CN104430465A - Herbicide composition containing clefoxidim - Google Patents
Herbicide composition containing clefoxidim Download PDFInfo
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- CN104430465A CN104430465A CN201410658594.5A CN201410658594A CN104430465A CN 104430465 A CN104430465 A CN 104430465A CN 201410658594 A CN201410658594 A CN 201410658594A CN 104430465 A CN104430465 A CN 104430465A
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- clefoxidim
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- acyl grass
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- DHYXNIKICPUXJI-UHFFFAOYSA-N CC(C)N(C(N(C=NN1c(c(Cl)c2)ccc2Cl)C1=O)=O)c(ccc(F)c1)c1F Chemical compound CC(C)N(C(N(C=NN1c(c(Cl)c2)ccc2Cl)C1=O)=O)c(ccc(F)c1)c1F DHYXNIKICPUXJI-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention belongs to the technical field of pesticides and in particular discloses a paddy field compound herbicide taking ipfencarbazone and clefoxidim as active ingredients. The weight ratio of the two active ingredients is 1:8 to 32:1, and the two active ingredients account for 1-80 mass percent of the compound herbicide. After ipfencarbazone and clefoxidim serving as the active ingredients are compounded, the complementarity between the active ingredients is utilized, a weed control effect is improved, the defect of a single dosage of herbicide is overcome, grassy weeds in a paddy field can be controlled and removed, broadleaf weeds and cyperaceous weeds also can be controlled and removed, and the herbicide has an obvious synergistic effect. The herbicide composition has an obvious weed control effect, is safe to rice, does not influence after-reap crops and is an ideal herbicide.
Description
[technical field]
The invention belongs to technical field of pesticide, being specifically related to a kind of herbicidal composition being active component with triazole acyl grass amine and clefoxidim, for preventing and kill off paddy field weed.
[background technology]
Paddy rice is the main cereal crops of China, along with the expansion of Monitoring of Paddy Rice Plant Area, rice field crop smothering also day by day expands in the production constantly expanded, and harm is day by day serious, the applying of chemical herbicide become save time, saving of labor, cost-saving one of strong well stimulation.Mostly there is herbicide and compose narrow defect in current herbicide for paddy field, can not to the grass family in paddy field, broad-leaved and sedge weed play extraordinary effect simultaneously, and continue to use and the change of paddy field cropping system in the large area of paddy field along with numerous weed killer herbicide kind, the introducing of new varieties, make weed community that significantly change occur, paddy field weed bamboo telegraph also constantly spreads, and some weeds has been found to create resistance, this just needs agricultural chemicals research staff to develop efficiently, the pharmaceutical preparations of safety meets control requirement, weed killer herbicide is rationally composite is improve preventive effect, expand herbicide spectrum, delay the succession speed of weed community, reduce the resistance risk that the single use of agricultural chemicals brings, alleviate the pollution to environment, reduce a kind of effective ways of use cost and reduction herbicide residue, therefore the pesticide mixed preparation of development of new, it is the only way of current Agrochemicals.
Triazole acyl grass amine is that Japanese Hokko Chemical Industry Co., Ltd. is on the basis of weed killer herbicide fentrazamide, with reference to a kind of novel triazolineone weed killer herbicide of the chemical constitution exploitation of herbicide flufenacet etc., be considered to a kind of inhibitor of very-long-chain fatty acid in plant (VLCFAs), work by suppressing the cell division of plant, for preventing and kill off paddy field nutgrass flatsedge, broad-leaved and other annual weed, but to the anti-heterodyne of perennial grassy weed.
Clefoxidim belongs to cyclohexenone analog paddy field broad-spectrum herbicide, it is acetyl-CoA carboxylase (ACCase) inhibitor, absorbed by plant rapidly after foliage application and shift, growing point is transferred to by phloem, the growth of sprouting is suppressed at this, the first chlorosis of weeds, rear variable color is withered, be mainly used in preventing and kill off the grassy weeds such as paddy field barnyard grass, Paspalum distichum, Lan Macao, lady's-grass, moleplant seed, green foxtail, Rottboellia exaltata L. F, agrostis stolonifera, to rice safety, but to broad-leaved and sedge weed preventive effect undesirable.
