CN101027995A - Mefluidion and amido-herbicide composition - Google Patents

Abstract

A composite herbicide for cotton field and maize field contains fluometuron and amide-type herbicide. Its advantages are high effect and safety, broad spectrum and low cost and environmental pollution.

Description

Fluometuron and amide herbicide composition

Technical field

The invention belongs to weed killer herbicide, relate in particular to fluometuron and amide herbicide composition.

Background technology

It is little that the hat level of coverage is planted in cotton fertility in early days, grows multiple single, double cotyledon weeds easily, and often herbicidal effect is not good to use single weed killer herbicide.But it is single that existing weed killer herbicide kind mostly is herbicidal effect, is not to prevent and kill off monocotyledon weed, can only prevent and kill off broadleaf weed exactly, even some weed killer herbicide mixture kinds are arranged, but safety is not high, easily cotton produced poisoning.

Fluometuron is one of main weed killer herbicide that is used in the cotton field, and most of weeds are had the good effect of preventing and kill off, but relatively poor to the effect of grassy weeds such as main weeds lady's-grass, and the longevity of residure is long.The inventor tests discovery, uses fluometuron fool proof to cotton in the cotton field by 120～1800 gram/hectares.Acetamide-group herbicides have the good effect of preventing and kill off to grassy weed, but easily cotton are produced poisoning when dosage is high.Therefore,, killing meeting generation complementation on the grass spectrum if fluometuron and acetamide-group herbicides are used with, and the raising of drug effect, can reduce both using dosages, safer to cotton.By retrieval, do not find that fluometuron and acetamide-group herbicides mix the report that uses.

Summary of the invention

The object of the invention provides a kind of efficient, broad weed-killing spectrum and the higher herbicidal composition of safety, is used for managements of weeds such as cotton field, corn field.

The present invention is achieved through the following technical solutions:

A kind of herbicidal composition contains fluometuron and amides compound.

Said herbicidal composition contains fluometuron 5～80% (percentage by weight, down together), acetamide-group herbicides 5～80%.

Said herbicidal composition, its described acetamide-group herbicides are meant the combination of a kind of of Acetochlor (acetochlor), butachlor (butachlor) or isopropyl methoxalamine (metolachlor) etc. or 2～3 kinds.

Said herbicidal composition contains fluometuron 5～80%, Acetochlor 5～80%.

Said herbicidal composition contains fluometuron 5～80%, butachlor 5～80%.

Said herbicidal composition contains fluometuron 5～80%, isopropyl methoxalamine 5～80%.

Said herbicidal composition is equipped with the known auxiliary agent of those skilled in that art, can be made into multiple formulation.According to well known to a person skilled in the art method, the formulation that the present invention can process is: A, missible oil (EC); B, wetting powder (WP); C, dry suspending agent (DF, WG, WDF); D, pulvis (DP); E, aqueous suspension agent (SC); F, oil-suspending agent (OF); G, aqueous emulsion (EW), H, soluble powder etc.

A, missible oil are by active ingredient is dissolved in the organic solvent, and add other auxiliary agent and be processed into.Its described organic solvent can be one or more compositions among pentane, hydrocarbon alcohol (as ethanol, methyl alcohol), ethyl acetate, chloromethane alkanes, acetone, dimethyl sulfoxide (DMSO), aromatic solvent (as dimethylbenzene, toluene), amide-type and the N-long chain hydrocarbon groups pyrroles hydrocarbon ketone etc.; Described auxiliary agent can be an emulsifier, described emulsifier can be one or more materials among agricultural emulsifier NO series, alkyl benzene calcium sulfonate, soil temperature series, sapn series, newborn 1600 series of farming, agricultural newborn 0206-B, farming breast 2201,0201-B, the alkylaryl polyoxyethylene polyoxypropylene ether, usually consumption is 0.5～30%, preferable amount 1～15%; The present invention also includes synergist penetrant t, JFC, azone, neopelex (ABS), common consumption 0.1～20%, preferable amount 0.2～10%.

