CN115777714B - Weeding composition containing flurbiproflumilast, penoxsulam and pretilachlor - Google Patents
Weeding composition containing flurbiproflumilast, penoxsulam and pretilachlor Download PDFInfo
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- CN115777714B CN115777714B CN202211693131.3A CN202211693131A CN115777714B CN 115777714 B CN115777714 B CN 115777714B CN 202211693131 A CN202211693131 A CN 202211693131A CN 115777714 B CN115777714 B CN 115777714B
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- pretilachlor
- weeds
- penoxsulam
- flurbiproflumilast
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- YLPGTOIOYRQOHV-UHFFFAOYSA-N Pretilachlor Chemical compound CCCOCCN(C(=O)CCl)C1=C(CC)C=CC=C1CC YLPGTOIOYRQOHV-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 239000005592 Penoxsulam Substances 0.000 title claims abstract description 41
- SYJGKVOENHZYMQ-UHFFFAOYSA-N Penoxsulam Chemical compound N1=C2C(OC)=CN=C(OC)N2N=C1NS(=O)(=O)C1=C(OCC(F)F)C=CC=C1C(F)(F)F SYJGKVOENHZYMQ-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 239000000203 mixture Substances 0.000 title claims abstract description 38
- 238000009333 weeding Methods 0.000 title abstract description 25
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 16
- 230000002363 herbicidal effect Effects 0.000 claims description 16
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 16
- 229910000278 bentonite Inorganic materials 0.000 claims description 10
- 239000000440 bentonite Substances 0.000 claims description 10
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 10
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 claims description 10
- 235000010234 sodium benzoate Nutrition 0.000 claims description 10
- 239000004299 sodium benzoate Substances 0.000 claims description 10
- 239000000230 xanthan gum Substances 0.000 claims description 10
- 229920001285 xanthan gum Polymers 0.000 claims description 10
- 229940082509 xanthan gum Drugs 0.000 claims description 10
- 235000010493 xanthan gum Nutrition 0.000 claims description 10
- 229920000136 polysorbate Polymers 0.000 claims description 9
- 150000002148 esters Chemical class 0.000 claims description 6
- 241000196324 Embryophyta Species 0.000 abstract description 89
- 230000000694 effects Effects 0.000 abstract description 24
- 239000000375 suspending agent Substances 0.000 abstract description 14
- 230000002195 synergetic effect Effects 0.000 abstract description 11
- 241001290610 Abildgaardia Species 0.000 abstract description 5
- 239000004480 active ingredient Substances 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 230000002147 killing effect Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 36
- 230000005764 inhibitory process Effects 0.000 description 17
- -1 chlorofluoropyridine ester Chemical class 0.000 description 14
- 238000005507 spraying Methods 0.000 description 14
- 238000005259 measurement Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 230000002265 prevention Effects 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 8
- 244000025670 Eleusine indica Species 0.000 description 7
- 235000014716 Eleusine indica Nutrition 0.000 description 7
- 240000007594 Oryza sativa Species 0.000 description 7
- 239000004009 herbicide Substances 0.000 description 7
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 7
- 229920000053 polysorbate 80 Polymers 0.000 description 7
- 235000001602 Digitaria X umfolozi Nutrition 0.000 description 6
- 235000017898 Digitaria ciliaris Nutrition 0.000 description 6
- 235000005476 Digitaria cruciata Nutrition 0.000 description 6
- 235000006830 Digitaria didactyla Nutrition 0.000 description 6
- 235000005804 Digitaria eriantha ssp. eriantha Nutrition 0.000 description 6
- 235000010823 Digitaria sanguinalis Nutrition 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 244000058871 Echinochloa crus-galli Species 0.000 description 5
- 241001553700 Euphorbia lathyris Species 0.000 description 5
- 235000007164 Oryza sativa Nutrition 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000575 pesticide Substances 0.000 description 5
- 238000004382 potting Methods 0.000 description 5
- 235000009566 rice Nutrition 0.000 description 5
- 210000000582 semen Anatomy 0.000 description 5
- 241001148683 Zostera marina Species 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 230000003042 antagnostic effect Effects 0.000 description 4
- 238000004166 bioassay Methods 0.000 description 4
- 238000012258 culturing Methods 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 230000035784 germination Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
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- 235000014748 Amaranthus tricolor Nutrition 0.000 description 3
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- 150000001875 compounds Chemical class 0.000 description 3
