CN102986706B - Paddy field weeding composition - Google Patents
Paddy field weeding composition Download PDFInfo
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- CN102986706B CN102986706B CN201210562469.5A CN201210562469A CN102986706B CN 102986706 B CN102986706 B CN 102986706B CN 201210562469 A CN201210562469 A CN 201210562469A CN 102986706 B CN102986706 B CN 102986706B
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- fenoxaprop
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Abstract
The invention relates to the technical field of agricultural pesticides, in particular to a weeding composition and a herbicide. The weeding composition consists of azimsulfuron and fenoxaprop-p-ethyl. The invention also provides the best ratio of the azimsulfuron and fenoxaprop-p-ethyl as the components of the weeding composition. The herbicide has a good effect of preventing almost all weeds in a paddy field, and has obvious synergized action compared with a single preparation, so that the dosage can be reduced, and the labor force is saved. Besides, the composition is simple in process and readily available in auxiliary materials when used for preparing the herbicide.
Description
Technical field
The present invention relates to technical field of pesticide, relate in particular to a kind of Herbicidal combinations and weed killer herbicide.
Background technology
Paddy rice is one of main cereal crops of China, and paddy field crop smothering is very serious.Paddy field sealing weeding is owing to using continuously for many years the medicaments such as pyrazosulfuron, bensulfuron-methyl, cause the sedge weed pesticide resistance such as the broad leaved weeds such as angustifolia arrowhead herb (donkey ear dish), rhizoma alismatis (water-white dish), Monochoria korsakowii (orchid dish) and convexutricle sedge herb to strengthen, harm increases the weight of.Owing to using a certain class weed killer herbicide and the change of wheatland cropping system, the introducing of new varieties makes weed community occur significantly to change at paddy field for a long time, paddy field weed bamboo telegraph also constantly spreads.Especially broad leaved weed is as angustifolia arrowhead herb, rhizoma alismatis, Monochoria vaginalis, Monochoria korsakowii etc., and its fertility is strong, and diffusion velocity is fast, and harm is heavy, has become the de novo malignant weed of paddy field in recent years, causes Severe Reduction of Rice.In recent years, angustifolia arrowhead herb, rhizoma alismatis, Monochoria vaginalis, Monochoria korsakowii etc. constantly strengthen the anti-drug resistance of sulfonylurea (especially bensulfuron-methyl, pyrazosulfuron) weed killer herbicide, sealing effect to broad leaved weed declines rapidly, and the product of this sulfonylurea now can not meet the needs that paddy field is prevented and kill off broad leaved weed.
Azimsulfuron, English name Azimsulfuron, has suc as formula the structure shown in I
Formula I
The same with other sulfonylurea herbicide, be the inhibitor of acetolactate synthestase (ALS), in paddy rice body, resolve into rapidly the metabolite without activity of weeding, weeds absorb by root and leaf, in weeds plant body, conduct, weeds stop growing, leaf look chlorisis, then withered.Can effectively prevent and kill off the weeds such as barnyard grass, northern water hair flower, difformed galingale herb, toothcup, pondweed, flower Lin, Europe rhizoma alismatis.
Fenoxaprop, English name fenoxaprop-ethyl, has suc as formula the structure shown in II
Formula II
Being selectivity inner sucting conduction type acyl aniline herbicide, is Growth of Cells and division inhibitor, and the division of the former mother cell of children is had to strong especially inhibitory action.Mainly by bud scale and root absorption, through xylem and phloem, conduct to young shoot and the tender leaf of weeds, stop weed growth point cell division elongation, after contacting this medicine, grassy weed (barnyard grass) is gathered in very soon growing point place.To cell particularly mother cell play and suppress cell division, increase, thereby the growth that hinders barnyard grass is until death.Can effectively prevent and kill off grassy weed, barnyard grass is had to special efficacy in rudiment to the 2 leaf phase, to moleplant seed, needle spikesedge herb, wartwort, Monochoria vaginalis, mexicana, special-shaped nutgrass flatsedge, flat nutgrass flatsedge, cyperus iria and for many years aquatic nutgrass flatsedge also have certain preventive effect.