B, wetting powder are can homodisperse preparation in water.Wetting powder of the present invention except being added with white carbon black, precipitated calcium carbonate, potter's clay, bentonite, diatomite, beyond thinners such as kaolin or the inert substance, it also contains ionic or nonionic surface active agent (wetting agent, dispersant), for example: draw back powder, NNO, detergent LS, fatty alcohol polyglycol ether sulphate, fatty acid amide N methyl taurine sodium salt, fatty alcohol polyoxyethylene ether sulfate, alkylphenol polyoxyethylene, neopelex (calcium), sodium lignin sulfonate (calcium), among the anionic surfactant such as SPOA one or more, its consumption are 0.1～30%; Also include penetrant t, one or more materials among JFC, azone, the neopelex (ABS), content is 0.1～30%, makes wetting powder through grinding and processing.

C, dry suspending agent are with former the effective elements of the medicine, wetting agent, disintegrant, dispersant and adhesive, by forming with the water mixing granulation.Be used for wetting agent of the present invention and can be among the anionic surfactant such as sodium alkyl sulfate, sodium alkyl benzene sulfonate and benzene sulfonic acid sodium salt one or more, its consumption is 0.1～10%; Be used for disintegrant of the present invention and can be among starch and derivative, alginic acid and salt and the clay etc. one or more, consumption is 0.1～20%; Be used for formaldehyde condensation products that dispersant of the present invention and adhesive are lignosulfonates, alkylbenzenesulfonate, alkylnaphthalene sulfonate and one or more materials among the polycarboxylic acid surfactant.Common consumption 3～30%.

D, pulvis are by with active ingredient and finely divided property solid matter such as talcum, and natural clay such as kaolin, nation's soil, precipitated calcium carbonate and pyrophyllite or diatomite, white carbon black grind together to be made, and supplies 100%.

E, aqueous suspension agent are after active ingredient is passed through to add auxiliary agent and synergist, the preparation that process ball milling, sand milling are made.Auxiliary agent of the present invention can be one or more materials among fatty alcohol polyglycol ether sulphate, fatty acid amide N methyl taurine sodium salt, sodium sulfate of polyethenoxy ether of fatty alcohol, alkylphenol polyoxyethylene sulphate, alkylphenol polyoxyethylene, triphen ethyl-phenol polyoxyethylene, farming breast 2201,0206-B, the emulsifier T-20～emulsifier T-85 series, consumption 0.1～30% usually; The present invention also contains penetrant t, JFC, azone, neopelex (ABS), common consumption 0.1～10%; Ethylene glycol, consumption 0.1～10% usually; CMC, consumption 0.1～10% usually; Xanthans, 0.1～10%; Tributyl phosphate, 0.1～20%.

F, oil-suspending agent are made by former medicine, surfactant adding mineral oil or vegetable oil.Surfactant of the present invention can be the liquid ester class of dioctyl phthalate, alcohol, fatty acid, alicyclic ring alcohol, as repefral, and butyl ester, diisobutyl ester, two laruyl alcohol esters, two cyclic esters, two cyclohexanols and two ring monooctyl esters etc. also can be C ₆-C ₁₀Carboxylic acid such as positive acetate, certain herbaceous plants with big flowers acid, n-nonanoic acid, benzoic acid and ester, as the benzylacetic acid ester, ethyl acetate, ethyl pelargonate, methyl benzoate or ethyl ester etc., consumption 0.1～30% usually; Can be as emulsifier: fatty alcohol polyglycol ether sulphate; fatty acid amide N methyl taurine sodium salt; sodium sulfate of polyethenoxy ether of fatty alcohol; alkylphenol polyoxyethylene sulphate; alkylphenol polyoxyethylene; sodium alkyl benzene sulfonate (calcium), sodium lignin sulfonate (calcium), consumption 0.1～30% usually.

