CN108124891A - A kind of Herbicidal composition for rice field - Google Patents

Abstract

The invention discloses a kind of Herbicidal composition for rice field and its applications, by [4 (6 chlorine 1 of the first active constituent (R) 2,3 benzoxazole, 2 oxygroup) phenoxy group] N, N dicyanos methyl propanamide and the second active constituent penoxsuam and auxiliary agent form, and the weight ratio of the first active constituent and the second active constituent is 1:90~90:1.This composition can be configured to the missible oil agriculturally allowed, wettable powder, water dispersible granules, aqueous emulsion, microemulsion, aqueous suspension agent, dispersible oil-suspending agent.Instant component is reasonable, herbicidal effect is good, drug cost is low, and its activity and with herbicidal effect be not each component activity simple superposition, compared with existing single formulation, in addition to significant herbicidal effect, and there is significant synergistic effect, delaying drug resistance, safety is good, meets the security requirement of pesticidal preparations.The present invention has weeds higher activity of weeding for the annual and perennial weeds of rice terrace.

Description

A kind of Herbicidal composition for rice field

Technical field

The present invention relates to a kind of Herbicidal composition for rice field, by active constituent (R) -2- [4- (chloro- 1, the 3- benzoxazoles of 6- - 2- oxygroups) phenoxy group]-N, N- dicyanos methyl propanamide and penoxsuam and auxiliary agent composition, belong to Recompounded pesticide technology neck Domain.

Background technology

(R) -2- [4- (chloro- 1, the 3- benzoxazoles -2- oxygroups of 6-) phenoxy group]-N, N- dicyano methyl propanamides belong to benzene Bing oxazole -2- oxygroup phenoxy group propionyl imine compounds, can inhibit the acetyl-CoA carboxylase (ACCase) of grassy weed Activity, for preventing and kill off the weeds on crops, the particularly grassy weeds such as rice terrace barnyard grass, moleplant seed, lady's-grass, eleusine indica, It is good to Security of rice.

Penoxsuam, English name penoxsulam, chemical name are：2- (2,2- difluoros ethoxy)-N- (5,8- diformazans Oxygen (1,2,4) triazole-(1,5-C) pyrimidine -2-base) -6- trifluoromethyls-benzene sulfanilamide (SN).Penoxsuam is that broad spectrum activity conduction type removes Careless agent, medicine are absorbed via cauline leaf, young shoot and root system, are conducted by xylem and bast to separate living tissue, are inhibited plant strain growth, Make growing point chlorosis, 7~14d terminal buds redden, is downright bad after processing, and plant is dead within 2~4 weeks.Grassy weed barnyard grass can effectively be prevented and kill off Grass, moleplant seed and annual sedge weed, and it is effective to numerous broad leaved weeds, and the lasting period is long.Meanwhile it can also prevent and kill off rice The anti-bensulfuron-methyl weeds of Tanaka, and there is residual activity to many broad-leaveds and sedge weed and barnyard grass etc., it is used for current rice field The most wide kind of herbicide controlling spectrum in herbicide.Direct-sowing dry field, direct-sowing rice, rice seedling bed and rice transplanting, rice transplanting cultivation suitable for rice Field.Before direct-sowing dry Tian Yuya or after pouring water, direct-sowing rice is applied in early days after seedling；Then 5~7d dispensers after rice transplanting are cultivated in rice transplanting. Insecticide-applying way can be used spraying or mix native processing.Lasting period is up to 30~60d, and a drug can control full season weeds to endanger substantially Evil.

By literature search, at present it is not yet found that (R) -2- [4- (chloro- 1, the 3- benzoxazoles -2- oxygroups of 6-) phenoxy group] - The relevant report of N, N- dicyano methyl propanamide and penoxsuam compounding.Inventor by a large amount of formula indoor screening and Field control effectiveness test is found (R) -2- [4- (6- chloro- 1,3- benzoxazole -2- oxygroups) phenoxy group]-N, N- dicyan ylmethyls After propionamide and penoxsuam are compounded in a certain range, to rice terrace, annual and perennial weeds have apparent Synergistic effect can expand control of weeds spectrum, reduce use cost, delaying drug resistance, to crop safety height.

Invention content

The purpose of the present invention is to provide a kind of component is reasonable, synergistic effect is notable, and herbicidal effect is good, and control of weeds spectrum expands Greatly, drug cost is low, energy delaying drug resistance, and to the Herbicidal combinations of rice safety.

Another object of the present invention is to provide a kind of Herbicidal combinations preparation formulation.

It is still another object of the present invention to provide above-mentioned composition on the annual and perennial weeds of rice terrace are prevented and kill off Using.