Because weeds generation kind in current paddy field is many, quantity is large, and by weed killer herbicide carry out reasonably composite expand herbicide spectrum and can reduce dosage reduce costs, save labour.But existing weed killer herbicide can only be prevented and treated a part of weeds in rice field, comprehensively killing weeds in rice field.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of Herbicidal combinations, can prevent and kill off paddy field weed comprehensively, comprises grassy weed, sedge weed and broad leaved weed.Herbicidal combinations provided by the invention can strengthen herbicidal effect, reduces dosage.
The invention provides a kind of Herbicidal combinations, by azimsulfuron He fenoxaprop form.
As preferably, azimsulfuron in Herbicidal combinations provided by the invention is with the weight ratio of fenoxaprop is 1:2 ~ 10.
Preferably, in Herbicidal combinations provided by the invention azimsulfuron with the weight ratio of fenoxaprop is 1:3 ~ 8.
More preferably, in Herbicidal combinations provided by the invention azimsulfuron with the weight ratio of fenoxaprop is 1:5 ~ 6.
Wherein, azimsulfuron is a kind of sulfonylurea herbicide, is mainly used in preventing and kill off the weeds such as barnyard grass, northern water hair flower, difformed galingale herb, toothcup, pondweed, flower Lin, Europe rhizoma alismatis.Fenoxaprop is selectivity inner sucting conduction type acyl aniline herbicide, be used for preventing and kill off grassy weed, barnyard grass is had to special efficacy in rudiment to the 2 leaf phase, to moleplant seed, needle spikesedge herb, wartwort, Monochoria vaginalis, mexicana, special-shaped nutgrass flatsedge, flat nutgrass flatsedge, cyperus iria and for many years aquatic nutgrass flatsedge also have certain preventive effect.Herbicidal combinations provided by the invention is by azimsulfuron with fenoxaprop carries out compositely, and the best proportioning while providing both as weed killer herbicide, has expanded herbicide spectrum, has improved drug effect, and weeds common in rice field are had to good preventive and therapeutic effect.
The present invention also provides a kind of weed killer herbicide, comprises acceptable auxiliary material in herbicidal composition provided by the invention and agricultural chemicals.
Preferably, in weed killer herbicide, the percentage by weight of Herbicidal combinations provided by the invention is 1% ~ 90%.
Preferably, the formulation of weed killer herbicide provided by the invention is granule, wetting powder and water dispersible granules.
As preferably, herbicide granule provided by the invention comprises: Herbicidal combinations provided by the invention, wetting agent, dispersant, carrier.
Preferably, in herbicide granule provided by the invention, the weight fraction of Herbicidal combinations provided by the invention is 1% ~ 90%.
More preferably, in herbicide granule provided by the invention, the weight fraction of Herbicidal combinations provided by the invention is 11% ~ 65%.
As preferably, weeding wetting powder provided by the invention comprises: Herbicidal combinations provided by the invention, wetting agent, dispersant and carrier.
Preferably, in weeding wetting powder provided by the invention, the weight fraction of Herbicidal combinations provided by the invention is 1% ~ 90%.
More preferably, in weeding wetting powder provided by the invention, the weight fraction of Herbicidal combinations provided by the invention is 26% ~ 83%.
As preferably, weeding water dispersible granules provided by the invention comprises: Herbicidal combinations provided by the invention, wetting agent, dispersant, disintegrant, adhesive and carrier.
Preferably, in weeding water dispersible granules provided by the invention, the weight fraction of Herbicidal combinations provided by the invention is 1% ~ 90%.
More preferably, in weeding water dispersible granules provided by the invention, the weight fraction of Herbicidal combinations provided by the invention is 21% ~ 76%.
Preferably, wetting agent of the present invention is selected from: alkyl sulfate, alkylbenzenesulfonate, alkylsulfonate, alkylnaphthalene sulfonate, pull open powder, moistening penetrant t, sorbitan fatty acid ester APEO, Fluhyzon formaldehyde condensation products.
Preferably, dispersant of the present invention is selected from lignosulfonates, Sodium Polyacrylate, di-2-ethylhexylphosphine oxide naphthalene sulfonate, alkyl amine group taurate, polycarboxylate, sodium methylene bis-naphthalene sulfonate formaldehyde condensation products, carboxymethyl cellulose, sodium phosphate trimer, alkylnaphthalene sulfonate condensation polymer.