G, aqueous emulsion (EW): contain active ingredient, solvent, emulsifier or dispersant, co-emulsifier, water, antifreeze, defoamer, antimicrobial, density adjuster, pH regulator agent, thickener, colouring agent and smell conditioning agent usually.Wherein have plenty of necessaryly, what have is not essential.Wherein, solvent can be used on the solvent of mentioning in the above-mentioned missible oil; With the mixture (as Pluronic F108, L62, L72) of ethylene oxide-propylene oxide block copolymer, ethoxyquin alkyl phenylate, ethoxyquin alkyl ether, alkyl benzene calcium sulfonate, oxirane-fat primary amine contract and contain the triethanolamine salt of thing or its mixture, Nonoxynol-9, alkyl polyglycol ether, alkyl phenyl polyglycol ether, polyoxyethylene sorbitol acid anhydride ester, polyoxyethylene fatty acid, phenol polyglycol ether phosphate monoester or monoester and diester mixture emulsifier; Dispersant can be polyvinyl alcohol, gum Arabic; Co-emulsifier can be butanols, isobutanol, alkane alcohols; Antifreeze can be ethylene glycol, propane diols, glycerine, urea, sulfuric acid amine, Nacl, CaCl ₂Deng; Defoamer can be a silicone defoaming agent; PH regulator agent available general inorganic or organic acids and base, phosphorylation surfactant; Density adjuster can be Nacl, CaCl ₂, mineral salt, urea; Thickener can be polyacrylate, natural polysaccharide, inorganic thickening agent, but also can use sometimes.

H, soluble powder: preparation is made up of former medicine, filler and auxiliary agent.Filler can be with water miscible mineral salt (as sodium sulphate, sulfuric acid amine etc.), and also available water-fast filler is (as clay, white carbon black, CaCO ₃Deng); Auxiliary agent is anionic, nonionic surface active agent or both mixtures mostly, as alkylaryl polyoxyethylene groups ether, aliphatic alcohol polyethenoxy base ether, alkylbenzenesulfonate, lignosulfonates etc.

Fluometuron described in the said herbicidal composition, Acetochlor (acetochlor), butachlor (butachlor), isopropyl methoxalamine (metolachlor) etc. are in " newly organized agricultural chemicals handbook, 1989, agriculture publishing house; " world's agricultural chemicals complete works (weed killer herbicide volume) ", 2002, narration is arranged in the Chemical Industry Press.

Said herbicidal composition can also be made into mix preparation with other agricultural chemicals.Its described agricultural chemicals is meant weed killer herbicide, insecticide, bactericide etc.

Said herbicidal composition can also be with plant growth regulator, have surfactant (synergist), plant nutrient agent, fertilizer, safener, soil conditioner, the colouring agent of synergistic effect to be mixed with into preparation or companion's formula packaged form.

Herbicidal composition of the present invention can be applied to corn field and prevent and kill off single, double cotyledon weeds except that the cotton field, as lady's-grass, eleusine indica, barnyard grass grass, green foxtail, piemarker, Amaranthus retroflexus, black nightshade, knotweed, lamb's-quarters etc., but is not limited to above-mentioned weeds.

The present invention has compared following advantage than prior art:

(1), broad weed-killing spectrum.Adopt fluometuron to prevent and kill off broadleaf weeds such as piemarker, kitchen garden, Amaranthus retroflexus; Adopt acetamide-group herbicides to prevent and kill off grassy weeds such as eleusine indica, lady's-grass, barnyard grass grass, green foxtail, solved the monocotyledon weed and the broadleaf weed in cotton field simultaneously.

(2), drug effect height.The present invention has improved the drug effect height, has reduced the agricultural chemicals usage amount, has reduced production cost and use cost, has also reduced environmental pollution simultaneously.

(3), the longevity of residure is moderate.The fluometuron longevity of residure is long, about 100 days.And acetamide-group herbicides longevity of residure appearance is to shorter, and both use back drug effect height with, can reduce the using dosage of fluometuron, shortens the longevity of residure, avoids the harm to late stubble sensitive crop.

(4), safe.The present invention has reduced the usage amount of fluometuron and acetamide-group herbicides, and is therefore safer to cotton.