Existing a lot of bibliographical information crosses the herbicidal composition containing triazole acyl grass amine or clefoxidim, and such as patent CN103717076A provides a kind of containing one or more the desinsection in tetramic acid derivatives and halobenzene amine azoles (triazole acyl grass amine), clefoxidim etc. and other weed killer herbicides/kill the composition of mite and weeding for controlling animal pest or noxious plant; Patent CN102724876A describes the Synergistic herbicidal compositions comprising fluroxypyr and clefoxidim, in order to control unwanted vegetation in paddy field, should can also be co-administered with the less desirable vegetation controlling wider scope with other weed killer herbicides such as ipfencarbazone (triazole acyl grass amine) further containing composition of two kinds of active components, but not yet there is document to be disclosed triazole acyl grass amine and clefoxidim composition composite separately, also support without relevant survey data of giving birth to.
In order to make up above each single dose and report the deficiency that complex preparation exists in actual application, the present inventor furthers investigate, unexpected discovery on the basis of the screening of a large amount of formula indoors and field control effectiveness test, triazole acyl grass amine and clefoxidim composite in certain ratio range, to paddy field weed, there is excellent control efficiency, the preventive effect shown and activity level exceed the superposition of each component, there is unforeseeable synergistic function, solve above two weed killer herbicides to compose in herbicide, the limitation that preventive effect and safety exist, reach and expand herbicide spectrum, improve preventive effect, improve the object of safety.
[summary of the invention]
The object of the present invention is to provide a kind of component reasonable, synergistic effect is remarkable, and herbicidal effect is good, and drug cost is low, not easily develops immunity to drugs, to the herbicidal composition of rice safety.
For realizing object of the present invention, the invention discloses a kind of herbicidal composition, it is made up of a and b two kinds of active components of effective dose.
Wherein, a is triazole acyl grass amine (Ipfencarbazone), other titles: Chinese mugwort point carbazones, halobenzene amine azoles, chemical name: 1-(2,4-dichlorophenyl)-N-(2,4-difluorophenyl)-N-isopropyl-1,5-dihydro-5-oxo-4H-1,2,4-triazole-4-formamide, structural formula is:
B is clefoxidim (Clefoxidim), chemical name: 2-[1-[2-(4-chlorophenoxy) propoxyl group imino group] butyl]-3-hydroxyl-5-(thiophene alkane-3-base) hexamethylene-2-ketenes, and structural formula is:
The weight ratio of described active component a and b is: a triazole acyl grass amine: b clefoxidim=1:8 ~ 32:1, and be preferably 1:2 ~ 8:1, more preferably 2:1, the weight percentage of two active components in herbicidal composition is 1 ~ 80%; The amount of application when content of active component depends on that often kind of component is used alone in herbicidal composition of the present invention, also depends on the ratio of a kind of component and another kind of component and the degree of synergistic effect.
Herbicidal composition of the present invention, except two kinds of active ingredients, can also add carrier, dispersant, wetting agent, adhesive etc. and other contribute to the active ingredient known substance that plays of stable and drug effect in the formulation.
Herbicidal composition of the present invention can be processed into the various formulations of applicable agricultural use, and preferred dosage form is granule, wetting powder etc., more preferably granule.
Granule of the present invention is adjuvant used to be comprised: 0.5 ~ 15% dispersant, 0.2 ~ 5% adhesive, 0.05 ~ 5% disintegrant, appropriate carrier.Wherein dispersant can be one or more in alkylnaphthalene sulfonate, dispersant NNO, lignosulfonates, alkylbenzenesulfonate, alkyl ethyl sulfonate, polycarboxylate; Adhesive can be one or more in bentonite, hydroxypropyl cellulose, polyacrylamide, polyethylene glycol, polyvinyl alcohol; Disintegrant can be one or more in calcium chloride, sodium chloride, magnesium chloride, aluminium chloride; Carrier can be one or more in ammonium sulfate, urea, potassium dihydrogen phosphate, superphosphate, diatomite, white carbon, precipitated calcium carbonate, talcum powder, attapulgite, potter's clay.
