CN103070185A - Herbicidal water dispersible granule for wheat fields - Google Patents
Herbicidal water dispersible granule for wheat fields Download PDFInfo
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- CN103070185A CN103070185A CN2013100397952A CN201310039795A CN103070185A CN 103070185 A CN103070185 A CN 103070185A CN 2013100397952 A CN2013100397952 A CN 2013100397952A CN 201310039795 A CN201310039795 A CN 201310039795A CN 103070185 A CN103070185 A CN 103070185A
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- water dispersible
- florasulam
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- methyl
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Abstract
A herbicidal water dispersible granule for wheat fields is prepared with the following components according to percentage by weight: 5 to 15 percent of florasulam; 25 to 30 percent of bensulfuron methyl; 4 to 10 percent of dispersant; 1 to 3 percent of wetting agent; 3 to 5 percent of disintegrating agent; 2 to 3 percent of binder; and the balance of carrier. The effect of the herbicide is remarkable, and compared with single florasulam agent and single bensulfuron methyl agent, the preparation is more environment-friendly, cannot easily get on fire and is safer in the process of transportation, is low in dosage and cost, can enhance the monocotyledonous and dicotyledonous weed control effect in fields, the fresh weight control effect and the comprehensive fresh weight control effect, and is safe for crops in fields. After applied each time, the herbicidal water dispersible granule can control weeds in the whole growth period of crops, is safe for next-stubble crops, and is an ideal herbicide for treating the postemergence stem leaves of wheat at present.
Description
Technical field
The present invention relates to technical field of pesticide, be specifically related to a kind of for wheat paddock agricultural herbicide water-dispersible granules.
Background technology
The florasulam chemical name is 2', 6'-two fluoro-5-ethyoxyl-8-fluorine [1,2,4] triazoles [1,5-C] pyrimidine-2-sulfonanilides, and molecular formula is C12H8F3N503S, molecular weight is 359.28.Florasulam is triazolopyrimidine sulfonamides super-high-efficient weed killer herbicide, and wheat crops is had high selectivity, is applicable to wheat paddock and prevents and kill off broad leaved weed.Florasulam is inner-adsorption conduction-type herbicide, can conduct to the weeds complete stool, thereby herbicide is thorough, can not recur.And efficacy stability at low temperatures, even still can guarantee to stablize drug effect in the time of 2 ℃, this point is that other weed killer herbicides are incomparable.
Bensulfuron-methyl is the selectivity inner-adsorption conduction-type herbicide, medicament rapidly diffusion in water is transferred to other position after the dispenser after weeds root and blade absorption, hinders its chain amino acid biosynthesis, the susceptible weeds GF is obstructed, tender tissue turns to be yellow too early, suppresses leaf section, root growth.Be applicable to the rice field and prevent and kill off life in 1 year and perennial broadleaf weed and nutgrass flatsedge, behind the crop bud, before the weeds bud and dispenser behind the bud, respond well to Monochoria vaginalis, pondweed, mexicana etc. and Sha section weeds (fescue, difformed galingale herb, Herba Cyperi Glomerati etc.).
Wheat is a kind of the extensive gramineous plants of plantation all over the world, be distribute the widest, area is maximum, gross output is the highest, the volume of trade at most, one of cereal crops that nutritive value is the highest, its output is cereal crops gross yield the second in the world, is only second to corn.Affect the main weeds of wheat yield, the wheat paddock main weeds has: broadcast ma wormwood artemisia, lamb's-quarters, shepherd's purse, corn gromwell, conical silene herb, Veronica, field thistle, clearvers, chickweed, common vetch, amur foxtail, wild oat, Triticum tauschii, bromegrass, Wang grass etc.The weed killer herbicide of the management of weeds that present wheat paddock is main is 2.4 d butyl esters, florasulam etc., because long-term the use, resistance improves, and causes dosage large, and environmental pollution has also increased peasant's dispenser cost.And florasulam and the composite eliminating weed in wheat field of bensulfuron-methyl seldom has a report.
Summary of the invention
In view of this, the invention provides a kind of wheat paddock weeding water dispersible granules, it is prepared from by weight percentage by following component: florasulam 5～15%; Bensulfuron-methyl 25～30%; Dispersant 4～10%; Wetting agent 1～3%; Disintegrant 3～5%; Adhesive 2～3%; Carrier complements to 100%.