Embodiment

(1), preparation embodiment

With the method that those skilled in that art know, the prescription that provides according to embodiment 1～embodiment 12 in following table 1, table 2 and the table 3 takes by weighing each amount of substance, can make different missible oil of the present invention and wetting powder.The embodiment of other formulation of the present invention does not enumerate one by one at this.Below prescription only illustrates, and the present invention is not constituted any restriction.

Table 1 fluometuron prepares the prescription of missible oil of the present invention respectively with butachlor and Acetochlor

Raw material	Embodiment 1	Embodiment 2	Raw material	Embodiment 3	Embodiment 4
						The former medicine of fluometuron	20	15	The former medicine of fluometuron	20	15
Butachlor active compound	36	15	Acetochlor tc	36	15
						Dimethylformamide	28	32	Dimethylformamide	28	32
Methyl alcohol	10	32	Methyl alcohol	10	32
						Phenethyl phenol polyoxyethylene polyoxypropylene ether	4	4	Phenethyl phenol polyoxyethylene polyoxypropylene ether	4	4
Alkyl benzene calcium sulfonate	2	2	Alkyl benzene calcium sulfonate	2	2

Table 2 fluometuron prepares the prescription of wetting powder of the present invention respectively with butachlor and Acetochlor

Raw material	Embodiment 5	Embodiment 6	Raw material	Embodiment 7	Embodiment 8
						The former medicine of fluometuron	40	20	The former medicine of fluometuron	40	20
Butachlor active compound	12	6	Acetochlor tc	12	6
						Bentonite	30	60	Diatomite	30	60
White carbon	6	4	White carbon	6	4
						Sodium alkyl benzene sulfonate	4	4	Sodium alkyl benzene sulfonate	4	4
NNO	6	4	NNO	6	4
						Detergent LS	2	2	Detergent LS	2	2

Table 3 fluometuron and isopropyl methoxalamine prepare the prescription of emulsion of the present invention and wetting powder

Raw material	Embodiment 9	Embodiment 10	Raw material	Embodiment 11	Embodiment 12
						The former medicine of fluometuron	20	15	The former medicine of fluometuron	40	20
The former medicine of isopropyl methoxalamine	36	15	The former medicine of isopropyl methoxalamine	12	6
						Dimethylformamide	28	32	Bentonite	30	60
Methyl alcohol	10	32	White carbon	6	4
						Phenethyl phenol polyoxyethylene polyoxypropylene ether	4	4	Sodium alkyl benzene sulfonate	4	4
Alkyl benzene calcium sulfonate	2	2	NNO	6	4
									Detergent LS	2	2

(2) experimental example

1, laboratory test

Indoor synergistic effect of the present invention is measured, adopted Colby method theory of computation growth rate, theoretical growth rate=XY/100, X and Y are respectively the percentage of medicament list time spent plant weight for contrast.Actual growth rate is synergistic effect less than theoretical growth rate, otherwise is antagonism.

Result's (seeing Table 4～table 9) shows that fluometuron uses with isopropyl methoxalamine, Acetochlor, butachlor respectively lady's-grass, piemarker and Amaranthus retroflexus are had obvious synergistic effect.

Table 4 fluometuron and isopropyl methoxalamine are used the synergistic effect to lady's-grass with

Handle (gram ai./667m 2)	Actual growth rate		Theoretical growth rate *
					The strain number	Fresh weight (g)	The strain number	Fresh weight (g)
	Fluometuron 20	45.8	25.8	-					-
Fluometuron 30					38.2	23.6	-	-
	Fluometuron 40	0.8	0.2	-					-
Isopropyl methoxalamine 12					10.0	6.5	-	-
	Isopropyl methoxalamine 24	8.0	3.0	-					-
Isopropyl methoxalamine 36					4.0	2.0	-	-
	Fluometuron 20+ isopropyl methoxalamine 12	+2.5	+0.6	4.58					1.68
Fluometuron 20+ isopropyl methoxalamine 24					+0.0	+0.0	3.66	0.77
	Fluometuron 20+ isopropyl methoxalamine 36	+0.0	+0.0	1.83					0.52
Fluometuron 30+ isopropyl methoxalamine 12					+1.4	+0.4	3.82	1.53
	Fluometuron 30+ isopropyl methoxalamine 24	+0.0	+0.0	3.06					0.71
Fluometuron 30+ isopropyl methoxalamine 36					+0.0	+0.0	1.53	0.47
	Fluometuron 40+ isopropyl methoxalamine 12	+0.0	+0.0	0.08					0.01
Fluometuron 40+ isopropyl methoxalamine 24					+0.0	+0.0	0.06	0.01
	Fluometuron 40+ isopropyl methoxalamine 36	+6.0	+0.0	0.02					0.01

