation is a kind of form of single composition.

7. method that suppresses noxious plant growth, it is by to plant, or it uses butroydim and a kind of ammonium salt vegetatively.