The defects of in order to overcome existing single formulation, the technical scheme is that solve in this way, a kind of rice terrace removes Careless composition, which is characterized in that including：

A）Active constituent (A)：(R) -2- [4- (the chloro- 1,3- benzoxazoles -2- oxygroups of 6-) phenoxy group]-N, N- dicyano methyl-props Amide；

B）Active constituent (B)：Penoxsuam；

The weight ratio of active constituent (A) and active constituent (B) is 1:90-90:1, preferably 1:50-50:1, most preferably 1:30- 30:1。

The preparation that a kind of Herbicidal combinations of the present invention can be prepared according to the method well known to those skilled in the art of the present technique Dosage form is missible oil, wettable powder, water dispersible granules, aqueous emulsion, microemulsion, aqueous suspension agent, dispersible oil-suspending agent.

To missible oil, workable auxiliary agent has：Emulsifier such as calcium dodecyl benzene sulfonate（Agriculture breast 500#）, Nongru-700 #, agriculture Breast 2201, this disk -60#, emulsifier T-60（Common name：Anhydrous sorbitol single-hard ester acid ester polyoxyethylene ether）、TX-10（It is general Name：Octylphenol polyethylene ethylene oxide（10）Ether）, agriculture breast 1601#, agriculture breast 600#, agriculture breast 400#；Solvent such as dimethylbenzene, solvent naphtha（S- 150、S-180、S-200）, toluene, biodiesel, methylated vegetable oil, N-Methyl pyrrolidone；Cosolvent such as ethyl acetate, Methanol, dimethylformamide, cyclohexanone, acetone, methyl ethyl ketone；Stabilizer such as triphenyl phosphite, epoxychloropropane, aceticanhydride.

To wettable powder, workable auxiliary agent has：Dispersant such as polycarboxylate, lignosulfonates, polyoxyethylene gather Oxypropylene group ether block copolymers, alkyl naphthalene formaldehyde condensate sulfonates, alkylphenol-polyethenoxy base ether phosphate, poly alkyl alcohol It is one or more in ethylene oxide ether phosphate, alkylphenol-polyethenoxy base ether sulfonate；Wetting agent such as alkyl sulfate, alkyl sulphur It is one or more in hydrochlorate, naphthalene sulfonate；Filler for example ammonium sulfate, urea, sucrose, glucose, diatomite, kaolin, white carbon, Fine particle calcium carbonate, talcum powder, attapulgite, clay are one or more.

To water dispersible granules, workable auxiliary agent has：Dispersant such as polycarboxylate, lignosulfonates, alkyl naphthalene sulfonic acid It is one or more in salt；It is one or more in wetting agent such as alkyl sulfate, alkylsulfonate, naphthalene sulfonate；Disintegrant such as sulphur It is one or more in sour ammonium, sodium sulphate, polyvinylpyrrolidone, starch and its derivative, bentonite；Binding agent such as starch, Portugal Grape sugar, polyvinyl alcohol（PVA）, it is polyethylene glycol, sodium carboxymethylcellulose, one or more in sucrose；Filler such as diatomite, height Ridge soil, white carbon, fine particle calcium carbonate, talcum powder, attapulgite, clay are one or more.

To aqueous emulsion, workable auxiliary agent has：Emulsifier such as Nonyl pheno（EO=10）Ether phosphate, triphen second Base phenol polyoxyethylene phosphonate, Nongru-700 #（Common name：Alkyl phenol formaldehyde resin polyoxyethylene ether）, agriculture breast 2201#, this Disk -60#（Common name：Span60）, Tween-60 #（Common name：Polyoxyethylene sorbitan stearic acid Ester）、TX-10（Common name：Octylphenol polyethylene ethylene oxide（10）Ether）, agriculture breast 1601（Common name：Triphenoethyl benzene phenol polyoxypropylene gathers Ethylene oxide block polymer）, it is agriculture breast 600#, one or more in agriculture breast 400#；Solvent such as dimethylbenzene, toluene, cyclohexanone, solvent Oil（The trade mark：S-150、S-180、S-200）It is one or more；Stabilizer such as triphenyl phosphite, epoxychloropropane, epoxy soybean It is one or more in oil；It is one or more in antifreezing agent such as ethylene glycol, propylene glycol, glycerine, urea, inorganic salts such as sodium chloride； It is one or more in thickener such as xanthans, polyvinyl alcohol, bentonite, aluminium-magnesium silicate；Preservative such as formaldehyde, benzoic acid, benzene first It is one or more in sour sodium；Water is deionized water.

To microemulsion, workable auxiliary agent has：Emulsifier such as calcium dodecyl benzene sulfonate（Agriculture breast 500#）, Nongru-700 #, Agriculture breast 2201, this disk-60#, polysorbate60-#, TX-10, agriculture breast 1601（Common name：Phenethyl phenol polyoxyethylene polyoxypropylene Ether）, agriculture breast 600#, agriculture breast 400#；Assistant for emulsifying agent such as methanol, isopropanol, n-butanol, ethyl alcohol；Solvent such as cyclohexanone, N- methyl pyrroles Pyrrolidone, dimethylbenzene, toluene, solvent naphtha（The trade mark：S-150、S-180、S-200）；Stabilizer such as triphenyl phosphite, epoxy chlorine Propane；Water is deionized water.