Described dispersant is sodium lignin sulfonate or alkyl naphthalene sulfonic acid condensation polymer sodium salt (D-425).
Described wetting agent is EFW or neopelex (DBS-na).
Described disintegrant is ammonium sulfate or sodium carbonate.
Described adhesive is polyvinyl alcohol or starch.
Described carrier is precipitated calcium carbonate or kaolin.
Wherein alkyl naphthalene sulfonic acid condensation polymer sodium salt (D-425) is the dispersion of Akzo Nobel N.V.'s Development and Production, and its active component is greater than 88%, pH value 7.5-10.0.
EFW is the wetting agent of Akzo Nobel N.V.'s Development and Production, it is the mixture of alkylnaphthalene sulfonate and anion wetting agent, and active component is wetability in the Morwet series, the best product of permeability greater than 95%, its characteristics are exactly can quick humidification, help the disintegration of particle.
Neopelex (DBS-na) is a kind of efficient wetting agent, has good antistatic effect, and is more stable in the pH value scope, its biological degradability＞90%.
Other sodium lignin sulfonate, ammonium sulfate, sodium carbonate, precipitated calcium carbonate, kaolin etc. are kind of selling in constant demand on the market.
The result shows according to field control effectiveness test, behind the florasulam bensulfuron-methyl water dispersible granules dispenser 15d of the present invention, contain respectively 30%, 35%, 40%, 45% florasulam bensulfuron-methyl water dispersible granules to the preventive effect of monocotyledon weed, broadleaf weed all more than 90%.Compare with single dose, all improved preventive effect, expansion herbicide spectrum to weeds.Calculate according to the significant difference formula
Wheat paddock weeding water dispersible granules provided by the invention is compared its sig value P＜0.01 with florasulam and bensulfuron-methyl single dose, expression has utmost point significant difference.Behind the dispenser 30d, contain respectively 30%, 35%, 40%, 45% florasulam bensulfuron-methyl water dispersible granules the preventive effect of monocotyledon weed, broadleaf weed is 100%, compare with single dose, all improved the preventive effects of weeds and lasting period, fresh weight preventive effect, comprehensive fresh weight preventive effect, had utmost point significant difference (P＜0.01);
Comprehensive above-mentioned result of the test, herbicide effects of the present invention is remarkable, compares with florasulam, bensulfuron-methyl single dose, has all improved preventive effect, fresh weight preventive effect, comprehensive fresh weight preventive effect to the single, double cotyledon weeds of wheat paddock, to field crops safety.In addition, preparation of the present invention is to more environmental protection of environment, is difficult on fire saferly in the transportation, and consumption is low, and cost is low, preventive effect, fresh weight preventive effect, the comprehensive fresh weight preventive effect of the single, double cotyledon weeds in field is improved, to field crops safety.A dispenser can be prevented and kill off the weeds of crop in whole breeding time, to second stubble crop safety.It is at present comparatively ideal a kind of weed killer herbicide for cauline leaf processing behind the wheat seedling.
Embodiment
The invention discloses a kind of weeding water dispersible granules, those skilled in the art can use for reference this paper content, suitably improve technological parameter and realize.Special needs to be pointed out is that all similarly replace and change apparent to those skilled in the art, they all are deemed to be included in the present invention.Method of the present invention and application are described by preferred embodiment, the related personnel obviously can change or suitably change and combination methods and applications as herein described within not breaking away from content of the present invention, spirit and scope, realizes and use the technology of the present invention.
Below in conjunction with embodiment, further set forth the present invention:
Florasulam 5～15%; Bensulfuron-methyl 25～30%; Dispersant 4～10%; Wetting agent 1～3%; Disintegrant 3～5%; Adhesive 2～3%; Carrier complements to 100%.
Described dispersant is sodium lignin sulfonate or alkyl naphthalene sulfonic acid condensation polymer sodium salt (D-425).
Described wetting agent is EFW or neopelex (DBS-na).
Described disintegrant is ammonium sulfate or sodium carbonate.
Described adhesive is polyvinyl alcohol or starch.
