CN106857528A - A kind of herbicide composition for paddy fields - Google Patents
A kind of herbicide composition for paddy fields Download PDFInfo
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- CN106857528A CN106857528A CN201611267710.6A CN201611267710A CN106857528A CN 106857528 A CN106857528 A CN 106857528A CN 201611267710 A CN201611267710 A CN 201611267710A CN 106857528 A CN106857528 A CN 106857528A
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- mcp
- mcpa
- methoxone
- cyhalofop
- butyl
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
- A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
- A01N39/04—Aryloxy-acetic acids; Derivatives thereof
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- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
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Abstract
The present invention relates to a kind of herbicidal composition, more particularly to a kind of herbicidal composition for preventing and kill off paddy field weed with chlorine fluorine pyridine ester, cyhalofop-butyl and MCPA,MCP,methoxone as active component, the weight ratio of active component chlorine fluorine pyridine ester, cyhalofop-butyl and MCPA,MCP,methoxone is (0.5 8) in said composition:(1.5‑24):(9 144), active component percentage composition in the composition is 10~90%.This complex weedicide can be prepared into water dispersible granules, wettable powder, dispersible the regular dosage forms such as oil-suspending agent, herbicidal composition of the present invention can simultaneously prevent and kill off various weeds in rice terrace, significantly improve the preventive effect to paddy field weed, effective ingredient consumption is few, use cost is low, it is a kind of preferable herbicide to paddy rice and succession crop safety.
Description
【Technical field】
The present invention relates to a kind of herbicide composition for paddy fields, and in particular to it is a kind of with chlorine fluorine pyridine ester, cyhalofop-butyl and
MCPA,MCP,methoxone is the herbicidal composition that active component is used to prevent and kill off paddy field weed.
【Background technology】
In recent years because rice direct seeding field area constantly expands, the weeds such as barnyard grass, moleplant seed radix is caused to increase, crop smothering hair
It is raw serious.The use of chemical herbicide can not only save large quantities of labours, raise labour productivity, and can remove a large amount of
Machinery is difficult to weeds between the seedling removed.The research and application of chemical herbicide are increasingly valued by people, chemical herbicide
Sales volume in pesticide producing amount proportion increase year by year, the area using herbicide is also constantly expanding.Current paddy rice
The herbicide of field weeding large usage quantity has butachlor, bensulfuron-methyl, dichloro quinolinic acid etc., has used 20~30 years, weeds
Increasing year by year, peasant's resistance has to increase the consumption of pesticide control, and such as 50% dichloro quinolinic acid mu consumption is by 30~40 grams
70~80 grams are risen to, it is also undesirable that some direct sowing rice fields use 100 grams of effects.Many rice agricultures are tormented by weeds and are afraid of, it is desirable to
There can be an individual substitute species, therefore Corporation R ＆ D is new, efficient paddy chemical weeding agent is necessary.
Chlorine fluorine pyridine ester (Florpyrauxifen-benzyl), other titles：Ling Sike, Rinskor, chemical name：4-
The chloro- 6- of amino -3- (the chloro- 3- methoxyphenyls of the fluoro- 4- of 2-) -5- fluorine pyridine-2-carboxylic acids benzene methyls, structural formula is：
Chlorine fluorine pyridine ester is Tao benefit agriculture after the 2nd aromatic radical pyridine carboxylic acid esters weeding developed after fluorine chloropyridine ester
Agent, belongs to growth regulator class herbicide, compared with other growth regulator class herbicides, the herbicide consumption, herbicide controlling spectrum,
The characteristics of aspects such as weeds poisoning symptom, Environmental Toxicological, the mechanism of action suffer from novelty, its mechanism of action and fluorine chloropyridine ester phase
Together, the resistance problem of known various herbicides can be solved.Chlorine fluorine pyridine ester has absorbability, can be inhaled by blade and root
Receive, conducted through xylem and bast and be accumulated in the separate living tissue of weeds, so as to play activity of weeding, be mainly used in rice terrace
Weeding, it is effective to rice terrace part grass family, broad-leaved and sedge weed.But, chlorine fluorine pyridine ester is used alone and still cannot
Prevent and kill off all weeds of rice field.
Cyhalofop-butyl (Cyhalofop-butyl), other titles：A thousand pieces of gold, chemical name：(R) -2- [4- (4- cyano group -2-
Fluorophenoxy) phenoxy group] butyl propionate, structural formula is：
Cyhalofop-butyl is a kind of efficient selective inner-adsorption conduction-type herbicide developed by Tao benefit agriculture, at cauline leaf
Reason, can be absorbed by the stem of plant, leaf, conduct to growing point and separate living tissue, be made by the suppression to acetyl-CoA carboxylase
The aliphatic acid synthesis of weeds stopped, and the growth of cell division can not be normally carried out, and it is dead to ultimately result in weeds, by several days of medicine weeds
Inside stop growing, it is later gradually withered.Be mainly used in rice terrace prevent and kill off important grassy weed for example barnyard grass, moleplant seed, lady's-grass,
Green bristlegrass, eleusine indica etc., it is invalid to Cyperaceae and broad leaved weed.