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- 238000009472 formulation Methods 0.000 description 3
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- 108010000700 Acetolactate synthase Proteins 0.000 description 2
- 244000075634 Cyperus rotundus Species 0.000 description 2
- 235000016854 Cyperus rotundus Nutrition 0.000 description 2
- 206010059866 Drug resistance Diseases 0.000 description 2
- 235000007351 Eleusine Nutrition 0.000 description 2
- 241000209215 Eleusine Species 0.000 description 2
- 229930185597 Euphorbia lathyris Natural products 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- SIOXPEMLGUPBBT-UHFFFAOYSA-N picolinic acid Chemical compound OC(=O)C1=CC=CC=N1 SIOXPEMLGUPBBT-UHFFFAOYSA-N 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- IHGMHTQDGNVKTA-UHFFFAOYSA-N 3-chloro-2-fluoropyridine Chemical class FC1=NC=CC=C1Cl IHGMHTQDGNVKTA-UHFFFAOYSA-N 0.000 description 1
- 240000006995 Abutilon theophrasti Species 0.000 description 1
- 241000049624 Alisma plantago-aquatica subsp. orientale Species 0.000 description 1
- 244000269261 Alocasia Species 0.000 description 1
- 244000024893 Amaranthus tricolor Species 0.000 description 1
- 244000036975 Ambrosia artemisiifolia Species 0.000 description 1
- 235000003129 Ambrosia artemisiifolia var elatior Nutrition 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 240000006162 Chenopodium quinoa Species 0.000 description 1
- 235000006481 Colocasia esculenta Nutrition 0.000 description 1
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- 235000014820 Galium aparine Nutrition 0.000 description 1
- 244000017020 Ipomoea batatas Species 0.000 description 1
- 235000002678 Ipomoea batatas Nutrition 0.000 description 1
- 241000195954 Lycopodium clavatum Species 0.000 description 1
- 241000173219 Paspalum distichum Species 0.000 description 1
- 244000062720 Pennisetum compressum Species 0.000 description 1
- 235000010086 Setaria viridis var. viridis Nutrition 0.000 description 1
- 235000016639 Syzygium aromaticum Nutrition 0.000 description 1
- 241001251949 Xanthium sibiricum Species 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 150000001408 amides Chemical group 0.000 description 1
- 235000003484 annual ragweed Nutrition 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 235000006263 bur ragweed Nutrition 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
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- 235000003488 common ragweed Nutrition 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
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- 244000304962 green bristle grass Species 0.000 description 1
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- 235000009736 ragweed Nutrition 0.000 description 1
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- 239000000080 wetting agent Substances 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention provides a weeding composition containing flurbiproflumilast, penoxsulam and pretilachlor, which comprises the following active ingredients in parts by mass: the mass ratio of the flurbiproflumilast to the pretilachlor is 1-15:1-15:1-80; the weeding composition can be used for preventing and killing gramineous weeds, broadleaf weeds and sedge weeds, has a remarkable synergistic effect, and the prepared suspending agent has an excellent field weeding effect, can effectively reduce the dosage of active ingredients and reduces environmental pollution; and field observation is safe to crops.
Description
Technical Field
The invention relates to the field of pesticides, in particular to a weeding composition containing flurbiproflumilast, penoxsulam and pretilachlor and application thereof.
Background
Rice is one of the main grain crops in China, but various weeds in paddy fields seriously affect the yield of the rice. Chemical methods weeding is one of the main means of controlling weeds in agriculture. In recent years, since herbicides are used alone over a large area, many weeds have developed drug resistance, and the control effect is difficult to ensure. In paddy fields, the problem of weed resistance is particularly remarkable, weed emergence phases are complex, annual and perennial weeds are mixed, the emergence of weeds is uneven, seeds and low-age and high-age weeds are staggered, and when herbicide varieties are used independently, the herbicide varieties all show defects and limitations on one aspect. Through scientific and reasonable pesticide compounding, the weeding composition with obvious synergistic effect is selected, so that not only can the control effect be improved and the control spectrum be enlarged, but also the generation of weed drug resistance can be slowed down, the dosage is reduced, the environmental pollution is lightened, and the service life of the pesticide is prolonged.
