CN104365621A - Herbicidal composition as well as preparation and application thereof - Google Patents
Herbicidal composition as well as preparation and application thereof Download PDFInfo
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- CN104365621A CN104365621A CN201410582268.0A CN201410582268A CN104365621A CN 104365621 A CN104365621 A CN 104365621A CN 201410582268 A CN201410582268 A CN 201410582268A CN 104365621 A CN104365621 A CN 104365621A
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- sodium salt
- bentazone
- fomesafen
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Abstract
The invention relates to the technical field of pesticides and in particular relates to a herbicidal composition as well as a preparation and application thereof. The herbicidal composition comprises bentazone sodium salt and fomesafen sodium salt. The herbicidal composition has the beneficial effects that the ratio of bentazone sodium salt to fomesafen sodium salt is (1 to 95)-(95 to 1), and the co-toxicity coefficient is more than 120, so that the herbicidal composition has synergistic effects; field experiment results show that the comprehensive control effect of the herbicidal preparation of bentazone sodium salt and fomesafen sodium salt on broadleaf weeds is over 96% 30 days after the herbicidal preparation is applied and is obviously better than the control effects of single bentazone and single fomesafen, thereby indicating that the herbicide has synergistic control effects, can conduce to reducing the dose and the cost and is environment-friendly.
Description
Technical field
The present invention relates to technical field of pesticide, particularly a kind of Herbicidal combinations, preparation and application thereof.
Background technology
Soybean is the main oil crop of China, is again important non-staple food raw material, plays a part very important in our daily life.In recent years, the control of weeds in beans field was increasingly sophisticated, and reasonable selection beans field herbicidal has become the important technical links guaranteeing to keep the safety in production in beans field.
Siberian cocklebur, belongs to composite family annual herb plant.Call grey son, the achene of Siberian cocklebur, open country fall Soviet Union.Blazon all parts of the country.Mainly cause harm soybean, corn, wheat, sunflower, potato etc. in the north.Mainly cause harm fruit tree in south.The host of the insects such as cotten aphid, cotton bollworm, cotton golden steel brill in addition.
Field thistle is mesophytes, and adaptability is very strong, and all can grow under any weather conditions, general all living creatures, near abandoned land, arable land, roadside, village, is common weeds.
Mostly there is the features such as contaminated environment, consumption is large, residual periodicity is long in the soybean field herbicide used at present, is unfavorable for crop rotation, and can affects the growth of succession crop.In view of the foregoing, a kind of environmental protection is provided, the environment-friendly type complex weedicide that efficient, consumption is few has realistic meaning.
Summary of the invention
In view of this, the invention provides a kind of Herbicidal combinations, preparation and application thereof.This Herbicidal combinations bentazone sodium salt and fomesafen sodium salt proportioning are between 1:95-95:1, and co-toxicity coefficient is greater than 120, has synergistic effect.As can be seen from field experiment result, dispenser is after 30 days, the herbicidal formulations control broad leaved weed integrated control effect of bentazone sodium salt of the present invention and fomesafen sodium salt, more than 96%, shows that described weed killer herbicide control efficiency has synergistic effect, can reduce dose, reduces cost, environmentally friendly.
In order to realize foregoing invention object, the invention provides following technical scheme:
The invention discloses a kind of Herbicidal combinations, comprise bentazone sodium salt and fomesafen sodium salt.
Bentazone is a kind of application low toxicity herbicide widely, and its main effect model is realized by bentazone sodium salt, is foliar herbicide after a kind of contact killing type seedling.Can be decomposed by the microorganisms at 8 ~ 16 weeks after this weed killer herbicide dispenser, environmentally friendly pollution-free, soybean, peanut, wheat, seeding corn and other crops can be widely used in.