MCPA,MCP,methoxone (Chipton), other titles：MCPA, chemical name：(chloro- 2 methylphenoxies of 4-) acetic acid or 2- first
Base -4-chlorophenoxyacetic acid, structural formula is：
MCPA,MCP,methoxone is phenoxy acetic acid class selectivity hormone like herbicide, is a kind of artificial synthesized plant hormone, is had
The physiological effect similar to auxin, medicine passes through root, stem, the leaf absorption of plant, and sensitive plant occurs hormone-type after receiving medicine
Poisoning symptom, can destroy the conducting tissue of dicotyledon, and making to grow is interfered, and cauline leaf distortion, basal part of stem expands
It is thicker or cracking, be mainly used in paddy rice, wheat, seeding corn and other crops field or in noncrop area after seedling prevent and kill off difformed galingale herb, Monochoria vaginalis,
The part broad-leaved such as water amaranth, angustifolia arrowhead herb, flat stalk Fischer grass or sedge weed, invalid to grassy weed, the pharmacy security is poor,
Improper use is easy to produce poisoning to crop.
In order to make up each single dose of above deficiency in actual use, people generally by any of the above single dose respectively with
Other herbicides are used in mixed way, for example：
Patent CN200910034131.0 discloses the composition of cyhalofop-butyl and MCPA,MCP,methoxone compounding, but it has been reported that
Cyhalofop-butyl can produce antagonism with MCPA,MCP,methoxone compounding, show as the preventive effect reduction of cyhalofop-butyl；
Patent CN201380049127.6 discloses chlorine fluorine pyridine ester and can be compounded with MCPA,MCP,methoxone, but said composition pair
The preventive effect of part grassy weed is bad；
Patent CN201380049466.4 discloses the composition of chlorine fluorine pyridine ester and cyhalofop-butyl compounding, but the combination
Thing is undesirable to the preventive effect of part broad leaved weed.
In order to make up each single dose of the above and report the deficiency that complex preparation exists in actual use, the present inventor
Further investigate, had been surprisingly found that on the basis of the screening of substantial amounts of formula indoor and field control effectiveness test, will not same-action machine
The chlorine fluorine pyridine ester of reason is compounded with cyhalofop-butyl and MCPA,MCP,methoxone in certain ratio range, can both make up chlorine fluorine pyridine ester,
The deficiency that cyhalofop-butyl and MCPA,MCP,methoxone are compounded two-by-two, can reduce the poisoning risk of MCPA,MCP,methoxone again.Solve herbicide alone
In herbicide controlling spectrum, preventive effect and limitation present on security, the mesh for expanding herbicide controlling spectrum, improving preventive effect, improve security has been reached
's.At present it is not yet found that the report compounded on chlorine fluorine pyridine ester and cyhalofop-butyl and MCPA,MCP,methoxone three.
【The content of the invention】
It is an object of the invention to the present situation according to current herbicide for paddy field, and paddy field weed a situation arises,
There is provided a kind of broad weed-killing spectrum, herbicidal effect it is good, using safety, be conducive to the herbicidal composition of the paddy field weed comprehensive regulation.
Present invention employs following technical scheme：A kind of herbicide composition for paddy fields, containing tri- kinds of activity of A, B and C into
Point, wherein active components A is chlorine fluorine pyridine ester, and active component B is cyhalofop-butyl, and active component C is MCPA,MCP,methoxone.
Specifically, the weight ratio of active components A, B and C is in the herbicidal composition：(0.5-8):(1.5-24):
(9-144), preferably：(0.5-4):(1.5-12):(9-72), more preferably：(0.75-3.5):(2-11):(13-
63), still more preferably for：(1-3.5):(3-11):(13-54), optimum weight ratio is：2:6:36.
Present invention also offers the preparation containing above-mentioned composition, the weight percentage of active ingredient is in the preparation
10-90%.
The preparation is any one formulation for agriculturally allowing, preferably water dispersible granules, wettable powder, dispersible oil
The various formulations of the suitable agricultural use such as suspending agent, more preferably water dispersible granules.