The chlorofluoropyridine ester is a novel aromatic picolinic acid herbicide developed by Tao Shiyi agricultural company in the United states; can effectively prevent and remove grassy weeds such as barnyard grass, taro, rice barnyard grass, semen euphorbiae and the like in paddy fields, cyperus rotundus, piemarker, alisma orientale, amaranthus tricolor, ragweed, quinoa, erigeron breviscapus, mother grass, water clove, longhead, arrowhead, siberian cocklebur and other broadleaf weeds. The medicine is absorbed by leaf and root system of weed after application, has systemic property, can be conducted through xylem and phloem, and accumulated in meristem of weed, thereby exerting herbicidal activity. Because the action mechanism is novel, the known weed resistance problem can be solved, the method is environment-friendly and safe to other organisms.
Penoxsulam is a post-emergence herbicide developed by the united states dow company and has the mechanism of action of inhibiting acetolactate synthase (ALS) of weeds to kill weeds, is effective against barnyard grass, annual sedge weeds, and is effective against a wide variety of broadleaf weeds. The application period is long, and the application can be used from one leaf of rice to one heart of rice to rice maturation.
The pretilachlor is an amide broad-spectrum herbicide for paddy fields, and can effectively prevent and remove most annual grassy weeds, sedge weeds and part broadleaf weeds in paddy fields, such as barnyard grass, moleplant seed, heteromorphic sedge, and glossoside.
In the prior art, no report exists on a weeding composition prepared by compounding clofluazifop-butyl, penoxsulam and pretilachlor.
Disclosure of Invention
The invention aims to provide a weeding composition containing flurbiproflumilast, penoxsulam and pretilachlor. The specific scheme is as follows:
the weeding composition containing the flurbiproflumilast, penoxsulam and pretilachlor comprises the following active ingredients in parts by mass: the mass ratio of the flurbiproflumilast to the pretilachlor is 1-15:1-15:1-80.
The weeding composition comprises the flurbiproflumilast, penoxsulam and pretilachlor, wherein the mass ratio of the flurbiproflumilast to the pretilachlor is 1-10:1-10:10-70.
The weeding composition comprises the flurbiproflumilast, penoxsulam and pretilachlor, wherein the mass ratio of the flurbiproflumilast to the pretilachlor is 1-6:1-10:20-60.
The invention provides a preparation of a weeding composition, wherein the percentage of active ingredients in the weeding composition is 1-75%, and the preparation comprises auxiliary ingredients which can be used in pesticides. The auxiliary agent component comprises one or more of dispersing agent, wetting agent, emulsifying agent, penetrating agent, stabilizing agent, thickening agent, binding agent, disintegrating agent, pH regulator, preservative, cosolvent, antifreezing agent, filler and solvent. The above various adjuvants or carriers are commercially available.
The dosage form of the weeding composition can be dispersible oil suspending agent, water suspending agent, wettable powder, water dispersible granule, oil suspending agent, water emulsion and microemulsion.
The suspending agent comprises the following components in percentage by weight: 1-10% of fluropyridine ester, 1-10% of penoxsulam, 1-50% of pretilachlor, 1-700% of Agr l i an, 1-10% of sodium dodecyl benzene sulfonate, 1-10% of Tween 80, 0.1-2% of SAG1522, 0.5-5% of ethylene glycol, 0.1-3% of xanthan gum, 0.1-2% of sodium benzoate, 0.1-5% of bentonite and 100% of water.
The weeding composition can be used for preventing and controlling crop weeds; the weeds are grassy weeds, broadleaf weeds and sedge weeds.
The weeding composition is mainly used for weeds in paddy direct seeding fields or transplanting fields, and has good inhibition effect on grassy weeds such as barnyard grass, crab grass, moleplant seed, green bristlegrass, paspalum distichum, caryophyllus, arrowhead, sweet potato, euonymus alatus, glossostrea, pennisetum alopecuroides, annual cyperus and cyperus rotundus.
Beneficial technical effects
The weeding composition can be used for preventing and killing gramineous weeds, broadleaf weeds and sedge weeds; the weeding composition has remarkable synergistic effect, can effectively reduce the dosage of active ingredients, and reduces environmental pollution; and field observation is safe to crops.