Wetting powder of the present invention is adjuvant used to be comprised: 2 ~ 12% dispersants, 1 ~ 10% wetting agent, appropriate carrier.Wherein, dispersant can be one or more in lignosulfonates, polycarboxylate, alkylnaphthalene sulfonate, neopelex, alkyl polyoxyethylene ether sulfonate, alkylphenol-polyethenoxy base ether formaldehyde condensation products; Wetting agent can be one or more in lauryl sodium sulfate, Teepol, fatty alcohol-polyoxyethylene ether, polyoxyethylene nonylphenol ether, sorbitan fatty acid ester APEO; Carrier can be one or more in kaolin, diatomite, attapulgite, bentonite, white carbon.
Herbicidal composition provided by the invention is mainly used in paddy field management of weeds, and compared with prior art, the present invention possesses following beneficial effect:
1, Herbicidal combinations of the present invention adopt triazole acyl grass amine and clefoxidim composite, two active components are composite in certain ratio range shows fabulous synergistic function, mixed composition comparatively single dose significantly improves herbicidal effect, thus reduce using dosage, while minimizing peasant drug cost, reduce the adverse effect of agricultural chemicals to ecotope.
2, Herbicidal combinations of the present invention expands herbicide spectrum, makes a kind of medicament can prevent and treat multiple weeds simultaneously, provides a kind of means of prevention extremely easily and effectively, all have good preventive effect to paddy field main weeds.
3, Herbicidal combinations of the present invention adopts two kinds of different mechanisms of action to kill weeds, and the different action characteristic of medicament makes to produce extremely strong mutual supplement with each other's advantages between two kinds of active components, effectively can delay generation and the development of single dose resistance.
4, Herbicidal combinations of the present invention is to rice safety, can kill rice field main weeds under the prerequisite not injuring paddy rice.
[embodiment]
In order to make object of the present invention, technical scheme and advantage clearly understand, the following specific embodiment of the present invention is described, but is only limitted to this absolutely not.The following stated is the good embodiment of the present invention; only for describing the present invention; can not limitation of the present invention be interpreted as, it should be noted that any amendment done within the spirit and principles in the present invention, equivalent replacement and improve, all should be included within protection scope of the present invention.
Example of formulations 1:5% triazole acyl grass amine clefoxidim granule
First with white carbon, clefoxidim is adsorbed completely, mix by formula rate with above-mentioned raw materials again, then often regulation for granule method and forward slip value, air-flow crushing, rear mixing, add water kneadings, granulation, screening, obtains described 5% triazole acyl careless amine clefoxidim granule.
Example of formulations 2:15% triazole acyl grass amine clefoxidim granule
First with white carbon, clefoxidim is adsorbed completely, mix by formula rate with above-mentioned raw materials again, frequent regulation for granule method and forward slip value, air-flow crushing, rear mixing, add water kneading, granulation, screening, obtains described 15% triazole acyl grass amine clefoxidim granule.
Example of formulations 3:27% triazole acyl grass amine clefoxidim granule
First with white carbon, clefoxidim is adsorbed completely, mix by formula rate with above-mentioned raw materials again, frequent regulation for granule method and forward slip value, air-flow crushing, rear mixing, add water kneading, granulation, screening, obtains described 27% triazole acyl grass amine clefoxidim granule.
Example of formulations 4:72% triazole acyl grass amine clefoxidim wetting powder
First with white carbon by clefoxidim absorption completely, then mix by formula rate with above-mentioned raw materials, frequent regulation, for the method for wetting powder and forward slip value, air-flow crushing, rear mixing, obtains described 72% triazole acyl grass amine clefoxidim wetting powder.
Example of formulations 5:33% triazole acyl grass amine clefoxidim wetting powder
First with white carbon by clefoxidim absorption completely, then mix by formula rate with above-mentioned raw materials, frequent regulation, for the method for wetting powder and forward slip value, air-flow crushing, rear mixing, obtains described 33% triazole acyl grass amine clefoxidim wetting powder.