When water dispersible granules are configured to, can used additives include：
It is embedding that dispersant is selected from polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate, APES, EO/PO
One or more in section polyethers or APES sulfonate etc.；
Wetting agent is selected from alkyl sulfate, naphthalene sulfonate, aliphatic alcohol sulfate, dodecyl benzene sulfonate, dodecyl
One or more in sodium sulphate, AEO or alkylsulfonate etc.；
Disintegrant is selected from ammonium sulfate, sodium sulphate, sodium chloride, ammonium chloride, urea, cornstarch and its derivative, low substitution
One or more in hydroxypropyl cellulose, polyvinylpyrrolidone or sodium alginate etc.；
Adhesive is selected from hydroxyethyl cellulose, soluble starch, polyethylene glycol, methylcellulose, dextrin, fructose or poly- second
One or more in enol etc.；
Carrier is selected from white carbon, kaolin, bentonite, diatomite, precipitated calcium carbonate, gypsum, attapulgite, urea or sugarcane
One or more in sugar etc..
When wettable powder is configured to, can used additives include：
Dispersant is selected from lignosulfonates, polycarboxylate, alkylnaphthalene sulfonate, neopelex, alkyl and gathers
One or more in oxygen ethene ether sulfonate or alkylphenol-polyethenoxy base ether formaldehyde condensation products etc.；
Wetting agent is selected from lauryl sodium sulfate, Teepol, AEO, Nonyl pheno
One or more in ether or sorbitan fatty acid ester APEO etc.；
Carrier is selected from one or more in kaolin, diatomite, attapulgite, bentonite or white carbon etc..
When being configured to dispersible oil-suspending agent, can used additives include：
Dispersant is selected from methyl naphthalene sulfonic acid salt formaldehyde condensation products, polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate etc.
In one or more；
Wetting agent is selected from APES formaldehyde condensation products sulfat, APES phosphate, alkane
One or more in base sulfate, alkylsulfonate, naphthalene sulfonate etc.；
Emulsifying agent is selected from castor oil polyoxyethylene ether, Nongru-700 #, agriculture breast 2201, anhydrous sorbitol single-hard ester acid ester polyoxy
One or more in vinethene etc.；
Thickener is selected from one or more in bentonite, polyvinyl alcohol, xanthans, aluminium-magnesium silicate etc.；
Defoamer can be organic silicon；
Cosolvent is selected from one or more in methyl alcohol, ethanol, dimethyl sulfoxide (DMSO) etc.；
Decentralized medium is selected from one or more in corn oil, soybean oil, rapeseed oil, methyl oleate etc..
Salt such as polycarboxylate, lignosulfonates etc. described in above-mentioned auxiliary agent are sodium salt or calcium salt.
Herbicidal composition of the present invention is mainly used in rice terrace controlling weeds, compared with prior art with following
Beneficial effect：
(1) three kinds of active components of herbicidal composition of the present invention have complementary advantages, and with synergistic function, consumption is than list
One is low when using, and reduces the adverse effect to environment, and to paddy rice and succession crop safety；
(2) herbicidal composition of the present invention expands herbicide controlling spectrum, and a dispenser can prevent and kill off the various weeds of rice terrace, time saving,
It is saving of labor, laborsaving, greatly reduce cost accounting；
(3) the herbicidal composition mechanism of action of the present invention is unique, can delay the generation of herbicide resistance, miscellaneous so as to delay
The succession speed of careless group.
【Specific embodiment】
In order to make the purpose , technical scheme and advantage of the present invention be clearer, present invention specific examples below
Illustrate, but be only limitted to this absolutely not.As described below is preferably embodiment of the invention, is used only for the description present invention, it is impossible to
Be interpreted as limitation of the present invention, it should be pointed out that be any modification, equivalent made within the spirit and principles in the present invention
Replace and improve, should be included within the scope of the present invention.
Example of formulations 1：44% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules
Weigh 2% chlorine fluorine pyridine ester, 6% cyhalofop-butyl, 36% MCPA,MCP,methoxone, 5% sodium lignin sulfonate, 4% alkyl sulfide
Sour sodium, 1% sodium chloride, 0.5% polyvinyl alcohol, kaolin complement to 100%, be well mixed after, premenstrual mixing, air-flow crushing,
After mix, the kneading that adds water, granulation, screening, obtain 44% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules.
Example of formulations 2：58% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules
Weigh 1% chlorine fluorine pyridine ester, 3% cyhalofop-butyl, 54% MCPA,MCP,methoxone, 4% polycarboxylic acids sodium, 3% fatty alcohol sulphuric acid
Sodium, 2% ammonium sulfate, 0.2% polyethylene glycol, precipitated calcium carbonate complement to 100%, after being well mixed, premenstrual mixing, air-flow powder
It is broken, mix afterwards, the kneading that adds water, granulation, screening, obtain 58% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules.