Agr i an-700, sodium dodecyl benzene sulfonate and Tween 80 are compounded to serve as a surfactant, so that the control effect of the suspending agent on broadleaf weeds and grassy weeds in the paddy field can be improved.
Detailed Description
Example 1 chlorofluoropyridine ester, penoxsulam and pretilachlor complex indoor potting test of Euphorbia lathyris
Test materials and methods
Test weeds: the seeds of the semen euphorbiae are collected from the field and stored indoors for standby.
Test agent: a flurbiproflumilast technical, penoxsulam technical and pretilachlor technical;
The testing method comprises the following steps: planting weed seeds after accelerating germination in a flowerpot, keeping soil humidity in a bottom water seepage mode, and culturing at 22-25 ℃ under the condition of 60% -65% relative humidity; thinning was performed prior to bioassay so that weeds were 30 plants/pot. And (4) when each plant grows to 3-4 leaf stages, adopting stem and leaf spraying treatment, and repeating each treatment for 4 times. And (5) weighing the overground parts of the plants after 21d of spraying treatment by adopting an automatic spraying tower stem and leaf, and calculating the fresh weight inhibition rate.
Fresh weight inhibition/% = [ (fresh weight of surviving weeds in control area-fresh weight of surviving weeds in treatment area)/fresh weight of surviving weeds in control area ] ×100.
Combined action: the theoretical fresh weight inhibition rate (E0=X+Y-X X Y/100) of each treatment mixed combination is calculated by Gowi ng method, then compared with the actual measurement inhibition rate (E), the combined action type of the two mixed combinations on weeds is evaluated, and when the E-E0 value is more than 10% and is synergistic, less than-10% is antagonistic, and between-10% and 10% is additive.
Test results:
As shown by the test results in the table 1, the actual measurement prevention effect on the semen euphorbiae is 23.5-51.0% when the amount of the chlorofluoropyridine ester is 1-5g of a.i./hectare; the actual measurement prevention effect on the semen euphorbiae is 17.2-58.4% when the penoxsulam dosage is 1-10 ga.i./hectare; the actual measurement prevention effect on the semen euphorbiae is 22.5-50.6% when the dosage of pretilachlor is 20-100g a.i./hectare. After the chlorofluoropyridine ester, the penoxsulam and the pretilachlor are compounded, the mass ratio of the chlorofluoropyridine ester, the penoxsulam and the pretilachlor is 1-6:1-10: the composition exhibits a significant synergistic effect at 20-60, wherein E-E0 is greater than 10. The composition exhibits a significant additive effect when the mass ratio of the chlorofluoropyridine ester, penoxsulam and pretilachlor is 1:1:100.
Table 1 chlorofluoropyridine esters, penoxsulam and pretilachlor complex indoor potting test of euphorbia lathyris
Example 2 test materials and methods for testing indoor potting of Eleusines Indicae with compounded herbicidal composition
Test weeds: herba Eleusines Indicae; and (5) collecting the lycopodium clavatum seeds from the field, and storing the seeds indoors for later use.
Test agent: a flurbiproflumilast technical, penoxsulam technical and pretilachlor technical;
The testing method comprises the following steps: planting weed seeds after accelerating germination in a flowerpot, keeping soil humidity in a bottom water seepage mode, and culturing at 22-25 ℃ under the condition of 60% -65% relative humidity; thinning was performed prior to bioassay so that weeds were 30 plants/pot. And (4) when each plant grows to 3-4 leaf stages, adopting stem and leaf spraying treatment, and repeating each treatment for 4 times. And (5) weighing the overground parts of the plants after 21d of spraying treatment by adopting an automatic spraying tower stem and leaf, and calculating the fresh weight inhibition rate.
Fresh weight inhibition/% = [ (fresh weight of surviving weeds in control area-fresh weight of surviving weeds in treatment area)/fresh weight of surviving weeds in control area ] ×100.
Combined action: the theoretical fresh weight inhibition rate (E0=X+Y-X X Y/100) of each treatment mixed combination is calculated by Gowi ng method, then compared with the actual measurement inhibition rate (E), the combined action type of the two mixed combinations on weeds is evaluated, and when the E-E0 value is more than 10% and is synergistic, less than-10% is antagonistic, and between-10% and 10% is additive.