To aqueous suspension agent, workable auxiliary agent has：Emulsifier such as calcium dodecyl benzene sulfonate（Agriculture breast 500#）, agriculture breast 700#, agriculture breast 2201, this disk -60#, emulsifier T-60（Common name：Anhydrous sorbitol single-hard ester acid ester polyoxyethylene ether）、TX- 10（Common name：Octylphenol polyethylene ethylene oxide（10）Ether）, agriculture breast 1601#, agriculture breast 600#, agriculture breast 400#；Dispersant such as polycarboxylate, It is one or more in lignosulfonates, alkylnaphthalene sulfonate；Wetting agent such as alkyl sulfate, alkylsulfonate, naphthalene sulfonic acids It is one or more in salt；It is a kind of or more in antifreezing agent such as ethylene glycol, propylene glycol, glycerine, urea, inorganic salts such as sodium chloride Kind；It is one or more in thickener such as white carbon, polyvinyl alcohol, bentonite, aluminium-magnesium silicate；Antifoaming agent is as such as silicone oil, silicone It is one or more in compound, C10-20 saturated fat acid compounds, C8-10 aliphatic alcohols, hexanol, butanol, octanol；It collapses It solves one or more in agent such as ammonium sulfate, urea, sucrose, glucose；Stabilizer such as triphenyl phosphite, epoxychloropropane, vinegar Acid anhydride.

To dispersible oil-suspending agent, workable auxiliary agent has：Dispersant such as polycarboxylate, lignosulfonates, alkylnaphthalene Sulfonate（Dispersing agent NNO）、TERSPERSE 2020（Huntsman Corporation of U.S. HUNTSMAN produces, alkyl naphthalene sulfonic acid salt）In It is one or more；Emulsifier such as BY（Castor oil polyoxyethylene ether）Serial emulsifier（BY-110、BY-125、BY-140）, agriculture breast 700#（Common name：Alkyl phenol formaldehyde resin polyoxyethylene ether）, agriculture breast 2201, this disk -60#（Common name：Sorbitol anhydride list is stearic Acid esters）, Tween-60 #（Common name：Sorbitan monostearate polyoxyethylene ether）, agriculture breast 1601#（Common name：Phenethyl Phenol polyoxyethylene poly-oxygen propylene aether）、TERSPERSE 4894（Huntsman Corporation of the U.S. produces）In it is one or more；Wetting Agent such as alkylphenol-polyethenoxy base ether formaldehyde condensation products sulfate, alkyl phenol polyoxyethylene ether phosphate, phenethyl phenol polyoxy second Alkenyl ether phosphate, alkyl sulfate, alkylsulfonate, naphthalene sulfonate, TERSPERSE 2500（Huntsman Corporation of the U.S. goes out Product）In it is one or more；It is one or more in thickener such as white carbon, polyvinyl alcohol, bentonite, aluminium-magnesium silicate；Antifreezing agent is such as It is one or more in ethylene glycol, propylene glycol, glycerine, urea, inorganic salts such as sodium chloride；Decentralized medium for example soybean oil, rapeseed oil, Cottonseed oil, rice oil, castor oil, palm oil, epoxidized soybean oil, methyl oleate and its esterification oils, diesel oil, machine oil, mineral In oil and esters solvent such as repefral, dibutyl phthalate, ethyl acetate, methyl benzoate it is a kind of or It is a variety of.

Instant component is reasonable, activity when preventive effect is administered alone better than each component, has synergistic effect, expands weeds and prevents It controls spectrum, reduce spraying times, reduce cost accounting, delaying drug resistance is good to crop safety, and the safety for meeting pesticidal preparations will It asks.The present invention is annual to rice terrace barnyard grass, moleplant seed, lady's-grass, eleusine indica, Monochoria vaginalis, difformed galingale herb, angustifolia arrowhead herb etc. and for many years Raw weeds have significant control effect.

Specific embodiment

Illustrate active constituent (A) below by Toxicity Determination：(R) -2- [4- (the chloro- 1,3- benzoxazoles -2- of 6- Oxygroup) phenoxy group]-N, N- dicyanos methyl propanamide and penoxsuam are compounded to paddy field weed whether having a synergistic effect.

In order to prevent and kill off paddy field weed, we have carried out the synergy of mutual compounding with active constituent (A) and penoxsuam Research, test method reference《People's Republic of China's farm-chemical indoor determinations of agricultural industry criteria NY/T1155.3-2006 Test rule herbicide third portion：Active determination test soil spray-on process》With《People's Republic of China's agricultural industry criteria The 7th part of the farm-chemical indoor determination test rules of NY/T1155.7-2006 herbicide：The synergy of mixture measures》.

Subjects are the annual and perennial weeds of rice terrace：Barnyard grass（Echinochloa crusgalli）, moleplant seed （Leptochloa chinensis）, lady's-grass（Digitaria sanguinalis）, eleusine indica（Eleusine indica）, duck Tongue grass（Monochoria vaginalis）, difformed galingale herb (Cyperus difformis), angustifolia arrowhead herb（Sagittaria trifolia ）.