Fomesafen is a kind of diphenyl ether herbicide with high selectivity, be mainly used in the broad leaved weed preventing and kill off soybean, peanut and other crops, make it dead rapidly by weeds root absorption, there is efficient, low toxicity, to the feature of plant height safety, at present for the desirable weed killer herbicide of beans field, Peanut Fields, liking simultaneously also extensively by peasant user.
On Vehicles Collected from Market bentazone be mainly 25%, 480g/L bentazone aqua, fomesafen is mainly: 18%, 25% aqua, 10%, 20% missible oil and 12.8% microemulsion.All there is restricted levels in these formulations, can not make the formulation of high-load, thus cause the shortcoming that preparation consumption is large.All there is hazardous solvent in missible oil and micro emulsion, contaminated environment, residual periodicity can be caused long, thus be unfavorable for environmental protection.
In order to improve these shortcomings, the present inventor has invented a kind of novel formula by a large amount of tests, and it mainly carries out composite with bentazone sodium salt and fomesafen sodium salt.
In some embodiments of the invention, the mass ratio of described bentazone sodium salt and fomesafen sodium salt is 1:95 ~ 95:1.
In some embodiments of the invention, the mass ratio of described bentazone sodium salt and fomesafen sodium salt is 1:30 ~ 30:1.
In some embodiments of the invention, the mass ratio of described bentazone sodium salt and fomesafen sodium salt is 1:5 ~ 5:1.
As preferably, the mass ratio of described bentazone sodium salt and fomesafen sodium salt is 95:1,30:1,5:1,1:1,1:5,1:30 or 1:95.
Present invention also offers the application of above-mentioned Herbicidal combinations in control soybean weeds.
In some embodiments of the invention, described soybean weeds is broad leaved weed.
In some embodiments of the invention, described soybean weeds is Siberian cocklebur, field thistle or chickweed.
Present invention also offers a kind of herbicidal formulations, comprise acceptable auxiliary agent and/or filler in above-mentioned Herbicidal combinations and agricultural chemicals.In agricultural chemicals acceptable auxiliary agent or filler the present invention in this no limit, arrange in pairs or groups the technical scheme that formed all within protection scope of the present invention with Herbicidal combinations provided by the invention.
In some embodiments of the invention, the mass percentage of described Herbicidal combinations is 90 ~ 96%.
As preferably, the mass percentage of described Herbicidal combinations is 90%, 93% or 96%.
In some embodiments of the invention, described auxiliary agent is that Buddhist Sha is graceful.
Buddhist Sha graceful (Surfactin) is a kind of All Pure Nature cyclic lipopeptide biosurfactant, has extremely strong emulsifying capacity, good dispersion of calcium soap, good foaming properties, preferably thermal stability.Its critical micelle concentration (CMC) is about 8.99 × 10
-5γ=28.968mN/m, can keep the long period (60d) under high temperature (80 DEG C) containing Sha's graceful olive oil emulsion of ancient India, melting range is between 85 ~ 90 DEG C, decomposition temperature is 271.0 DEG C ~ 274.9 DEG C, and this auxiliary agent has water-soluble preferably, also can do solubilizer and use.Therefore this auxiliary agent have pollution-free, stable in pesticide system, emulsify well, infiltration capacity are strong, consumption is few, improve the various features such as drug effect, is a kind of novel environment-friendly pesticide auxiliary agent.
The present invention adopts novel environment friendly auxiliary agent Buddhist Sha graceful, thus the present invention can be accomplished, and preparation effective content is high, and consumption is few, easy to use, and without any organic solvent in formula, to environment without features such as any pollutions.
In some embodiments of the invention, in described herbicidal formulations, Sha's graceful mass percentage of ancient India is 1% ~ 3%.
In some embodiments of the invention, described filler is Na
2cO
3.
In some embodiments of the invention, the formulation of described herbicidal formulations is soluble powder.
Herbicidal combinations provided by the invention, after Soybean Field seedling, weeds 2 ~ 4 leaf phase carries out being watered spray pesticide, also can adopt other operation techniques in agricultural application.