Described carrier is precipitated calcium carbonate or kaolin.
Embodiment 1:
Take by weighing florasulam 5kg, bensulfuron-methyl 25kg, D-425 are that 6kg, EFW are 2kg, ammonium sulfate 5kg, polyvinyl alcohol 2kg and kaolin 55kg, through fully mixing, air-flow crushing, mixing, granulation, drying and screening, get dispersible granule.
Embodiment 2:
Take by weighing florasulam 10kg, bensulfuron-methyl 25kg, sodium lignin sulfonate 10kg, DBS-na are 1.5kg, sodium carbonate 3kg, starch 2kg and precipitated calcium carbonate 53.5kg, through fully mixing, air-flow crushing, mixing, granulation, drying and screening, get dispersible granule.
Embodiment 3:
Take by weighing florasulam 10kg, bensulfuron-methyl 30kg, sodium lignin sulfonate 4kg, DBS-na are 3kg, sodium carbonate 3kg, starch 2kg and precipitated calcium carbonate 48kg, through fully mixing, air-flow crushing, mixing, granulation, drying and screening, get dispersible granule.
Embodiment 4:
Take by weighing florasulam 15kg, bensulfuron-methyl 30kg, sodium lignin sulfonate 4kg, DBS-na are 1kg, sodium carbonate 5kg, starch 3kg and kaolin 42kg, through fully mixing, air-flow crushing, mixing, granulation, drying and screening, get dispersible granule
Embodiment 5: field control effectiveness test
40% florasulam bensulfuron-methyl water dispersible granules among 30% florasulam bensulfuron-methyl water dispersible granules and the embodiment 3 among the embodiment 1 is used for preventive effect winter wheat field weeds tests:
The dispenser place: the live wheat paddock in recklessly large Feng Lenongization proving ground, the capital of the ancient state of Chu, Baojing village, Shucheng County, Anhui Province Hang Bu town, front stubble is idle field.Fertility uniformity experimental field, physical features is smooth.The inclined to one side grittiness of soil, middle fertility, humidity is moderate.Sowing winter wheat (peaceful wheat 16), the main broadleaf weed master of winter wheat field has clearvers, chickweed, shepherd's purse etc., is evenly distributed.
Spraying time: winter wheat tillering stage, the concrete time is dispenser in afternoon on March 12 in 2011.
The dispenser condition: dispenser was fine the same day, 5 ℃～20 ℃ of temperature.
Dispenser dosage and mode: formulation rate 10g/667m
2, liquid adopts the dilution method preparation of two steps.Medical instruments adopt workers and peasants-16 knapsack sprayer, dress fan type shower nozzle, and artificial even spraying, water consumption is 40kg/667m
2
Experimental group: be divided into water dispersible granules experimental group, wetting powder experimental group; Wherein, in the water dispersible granules experimental group according to 10g/667m
2Dosage spray 40% florasulam bensulfuron-methyl water dispersible granules among the present invention's 30% florasulam bensulfuron-methyl water dispersible granules and the embodiment 3, the suspending agent experimental group is according to 5% florasulam 30ml/667m
2, 30% bensulfuron-methyl 15g/667m
2Dosage spray (commercially available).
Blank group: spray clear water according to equal consumption.
Test method: each experimental group and blank group all repeat 4 times, and each experimental group and blank group take respectively residential quarter, experimental field area 45m2, residential quarter randomized arrangement.Before the dispenser, in the residential quarter of each experimental group and blank group, get at random 4 points; Investigate respectively weeds kind, leaf age and radix.Behind dispenser 15d, the 30d, record respectively each experimental group and blank group residential quarter survival number (strain/m
2), calculate weeds preventive effects (%); Behind the dispenser 30d, extract weeds and take by weighing fresh weight (g/m
2), calculate fresh weight preventive effect (%).
Then calculate according to the significant difference formula
Wheat paddock weeding water dispersible granules provided by the invention is compared its sig value P＜0.01 with florasulam and bensulfuron-methyl single dose, expression has utmost point significant difference.
The herbicidal effect of each experimental group sees Table 1.