Experiment uses the content of organic matter to air-dry sandy loam for 2%, pH 6.8, the good sieving of permeability.Selection is easy to train Support, breeding time consistent barnyard grass, moleplant seed, lady's-grass, eleusine indica, Monochoria vaginalis, difformed galingale herb, angustifolia arrowhead herb seed, germination percentage exists More than 80%.Experiment soil is quantitatively filled at the 4/5 of basin alms bowl, using basin alms bowl bottom infiltrating irrigation mode, makes soil complete wetting.It will Weed seed uniform broadcasting carries out soil spraying treatment afterwards for 24 hours in soil surface, earthing 1.0cm, sowing.

Single dose and each Mixed Pharmacy set 5 various concentration gradients（On the basis of pilot study result, matched according to medicament Than difference, concentration gradient setting is also different, prevents and kill off rate and is set in the range of 5%~90% by geometric progression）.If clear water pair According to being repeated 4 times.Weeds are in germination period, carry out spraying treatment respectively from low dosage to high dose.Processing is placed in greenhouse and trains Support observation, the moisturizing in a manner of the bottom infiltrating irrigation of basin alms bowl.

21 days after the processing fresh weight preventive effects for calculating each chemicals treatment, pass through the probit value of preventive effect and the logarithm of series concentration Between linear regression analysis, the ED of each medicament is obtained₅₀ Value calculates the co-toxicity coefficient of mixture with the abundant methods of Sun Yun（CTC）, with this To evaluate activity of the reagent agent to weeds.

The co-toxicity coefficient of complex preparation（CTC）>=120 show as synergistic effect；CTC≤80 show as antagonism；80 ＜ CTC ＜ 120 show as summation action.

1 active constituent of table (A) combines the Toxicity Determination to barnyard grass with penoxsuam

Chemicals treatment	ED50（Ga.i./mu）	ATI	TTI	CTC
					Active constituent（A）	4.32	100.00	-	-
Penoxsuam（B）	18.67	23.14	-	-
					A:B=1:110	16.78	25.74	23.83	108.0
A:B=1:100	15.69	27.53	23.90	115.2
					A:B=1:90	14.21	30.40	23.98	126.8
A:B=1:80	13.36	32.34	24.09	134.2
					A:B=1:70	12.87	33.57	24.22	138.6
A:B=1:60	12.65	34.15	24.40	140.0
					A:B=1:50	12.13	35.61	24.65	144.5
A:B=1:40	11.65	37.08	25.01	148.2
					A:B=1:30	10.52	41.06	25.62	160.3
A:B=1:20	9.63	44.86	26.80	167.4
					A:B=1:10	9.32	46.35	30.13	153.9
A:B=1:1	4.16	103.85	61.57	168.7
					A:B=10:1	2.98	144.97	93.01	155.9
A:B=20:1	2.87	150.52	96.34	156.2
					A:B=30:1	2.69	160.59	97.52	164.7
A:B=40:1	3.04	142.11	98.13	144.8
					A:B=50:1	3.07	140.72	98.49	142.9
A:B=60:1	3.31	130.51	98.74	132.2
					A:B=70:1	3.15	137.14	98.92	138.6
A:B=80:1	3.26	132.52	99.05	133.8
					A:B=90:1	3.35	128.96	99.16	130.1
A:B=100:1	5.14	84.05	99.24	84.7
					A:B=110:1	4.87	88.71	99.31	89.3

2 active constituent of table (A) combines the Toxicity Determination to moleplant seed with penoxsuam

Chemicals treatment	ED50（Ga.i./mu）	ATI	TTI	CTC
					Active constituent（A）	3.14	100.00	-	-
Penoxsuam（B）	14.25	22.04	-	-
					A:B=1:110	15.26	20.58	22.74	90.5
A:B=1:100	13.49	23.28	22.81	102.1
					A:B=1:90	11.24	27.94	22.89	122.0
A:B=1:80	10.26	30.60	23.00	133.1
					A:B=1:70	10.21	30.75	23.13	132.9
A:B=1:60	10.36	30.31	23.31	130.0
					A:B=1:50	9.35	33.58	23.56	142.5
A:B=1:40	9.46	33.19	23.94	138.7
					A:B=1:30	8.12	38.67	24.55	157.5
A:B=1:20	7.45	42.15	25.75	163.7
					A:B=1:10	6.67	47.08	29.12	161.6
A:B=1:1	3.36	93.45	61.02	153.2
					A:B=10:1	2.13	147.42	92.91	158.7
A:B=20:1	2.03	154.68	96.29	160.6
					A:B=30:1	2.05	153.17	97.49	157.1
A:B=40:1	2.14	146.73	98.10	149.6
					A:B=50:1	2.27	138.33	98.47	140.5
A:B=60:1	2.36	133.05	98.72	134.8
					A:B=70:1	2.34	134.19	98.90	135.7
A:B=80:1	2.34	134.19	99.04	135.5
					A:B=90:1	2.56	122.66	99.14	123.7
A:B=100:1	5.14	61.09	99.23	61.6
					A:B=110:1	4.87	64.48	99.30	64.9

3 active constituent of table (A) combines the Toxicity Determination to lady's-grass with penoxsuam