The invention discloses a kind of Herbicidal combinations, comprise bentazone sodium salt and fomesafen sodium salt.This Herbicidal combinations bentazone sodium salt and fomesafen sodium salt proportioning are between 1:95-95:1, and co-toxicity coefficient is greater than 120, has synergistic effect.As can be seen from field experiment result, dispenser is after 30 days, the herbicidal formulations control broad leaved weed integrated control effect of bentazone sodium salt of the present invention and fomesafen sodium salt is more than 96%, significantly better than bentazone and fomesafen single dose preventive effect, show that described weed killer herbicide control efficiency has synergistic effect, dose can be reduced, reduce cost, environmentally friendly.
Embodiment
The invention discloses a kind of Herbicidal combinations, preparation and application thereof, those skilled in the art can use for reference present disclosure, and suitable improving technique parameter realizes.Special needs to be pointed out is, all similar replacements and change apparent to those skilled in the art, 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 not depart from content of the present invention, spirit and scope methods and applications as herein described are changed or suitably change with combination, realize and apply the technology of the present invention.
In Herbicidal combinations provided by the invention, preparation and application thereof, former medicine used, auxiliary agent and filler all can be buied by market.
Below in conjunction with embodiment, set forth the present invention further:
The composite test of embodiment 1
For understanding bentazone sodium salt and the composite synergy to weeds of fomesafen sodium salt further, the present inventor is to bentazone sodium salt and fomesafen sodium salt is composite has carried out formulation screening test.
Test method: arrange different ratio according to mixture object, each proportioning arranges 5 ~ 7 concentration gradients, Siberian cocklebur and field thistle is cultured to 5 ~ 6 leaf phases for subsequent use.After the weeds cauline leaf process of the number of finishing, calculate preventive effect, then calculate inhibition concentration EC by method of least squares
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; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80< co-toxicity coefficient (CTC) <120 shows as summation action.
Actual measurement toxicity index (ATI)=(standard agent EC
50/ reagent agent EC
50) × 100
Theoretical toxicity index (the TTI)=percentage composition of A (in the toxicity index × mixture of the A)+percentage composition of B (in the toxicity index × mixture of B)
Co-toxicity coefficient (CTC)=[the theoretical toxicity index (TTI) of mixture actual measurement toxicity index (ATI)/mixture] × 100
Table 1 different ratio bentazone sodium salt and fomesafen sodium salt measure the synergy of Siberian cocklebur
Table 2 different ratio bentazone sodium salt and fomesafen sodium salt measure the synergy of field thistle
Measurement result shows, bentazone sodium salt and fomesafen sodium salt proportioning are between 1:95-95:1, and co-toxicity coefficient is greater than 120, has synergistic effect, and as can be seen from table 1, table 2, bentazone sodium salt and fomesafen sodium salt optimum ratio are 5:1.
The preparation of embodiment 2 herbicidal formulations
96% bentazone fomesafen sodium salt soluble powder
Bentazone sodium salt: 95%
Fomesafen sodium salt: 1%
Buddhist Sha is graceful: 3%
Na
2cO
3: supply 100%
Compound method: mix entering in blender after above-mentioned each material in proportion coarse crushing, more namely obtain 96% bentazone fomesafen sodium salt soluble powder after air-flow crushing.
The preparation of embodiment 3 herbicidal formulations
93% bentazone fomesafen sodium salt soluble powder
Bentazone sodium salt: 90%
Fomesafen sodium salt: 3%
Buddhist Sha is graceful: 1%
Na
2cO
3: supply 100%
Compound method: mix entering in blender after above-mentioned each material in proportion coarse crushing, more namely obtain 93% bentazone fomesafen sodium salt soluble powder after air-flow crushing.