Example of formulations 3：37% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone wettable powder
Weigh 2% chlorine fluorine pyridine ester, 7% cyhalofop-butyl, 28% MCPA,MCP,methoxone, 6% neopelex, 3% secondary
Sodium alkyl sulfate, kaolin complement to 100%, and after being well mixed, premenstrual mixing, air-flow crushing, rear mixing obtain 37% chlorine fluorine pyrrole
Pyridine ester cyhalofop-butyl MCPA,MCP,methoxone wettable powder.
Example of formulations 4：75% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone wettable powder
Weigh 2% chlorine fluorine pyridine ester, 3% cyhalofop-butyl, 70% MCPA,MCP,methoxone, 8% sodium lignin sulfonate, 2% dodecane
Base sodium sulphate, diatomite complement to 100%, and after being well mixed, premenstrual mixing, air-flow crushing, rear mixing obtain 75% chlorine fluorine pyridine
Ester cyhalofop-butyl MCPA,MCP,methoxone wettable powder.
Example of formulations 5：23% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone dispersibles oil-suspending agent
Weigh 4% chlorine fluorine pyridine ester, 10% cyhalofop-butyl, 9% MCPA,MCP,methoxone, 8% Negel, 5% alkyl sulfide
Sour sodium, 3% agriculture breast 2201#, 0.5% xanthans, 0.05% organic silicon defoamer, 2% dimethyl sulfoxide (DMSO), corn oil are complemented to
100%, after being well mixed, first high speed shear dispersion, then be sanded, obtain final product the 23% chlorine fluorine pyridine ester cyhalofop-butyl
MCPA,MCP,methoxone dispersibles oil-suspending agent.
Example of formulations 6：18% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone dispersibles oil-suspending agent
Weigh 2% chlorine fluorine pyridine ester, 5% cyhalofop-butyl, 11% MCPA,MCP,methoxone, 6% sodium lignin sulfonate, 4% alkyl sulfide
Sour sodium, 2% castor oil polyoxyethylene ether, 0.3% polyvinyl alcohol, 0.1% organic silicon defoamer, 4% methyl alcohol, methyl oleate are mended
Foot to 100%, after being well mixed, disperse, then is sanded by first high speed shear, obtains final product the 18% chlorine fluorine pyridine ester cyanogen fluorine grass
Ester MCPA,MCP,methoxone dispersibles oil-suspending agent.
It is raw to survey embodiment 1：
Chlorine fluorine pyridine ester, cyhalofop-butyl and MCPA,MCP,methoxone compounding synergy measure and Herbicidal experiment
In order to prevent and kill off the paddy field weed in agricultural production, inventor has carried out chlorine fluorine pyridine ester, cyhalofop-butyl and diformazan
The synergistic effect research that tetrachloro is mutually compounded, cauline leaf process are carried out using indoor pot method, test reference《The People's Republic of China (PRC)
Agricultural industry criteria NY/T 1155.7-2006 farm-chemical indoor determinations test rule-herbicide》7th part：The connection of mixture
The Colby methods that cooperation is instructed in determining.
1st, reagent agent
91.4% chlorine fluorine pyridine ester active compound
97.4% cyhalofop-butyl active compound
96% MCPA,MCP,methoxone active compound
2nd, for examination weeds
Cyperus iria, eleusine indica, Monochoria vaginalis
Culture for trying weeds uses potted plant cultivation, with 11 × 12cm plastic tubs, is placed in shallow-water tank, will not make
The soil adopted back in the farmland of used herbicide is air-dried, and basin is filled after sieving, and in basin at dry ground quantitative 4/5, P in soil H values 7.0 have
Machine matter content 1.2%.After soil is moistened completely with basin alms bowl bottom infiltrating irrigation mode, will pre-process and quantitatively spread for examination weed seed
Soil surface is sowed at, according to seed size earthing 0.5cm~1.0cm, 28~32 DEG C/18~25 DEG C of indoor temperature (d/n), relatively
Humidity 75% ± 15%.Using the top irrigation method moisturizing of basin alms bowl in incubation, soil is kept to be sufficiently humidified so as to.Treat that weeds emerge
Weeds are respectively set to 5 plants afterwards.
3rd, experimental design
Experiment sets 41 treatment altogether, wherein chlorine fluorine pyridine ester set 0.5,1,2,4,8g a.i./dosage of mu 5 process, cyanogen fluorine
Careless ester sets 1.5,3,6,12, the 24g a.i./dosage of mu 5 treatment, MCPA,MCP,methoxone sets 9,18,36,72,144g a.i./mu 5
Dosage treatment, chlorine fluorine pyridine ester+cyhalofop-butyl+MCPA,MCP,methoxone three is mixed set up separately 0.5+1.5+9,0.5+3+18,0.5+6+36,
0.5+12+72、0.5+24+144、1+1.5+18、1+3+36、1+6+72、1+12+144、1+24+9、2+1.5+36、2+3+72、2
+6+144、2+12+9、2+24+18、4+1.5+72、4+3+144、4+6+9、4+12+18、4+24+36、8+1.5+144、8+3+9、
The treatment of 25 dosage ratios of 8+6+18,8+12+36,8+24+72g a.i./mu, separately sets an auxiliary agent control, altogether at 41
Reason, is repeated 4 times.