Example of formulations 6:45% triazole acyl grass amine clefoxidim wetting powder
First with white carbon by clefoxidim absorption completely, then mix by formula rate with above-mentioned raw materials, frequent regulation, for the method for wetting powder and forward slip value, air-flow crushing, rear mixing, obtains described 45% triazole acyl grass amine clefoxidim wetting powder.
Raw survey embodiment 1
Triazole acyl grass amine and clefoxidim cauline leaf process synergy toxicity determination test
In order to prevent and treat the paddy field weed in agricultural production, inventors have investigated the herbicidal effect of triazole acyl grass amine and clefoxidim binary built, and the synergy type after using with Sun Yun abundant both method evaluations different proportion, for the rational mixture of triazole acyl grass amine and clefoxidim provides scientific basis.Experiment is with reference to " farm-chemical indoor determination experiment criterion weed killer herbicide the 9th part ".
1, experimental condition
(1) for examination weeds
Firefly Lin, Herba Cyperi Glomerati, Paspalum distichum, agrostis stolonifera
(2) reagent agent
Triazole acyl grass amine
Clefoxidim
2, try material to prepare
Cultivation for examination weeds adopts potted plant cultivation.By 11 × 12cm plastic basin, by air-dry at the soil not using the farmland of weed killer herbicide to adopt to return, sieve after fill basin, quantitative 4/5 place of dry ground in basin, P in soil H value 7.2, the content of organic matter 1.1%.Top pouring mode is adopted to make soil completely moistening.Then by the seed uniform broadcasting through pretreated firefly Lin of vernalization, Herba Cyperi Glomerati, Paspalum distichum, agrostis stolonifera in soil surface, every basin broadcasts 30 ~ 40, earthing 1 ~ 2mm, is placed in cellar culture in greenhouse.In incubation with top irrigation method moisturizing to saturation state.After weeds emerge, every basin is decided to be 20 strains.
3, experimental scheme
46 process are established in this test altogether, wherein triazole acyl grass amine establish 50,100,150,200,250g a.i./hm
25 dosage process, clefoxidim establishes 40,80,120,160,200g a.i./hm
25 dosage process.Triazole acyl grass amine is mixed with both clefoxidims establishes 7 assembly than processing: 1:32,1:8,1:2,2:1,8:1,32:1,128:1, dosage is 40,80,120,160,200g a.i./hm
2, separately establish 1 clear water contrast, amount to 46 process, repeat 4 times.
4, application method
The dispenser time limit carries out cauline leaf spraying process when fixing on weeds 2 ~ 4 leaf phase, be placed in spray medicine (ASS-4 type pesticide spraying system, DG8003 shower nozzle, atomisation pressure 2.75MPA in tower, spouting liquid 30Kg/ mu), treat after dispenser that natural air drying is placed in greenhouse to cultivate and observe.
5, data survey and statistical analysis
Record the damage symptoms of weeds after dispenser in detail, process latter 45 days, carry out fresh weight measurement, and compared with control treatment, calculate weeds fresh weight preventive effect.By the linear regression analysis between the probability value of preventive effect and the logarithm value of series concentration, calculate the ED of each process
50and correlation coefficient, evaluate the biologically active of each process to weeds, use Sun Yun abundant method to calculate the co-toxicity coefficient of different agents proportioning, evaluate the synergy situation of different ratio, determine the optimum activity ratio of triazole acyl grass amine and clefoxidim.
The abundant method computing formula of Sun Yun:
In formula: E---fresh weight preventive effect;
C---contrast weeds acrial part weeds fresh weight;
T---process weeds acrial part weeds fresh weight.
In formula: ATI---mixture actual measurement toxicity index;
The ED of S---standard herbicide
50, unit is a gram per hectare (g a.i./hm
2);
The ED of M---mixture
50, unit is a gram per hectare (g a.i./hm
2).