The preparation of embodiment 4 herbicidal formulations
90% bentazone fomesafen sodium salt soluble powder
Bentazone sodium salt: 75%
Fomesafen sodium salt: 15%
Buddhist Sha is graceful: 2%
Na
2cO
3: supply 100%
Compound method: mix entering in blender after above-mentioned each material in proportion coarse crushing, more namely obtain 90% bentazone fomesafen sodium salt soluble powder after air-flow crushing.
The preparation of embodiment 5 herbicidal formulations
96% bentazone fomesafen sodium salt soluble powder
Bentazone sodium salt: 48%
Fomesafen sodium salt: 48%
Buddhist Sha is graceful: 3%
Na
2cO
3: supply 100%
Compound method: mix entering in blender after above-mentioned each material in proportion coarse crushing, more namely obtain 96% bentazone fomesafen sodium salt soluble powder after air-flow crushing.
The preparation of embodiment 6 herbicidal formulations
90% bentazone fomesafen sodium salt soluble powder
Bentazone sodium salt: 15%
Fomesafen sodium salt: 75%
Buddhist Sha is graceful: 3%
Na
2cO
3: supply 100%
Compound method: mix entering in blender after above-mentioned each material in proportion coarse crushing, more namely obtain 90% bentazone fomesafen sodium salt soluble powder after air-flow crushing.
The preparation of embodiment 7 herbicidal formulations
93% bentazone fomesafen sodium salt soluble powder
Bentazone sodium salt: 3%
Fomesafen sodium salt: 90%
Buddhist Sha is graceful: 3%
Na
2cO
3: supply 100%
Compound method: mix entering in blender after above-mentioned each material in proportion coarse crushing, more namely obtain 93% bentazone fomesafen sodium salt soluble powder after air-flow crushing.
The preparation of embodiment 8 herbicidal formulations
96% bentazone fomesafen sodium salt soluble powder
Bentazone sodium salt: 1%
Fomesafen sodium salt: 95%
Buddhist Sha is graceful: 3%
Na
2cO
3: supply 100%
Compound method: mix entering in blender after above-mentioned each material in proportion coarse crushing, more namely obtain 96% bentazone fomesafen sodium salt soluble powder after air-flow crushing.
Embodiment 9: field control effectiveness test
Except the field control effectiveness test of Soybean Field annual weed.
Reagent agent and dispenser dosage:
1,96% bentazone fomesafen sodium salt soluble powder (95% bentazone sodium salt: 1% fomesafen sodium salt), 15g effective content/667m
2(1#);
2,93% bentazone fomesafen sodium salt soluble powder (90% bentazone sodium salt: 3% fomesafen sodium salt), 15g effective content/667m
2(2#);
3,90% bentazone fomesafen sodium salt soluble powder (75% bentazone sodium salt: 15% fomesafen sodium salt), 15g effective content/667m
2(3#);
4,96% bentazone fomesafen sodium salt soluble powder (48% bentazone sodium salt: 48% fomesafen sodium salt), 15g effective content/667m
2(4#);
5,90% bentazone fomesafen sodium salt soluble powder (15% bentazone sodium salt: 75% fomesafen sodium salt), 15g effective content/667m
2(5#);
6,93% bentazone fomesafen sodium salt soluble powder (3% bentazone sodium salt: 90% fomesafen sodium salt), 15g effective content/667m
2(6#);
7,96% bentazone fomesafen sodium salt soluble powder (1% bentazone sodium salt: 95% fomesafen sodium salt), 15g effective content/667m
2(7#);
Contrast dosage and formulation rate:
8,25% amine fluoride grass ether aqua, 15g effective content/667m
2(8#);
9,480g/L bentazone aqua, 15g effective content/667m
2(9#);
Spraying time: on April 25th, 2014, soybean emerged for 4 ~ 5 leaf phases, weeds 5 ~ 6 leaf phase dispenser.
Test site: Cuo Zhen town, Feidong County, Hefei City, Anhui Province
Result of the test: in table 3.