4th, test method
Spray (ASS-4 type pesticide spraying systems, DG8003 shower nozzles, spraying pressure in spray tower is placed in the weeds 3-5 leaf phase
Power 2.75MPa, spouting liquid 30Kg/ mus), observation is cultivated in greenhouse after being placed in after natural air drying.
5th, weedy rices and analysis method
After dispenser, the growth conditions of routine observation weeds, poisoning symptom and poisoning degree record symptom of chemical damage, 21 after medicine
It weighs aerial part fresh weight, calculates weeds survival rate E, and uses the type of action of medicament with using the evaluation of Colby methods, further
Inquire into the reasonability of proportioning.
E=treatment region weeds fresh weight × 100/ check plot weeds fresh weight ... ... ... ... ... (1)
Colby method computing formula：
The weeds survival rate of herbicide A when X --- consumption is P；
The weeds survival rate of herbicide B when Y --- consumption is Q；
The weeds survival rate of herbicide C when Z --- consumption is W；
E0--- the theoretical weeds survival rate of herbicide (A+B+C) when consumption is (P+Q+W)；
E0- E ＞ 10% are synergistic effect；E0- E ＜ -10% are antagonism；E0- E values are summation action between ± 10%.
6th, result and analysis in table 1-3
The actual measurement survival rate and theoretical survival of the chlorine fluorine pyridine ester of table 1, cyhalofop-butyl and MCPA,MCP,methoxone mixture to cyperus iria
Rate
Chlorine fluorine pyridine ester, the cyhalofop-butyl co-toxicity to cyperus iria mixed with MCPA,MCP,methoxone：Chlorine fluorine pyridine ester is to broken
Preferably, cyhalofop-butyl and MCPA,MCP,methoxone are undesirable to the preventive effect of cyperus iria, with chlorine fluorine pyridine ester consumption for the preventive effect of meter Sha Cao
Increase, the preventive effect of cyperus iria is improved after using with.
The actual measurement survival rate and theoretical survival rate of the chlorine fluorine pyridine ester of table 2, cyhalofop-butyl and MCPA,MCP,methoxone mixture to eleusine indica
Chlorine fluorine pyridine ester, the cyhalofop-butyl co-toxicity to eleusine indica mixed with MCPA,MCP,methoxone：Cyhalofop-butyl is to eleusine indica
Preventive effect it is good, chlorine fluorine pyridine ester and MCPA,MCP,methoxone are slightly worse to the preventive effect of eleusine indica, with the increase of cyhalofop-butyl consumption, use with after
Preventive effect to eleusine indica is improved.
The actual measurement survival rate and theoretical survival rate of the chlorine fluorine pyridine ester of table 3, cyhalofop-butyl and MCPA,MCP,methoxone mixture to Monochoria vaginalis
Chlorine fluorine pyridine ester, the cyhalofop-butyl co-toxicity to Monochoria vaginalis mixed with MCPA,MCP,methoxone：MCPA,MCP,methoxone is to Monochoria vaginalis
Preventive effect it is good, chlorine fluorine pyridine ester and cyhalofop-butyl are poor to the effect of Monochoria vaginalis, with the increase of MCPA,MCP,methoxone consumption, use with after it is right
The preventive effect of Monochoria vaginalis is improved.
Toxicity Determination result shows that chlorine fluorine pyridine ester, cyhalofop-butyl and MCPA,MCP,methoxone are in weight ratio (0.5-8):
(1.5-24):Used with the range of (9-144) and weeds are shown as to be added or synergistic effect, in weight ratio (0.5-4):(1.5-
12):Being used with the range of (9-72) has obvious synergistic effect, expands herbicide controlling spectrum, has reached while to prevent and kill off rice terrace main
The purpose of weeds.
It is raw to survey embodiment 2：
Safety testing of chlorine fluorine pyridine ester, cyhalofop-butyl and the MCPA,MCP,methoxone compounding to paddy rice
For the security for studying chlorine fluorine pyridine ester, cyhalofop-butyl and MCPA,MCP,methoxone are mutually compounded, inventor has done following
Experiment, tests reference《People's Republic of China (PRC) agricultural industry criteria NY/T 1155.8-2007 farm-chemical indoor determinations are tested
Criterion-herbicide》8th part：The safety testing cauline leaf spray-on process of crop.