Test results:
As shown by the test results in the table 2, the actual measurement prevention effect on the elegance is 48.4-70.8% when the compounding amount of the chlorofluoropyridine ester and the penoxsulam is 6 ga.i./hectare; the actual measurement prevention effect on the elegance is 28.6-43.8% when the pretilachlor dosage is 25-50g a.i./hectare; after the cloxaprid, the penoxsulam and the pretilachlor are compounded, the pretilachlor can obviously enhance the weeding effect of the cloxaprid and penoxsulam compound composition and has obvious synergistic effect.
Table 2 test of the formulated herbicidal composition on the indoor potting of goosegrass
Example 3 test of formulated herbicidal compositions on Mars Tang Shina potted plants
Test materials and methods
Test weeds: crabgrass; and collecting the crabgrass seeds from the field, and storing the crabgrass seeds indoors for standby.
Test agent: a flurbiproflumilast technical, penoxsulam technical and pretilachlor technical;
The testing method comprises the following steps: planting weed seeds after accelerating germination in a flowerpot, keeping soil humidity in a bottom water seepage mode, and culturing at 22-25 ℃ under the condition of 60% -65% relative humidity; thinning was performed prior to bioassay so that weeds were 30 plants/pot. And (4) when each plant grows to 3-4 leaf stages, adopting stem and leaf spraying treatment, and repeating each treatment for 4 times. And (5) weighing the overground parts of the plants after 21d of spraying treatment by adopting an automatic spraying tower stem and leaf, and calculating the fresh weight inhibition rate.
Fresh weight inhibition/% = [ (fresh weight of surviving weeds in control area-fresh weight of surviving weeds in treatment area)/fresh weight of surviving weeds in control area ] ×100.
Combined action: the theoretical fresh weight inhibition rate (E0=X+Y-X X Y/100) of each treatment mixed combination is calculated by Gowi ng method, then compared with the actual measurement inhibition rate (E), the combined action type of the two mixed combinations on weeds is evaluated, and when the E-E0 value is more than 10% and is synergistic, less than-10% is antagonistic, and between-10% and 10% is additive.
Test results:
As shown by the test results in the table 3, the actual measurement prevention effect on crabgrass is 35.4-51.9% when the consumption of the chlorofluoropyridine ester is 2.5-5g a.i./hectare; the actual measurement prevention effect on crabgrass is 73.1 and 62.5 percent when the compound dosage of penoxsulam and pretilachlor is 24 and 62g a.i./hectare; after the flurbiproflumilast, penoxsulam and pretilachlor are compounded, the flurbiproflumilast can obviously enhance the weeding effect of the penoxsulam and pretilachlor compound composition and shows obvious synergistic effect.
Table 3 test of formulated herbicidal compositions on Mars Tang Shina potting
Example 4 test of the Complex herbicidal composition on indoor potted flowers of Yujiu flowers
Test materials and methods
Test weeds: flowers are grown in a long period of rain; collecting seeds of the long-period rain flowers from the field, and preserving indoors for later use.
Test agent: a flurbiproflumilast technical, penoxsulam technical and pretilachlor technical;
the testing method comprises the following steps: planting weed seeds after accelerating germination in a flowerpot, keeping soil humidity in a bottom water seepage mode, and culturing at 22-25 ℃ under the condition of 60% -65% relative humidity; thinning was performed prior to bioassay so that weeds were 25 plants/pot. And (4) when each plant grows to 2-3 leaf stages, adopting stem and leaf spraying treatment, and repeating each treatment for 4 times. And (5) weighing the overground parts of the plants after 14d of spraying treatment by adopting an automatic spraying tower stem and leaf, and calculating the fresh weight inhibition rate.
Fresh weight inhibition/% = [ (fresh weight of surviving weeds in control area-fresh weight of surviving weeds in treatment area)/fresh weight of surviving weeds in control area ] ×100.
Combined action: the theoretical fresh weight inhibition rate (E0=X+Y-X X Y/100) of each treatment mixed combination is calculated by Gowi ng method, then compared with the actual measurement inhibition rate (E), the combined action type of the two mixed combinations on weeds is evaluated, and when the E-E0 value is more than 10% and is synergistic, less than-10% is antagonistic, and between-10% and 10% is additive.