TTI＝TI
A×P
A+TI
B×P
B……………………………………………(3)
In formula: TTI---the theoretical toxicity index of mixture;
TI
a---A medicament toxicity index;
P
a---the percentage composition of A medicament in mixture, unit is percentage (%);
TI
b---B medicament toxicity index;
P
b---the percentage composition of B medicament in mixture, unit is percentage (%);
In formula: CTC---co-toxicity coefficient;
ATI---mixture actual measurement toxicity index;
The theoretical toxicity index of TTI---mixture.
Co-toxicity coefficient CTC >=120 of built agent show as synergistic effect; CTC≤80 show as antagonism; 80 < CTC < 120 show as summation action.
6, results and analysis is in table 1 ~ 4
Table 1 triazole acyl grass amine and clefoxidim mixture water prevention weeds in paddy field firefly Lin virulence
Table 2 triazole acyl grass amine and clefoxidim mixture water prevention weeds in paddy field Herba Cyperi Glomerati virulence
Table 3 triazole acyl grass amine and clefoxidim mixture water prevention weeds in paddy field Paspalum distichum virulence
Table 4 triazole acyl grass amine and clefoxidim mixture water prevention weeds in paddy field agrostis stolonifera virulence
Toxicity Determination result shows, triazole acyl grass amine shows as addition or synergistic effect with clefoxidim is mixed in the scope of weight ratio 1:32 ~ 128:1 to weeds, mixed in the scope of weight ratio 1:8 ~ 32:1 have good synergistic effect, mixed in the scope of weight ratio 1:2 ~ 8:1 have obvious synergistic effect, expand control of weeds spectrum, reach the object of simultaneously preventing and kill off the various weeds of paddy field.
Raw survey embodiment 2
Triazole acyl grass amine and the composite cauline leaf process of clefoxidim are tested the Security test of paddy rice
In order to study triazole acyl grass amine and the composite cauline leaf process of clefoxidim to the safety of paddy rice, for the rational mixture of triazole acyl grass amine and clefoxidim provides scientific basis, inventor has done following test, test tests criterion-weed killer herbicide with reference to People's Republic of China (PRC) agricultural industry criteria NY/T 1155.8-2007 farm-chemical indoor determination, the 8th part: the safety testing cauline leaf spray-on process of crop.
1, experimental condition
(1) for studying thing
Paddy rice
(2) for examination weeds
Barnyard grass
(3) reagent agent
Triazole acyl grass amine
Clefoxidim
2, try material to prepare
(1) for studying thing
Adopt greenhouse pot culture method for the cultivation studying thing, by 11 × 12cm plastic basin, put in shallow-water tank, by air-dry for the soil adopted back in the farmland not using weed killer herbicide, after sieving, fill basin, quantitative 4/5 place of dry ground in basin, P in soil H value 7.2, the content of organic matter 1.1%.After adopting top pouring mode to make soil completely moistening, rice paddy seed is quantitatively broadcasted sowing in soil surface, earthing 1.0cm, indoor temperature 28 ~ 32 DEG C/18 ~ 25 DEG C (d/n), relative moisture 75% ± 15%.In incubation with top irrigation method moisturizing to saturation state.After rice seedling, every basin is decided to be 10 strains.
(2) for examination weeds
Cultivation for examination weeds adopts greenhouse pot culture method, and by 11 × 12cm plastic basin, put in shallow-water tank, by not using, the soil adopted back in the farmland of weed killer herbicide was air-dry, filled basin after sieving, quantitative 4/5 place of dry ground in basin, P in soil H value 7.2, the content of organic matter 1.1%.Adopt infiltrating irrigation mode bottom basin alms bowl, after making soil completely moistening, quantitatively broadcast sowing pretreated in soil surface for examination weed seed, earthing 2mm, indoor temperature 28 ~ 32 DEG C/18 ~ 25 DEG C (d/n), relative moisture 75% ± 15%.With top irrigation method moisturizing to saturation state, after barnyard grass is emerged, every basin is decided to be 10 strains.
3, experimental scheme
(1) weeds dispenser dosage
36 process are established in test altogether, wherein the careless amine of triazole acyl establish 60,75,90,105,120g a.i./hm
25 dosage process, clefoxidim establishes 50,60,70,80,90g a.i./hm
25 dosage process.Triazole acyl grass amine is mixed with both clefoxidims establishes 5 assembly than processing: 1:8,1:2,2:1,8:1,32:1, dosage is 50,60,70,80,90g a.i./hm
2, separately establish 1 clear water contrast, amount to 36 process, repeat 4 times.