Each formulation herbicidal effect of table 1 florasulam bensulfuron-methyl:
As shown in Table 1, behind the dispenser 15d, the 30% florasulam bensulfuron-methyl water dispersible granules that the embodiment of the invention 1 makes to the preventive effect of clearvers, chickweed all more than 90%, and 5% florasulam suspending agent to the preventive effect of clearvers, chickweed more than 80%, 30% bensulfuron-methyl wetting powder to the preventive effect of clearvers, chickweed about 80%.Product of the present invention is compared with each single dose, has not only improved the preventive effect to weeds, has also enlarged the herbicide spectrum simultaneously, has utmost point significant difference (P＜0.01).
Behind the dispenser 30d, the 30% florasulam bensulfuron-methyl water dispersible granules agent that the embodiment of the invention 1 makes is 100% to the preventive effect of clearvers, chickweed, and 5% florasulam suspending agent to the preventive effect of clearvers, chickweed more than 90%, 30% bensulfuron-methyl wetting powder to the preventive effect of clearvers, chickweed about 90%.Product of the present invention is compared with each single dose, has not only improved the preventive effect to weeds, has also enlarged the herbicide spectrum simultaneously, has utmost point significant difference (P＜0.01).
Dispenser 30d extracts weighing fresh weight behind the weeds, the 30% florasulam bensulfuron-methyl water dispersible granules that the embodiment of the invention 1 makes is 100% to the fresh weight preventive effect of clearvers, chickweed, 5% florasulam to the fresh weight preventive effect of clearvers, chickweed more than 90%, 30% bensulfuron-methyl wetting powder to the fresh weight preventive effect of clearvers, chickweed more than 90%.Compare with each single dose, product of the present invention has not only improved the fresh weight preventive effect to weeds, has also enlarged the herbicide spectrum simultaneously, has utmost point significant difference (P＜0.01).
Behind the dispenser 15d, the 40% florasulam bensulfuron-methyl water dispersible granules agent that the embodiment of the invention 3 makes to the preventive effect of clearvers, chickweed all more than 95%, 5% florasulam suspending agent to the preventive effect of clearvers, chickweed more than 80%, 30% bensulfuron-methyl wetting powder to the preventive effect of clearvers, chickweed about 80%.Compare with each single dose, product of the present invention has not only improved the preventive effect to weeds, has also enlarged the herbicide spectrum simultaneously, has utmost point significant difference (P＜0.01).
Behind the dispenser 30d, the 40% florasulam bensulfuron-methyl water dispersible granules agent that the embodiment of the invention 3 makes is 100% to the preventive effect of clearvers, chickweed, 5% florasulam to the preventive effect of clearvers, chickweed about 90%, 30% bensulfuron-methyl wetting powder to the preventive effect of clearvers, chickweed about 90%.Compare with each single dose, product of the present invention has not only improved the preventive effect to weeds, has also enlarged the herbicide spectrum simultaneously, has utmost point significant difference (P＜0.01).
Dispenser 30d extracts weighing fresh weight behind the weeds, the 40% florasulam bensulfuron-methyl water dispersible granules agent that the embodiment of the invention 3 makes is 100% to the fresh weight preventive effect of clearvers, chickweed, 5% florasulam suspending agent to the fresh weight preventive effect of clearvers, chickweed more than 90%, 30% bensulfuron-methyl wetting powder to the fresh weight preventive effect of clearvers, chickweed more than 90%.Compare with each single dose, product of the present invention has not only improved the fresh weight preventive effect to weeds, has also enlarged the herbicide spectrum simultaneously, has utmost point significant difference (P＜0.01).
Behind the dispenser 30d, each experimental group all has no adverse effects to the heading of wheat early growth and later stage, with the difference of blank group not significantly (P＞0.05).Therefore, the present invention's 30% florasulam bensulfuron-methyl water dispersible granules and 40% florasulam bensulfuron-methyl water dispersible granules are to wheat safety.
Comprehensive above-mentioned result of the test shows that florasulam bensulfuron-methyl water dispersible granules is compared with florasulam suspending agent, bensulfuron-methyl wetting powder, preventive effect, the fresh weight preventive effect of weeds in field is improved, to field crops safety.