Test results:
As can be seen from the test results in Table 4, the measured control effects on long-rain flowers at the dosages of 33, 45 ga.i./hectare for the flurbiproflumilast and pretilachlor are 45.8 and 66.2%; the actual measurement prevention effect on the long-period flowers of rain is 30.5-47.0% when the penoxsulam dosage is 3-6g a.i./hectare; after the chlorofluoropyridine ester, the penoxsulam and the pretilachlor are compounded, the penoxsulam can obviously enhance the weeding effect of the chlorofluoropyridine ester and pretilachlor compound composition and shows obvious synergistic effect.
Table 4 test of Compound herbicidal compositions on indoor potted flowers of Yujiuhua
Example 5 field efficacy tests of different suspending agents against rice weeds.
Materials and methods field weeds: weeds in paddy field: barnyard grass, moleplant seed, glossopus arvensis and longflowers; testing the formulation of the medicament: see Table 5
Table 5 suspending agent formulation
The test method comprises the following steps: cell area 35m2, random block arrangement, 3 replicates per treatment, water control. Spraying by adopting manual stem and leaf, wherein the water spraying amount per hectare is 450kg; the fresh weight control effect of weeds is investigated 30 days after the pesticide, 4 points are fixed in each district, 0.5m < 2 > of each point is fixed, the fresh weight of overground parts of weeds is investigated, and the fresh weight control effect is calculated.
Fresh weight control= (fresh weight of weeds in control area-fresh weight of weeds in treatment area)/fresh weight of weeds in control area x 100%.
Test results: grass weeds and broadleaf weeds are common weed types in paddy fields, compared with broadleaf weeds, the grass weeds are long and narrow in leaf blade, and under the same treatment conditions, liquid medicine of the grass weeds is not easy to attach and stay, so that obvious differences exist in the deposition of herbicides on the surfaces of different weed leaf blades, and finally, the pesticide effects are different.
Aiming at grass weeds: compared with other preparations, the Agr i an-700, sodium dodecyl benzene sulfonate and Tween 80 are compounded in the suspending agent of the preparation 4 to serve as the surfactant, so that the wetting and depositing performance of the agent on gramineous weeds can be improved, and the weeding activity is obviously improved.
Compared with other preparations, the compound surfactant (Tersperse 4894+sodium dodecyl benzene sulfonate+Tween 80; agrl i an-700+sodium dodecyl benzene sulfonate+Tween 80; atl ox 4913+sodium dodecyl benzene sulfonate+Tween 80) in the preparations 3,4 and 6 can be beneficial to improving the wetting and depositing performance of the medicament on broadleaf weeds, so that the weeding activity is obviously improved.
The prevention and control effects of the gramineous weeds and the broadleaf weeds can be combined, and the Agr l i an-700, sodium dodecyl benzene sulfonate and Tween 80 are compounded to serve as the surfactant, so that the prevention and control effects of the suspending agent on the broadleaf weeds and the gramineous weeds in the paddy field can be improved.
TABLE 6 field efficacy test of different aqueous suspensions against Rice weeds
Remarks: difference significance in lowercase letters 0.05
Example 6 suspension formulation
35% Of suspending agent, which comprises the following components in percentage by weight:
3% of fluropyridine ester, 2% of penoxsulam, 30% of pretilachlor, agr i an-700% of pretilachlor, 4% of sodium dodecyl benzene sulfonate, 80% of Tween, 0.8% of SAG1522, 1.5% of ethylene glycol, 2% of xanthan gum, 0.3% of sodium benzoate, 1% of bentonite and 100% of water.
30% Of suspending agent, which comprises the following components in percentage by weight:
1% of fluropyridine ester, 1% of penoxsulam, 28% of pretilachlor, agr l i an-700% of pretilachlor, 2% of sodium dodecyl benzene sulfonate, 80% of Tween, 1522% of SAG, 2% of ethylene glycol, 2.5% of xanthan gum, 0.5% of sodium benzoate, 1.5% of bentonite and 100% of water.
25% Of suspending agent, which comprises the following components in percentage by weight:
1% of fluropyridine ester, 2% of penoxsulam, 22% of pretilachlor, agr l i an-700, 2% of sodium dodecyl benzene sulfonate, 80% of Tween, 1% of SAG1522, 1% of ethylene glycol, 1.5% of xanthan gum, 0.7% of sodium benzoate, 1.5% of bentonite and 100% of water.