Chemicals treatment	ED50（Ga.i./mu）	ATI	TTI	CTC
					Active constituent（A）	3.58	100.00	-	-
Penoxsuam（B）	16.69	21.45	-	-
					A:B=1:110	16.59	21.58	22.16	97.4
A:B=1:100	14.62	24.49	22.23	110.2
					A:B=1:90	13.06	27.41	22.31	122.9
A:B=1:80	12.17	29.42	22.42	131.2
					A:B=1:70	12.36	28.96	22.56	128.4
A:B=1:60	11.97	29.91	22.74	131.5
					A:B=1:50	10.52	34.03	22.99	148.0
A:B=1:40	10.46	34.23	23.37	146.5
					A:B=1:30	9.36	38.25	23.98	159.5
A:B=1:20	8.59	41.68	25.19	165.4
					A:B=1:10	7.89	45.37	28.59	158.7
A:B=1:1	3.58	100.00	60.72	164.7
					A:B=10:1	2.54	140.94	92.86	151.8
A:B=20:1	2.36	151.69	96.26	157.6
					A:B=30:1	2.28	157.02	97.47	161.1
A:B=40:1	2.5	143.20	98.08	146.0
					A:B=50:1	2.5	143.20	98.46	145.4
A:B=60:1	2.73	131.14	98.71	132.8
					A:B=70:1	2.65	135.09	98.89	136.6
A:B=80:1	2.74	130.66	99.03	131.9
					A:B=90:1	2.95	121.36	99.14	122.4
A:B=100:1	3.58	100.00	99.22	100.8
					A:B=110:1	3.69	97.02	99.29	97.7

4 active constituent of table (A) combines the Toxicity Determination to eleusine indica with penoxsuam

Chemicals treatment	ED50（Ga.i./mu）	ATI	TTI	CTC
					Active constituent（A）	2.98	100.00	-	-
Penoxsuam（B）	14.87	20.04	-	-
					A:B=1:110	14.25	20.91	20.76	100.7
A:B=1:100	13.26	22.47	20.83	107.9
					A:B=1:90	11.25	26.49	20.92	126.6
A:B=1:80	11.14	26.75	21.03	127.2
					A:B=1:70	10.85	27.47	21.17	129.8
A:B=1:60	9.67	30.82	21.35	144.3
					A:B=1:50	9.65	30.88	21.61	142.9
A:B=1:40	9.26	32.18	21.99	146.3
					A:B=1:30	8.57	34.77	22.62	153.7
A:B=1:20	8.02	37.16	23.85	155.8
					A:B=1:10	6.75	44.15	27.31	161.7
A:B=1:1	3.02	98.68	60.02	164.4
					A:B=10:1	1.87	159.36	92.73	171.9
A:B=20:1	1.89	157.67	96.19	163.9
					A:B=30:1	1.84	161.96	97.42	166.2
A:B=40:1	2.08	143.27	98.05	146.1
					A:B=50:1	2.14	139.25	98.43	141.5
A:B=60:1	2.32	128.45	98.69	130.2
					A:B=70:1	2.31	129.00	98.87	130.5
A:B=80:1	2.36	126.27	99.01	127.5
					A:B=90:1	2.41	123.65	99.12	124.7
A:B=100:1	2.85	104.56	99.21	105.4
					A:B=110:1	3.12	95.51	99.28	96.2

5 active constituent of table (A) combines the Toxicity Determination to Monochoria vaginalis with penoxsuam

Chemicals treatment	ED50（Ga.i./mu）	ATI	TTI	CTC
					Active constituent（A）	3.21	100.00	-	-
Penoxsuam（B）	16.82	19.08	-	-
					A:B=1:110	15.45	20.78	19.81	104.9
A:B=1:100	14.21	22.59	19.89	113.6
					A:B=1:90	12.96	24.77	19.97	124.0
A:B=1:80	12.59	25.50	20.08	127.0
					A:B=1:70	12.04	26.66	20.22	131.8
A:B=1:60	11.58	27.72	20.41	135.8
					A:B=1:50	11.06	29.02	20.67	140.4
A:B=1:40	10.58	30.34	21.06	144.1
					A:B=1:30	9.68	33.16	21.69	152.9
A:B=1:20	9.36	34.29	22.94	149.5
					A:B=1:10	7.48	42.91	26.44	162.3
A:B=1:1	3.26	98.47	59.54	165.4
					A:B=10:1	2.16	148.61	92.64	160.4
A:B=20:1	2.05	156.59	96.15	162.9
					A:B=30:1	2.15	149.30	97.39	153.3
A:B=40:1	2.25	142.67	98.03	145.5
					A:B=50:1	2.29	140.17	98.41	142.4
A:B=60:1	2.34	137.18	98.67	139.0
					A:B=70:1	2.42	132.64	98.86	134.2
A:B=80:1	2.58	124.42	99.00	125.7
					A:B=90:1	2.65	121.13	99.11	122.2
A:B=100:1	3.02	106.29	99.20	107.1
					A:B=110:1	3.14	102.23	99.27	103.0