1st, reagent agent
91.4% chlorine fluorine pyridine ester active compound
97.4% cyhalofop-butyl active compound
96% MCPA,MCP,methoxone active compound
2nd, for studying thing
Paddy rice
For studying the culture of thing using greenhouse pot culture method, with 11 × 12cm plastic tubs, it is placed in shallow-water tank, will make
The soil adopted back in the farmland of used herbicide is air-dried, and basin is filled after sieving, and in basin at dry ground quantitative 4/5, P in soil H values 7.0 have
Machine matter content 1.2%.After soil is moistened completely from top-watered, rice paddy seed is quantitatively broadcasted sowing in soil surface, according to kind
Sub- size earthing 0.5cm~2.0cm, 28~32 DEG C/18~25 DEG C of indoor temperature (d/n), relative humidity 75% ± 15%.Culture
During using basin alms bowl top irrigation method moisturizing, keep soil be sufficiently humidified so as to.After after rice seedling, paddy rice is set to 5 plants.
3rd, for examination weeds
Moleplant seed, eleusine indica, Monochoria vaginalis, triquetrousc murdannia herb, flat stalk Fischer grass, cyperus iria
Culture for trying weeds uses greenhouse pot culture method, with 11 × 12cm plastic tubs, is placed in shallow-water tank, will not make
The soil adopted back in the farmland of used herbicide is air-dried, and basin is filled after sieving, and in basin at dry ground quantitative 4/5, P in soil H values 7.0 have
Machine matter content 1.2%.After soil is moistened completely with basin alms bowl bottom infiltrating irrigation mode, will pre-process and quantitatively spread for examination weed seed
Soil surface is sowed at, according to seed size earthing 0.5cm~1.0cm, 28~32 DEG C/18~25 DEG C of indoor temperature (d/n), relatively
Humidity 75% ± 15%.Using the top irrigation method moisturizing of basin alms bowl in incubation, soil is kept to be sufficiently humidified so as to.Treat that weeds emerge
Weeds are respectively set to 5 plants afterwards.
4th, experimental design
Experiment sets 41 treatment altogether, wherein chlorine fluorine pyridine ester set 0.2,0.6,2,6,18g a.i./dosage of mu 5 process,
Cyhalofop-butyl sets 0.7,2,6,18, the 54g a.i./dosage of mu 5 treatment, MCPA,MCP,methoxone sets 4,12,36,108,324g a.i./
5 dosage treatment of mu, chlorine fluorine pyridine ester+cyhalofop-butyl+MCPA,MCP,methoxone three is mixed to set up 0.5+1.5+9,0.5+3+18,0.5+ separately
6+36、0.5+12+72、0.5+24+144、1+1.5+18、1+3+36、1+6+72、1+12+144、1+24+9、2+1.5+36、2+3
+72、2+6+144、2+12+9、2+24+18、4+1.5+72、4+3+144、4+6+9、4+12+18、4+24+36、8+1.5+144、8
+ 3+9, the treatment of 25 dosage ratios of 8+6+18,8+12+36,8+24+72g a.i./mu, separately set an auxiliary agent control, and altogether 41
Individual treatment, is repeated 4 times.
5th, test method
Spray in spray tower (ASS-4 type pesticide spraying systems, DG8003 shower nozzles, spray are put when paddy rice and weeds 3-5 leaf phase
Mist pressure 2.75MPa, spouting liquid 30Kg/ mus), observation is cultivated in greenhouse after being placed in after natural air drying.
6th, crop investigation
After dispenser, investigate each treatment paddy rice whether there is symptom of chemical damage, symptom of chemical damage, grade are recorded in detail if having, 21 after medicine
Each treatment paddy rice fresh weight of its measurement, calculates fresh weight inhibition, with clear and definite test medicine to the security of paddy rice.
The poisoning evaluation index of table 4
| Poisoning is classified | Poisoning degree (%) | Result is described |
| 0 | 0 | Safety, without poisoning |
| 1 | 1~10 | Without obvious poisoning |
| 2 | 11~30 | Slight poisoning |
| 3 | 31~50 | Moderate poisoning |
| 4 | ＞ 50 | Serious poisoning |
7th, weedy rices
The growth conditions of periodical visual inspection observation weeds, poisoning symptom and poisoning degree, record symptom of chemical damage after dispenser.After medicine
The fresh weight preventive effect for each treatment being calculated using growth inhibition assay in 21 days.
Growth inhibition assay computing formula：
In formula：
E-fresh weight preventive effect, unit is percentage (%)；
T0- control weeds aerial part fresh weight, unit for gram；
T1- treatment weeds aerial part fresh weight, unit for gram.