Annotate: "+" expression synergistic effect, "-" expression antagonism (down together).

Table 5 fluometuron and isopropyl methoxalamine are used the synergistic effect to piemarker, Amaranthus retroflexus with

Handle (gram ai./667m 2)	Actual growth rate %		Theoretical growth rate %
					Piemarker	Amaranthus retroflexus	Piemarker	Amaranthus retroflexus
	Fluometuron 20	76.58	82.97	-					-
Fluometuron 30					34.23	23.55	-	-
	Fluometuron 40	1.80	0.36	-					-
Isopropyl methoxalamine 12					54.95	92.75	-	-
	Isopropyl methoxalamine 24	48.65	50.72	-					-
Isopropyl methoxalamine 36					8.11	25.36	-	-
	Fluometuron 20+ isopropyl methoxalamine 12	+24.32	+6.88	42.08					76.95
Fluometuron 20+ isopropyl methoxalamine 24					+31.53	+1.09	37.26	42.08
	Fluometuron 20+ isopropyl methoxalamine 36	+6.31	+0.36	6.41					21.04
Fluometuron 30+ isopropyl methoxalamine 12					+9.91	+1.81	18.80	21.84
	Fluometuron 30+ isopropyl methoxalamine 24	+16.22	+0.72	16.65					11.94
Fluometuron 30+ isopropyl methoxalamine 36					+1.80	+0.00	2.78	5.97
	Fluometuron 40+ isopropyl methoxalamine 12	+0.00	+1.09	0.99					33.39
Fluometuron 40+ isopropyl methoxalamine 24					+0.00	+0.72	0.88	18.26
	Fluometuron 40+ isopropyl methoxalamine 36	+0.00	+0.00	0.66					9.13

Table 6 fluometuron and Acetochlor are used the synergistic effect to lady's-grass with

Handle (gram ai./667m 2)	Actual growth rate		Theoretical growth rate
					The strain number	Fresh weight (g)	The strain number	Fresh weight (g)
	Fluometuron 20	32.2	28.6	-					-
Fluometuron 30					30.8	22.9	-	-
	Fluometuron 40	1.8	2.3	-					-
Acetochlor 12					7.0	4.6	-	-
	Acetochlor 24	2.5	3.0	-					-
Acetochlor 36					0	0	-	-
	Fluometuron 20+ Acetochlor 12	+1.0	+1.1	2.25					1.32
Fluometuron 20+ Acetochlor 24					+0.4	+0.7	0.81	0.86
	Fluometuron 20+ Acetochlor 36	0	0	0					0
Fluometuron 30+ Acetochlor 12					+1.9	+0.9	2.16	1.05
	Fluometuron 30+ Acetochlor 24	+0.6	+0.5	0.77					0.69
Fluometuron 30+ Acetochlor 36					0	0	0	0
	Fluometuron 40+ Acetochlor 12	+0.9	+0.6	0.13					0.11
Fluometuron 40+ Acetochlor 24					+0.04	+0	0.05	0.07
	Fluometuron 40+ Acetochlor 36	0	0	0					0

Table 7 fluometuron and Acetochlor are used the synergistic effect to piemarker, Amaranthus retroflexus with