(2) crop dispenser dosage
36 process are established in test altogether, wherein the careless amine of triazole acyl establish 240,360,480,600,720g a.i./hm
25 dosage process, clefoxidim establishes 200,300,400,500,600g a.i./hm
25 dosage process.Triazole acyl grass amine is mixed with both clefoxidims establishes 5 assembly than processing: 1:8,1:2,2:1,8:1,32:1, dosage is 240,360,480,600,720g a.i./hm
2, separately establish 1 clear water contrast, amount to 36 process, repeat 4 times.
4, application method
The dispenser time limit carries out cauline leaf spraying process when fixing on paddy rice 2 leaf 1 heart stage, weeds 2 ~ 4 leaf phase, be placed in spray medicine (ASS-4 type pesticide spraying system, DG8003 shower nozzle, atomisation pressure 2.75MPA in tower, spouting liquid 30Kg/ mu), treat that natural air drying is placed in greenhouse to cultivate and observe.
5, data survey and statistical analysis
(1) crop investigation
After dispenser, investigate each process paddy rice with or without symptom of chemical damage, if having, record symptom of chemical damage in detail, within after medicine 45 days, weigh each process paddy rice fresh weight, calculate fresh weight inhibition, with the safety of clear and definite test medicine to paddy rice.
(2) weedy rices
The damage symptoms (as growth inhibition, chlorosis, deformity etc.) of detailed record weeds after dispenser, after medicine 45 days, weighs each process weeds acrial part fresh weight, the fresh weight preventive effect of employing growth inhibition assay calculating weeds.
(3) growth inhibition assay computing formula
In formula:
E-fresh weight preventive effect, unit is percentage (%);
T
0-contrast weeds acrial part fresh weight, unit is gram;
T
1-process weeds acrial part fresh weight, unit is gram.
(4) selectivity index computational methods
6, results and analysis is in table 5 ~ 7
Table 5 triazole acyl grass amine mixtures' ratio different from clefoxidim is to the preventive effect of barnyard grass
Table 6 triazole acyl grass amine mixtures' ratio different from clefoxidim is to the safety of paddy rice
Table 7 triazole acyl grass amine mixtures' ratio different from clefoxidim is to the selectivity index of paddy rice
Note: in table 7, data are by market demand DPS2000 data handling system (Tang Qiyi in table 5, table 6, Feng Mingguang. Practical Statistic analysis and DPS data handling system [M] thereof. Beijing: Science Press, 2002.188 ~ 201) calculate.
When selectivity index >=4, represent that the selectivity of medicament between crops and weeds is very high, as 2≤selectivity index < 4, represent that medicament has selectivity between crops and weeds, as selectivity index < 2, represent the poor selectivity of medicament between crops and weeds.The Security test result of the test of paddy rice is shown: triazole acyl grass amine is greater than 2 with clefoxidim mixed selectivity index to paddy rice in the scope of weight ratio 1:8 ~ 32:1, illustrates that this complex composition is to rice safety.
Raw survey embodiment 3
Prevent and kill off paddy field weed field control effectiveness test I:
1, test process
7 process are established in test, repeat for 4 times, totally 28 process communities, and often process plot area 20 square metres, random district group arranges.(1) ~ (5) 5% triazole acyl grass amine clefoxidim granule is reagent agent, and 2.5% triazole acyl grass amine granule and 7.5% clefoxidim missible oil are contrast medicament.Every mu is watered 30 kilograms, adopts 552 third type sprayers (0.7mm aperture) even spraying.Field main weeds has firefly Lin, Herba Cyperi Glomerati, Procumbent Falsepimpernel, rice Leersia Sw, Paspalum distichum, agrostis stolonifera etc.
2, pilot project and method
(1) safety: after dispenser, the situation of growing of investigation paddy rice, evaluates reagent agent to the safety of paddy rice.