Preferably, disintegrant of the present invention is selected from urea, sodium carboxymethylcellulose, ammonium sulfate, mineral salt, silica gel, PEG, SF-04.
Preferably, adhesive of the present invention is selected from sucrose, soluble starch, Sodium Polyacrylate, dextrin, xanthans.
Preferably, carrier of the present invention is selected from kaolin, bentonite, potter's clay, diatomite, white carbon, precipitated calcium carbonate, attapulgite.
Herbicidal combinations provided by the invention by azimsulfuron He fenoxaprop form, and the invention provides azimsulfuron with the best proportioning of fenoxaprop during as herbicide components, weed killer herbicide provided by the invention almost has good preventive effect to all weeds in paddy field, azimsulfuron Yu fenoxaprop proportioning between 1:2 ~ 10, co-toxicity coefficient is greater than 120, there is notable synergistic effect, can reduce dosage, saved labour.In addition, composition provided by the invention is when preparing weed killer herbicide, and technique is simple, auxiliary material is common.Experiment shows: when the consumption of weed killer herbicide provided by the invention is 60ga.i./ha, be that 20ga.i./ha, 50% fenoxaprop single dose consumption are compared while being 350ga.i./ha with 50% azimsulfuron single dose consumption, weed killer herbicide provided by the invention to grassy weed, broad leaved weed and sedge weed preventive effect in paddy field apparently higher than using azimsulfuron with preventive effect during fenoxaprop single dose, spraying weed killer herbicide consumption provided by the invention is 200ga.i./ha, after 30 days, the integrated control effect of weeds in paddy field is reached to 96.5%.
Embodiment
The invention provides a kind of weed killer herbicide, those skilled in the art can use for reference content herein, suitably improve technological parameter and realize.Special needs to be pointed out is, all similar replacements and change apparent to those skilled in the artly, they are all deemed to be included in the present invention.Method of the present invention and application are described by preferred embodiment, related personnel obviously can change methods and applications as herein described or suitably change and combination within not departing from content of the present invention, spirit and scope, realizes and apply the technology of the present invention.
The invention provides a kind of Herbicidal combinations, by azimsulfuron He fenoxaprop form.
Wherein, in Herbicidal combinations provided by the invention azimsulfuron with the weight ratio of fenoxaprop is 1:2 ~ 10.
For improving drug effect, azimsulfuron in Herbicidal combinations provided by the invention is with the weight ratio of fenoxaprop is 1:5 ~ 6.
For further improving drug effect, azimsulfuron in Herbicidal combinations provided by the invention is with the weight ratio of fenoxaprop is 1:10 ~ 10:1.
The present invention also provides a kind of weed killer herbicide, comprises acceptable auxiliary material in herbicidal composition provided by the invention and agricultural chemicals.
In weed killer herbicide provided by the invention, the percetage by weight of Herbicidal combinations provided by the invention is 1% ~ 90%.
For convenient, use, the formulation of weed killer herbicide provided by the invention is granule, wetting powder and water dispersible granules.
In some embodiments of the invention, herbicide granule provided by the invention comprises: Herbicidal combinations provided by the invention, wetting agent, dispersant, carrier.In herbicide granule provided by the invention, the weight fraction of Herbicidal combinations provided by the invention is 1% ~ 90%, and in herbicide granule provided by the invention, the weight percentage of each component is followed successively by: Herbicidal combinations 1% ~ 90% provided by the invention, wetting agent 1% ~ 10%, dispersant 1% ~ 10%, surplus are carrier.For making herbicidal effect better, in herbicide granule provided by the invention, the weight fraction of Herbicidal combinations provided by the invention is 11% ~ 65%, and in herbicide granule provided by the invention, the weight percentage of each component is followed successively by: Herbicidal combinations 11% ~ 65% provided by the invention, wetting agent 1% ~ 10%, dispersant 1% ~ 10%, surplus are carrier.
The preparation method of herbicide granule provided by the invention is: get Herbicidal combinations provided by the invention, wetting agent, dispersant and carrier, through pulverizing, mix, granulation, obtains.