8th, result and analysis：
Table 5 respectively processes the preventive effect to weeds and the poisoning classification to paddy rice
It can be seen from Table 5 that chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone mixture is compared with single dose, in weight ratio
(0.5-8):(1.5-24):In the range of (9-144), preventive effect to rice terrace main weeds and the security to paddy rice are above
Single dose, to rice safety.
In sum, chlorine fluorine pyridine ester has compounded significant synergy and has made within the specific limits with cyhalofop-butyl and MCPA,MCP,methoxone
With to crop safety, complex preparation is not only that rice terrace provides a kind of safe, practical herbicide, and is greatly reduced
Enterprise and the cost of peasant household.
It is raw to survey embodiment 3：
Prevent and kill off paddy field weed field control effectiveness test I：
1st, test process
Test and set 12 treatment, 4 repetitions, totally 48 treatment cells, often process 20 square metres of plot area, random district's groups
Arrangement.(1)~(9) 44% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules be reagent agent, (10)~
(12) 3% chlorine fluorine pyridine emulsifiable concentrates, 10% cyhalofop-butyl missible oil, 56% MCPA,MCP,methoxone soluble powder are comparison medicament.Every mu
30 kilograms are watered, using 552 third type sprayers (0.7mm apertures) even spraying.Field main weeds have moleplant seed, eleusine indica,
Monochoria vaginalis, triquetrousc murdannia herb, flat stalk Fischer grass, cyperus iria etc..
2nd, pilot project and method
(1) security：After dispenser, the situation of growing of paddy rice is investigated, evaluate security of the reagent agent to paddy rice.
(2) herbicidal effect：Random per cell to take at 4 points, every is investigated 1/4 square metre, investigation weed control in 30 days after dispenser
Effect, records weeds species and strain number respectively, calculates weeds strain preventive effect.
(3) result of the test
Security：Investigated after dispenser, (1)~(9) chemicals treatment districts Plant Height of Rice, leaf color and blank district basic
Cause, and (10)~(12) treatment region paddy rice to show leaf chlorosis, plant strain growth suppressed, rice seedling height is uneven to wait poisoning disease
Shape, shows that the chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules of reagent agent (1)~(9) 44% are pacified to paddy rice
Entirely.
Herbicidal effect, is shown in Table 6：
The chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules of table 6 44% prevent and kill off effect to paddy field weed
Really
Note：(1) 44% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules (0.5:1.5:72)
(2) 44% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules (0.75:2:63)
(3) 44% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules (1:3:54)
(4) 44% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules (1.5:4.5:45)
(5) 44% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules (2:6:36)
(6) 44% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules (2.5:7.5:27)
(7) 44% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules (3:9:18)
(8) 44% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules (3.5:11:13)
(9) 44% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules (4:12:9)
(10) 3% chlorine fluorine pyridine emulsifiable concentrates
(11) 10% cyhalofop-butyl missible oils
(12) 56% MCPA,MCP,methoxone soluble powders
(13) blank
As shown in Table 6,44% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules of different ratio are to normal
See that weeds strain preventive effect between 87.05%~97.78%, is superior to the chlorine fluorine pyridine emulsifiable concentrate of comparison medicament 3%, 10% cyanogen fluorine grass
Emulsifiable concentrate, 56% MCPA,MCP,methoxone soluble powder (weeds strain preventive effect is respectively 60.61%, 47.36% and 51.24%).Wherein
Chlorine fluorine pyridine ester, cyhalofop-butyl and MCPA,MCP,methoxone weight ratio are (0.5-4):(1.5-12):It is common to rice terrace miscellaneous when (9-72)
Grass has obvious preventive effect, and weeds strain preventive effect is all more than 87%；Chlorine fluorine pyridine ester, cyhalofop-butyl and MCPA,MCP,methoxone weight ratio are
(0.75-3.5):(2-11):When (13-63) to rice terrace common weed preventive effect preferably, weeds strain preventive effect is all more than 90%；And
Chlorine fluorine pyridine ester, cyhalofop-butyl and MCPA,MCP,methoxone weight ratio are 2:6:Preventive effect is more up to 97.78% when 36.Thus illustrate, chlorine
Fluorine pyridine ester, cyhalofop-butyl and MCPA,MCP,methoxone are in weight ratio (0.5-4):(1.5-12):Compounded in the range of (9-72), to rice terrace
Common weeds have preventive effect, and this herbicidal composition to rice safety.
Prevent and kill off paddy field weed field control effectiveness test II：
1st, test process
(1) 11% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules (2:6:36) 200g/ mus
(2) 44% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules (2:6:36) 50g/ mus
(3) 88% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules (2:6:36) 25g/ mus
Test and set 3 treatment, 4 repetitions, totally 12 treatment cells, often process 20 square metres of plot area, random district's groups
Arrangement.(1)~(3) chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules are reagent agent, and every mu is watered 30 public affairs
Jin, using 552 third type sprayers (0.7mm apertures) even spraying.Field main weeds have moleplant seed, eleusine indica, Monochoria vaginalis, water
The leaf of bamboo, flat stalk Fischer grass, cyperus iria etc..