Handle (gram ai./667m 2)	Actual growth rate %		Theoretical growth rate %
					Piemarker	Amaranthus retroflexus	Piemarker	Amaranthus retroflexus
	Fluometuron 20	76.58	82.97	-					-
Fluometuron 30					34.23	23.55	-	-
	Fluometuron 40	1.80	0.36	-					-
Acetochlor 12					64.54	84.58	-	-
	Acetochlor 24	47.76	52.25	-					-
Acetochlor 36					15.17	27.61	-	-
	Fluometuron 20+ Acetochlor 12	+24.32	+6.88	49.42					70.18
Fluometuron 20+ Acetochlor 24					+21.53	+1.09	26.21	43.35
	Fluometuron 20+ Acetochlor 36	+6.31	+0.36	11.62					22.91
Fluometuron 30+ Acetochlor 12					+9.91	+1.81	22.09	19.92
	Fluometuron 30+ Acetochlor 24	+16.22	+0.72	16.35					12.30
Fluometuron 30+ Acetochlor 36					+1.80	+0.00	5.19	6.50
	Fluometuron 40+ Acetochlor 12	+0.00	+0.09	1.16					0.30
Fluometuron 40+ Acetochlor 24					+0.00	+0.12	0.86	0.18
	Fluometuron 40+ Acetochlor 36	+0.00	+0.00	0.27					0.09

Table 8 fluometuron and butachlor are used the synergistic effect to lady's-grass with

Handle (gram ai./667m 2)	Actual growth rate		Theoretical growth rate
					The strain number	Fresh weight (g)	The strain number	Fresh weight (g)
	Fluometuron 20	32.0	0.5	-					-
Fluometuron 30					38.3	0.5	-	-
	Fluometuron 40	0.7	0.0	-					-
Butachlor 12					81.3	2.1	-	-
	Butachlor 24	57.0	1.4	-					-
Butachlor 36					51.0	1.1	-	-
	Fluometuron 20+ butachlor 12	+25.0	+0.4	26.0					1.1
Fluometuron 20+ butachlor 24					+11.7	+0.1	18.2	0.7
	Fluometuron 20+ butachlor 36	+0.0	0.0	16.3					0.0
Fluometuron 30+ butachlor 12					+20.7	+0.3	31.1	1.1
	Fluometuron 30+ butachlor 24	+0.0	+0.0	21.8					0.7
Fluometuron 30+ butachlor 36					+0.0	+0.0	19.5	0.01
	Fluometuron 40+ butachlor 12	+0.3	0.0	0.57					0.0
Fluometuron 40+ butachlor 24					+0.0	0.0	0.40	0.0
	Fluometuron 40+ butachlor 36	+0.0	0.0	0.36					0.0

Table 9 fluometuron and butachlor are used the synergistic effect to piemarker, Amaranthus retroflexus with

Handle (gram ai./667m 2)	Actual growth rate %		Theoretical growth rate %
					Piemarker	Amaranthus retroflexus	Piemarker	Amaranthus retroflexus
	Fluometuron 20	76.58	82.97	-					-
Fluometuron 30					34.23	23.55	-	-
	Fluometuron 40	1.80	0.36	-					-
Butachlor 12					91.89	85.14	-	-
	Butachlor 24	80.18	63.41	-					-
Butachlor 36					72.07	66.67	-	-
	Fluometuron 20+ butachlor 12	+60.36	+19.93	70.36					70.64
Fluometuron 20+ butachlor 24					+54.95	+16.67	61.40	52.61
	Fluometuron 20+ butachlor 36	+31.53	+8.33	55.19					55.32
Fluometuron 30+ butachlor 12					+30.54	+19.20	31.45	20.05
	Fluometuron 30+ butachlor 24	+16.22	+7.61	27.45					14.93
Fluometuron 30+ butachlor 36					+7.21	+1.81	24.67	15.70
	Fluometuron 40+ butachlor 12	+18.92	+0.72	1.65					30.65
Fluometuron 40+ butachlor 24					+2.70	+0.36	1.44	22.83
	Fluometuron 40+ butachlor 36	+0.00	+0.00	1.29					2.40