(2) herbicidal effect: every community gets 4 points at random, investigates 1/4 square metre at often, and after dispenser, 45 days investigation weed control efficacies, record weeds kind and strain number respectively, calculate weeds strain preventive effect.
3, result of the test
(1) safety: dispenser " Invest, Then Investigate ", chemicals treatment district Plant Height of Rice, Ye Se and blank district are basically identical, show that reagent agent (1) ~ (5) 5% triazole acyl grass amine clefoxidim granule is all to rice safety.
(2) herbicidal effect: in table 8
45 days various weed control efficacies after table 8 medicine
Note: (1) 5% triazole acyl grass amine clefoxidim granule (1:8)
(2) 5% triazole acyls grass amine clefoxidim granule (1:2)
(3) 5% triazole acyls grass amine clefoxidim granule (2:1)
(4) 5% triazole acyls grass amine clefoxidim granule (8:1)
(5) 5% triazole acyls grass amine clefoxidim granule (32:1)
(6) 2.5% triazole acyl grass amine granules
(7) 7.5% clefoxidim missible oil
(8) blank
As shown in Table 8,5% triazole acyl grass amine clefoxidim granule of different ratio between 80.40% ~ 95.64%, is all better than contrast medicament 2.5% triazole acyl grass amine granule and 7.5% clefoxidim missible oil (weeds strain preventive effect is respectively 53.85% and 54.34%) to common weed strain preventive effect.All have obvious preventive effect to paddy field common weed when wherein triazole acyl grass amine and clefoxidim weight ratio are 1:8 ~ 32:1, weeds strain preventive effect is all more than 80%; Better to paddy field common weed preventive effect when triazole acyl grass amine and clefoxidim weight ratio are 1:2 ~ 8:1, weeds strain preventive effect is all more than 92%; And triazole acyl grass amine and clefoxidim weight ratio when being 2:1 preventive effect especially up to 95.64%.Illustrate thus, triazole acyl grass amine and clefoxidim weight ratio, within the scope of 1:8 ~ 32:1, have preventive effect, and this herbicidal composition are to rice safeties to the common grassy weed of paddy field, broad leaved weed and sedge weed.
Prevent and kill off paddy field weed field control effectiveness test II:
1, test process
(1) 2.5% triazole acyl grass amine clefoxidim granule (2:1) 960g/ mu
(2) 5% triazole acyl grass amine clefoxidim granule (2:1) 480g/ mus
(3) 50% triazole acyl grass amine clefoxidim granule (2:1) 48g/ mus
3 process are established in test, repeat for 4 times, totally 12 process communities, and often process plot area 20 square metres, random district group arranges.(1) ~ (3) triazole acyl grass amine clefoxidim granule is reagent agent, and every mu is watered 30 kilograms, adopts 552 third type sprayers (0.7mm aperture) even spraying.Field main weeds has firefly Lin, Herba Cyperi Glomerati, Procumbent Falsepimpernel, rice Leersia Sw, Paspalum distichum, agrostis stolonifera etc.
2, pilot project and method
Herbicidal effect: every community gets 4 points at random, investigates 1/4 square metre at often, and after dispenser, 45 days investigation weed control efficacies, record weeds kind and strain number respectively, calculate weeds strain preventive effect.
3, result of the test: herbicidal effect is in table 9
45 days various weed control efficacies after table 9 medicine
Note: (1) 2.5% triazole acyl grass amine clefoxidim granule (2:1)
(2) 5% triazole acyls grass amine clefoxidim granule (2:1)
(3) 50% triazole acyls grass amine clefoxidim granule (2:1)
As shown in Table 9, when triazole acyl grass amine and clefoxidim are when weight ratio is 2:1, the triazole acyl grass amine clefoxidim granule of different content to common weed strain preventive effect all more than 95%, when showing that triazole acyl grass amine and clefoxidim weight ratio are optimal proportion, the herbicidal composition of different activities component content all has significant preventive effect to weeds.
In sum, instant component is reasonable, preventive effect is better than activity when each component is used separately, good preventive effect is all had to grassy weed, broad leaved weed and sedge weed, expand control of weeds spectrum, delay the generation of herbicide resistance, to crop safety, meet the security requirement of pesticidal preparations.