6 active constituent of table (A) combines the Toxicity Determination to difformed galingale herb with penoxsuam

Chemicals treatment	ED50（Ga.i./mu）	ATI	TTI	CTC
					Active constituent（A）	2.72	100.00	-	-
Penoxsuam（B）	19.17	14.19	-	-
					A:B=1:110	17.46	15.58	14.96	104.1
A:B=1:100	15.89	17.12	15.04	113.8
					A:B=1:90	14.59	18.64	15.13	123.2
A:B=1:80	13.57	20.04	15.25	131.5
					A:B=1:70	13.26	20.51	15.40	133.2
A:B=1:60	12.85	21.17	15.60	135.7
					A:B=1:50	12.12	22.44	15.87	141.4
A:B=1:40	11.63	23.39	16.28	143.6
					A:B=1:30	10.77	25.26	16.96	148.9
A:B=1:20	9.68	28.10	18.28	153.8
					A:B=1:10	7.96	34.17	21.99	155.4
A:B=1:1	2.85	95.44	57.09	167.2
					A:B=10:1	1.85	147.03	92.20	159.5
A:B=20:1	1.68	161.90	95.91	168.8
					A:B=30:1	1.82	149.45	97.23	153.7
A:B=40:1	1.89	143.92	97.91	147.0
					A:B=50:1	1.93	140.93	98.32	143.3
A:B=60:1	1.99	136.68	98.59	138.6
					A:B=70:1	2.06	132.04	98.79	133.7
A:B=80:1	2.14	127.10	98.94	128.5
					A:B=90:1	2.25	120.89	99.06	122.0
A:B=100:1	2.35	115.74	99.15	116.7
					A:B=110:1	2.46	110.57	99.23	111.4

7 active constituent of table (A) combines the Toxicity Determination to angustifolia arrowhead herb with penoxsuam

Chemicals treatment	ED50（Ga.i./mu）	ATI	TTI	CTC
					Active constituent（A）	3.37	100.00	-	-
Penoxsuam（B）	13.57	24.83	-	-
					A:B=1:110	13.26	25.41	25.51	99.6
A:B=1:100	11.54	29.20	25.58	114.2
					A:B=1:90	10.54	31.97	25.66	124.6
A:B=1:80	10.23	32.94	25.76	127.9
					A:B=1:70	9.64	34.96	25.89	135.0
A:B=1:60	9.56	35.25	26.07	135.2
					A:B=1:50	9.23	36.51	26.31	138.8
A:B=1:40	8.96	37.61	26.67	141.0
					A:B=1:30	8.02	42.02	27.26	154.2
A:B=1:20	7.65	44.05	28.41	155.0
					A:B=1:10	6.36	52.99	31.67	167.3
A:B=1:1	3.27	103.06	62.42	165.1
					A:B=10:1	2.16	156.02	93.17	167.5
A:B=20:1	2.32	145.26	96.42	150.7
					A:B=30:1	2.17	155.30	97.58	159.2
A:B=40:1	2.35	143.40	98.17	146.1
					A:B=50:1	2.39	141.00	98.53	143.1
A:B=60:1	2.54	132.68	98.77	134.3
					A:B=70:1	2.63	128.14	98.94	129.5
A:B=80:1	2.65	127.17	99.07	128.4
					A:B=90:1	2.73	123.44	99.17	124.5
A:B=100:1	2.85	118.25	99.26	119.1
					A:B=110:1	3.34	100.90	99.32	101.6

The Toxicity Determination result shows：(R) -2- [4- (the chloro- 1,3- benzoxazoles -2- oxygroups of 6-) phenoxy group]-N, N- dicyan Ylmethyl propionamide and penoxsuam are using weight ratio as 1：90~90:1 is mixed to barnyard grass, moleplant seed, lady's-grass, eleusine indica, duck Tongue grass, difformed galingale herb, angustifolia arrowhead herb have preferable synergistic effect, weight ratio 1：50~50:When 1, synergistic effect is the most notable.

In order to which the present invention is better described, the content of present invention is described further with reference to embodiment, in formula Percentage is weight percentage, and active constituent (A) is：(R) -2- [4- (the chloro- 1,3- benzoxazoles -2- oxygroups of 6-) benzene oxygen Base]-N, N- dicyano methyl propanamides.

Example of formulations 1

Weigh 22% (A), 18% penoxsuam, 8% Nongru-700 #, 5% agriculture breast, 2201,5% this disk -60#, 3% methanol, 2% epoxy chlorine Propane, dimethylbenzene add to 100% parts by weight.40% (A) penoxsuam is made through mixing, stirring and dissolving in above-mentioned raw materials afterwards completely Missible oil.

Example of formulations 2

14% (A), 14% penoxsuam, 6% agriculture breast 500#, 8% Nongru-700 #, 2% cyclohexanone, 2% aceticanhydride are weighed, biodiesel adds To 100% parts by weight.28% (A) penoxsuam missible oil is made through mixing, stirring and dissolving in above-mentioned raw materials afterwards completely.