Table 3 control of weeds is tested
As can be seen from experimental result, dispenser is after 30 days, the herbicidal formulations control broad leaved weed integrated control effect of bentazone sodium salt of the present invention and fomesafen sodium salt is more than 96%, significantly better than bentazone and fomesafen single dose preventive effect, show that described weed killer herbicide control efficiency has synergistic effect, dose can be reduced, reduce cost, environmentally friendly.
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 (10)
1. a Herbicidal combinations, is characterized in that, comprises bentazone sodium salt and fomesafen sodium salt.
2. Herbicidal combinations according to claim 1, is characterized in that, the mass ratio of described bentazone sodium salt and fomesafen sodium salt is 1:95 ~ 95:1.
3. Herbicidal combinations according to claim 1, is characterized in that, the mass ratio of described bentazone sodium salt and fomesafen sodium salt is 1:30 ~ 30:1.
4. Herbicidal combinations according to claim 1, is characterized in that, the mass ratio of described bentazone sodium salt and fomesafen sodium salt is 1:5 ~ 5:1.
5. the application of the Herbicidal combinations according to any one of Claims 1-4 in control soybean weeds.
6. application according to claim 5, is characterized in that, described soybean weeds is broad leaved weed.
7. a herbicidal formulations, is characterized in that, comprises acceptable auxiliary agent and/or filler in Herbicidal combinations as described in any one of Claims 1-4 and agricultural chemicals.
8. herbicidal formulations according to claim 7, is characterized in that, the mass percentage of described Herbicidal combinations is 90 ~ 96%.
9. herbicidal formulations according to claim 7, is characterized in that, described auxiliary agent is that Buddhist Sha is graceful.
10. herbicidal formulations according to claim 9, is characterized in that, in described herbicidal formulations, Sha's graceful mass percentage of ancient India is 1% ~ 3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410582268.0A CN104365621A (en) | 2014-10-27 | 2014-10-27 | Herbicidal composition as well as preparation and application thereof |
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|---|---|---|---|
| CN201410582268.0A CN104365621A (en) | 2014-10-27 | 2014-10-27 | Herbicidal composition as well as preparation and application thereof |
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| CN104365621A true CN104365621A (en) | 2015-02-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115299455A (en) * | 2022-09-14 | 2022-11-08 | 江苏鼎越科技有限公司 | Soluble solution of bentazone, sethoxydim and fomesafen and preparation method thereof |
| CN118177208A (en) * | 2024-05-20 | 2024-06-14 | 安达市海纳贝尔化工有限公司 | High-quality bentazone powder and preparation method thereof |
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| CN1745633A (en) * | 2005-10-11 | 2006-03-15 | 江苏长青农化股份有限公司 | Weeding ternary composition containing herbicide bentazone, imazethapyr and diphenyl ether |
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2014
- 2014-10-27 CN CN201410582268.0A patent/CN104365621A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1745633A (en) * | 2005-10-11 | 2006-03-15 | 江苏长青农化股份有限公司 | Weeding ternary composition containing herbicide bentazone, imazethapyr and diphenyl ether |
Non-Patent Citations (3)
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|---|
| 卢向阳 等: "氟磺胺草醚对作物的药害及解决措施", 《农药》, vol. 45, no. 5, 31 May 2006 (2006-05-31), pages 350 - 352 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115299455A (en) * | 2022-09-14 | 2022-11-08 | 江苏鼎越科技有限公司 | Soluble solution of bentazone, sethoxydim and fomesafen and preparation method thereof |
| CN118177208A (en) * | 2024-05-20 | 2024-06-14 | 安达市海纳贝尔化工有限公司 | High-quality bentazone powder and preparation method thereof |
| CN118177208B (en) * | 2024-05-20 | 2024-07-23 | 安达市海纳贝尔化工有限公司 | High-quality bentazone powder and preparation method thereof |
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Application publication date: 20150225 |