In other embodiment of the present invention, weeding wetting powder provided by the invention comprises: Herbicidal combinations provided by the invention, wetting agent, dispersant and carrier.Wherein, in weeding wetting powder provided by the invention, the weight fraction of Herbicidal combinations provided by the invention is 1% ~ 90%.In weeding wetting powder provided by the invention, the content of each component is followed successively by: Herbicidal combinations 1% ~ 90% provided by the invention, wetting agent 1% ~ 10%, dispersant 1% ~ 10%, surplus are carrier.For making herbicidal effect better, in weeding wetting powder provided by the invention, the weight fraction of Herbicidal combinations provided by the invention is 26% ~ 83%.In weeding wetting powder provided by the invention, the content of each component is followed successively by: Herbicidal combination 26% ~ 83% provided by the invention, wetting agent 1% ~ 10%, dispersant 1% ~ 10%, surplus are carrier.
The preparation method of weeding wetting powder provided by the invention is: get Herbicidal combinations provided by the invention, wetting agent, dispersant and carrier, through air-flow crushing, fully mix, obtain.
In other embodiment of the present invention, weeding water dispersible granules provided by the invention comprises: Herbicidal combinations provided by the invention, wetting agent, dispersant, disintegrant, adhesive and carrier.Wherein, in weeding water dispersible granules provided by the invention, the percetage by weight of Herbicidal combinations provided by the invention is 1% ~ 90%.In weeding water dispersible granules provided by the invention, the weight percentage of each component is followed successively by: Herbicidal combinations 1% ~ 90% provided by the invention, wetting agent 1% ~ 10%, dispersant 1% ~ 10%, disintegrant 0.1% ~ 5%, adhesive 0.1% ~ 5%, surplus are carrier.For making herbicidal effect better, in weeding water dispersible granules provided by the invention, the weight fraction of Herbicidal combinations provided by the invention is 21% ~ 76%.In weeding water dispersible granules provided by the invention, the weight percentage of each component is followed successively by: Herbicidal combinations 21% ~ 76% provided by the invention, wetting agent 1% ~ 10%, dispersant 1% ~ 10%, disintegrant 0.1% ~ 5%, adhesive 0.1% ~ 5%, surplus are carrier.
The preparation method of weeding water dispersible granules provided by the invention is: get Herbicidal combinations provided by the invention, wetting agent, dispersant, disintegrant, adhesive and carrier, through air-flow crushing, fully mix, mediate granulation, drying and screening, obtains.
Wherein, wetting agent of the present invention is selected from: alkyl sulfate, alkylbenzenesulfonate, alkylsulfonate, alkylnaphthalene sulfonate, pull open powder, moistening penetrant t, sorbitan fatty acid ester APEO, Fluhyzon formaldehyde condensation products.
Dispersant of the present invention is selected from lignosulfonates, Sodium Polyacrylate, di-2-ethylhexylphosphine oxide naphthalene sulfonate, alkyl amine group taurate, polycarboxylate, sodium methylene bis-naphthalene sulfonate formaldehyde condensation products, carboxymethyl cellulose, sodium phosphate trimer, alkylnaphthalene sulfonate condensation polymer.
Disintegrant of the present invention is selected from urea, sodium carboxymethylcellulose, ammonium sulfate, mineral salt, silica gel, PEG, SF-04.
Adhesive of the present invention is selected from sucrose, soluble starch, Sodium Polyacrylate, dextrin, xanthans.
Carrier of the present invention is selected from kaolin, bentonite, potter's clay, diatomite, white carbon, precipitated calcium carbonate, attapulgite.
In Herbicidal combinations provided by the invention, contain azimsulfuron with fenoxaprop, and the invention provides azimsulfuron with the best proportioning of fenoxaprop during as herbicide components, weed killer herbicide provided by the invention almost has good preventive effect to all weeds in paddy field, azimsulfuron Yu fenoxaprop weight ratio between 1:2 ~ 10, co-toxicity coefficient is greater than 120, there is notable synergistic effect, can reduce dosage, saved labour.In addition, composition provided by the invention, when preparing weed killer herbicide, can be prepared into wetting powder, granule, water dispersant.Formulation is common, easy to use, and technique is simple, auxiliary material easily obtains.Experiment shows: when the consumption of weed killer herbicide provided by the invention is 60ga.i./ha, with 50% azimsulfuron single dose consumption be 20ga.i./ha, when being 350ga.i./ha, 50% fenoxaprop single dose consumption compares, weed killer herbicide provided by the invention is to grassy weed in paddy field, broad leaved weed and sedge weed preventive effect are apparently higher than using azimsulfuron with preventive effect during fenoxaprop single dose, spraying weed killer herbicide consumption provided by the invention is 200ga.i./ha, after 30 days, to grassy weed in paddy field, the preventive effect of broad leaved weed and sedge weed reaches respectively 94.2%, 97.4% and 95.8%, integrated control effect to weeds in paddy field reaches 96.5%.