2, field trial

Control efficiency in the field to herbicidal composition of the present invention is tested, and the computational methods of weeds preventive effect are: weeds preventive effect (%)=(X-Y)/Y*100,

X wherein: weeds fresh weight when being untreated

Y: the weeds fresh weight after the drug treating

Result's (seeing Table 10) is followed successively by the fresh weight preventive effect order of lady's-grass: 30% volt of different＞30% volt second＞30% volt of fourth＞50% Acetochlor＞72% propisochlor＞50% fluometuron＞60% butachlor; Fresh weight preventive effect order to Amaranthus retroflexus is according to this: 30% volt of different＞30% volt second＞50% fluometuron＞30% volt fourth＞60% butachlor＞72% propisochlor＞50% Acetochlor.Remove when preventing and kill off Amaranthus retroflexus, 50% fluometuron slightly is better than beyond 30% volt of fourth, and as can be seen, herbicidal composition of the present invention obviously is better than each weed killer herbicide list usefulness to the preventive effect of lady's-grass and Amaranthus retroflexus.

The effect of table 10 fluometuron and acetamide-group herbicides management of weeds lady's-grass and Amaranthus retroflexus

Handle (g a.i./667m 2)	Lady's-grass				Amaranthus retroflexus
									Strain/m 2	Preventive effect %	Gram/m 2	Preventive effect %	Strain/m 2	Preventive effect %	Gram/m 2	Preventive effect %
	30% volt of different EC 900	31.5	92.7a	2.9	98.3a	0.0	100.0a	0.0									100.0 a
30% volt of second EC 900									33.8	92.2a	6.7	96.1a	12.8	90.6b	1.2	97.1a
	30% volt of fourth EC 900	34.0	92.2a	9.5	94.5a	24.8	81.7c	2.3									94.6b
50% fluometuron WP 1200									69.3	84.1b	16.8	90.3 ab	28.5	78.9c	2.1	94.9b
	72% propisochlor EC 1080	37.3	91.4a	35.2	91.9 ab	120.0	11.1c	22.3									46.6c
50% acetochlor ec 750									69.5	84.0b	11.4	93.4a	82.6	38.8c	22.7	45.5c
	60% butachlor EC 750	97.7	77.5b	24.7	85.7b	108.8	19.4c	21.0									49.6c
CK									434.3		172.5		135.0		41.7

Annotate: volt=fluometuron; Different=isopropyl methoxalamine; Second=Acetochlor; Fourth=butachlor; Each medicament recommended dose routinely uses; Same letter is represented difference not remarkable (P=0.05).

Claims (9)

1, a kind of herbicidal composition is characterized in that containing fluometuron and acetamide-group herbicides.

2,, it is characterized in that containing fluometuron 5～80% (percentage by weight, down together), acetamide-group herbicides 5～80% according to the described herbicidal composition of claim 1.

3,, it is characterized in that its described acetamide-group herbicides are meant the combination of a kind of of Acetochlor, butachlor or isopropyl methoxalamine etc. or 2～3 kinds according to claim 1 or 2 described herbicidal compositions.

4, according to the described herbicidal composition of claim 3, it is characterized in that containing fluometuron 5～80%, Acetochlor 5～80%.

5, according to the described herbicidal composition of claim 3, it is characterized in that containing fluometuron 5～80%, butachlor 5～80%.

6, according to the described herbicidal composition of claim 3, it is characterized in that containing fluometuron 5～80%, isopropyl methoxalamine 5～80%.

7,, it is characterized in that the formulation that can process is missible oil, wetting powder, dry suspending agent, pulvis, aqueous suspension agent, oil-suspending agent, aqueous emulsion, soluble powder etc. according to claim 1 or 2 described herbicidal compositions.

8,, it is characterized in that and to form mix preparation with other agricultural chemicals according to claim 1 or 2 described herbicidal compositions.

9,, it is characterized in that its described agricultural chemicals is a kind of of weed killer herbicide, insecticide, bactericide etc. according to the described herbicidal composition of claim 8.