Example of formulations 3

Weigh 18% (A), 22% penoxsuam, 4% calcium lignosulfonate, 4% alkylphenol-polyethenoxy base ether sulfonate, 4% 12 Sodium alkyl sulfate, 3% fine particle calcium carbonate, white carbon add to 100% parts by weight.40% (A) is made through mixing in above-mentioned raw materials after air-flow crushing Penoxsuam wettable powder.

Example of formulations 4

Weigh 22% (A), 16% penoxsuam, 5% aliphatic alcohol polyoxyvinethene phosphate, 4% alkylphenol-polyethenoxy base ether phosphorus Acid esters, 2% sodium alkyl sulfonate, 5% fine particle calcium carbonate, talcum powder add to 100% parts by weight.Above-mentioned raw materials are made through mixing after air-flow crushing 38% (A) penoxsuam wettable powder.

Example of formulations 5

Weigh 28% (A), 12% penoxsuam, 4% sodium lignin sulfonate, 6% Negel, 1% Nekal BX（Dibutyl Sodium naphthalene sulfonate）, 2% sodium alkyl sulfonate, 1% sodium carboxymethylcellulose, kaolin adds to 100% parts by weight.The frequent regulation of above-mentioned raw materials The method of water intaking dispersible granule i.e. mixing, ultra micro air-flow crushing, mixing, granulation step produces 40% (A) penoxsuam moisture Shot agent.

Example of formulations 6

Weigh 10% (A), 25% penoxsuam, 4% polycarboxylate GY-D06,6% sodium lignin sulfonate, 3% sodium naphthalene sulfonate, 2%K- 12（Lauryl sodium sulfate）, 3% sodium sulphate, 5% sulphur ammonium, clay adds to 100% parts by weight.The frequent regulation water intaking point of above-mentioned raw materials The method of shot agent i.e. mixing, ultra micro air-flow crushing, mixing, granulation step produces 35% (A) penoxsuam water-dispersible grain Agent.

Example of formulations 7

Weigh 10% (A), 20% penoxsuam, 6% Tween-60 #, 1.5% cyclohexanone, 2% epoxychloropropane, 2% ethylene glycol, 5% silicon Sour magnalium, 0.2% benzoic acid, deionized water add to 100% parts by weight.Above-mentioned raw materials are uniformly mixed, and 30% is made after high-speed stirred (A) penoxsuam aqueous emulsion.

Example of formulations 8

Weigh 12% (A), 16% penoxsuam, 8% Nongru-700 #, 2% toluene, 1% epoxidized soybean oil, 3% glycerine, 4% bentonite, 0.5% sodium benzoate, deionized water add to 100% parts by weight.Above-mentioned raw materials are uniformly mixed, and 28% (A) five is made after high-speed stirred Penoxsulam aqueous emulsion.

Example of formulations 9

Weigh 14% (A), 18% penoxsuam, 10% Nongru-700 #, 4% calcium dodecyl benzene sulfonate, 3% ethyl alcohol, 2% solvent naphtha S- 150th, 1% epoxychloropropane, deionized water add to 100% parts by weight.32% (A) five fluorine is made after the agitated mixing of above-mentioned raw materials Sulphur grass amine microemulsion.

Example of formulations 10

Weigh 10% (A), 14% penoxsuam, 6% agriculture breast 600#, 8% agriculture breast 2201,3% isopropanol, 3% toluene, 1.2% epoxy chlorine Propane, deionized water add to 100% parts by weight.24% (A) penoxsuam microemulsion is made after the agitated mixing of above-mentioned raw materials.

Example of formulations 11

Weigh 16% (A), 6% penoxsuam, 5% Nongru-700 #, 2% sodium polycarboxylate, 2% sodium naphthalene sulfonate, 2%, propylene glycol, 3% poly- second Enol, 0.5% octanol, 1% sucrose, 2% aceticanhydride, deionized water add to 100% parts by weight.Above-mentioned raw materials mixing after through high speed shear, It is sanded in the sand mill of desert, high dispersive, the suspension system of stabilization is formed in aqueous dispersion, 22% (A) penoxsuam is made Aqueous suspension agent.

Example of formulations 12

Weigh 12% (A), 8% penoxsuam, 2% agriculture breast 2201,4% sodium polycarboxylate, 1% sodium naphthalene sulfonate, 3% ethylene glycol, 3% swelling Soil, 0.8% butanol, 2% ammonium sulfate, 1% epoxychloropropane, deionized water add to 100% parts by weight.Through at a high speed after above-mentioned raw materials mixing It is sanded in shearing, desert sand mill, high dispersive, the suspension system of stabilization is formed in aqueous dispersion, 20% (A) five fluorine is made Sulphur grass aqueous amine suspending agent.

Example of formulations 13

Weigh 14% (A), 10% penoxsuam, 4%TERSPERSE 2020（Huntsman Corporation of the U.S. produces）, 4% this disk -60#, 3% agriculture breast 1601#, 8% agriculture breast 2201#, 1% alkyl phenol polyoxyethylene ether phosphate, 2% white carbon, 5% propylene glycol, small wheat oil add to 100% parts by weight.24% (A) five fluorine sulphur is made through mixing, high speed shear dispersion 30min in above-mentioned raw materials after being sanded with sand mill The careless dispersible oil-suspending agent of amine.