The reagent that the present invention adopts is all common commercially available product, all can be buied by market.
Below in conjunction with embodiment, further set forth the present invention:
Embodiment 1 Toxicity Determination
Different weed killer herbicide agent active components are mixed rear each active component due to the difference of composition, structure, physicochemical property, make the synergy between each active component be typically expressed as synergistic effect, summation action or antagonism.So-called synergistic effect is exactly the mutual synergism between different material, and the effect of its generation is greater than the sum total of each composition effect; And the effect that summation action is exactly its generation equals the sum total of each composition effect; Antagonism refers to that when two kinds of materials act on living organism, a kind of material disturbs the effect of another kind of material, or the effect of interfering with an opponent each other, the phenomenon that general effect is declined.
Evaluate the mixed interaction of two kinds of different herbicidal activity components and conventionally adopt co-toxicity coefficient method, wherein, co-toxicity coefficient (CTC) >=120 shows as synergistic effect; (CTC)≤80 show as antagonism to co-toxicity coefficient; 80< co-toxicity coefficient (CTC) <120 shows as summation action.The present invention, according to Sun Yunpei (Sun Y-P) method, calculates co-toxicity coefficient and evaluates cloransulammethyl effect mixed with fomesafen, and co-toxicity coefficient is all greater than 120, shows as obvious synergistic effect.
For further, understand azimsulfuron with the synergy that fenoxaprop is mixed to weeds is tested azimsulfuron with fenoxaprop is mixed and carried out formula screening.
Weeds are cultured to 2 ~ 3 leaf phases standby.
According to the object that is mixed, serial proportioning is set, each proportioning arranges 5 ~ 7 concentration gradients.After the weeds cauline leaf of the number of finishing is processed, calculate preventive effect, then by method of least squares, calculate concentration EC in inhibition
50(95% confidence interval), then calculate co-toxicity coefficient (CTC) by the abundant method of Sun Yun.Co-toxicity coefficient (CTC) >=120 shows as synergistic effect; (CTC)≤80 show as antagonism to co-toxicity coefficient; 80< co-toxicity coefficient (CTC) <120 shows as summation action.
Computing formula is:
Actual measurement toxicity index (ATI)=(standard medicament EC
50/ reagent agent EC
50) * 100
The percentage composition of toxicity index * mixture Zhong fenoxaprop of theoretical toxicity index (TTI)=(percentage composition of azimsulfuron in the toxicity index * mixture of azimsulfuron)+(fenoxaprop)
Co-toxicity coefficient (CTC)=[the theoretical virulence coefficient (TTI) of mixture actual measurement virulence coefficient (ATI)/mixture] * 100
The synergy of the grand Yu fenoxaprop of the phonetic aniline sulphur of the different proportionings of table 1 is measured
Measurement result shows, azimsulfuron Yu fenoxaprop weight ratio between 1:2 ~ 10, co-toxicity coefficient is greater than 120, has notable synergistic effect.
The preparation of the azimsulfuron fenoxaprop wetting powder of embodiment 21%
Get each component: azimsulfuron 0.25kg, fenoxaprop 0.75kg, dodecyl sodium sulfate 3.0kg, Sodium Polyacrylate 6.0kg, white carbon 90.0kg, through air-flow crushing, fully mixing, obtain 1% azimsulfuron fenoxaprop wetting powder.
The preparation of the azimsulfuron fenoxaprop wetting powder of embodiment 311%
Get each component: azimsulfuron 1.0kg, fenoxaprop 10.0kg, lauryl sodium sulfate 2.0kg, calcium lignosulfonate 5.0kg, precipitated calcium carbonate 82.0kg, through air-flow crushing, fully mixing, obtain 11% azimsulfuron fenoxaprop wetting powder.