Claims (6)
1. a herbicidal composition, is characterized in that said composition comprises a and b two kinds of active components, and wherein active component a is triazole acyl grass amine, and active component b is clefoxidim, and two active component weight ratios are: a triazole acyl grass amine: b clefoxidim=1:8-32:1.
2. herbicidal composition according to claim 1, is characterized in that active component weight ratio is: a triazole acyl grass amine: b clefoxidim=1:2-8:1.
3. herbicidal composition according to claim 2, is characterized in that active component weight ratio is: a triazole acyl grass amine: b clefoxidim=2:1.
4. the herbicidal composition according to any one of claim 1-3, is characterized in that the percentage composition of active component in herbicidal composition is 1-80%.
5. herbicidal composition according to claim 1, is characterized in that said composition can be any one formulation agriculturally allowed.
6. herbicidal composition according to claim 1, is characterized in that for preventing and kill off paddy field weed.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104839171A (en) * | 2015-04-29 | 2015-08-19 | 广东中迅农科股份有限公司 | Weeding composition containing triazole napropamide and oxyfluorfen |
| CN104855391A (en) * | 2015-05-24 | 2015-08-26 | 安徽丰乐农化有限责任公司 | Post-emergence herbicide containing bispyribac-sodium and ipfencarbazone used for rice |
| CN106489974A (en) * | 2015-09-07 | 2017-03-15 | 江苏龙灯化学有限公司 | A kind of Herbicidal combinations |
| CN106508913A (en) * | 2016-10-11 | 2017-03-22 | 泰安市农业科学研究院 | Herbicide composition containing triazole sulcotrione and triazole napropamide and application thereof |
| CN106889102A (en) * | 2017-04-13 | 2017-06-27 | 江苏莱科化学有限公司 | A kind of two-spot compounds Herbicidal composition for rice field |
| CN107094771A (en) * | 2017-06-08 | 2017-08-29 | 上海虎印实业有限公司 | It is a kind of containing clefoxidim He the Herbicidal combinations of metamifop |
| CN108552201A (en) * | 2018-05-18 | 2018-09-21 | 青岛瀚生生物科技股份有限公司 | Wheat field weeding composition and its application |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104839171A (en) * | 2015-04-29 | 2015-08-19 | 广东中迅农科股份有限公司 | Weeding composition containing triazole napropamide and oxyfluorfen |
| CN104839171B (en) * | 2015-04-29 | 2018-04-27 | 广东中迅农科股份有限公司 | Herbicidal combinations containing three azole amides and Oxyfluorfen |
| CN104855391A (en) * | 2015-05-24 | 2015-08-26 | 安徽丰乐农化有限责任公司 | Post-emergence herbicide containing bispyribac-sodium and ipfencarbazone used for rice |
| CN106489974A (en) * | 2015-09-07 | 2017-03-15 | 江苏龙灯化学有限公司 | A kind of Herbicidal combinations |
| CN106489974B (en) * | 2015-09-07 | 2019-04-12 | 江苏龙灯化学有限公司 | A kind of Herbicidal combinations |
| CN106508913A (en) * | 2016-10-11 | 2017-03-22 | 泰安市农业科学研究院 | Herbicide composition containing triazole sulcotrione and triazole napropamide and application thereof |
| CN106508913B (en) * | 2016-10-11 | 2020-01-03 | 泰安市农业科学研究院 | Herbicide composition containing triazophoron and triafamone and application thereof |
| CN106889102A (en) * | 2017-04-13 | 2017-06-27 | 江苏莱科化学有限公司 | A kind of two-spot compounds Herbicidal composition for rice field |
| CN107094771A (en) * | 2017-06-08 | 2017-08-29 | 上海虎印实业有限公司 | It is a kind of containing clefoxidim He the Herbicidal combinations of metamifop |
| CN108552201A (en) * | 2018-05-18 | 2018-09-21 | 青岛瀚生生物科技股份有限公司 | Wheat field weeding composition and its application |
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