38% Suspending agent, comprising the following components in percentage by weight:
2% of fluropyridine ester, 2% of penoxsulam, 34% of pretilachlor, agr l i an-700% of pretilachlor, 3% of sodium dodecyl benzene sulfonate, 80% of Tween, 2% of SAG 1522.2%, 2.5% of ethylene glycol, 2% of xanthan gum, 0.5% of sodium benzoate, 0.5% of bentonite and 100% of water.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same.
Claims (2)
1. A herbicidal composition comprising flurbiproflumilast, penoxsulam and pretilachlor, characterized in that the herbicidal composition comprises the following composition in percentage by weight: 1% of fluropyridine ester, 2% of penoxsulam, 27% of pretilachlor, agrlian-700% of pretilachlor, 3% of sodium dodecyl benzene sulfonate, 803% of Tween, 0.5% of SAG1522, 2% of ethylene glycol, 1.5% of xanthan gum, 0.3% of sodium benzoate, 0.5% of bentonite and 100% of water.
2. A herbicidal composition comprising flurbiproflumilast, penoxsulam and pretilachlor, characterized in that the herbicidal composition comprises the following composition in percentage by weight: 3% of flurbiproflumilast, 2% of penoxsulam, 30% of pretilachlor, agrlian-7002% of pretilachlor, 4% of sodium dodecyl benzene sulfonate, 802% of Tween, 15220.8% of SAG, 1.5% of ethylene glycol, 2% of xanthan gum, 0.3% of sodium benzoate, 1% of bentonite and 100% of water;
or comprises the following components in percentage by weight: 1% of flurbiproflumilast, 1% of penoxsulam, 28% of pretilachlor, agrlian-7003% of sodium dodecyl benzene sulfonate, 804% of Tween, 15221% of SAG, 2% of ethylene glycol, 2.5% of xanthan gum, 0.5% of sodium benzoate, 1.5% of bentonite and 100% of water;
Or comprises the following components in percentage by weight: 1% of flurbiproflumilast, 2% of penoxsulam, 22% of pretilachlor, agrlian-7004% of sodium dodecyl benzene sulfonate, 801% of Tween, 15221% of SAG, 1% of ethylene glycol, 1.5% of xanthan gum, 0.7% of sodium benzoate, 1.5% of bentonite and 100% of water;
Or comprises the following components in percentage by weight: 2% of flurbiproflumilast, 2% of penoxsulam, 34% of pretilachlor, agrlian-7003% of pretilachlor, 3% of sodium dodecyl benzene sulfonate, 802% of Tween, 15221.2% of SAG, 2.5% of ethylene glycol, 2% of xanthan gum, 0.5% of sodium benzoate, 0.5% of bentonite and 100% of water.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103906432A (en) * | 2011-09-14 | 2014-07-02 | 陶氏益农公司 | Synergistic herbicidal composition containing penoxsulam and pretilachlor |
| CN104602528A (en) * | 2012-07-24 | 2015-05-06 | 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 |
| CN107027771A (en) * | 2017-05-26 | 2017-08-11 | 江苏莱科化学有限公司 | A kind of Herbicidal combinations of containing chlorine fluorine pyridine ester |
| CN115707382A (en) * | 2021-08-20 | 2023-02-21 | 佛山市盈辉作物科学有限公司 | Weeding composition containing penoxsulam, pretilachlor and fluroxypyr-meptyl |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103906432A (en) * | 2011-09-14 | 2014-07-02 | 陶氏益农公司 | Synergistic herbicidal composition containing penoxsulam and pretilachlor |
| CN104602528A (en) * | 2012-07-24 | 2015-05-06 | 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 |
| CN107027771A (en) * | 2017-05-26 | 2017-08-11 | 江苏莱科化学有限公司 | A kind of Herbicidal combinations of containing chlorine fluorine pyridine ester |
| CN115707382A (en) * | 2021-08-20 | 2023-02-21 | 佛山市盈辉作物科学有限公司 | Weeding composition containing penoxsulam, pretilachlor and fluroxypyr-meptyl |
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