The preparation of the azimsulfuron fenoxaprop wetting powder of embodiment 432%
Get each component: azimsulfuron 8.0kg, fenoxaprop 24.0kg, neopelex 3.0kg, carboxymethyl cellulose 7.0kg, kaolin 58.0kg, through air-flow crushing, fully mixing, obtain 32% azimsulfuron fenoxaprop wetting powder.
The preparation of the azimsulfuron fenoxaprop wetting powder of embodiment 565%
Get each component: azimsulfuron 15.0kg, fenoxaprop 50.0kg, pull open powder 4.0kg, sodium methylene bis-naphthalene sulfonate 8.0kg, kaolin 23.0kg, through air-flow crushing, fully mixing, obtain 65% azimsulfuron fenoxaprop wetting powder.
The preparation of the azimsulfuron fenoxaprop wetting powder of embodiment 690%
Get each component: azimsulfuron 10.0kg, fenoxaprop 80.0kg, moistening penetrant t 2.0kg, sodium methylene bis-naphthalene sulfonate formaldehyde condensation products 5.0kg, potter's clay 3.0kg, through air-flow crushing, fully mixing, obtain 90% azimsulfuron fenoxaprop wetting powder.
The preparation of the azimsulfuron fenoxaprop water dispersible granules of embodiment 71%
Get each component: azimsulfuron 0.25kg, fenoxaprop 0.75kg, dodecyl sodium naphthalene sulfonate 3.0kg, sodium lignin sulfonate 7.0kg, sodium carboxymethylcellulose 0.5kg, Sodium Polyacrylate 1kg, bentonite 87.5kg, through air-flow crushing, fully mixing, kneading granulation, drying and screening, obtain 1% azimsulfuron fenoxaprop water dispersible granules.
The preparation of the azimsulfuron fenoxaprop water dispersible granules of embodiment 826%
Get each component: azimsulfuron 6.0kg, fenoxaprop 20.0kg, moistening penetrant t 3.0kg, sodium phosphate trimer 7.0kg, urea 3.0kg, starch 2.0kg, diatomite 59.0kg, through air-flow crushing, fully mixing, kneading granulation, drying and screening, obtain 26% azimsulfuron fenoxaprop water dispersible granules.
The preparation of the azimsulfuron fenoxaprop water dispersible granules of embodiment 940%
Get each component: azimsulfuron 7.0kg, fenoxaprop 33.0kg, calcium dodecyl benzene sulfonate 3.0kg, sodium phosphate trimer 8.0kg, ammonium sulfate 3.0kg, sucrose 2.0kg, kaolin 44.0kg, through air-flow crushing, fully mixing, kneading granulation, dry and screening, obtain 40% azimsulfuron fenoxaprop water dispersible granules.
The preparation of the phonetic aniline sulphur Long fenoxaprop water dispersible granules of embodiment 1083%
Get each component: azimsulfuron 8.0kg, fenoxaprop 75.0kg, dodecyl sodium sulfate 3.0kg, calcium lignosulfonate 8.0kg, PEG1.0kg, soluble starch 3.0kg, kaolin 2.0kg, through air-flow crushing, fully mixing, kneading granulation, dry and screening, can obtain 83% phonetic aniline sulphur Long fenoxaprop water dispersible granules.
The preparation of the phonetic aniline sulphur Long fenoxaprop water dispersible granules of embodiment 1190%
Get each component: azimsulfuron 30.0kg, fenoxaprop 60.0kg, dodecyl sodium sulfate 3.0kg, calcium lignosulfonate 3.0kg, silica gel 1.0kg, dextrin 1.0kg, kaolin 2.0kg, through air-flow crushing, fully mixing, kneading granulation, dry and screening, can obtain 90% phonetic aniline sulphur Long fenoxaprop water dispersible granules.
The preparation of the azimsulfuron fenoxaprop granule of embodiment 121%
Get each component: azimsulfuron 0.2kg, fenoxaprop 0.8kg, lauryl sodium sulfate 2.0kg, carboxymethyl cellulose 3.0kg, attapulgite 94.0kg, through pulverizing, mixing, granulation, obtain 1% azimsulfuron fenoxaprop granule.
The preparation of the azimsulfuron fenoxaprop granule of embodiment 1321%
Get each component: azimsulfuron 4.0kg, fenoxaprop 17.0kg, lauryl sodium sulfate 4.0kg, sodium phosphate trimer 8.0kg, attapulgite 67.0kg, through pulverizing, mixing, granulation, obtain 21% azimsulfuron fenoxaprop granule.