Example of formulations 14

Weigh 12% (A), 4% penoxsuam, 6% agriculture breast 1601#, 3% this disk -60#, 5%TERSPERSE 4894（U.S.'s Hensel The company of stepping produces）, 4% agriculture breast 2201#, 1% alkyl phenol polyoxyethylene ether phosphate, 1% aluminium-magnesium silicate, 5% ethylene glycol, castor oil adds To 100% parts by weight.16% (A) five fluorine is made through mixing, high speed shear dispersion 30min in above-mentioned raw materials after being sanded with sand mill The dispersible oil-suspending agent of sulphur grass amine.

Biological Examples 1：Prevent paddy field weed field control effectiveness test.

Inventor has carried out example of formulations 1 in 2017 in Junichiro Koizumi village of xiangtan, hunan province county（40% (A) penoxsulam Amine missible oil）, example of formulations 3（40% (A) penoxsuam wettable powder）, example of formulations 5（40% (A) five fluorine sulphur Careless aqueous amine dispersible granule）, example of formulations 7（30% (A) penoxsuam aqueous emulsion）, example of formulations 9（32% (A) five Penoxsulam microemulsion）, example of formulations 11（22% (A) penoxsuam aqueous suspension agent）, example of formulations 13（24% (A) the dispersible oil-suspending agent of penoxsuam）Paddy field weed field control effectiveness test is prevented, demonstrates the medicament to rice terrace The control effect of weeds and the safety to rice.

Trial crops are rice, and controlling object is the annual and perennial weeds of rice terrace：Barnyard grass（Echinochloa crusgalli）, moleplant seed（Leptochloa chinensis）, lady's-grass（Digitaria sanguinalis）, eleusine indica （Eleusine indica）, Monochoria vaginalis（Monochoria vaginalis）, difformed galingale herb (Cyperus difformis), it is wild Arrowhead（Sagittaria trifolia ）, 3 days after rice is broadcast during dispenser, in 1 heart stage of 1 leaf, weeds are in germination period.Experiment Field gesture is flat, and soil fertility is medium, pH value 7.1.Test medicine and dosage refer to table 8.Blank control separately is set, often processing repeats 4 times, per 30 ㎡ of cell, the random district's groups arrangement of cell.Using conventional spray-on process, mu dispenser liquid 45kg.

Each processing weeds strain preventive effect of 30d investigation after medicine.Investigation method is to investigate per cell at 2 points, every 0.25m²（0.5m× 0.5m）.Drug effect computational methods are：

Wherein：CK is the careless number of blank district work（Or fresh weight）；PT is the careless number for the treatment of region remaining（Or fresh weight）.

Table 8 prevents paddy field weed field control effectiveness test strain preventive effect

Table of field test results are bright, and more than example of formulations dosage is 2 g a.i./mu, annual and perennial to rice terrace Weeds have a good control effect, after medicine the average preventive effect of 30 days be significantly better than that 20% (A) suspending agent, 10 g a.i./mu, The preventive effect of 25g/L penoxsuam missible oil 2g a.i./mu.By to 30 days significance difference analysis after medicine, compounded combination and its Its single dose processing preventive effect otherness is notable.

Security survey：Safety of each processing of 7d, 15d range estimation to rice seedlings after medicine.Observation result is, all to supply reagent The poisoning phenomenons such as paddy growth safety, no chlorisis, dwarfing occur for agent.

In conclusion the composition of the present invention is using two kinds of active components compound scheme, activity and herbicidal effect are not It is the simple superposition of each component activity, compared with existing single formulation, in addition to significant herbicidal effect, and has significantly Synergistic effect, preparation less residue is pollution-free to crop, and safety is good, meets the security requirement of pesticidal preparations.

Claims (5)

1. a kind of Herbicidal composition for rice field, it is characterised in that：By the first active constituent (R) -2- [4- (chloro- 1,3- Ben Bing Evil of 6- Azoles -2- oxygroups) phenoxy group]-N, N- dicyanos methyl propanamide and the second active constituent penoxsuam and auxiliary agent composition, first The weight ratio of active constituent and the second active constituent is 1:90~90:1.

2. Herbicidal composition for rice field according to claim 1, it is characterised in that：First active constituent and the second active constituent Weight ratio be 1:50~50:1.

3. Herbicidal composition for rice field according to claim 1, it is characterised in that：First active constituent and the second active constituent Weight ratio be 1:30~30:1.

4. Herbicidal composition for rice field according to claim 1, it is characterised in that：The combination dosage form is missible oil, wettable Property pulvis, water dispersible granules, aqueous emulsion, microemulsion, aqueous suspension agent, dispersible oil-suspending agent.

5. Herbicidal composition for rice field answering on the prevention annual and perennial weeds of rice terrace according to claim 1 With.