2nd, pilot project and method
Herbicidal effect：Random per cell to take at 4 points, every is investigated 1/4 square metre, 30 days investigation weed control effects after dispenser
Really, weeds species and strain number are recorded respectively, calculate weeds strain preventive effect.
3rd, result of the test：Herbicidal effect is shown in Table 7
Preventive effect of 30 days chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxones to various weeds after the medicine of table 7
Note：(1) 11% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules (2:6:36)
(2) 44% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules (2:6:36)
(3) 88% chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules (2:6:36)
As shown in Table 7, when the weight ratio of chlorine fluorine pyridine ester, cyhalofop-butyl and MCPA,MCP,methoxone is 2:6:When 36, different content
Chlorine fluorine pyridine ester cyhalofop-butyl MCPA,MCP,methoxone water dispersible granules to common weed strain preventive effect more than 97%, show chlorine
When fluorine pyridine ester, cyhalofop-butyl and MCPA,MCP,methoxone weight ratio are optimal proportion, the herbicidal composition of different activities component content
There is significant preventive effect to paddy field weed.
In sum, rationally, activity when preventive effect is administered alone better than each component is equal to paddy field weed for instant component
There is good preventive effect, expand control of weeds spectrum, delayed the generation of herbicide resistance, to crop safety, meet agricultural chemicals
The security requirement of preparation.
Claims (7)
1. a kind of herbicidal composition, it is characterised in that said composition is made up of tri- kinds of active components of A, B and C, wherein activity into
A is divided to be chlorine fluorine pyridine ester, active component B is cyhalofop-butyl, and active component C is MCPA,MCP,methoxone, the active components A, B and C's
Weight ratio is：（0.5-8）:（1.5-24）:（9-144）.
2. herbicidal composition according to claim 1, it is characterised in that the weight ratio of active components A, B and C is：
（0.5-4）:（1.5-12）:（9-72）.
3. herbicidal composition according to claim 2, it is characterised in that the weight ratio of active components A, B and C is：
（0.75-3.5）:（2-11）:（13-63）.
4. herbicidal composition according to claim 3, it is characterised in that the weight ratio of active components A, B and C is：（1-
3.5）:（3-11）:（13-54）.
5. herbicidal composition according to claim 4, it is characterised in that the weight ratio of active components A, B and C is： 2:
6:36。
6. the herbicidal composition according to any one of claim 1-5, it is characterised in that active component is in herbicide group
Weight percentage in compound is 10-90%.
7. herbicidal composition according to claim 6, it is characterised in that said composition can be appointing of agriculturally allowing
A kind of formulation.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109566618A (en) * | 2019-01-04 | 2019-04-05 | 上海祥霖农业技术有限公司 | A kind of Herbicidal combinations including chlorine fluorine pyridine ester and cyhalofop-butyl |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101653117A (en) * | 2009-08-31 | 2010-02-24 | 江苏辉丰农化股份有限公司 | Cyhalofop-butyl-containing paddy field herbicide composition |
| CN104661524A (en) * | 2012-07-24 | 2015-05-27 | 美国陶氏益农公司 | Herbicidal compositions comprising 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl) pyridine-2-carboxylic acid |
| CN104661522A (en) * | 2012-07-24 | 2015-05-27 | 美国陶氏益农公司 | Herbicidal compositions comprising 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl) pyridine-2-carboxylic acid |
| CN106106456A (en) * | 2016-06-28 | 2016-11-16 | 北京燕化永乐生物科技股份有限公司 | A kind of Herbicidal combinations |
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2016
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101653117A (en) * | 2009-08-31 | 2010-02-24 | 江苏辉丰农化股份有限公司 | Cyhalofop-butyl-containing paddy field herbicide composition |
| CN104661524A (en) * | 2012-07-24 | 2015-05-27 | 美国陶氏益农公司 | Herbicidal compositions comprising 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl) pyridine-2-carboxylic acid |
| CN104661522A (en) * | 2012-07-24 | 2015-05-27 | 美国陶氏益农公司 | Herbicidal compositions comprising 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl) pyridine-2-carboxylic acid |
| CN106106456A (en) * | 2016-06-28 | 2016-11-16 | 北京燕化永乐生物科技股份有限公司 | A kind of Herbicidal combinations |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109566618A (en) * | 2019-01-04 | 2019-04-05 | 上海祥霖农业技术有限公司 | A kind of Herbicidal combinations including chlorine fluorine pyridine ester and cyhalofop-butyl |
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