The preparation of the azimsulfuron fenoxaprop granule of embodiment 1435%
Get each component: azimsulfuron 5.0kg, fenoxaprop 30.0kg, lauryl sodium sulfate 3.0kg, sodium phosphate trimer 6.0kg, attapulgite 56.0kg, through pulverizing, mixing, granulation, obtain 35% azimsulfuron fenoxaprop granule.
The preparation of the azimsulfuron fenoxaprop granule of embodiment 1561%
Get each component: azimsulfuron 7.0kg, fenoxaprop 54.0kg, lauryl sodium sulfate 3.0kg, sodium methylene bis-naphthalene sulfonate 5.0kg, attapulgite 31.0kg, through pulverizing, mixing, granulation, obtain 61% azimsulfuron fenoxaprop granule.
The preparation of the azimsulfuron fenoxaprop granule of embodiment 1676%
Get each component: azimsulfuron 10.0kg, fenoxaprop 66.0kg, pull open powder 4.0kg, sodium lignin sulfonate 7.0kg, diatomite 13.0kg, through pulverizing, mixing, granulation, obtain 76% azimsulfuron fenoxaprop granule.
The azimsulfuron fenoxaprop granule preparation of embodiment 1790%
Get each component: azimsulfuron 22.5kg, fenoxaprop 67.5kg, pull open powder 2kg, sodium lignin sulfonate 3kg, diatomite 5.0kg, through pulverizing, mixing, granulation, obtain 90% azimsulfuron fenoxaprop granule.
Embodiment 18 field control effectiveness tests:
In 1 ~ 3 leaf phase of paddy rice, use respectively the weed killer herbicide that 50% azimsulfuron WDG, 50% fenoxaprop WDG and the embodiment of the present invention 1 ~ 16 provide that stems and leaves of rice is sprayed and processed, within after medicine 30 days, add up the preventive effect to weeds, the results are shown in Table 2.
The preventive effect of table 2 weed killer herbicide provided by the invention to weeds
From above result of the test, the present composition is compared with single dose, and notable synergistic has expanded herbicide spectrum, has reduced dosage.
The weed killer herbicide that other embodiments of the invention provide is similar to the preventive effect of rice field weeds to the weed killer herbicide that embodiment in table 22,8,13 provides to the control efficiency of rice field weeds, compares and all has obvious synergistic effect with single dose, has expanded herbicide spectrum.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a Herbicidal combinations, is characterized in that, azimsulfuron and fenoxaprop, consists of;
Wherein, the weight ratio of described azimsulfuron and described fenoxaprop is 1:2～10.
2. Herbicidal combinations according to claim 1, is characterized in that, the weight ratio of described azimsulfuron and described fenoxaprop is 1:3～8.
3. Herbicidal combinations according to claim 1, is characterized in that, the weight ratio of described azimsulfuron and described fenoxaprop is 1:5～6.
4. a weed killer herbicide, is characterized in that, comprises acceptable auxiliary material in Herbicidal combinations as described in claim 1 to 4 any one and agricultural chemicals.
5. weed killer herbicide according to claim 4, is characterized in that, the percetage by weight of the Herbicidal combinations in described weed killer herbicide as described in claim 1 to 4 any one is 1%～90%.
6. weed killer herbicide according to claim 4, is characterized in that, the formulation of described weed killer herbicide is granule, wetting powder and water dispersible granules.
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| CN105325444A (en) * | 2015-10-29 | 2016-02-17 | 北京燕化永乐生物科技股份有限公司 | Pesticide composition |
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| CN1317931A (en) * | 1998-09-18 | 2001-10-17 | 阿温提斯作物科学有限公司 | Synergistic active substance compsns for controlling harmful plants |
| BRPI0408210A (en) * | 2003-03-13 | 2006-02-14 | Basf Ag | herbicidal mixture, herbicidal composition, process for preparing a herbicidal composition, and method for controlling unwanted vegetation |
| CN103220911A (en) * | 2010-10-15 | 2013-07-24 | 拜耳知识产权有限责任公司 | Use of ALS inhibitor herbicides for control of unwanted vegetation in ALS inhibitor herbicide tolerant beta vulgaris plants |
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