Embodiment 6:
Preventive effect winter wheat field weeds test with 45% florasulam bensulfuron-methyl water dispersible granules among 35% florasulam bensulfuron-methyl water dispersible granules and the embodiment 4 among the embodiment 2:
The dispenser place: Luohe City Yancheng District king shop, Henan Province village school wheatland, front stubble is corn field.Fertility uniformity experimental field, physical features is smooth.The inclined to one side grittiness of soil, middle fertility, humidity is moderate.Sowing wheat (general wheat No. 8), the main clearvers of wheat paddock, Veronica, shepherd's purse etc. are evenly distributed.
Spraying time: in 3 ~ 4 leaf phases of winter wheat, the concrete time is dispenser in afternoon on November 21 in 2011.
The dispenser condition: dispenser was fine the same day, 5 ℃～20 ℃ of temperature.
Dispenser dosage and mode: formulation rate 10g/667m
2, liquid adopts the dilution method preparation of two steps.Medical instruments adopt workers and peasants-16 knapsack sprayer, dress fan type shower nozzle, and artificial even spraying, water consumption is 40kg/667m
2
Experimental group: be divided into water dispersible granules experimental group, wetting powder experimental group; Wherein, in the water dispersible granules experimental group according to 10g/667m
2Dosage spray in the embodiment of the invention 2 45% florasulam bensulfuron-methyl water dispersible granules in the 35% florasulam bensulfuron-methyl water dispersible granules and embodiment 4, the wetting powder experimental group is according to 5% florasulam suspending agent 30ml/667m
2, 30% bensulfuron-methyl 15g/667m
2Dosage spray (commercially available).
Blank group: spray clear water according to equal consumption.
Test method: each experimental group and blank group all repeat 4 times, and each experimental group and blank group take respectively residential quarter, experimental field area 35m
2, the residential quarter randomized arrangement.Before the dispenser, in the residential quarter of each experimental group and blank group, get at random 4 points; Investigate respectively weeds kind, leaf age and radix.Behind dispenser 15d, the 30d, record respectively each experimental group and blank group residential quarter survival number (strain/m
2), calculate weeds preventive effects (%); Behind the dispenser 30d, extract weeds and take by weighing fresh weight (g/m
2), calculate fresh weight preventive effect (%).
The herbicidal effect of each experimental group sees Table 2.
Each formulation herbicidal effect of table 2 florasulam bensulfuron-methyl
Can find out from upper table 2, the preventive effect winter wheat field weeds of 35% florasulam bensulfuron-methyl water dispersible granules of the present invention and 45% florasulam bensulfuron-methyl water dispersible granules, dispenser all reached more than 96% after 15 days, and after 30 days, then reach 100% preventive effect, apparently higher than the preventive effect of florasulam and bensulfuron-methyl single dose.
The above only is preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvement and modification, these improvement and modification also should be considered as protection scope of the present invention.
Claims (6)
1. a wheat paddock weeding water dispersible granules is characterized in that: be prepared from by weight percentage by following component: florasulam 5～15%; Bensulfuron-methyl 25～30%; Dispersant 4～10%; Wetting agent 1～3%; Disintegrant 3～5%; Adhesive 2～3%; Carrier complements to 100%.
2. a kind of wheat paddock weeding water dispersible granules according to claim 1, it is characterized in that: described dispersant is sodium lignin sulfonate or alkyl naphthalene sulfonic acid condensation polymer sodium salt.
3. a kind of wheat paddock weeding water dispersible granules according to claim 1, it is characterized in that: described wetting agent is EFW or neopelex.
4. a kind of wheat paddock weeding water dispersible granules according to claim 1, it is characterized in that: described disintegrant is ammonium sulfate or sodium carbonate.
5. a kind of wheat paddock weeding water dispersible granules according to claim 1, it is characterized in that: described adhesive is polyvinyl alcohol or starch.
6. a kind of wheat paddock weeding water dispersible granules according to claim 1, it is characterized in that: described carrier is precipitated calcium carbonate or kaolin.
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|---|---|---|---|
| CN201310039795.2A CN103070185B (en) | 2013-01-31 | 2013-01-31 | Herbicidal water dispersible granule for wheat fields |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103518780A (en) * | 2013-09-05 | 2014-01-22 | 江苏东宝农药化工有限公司 | Novel herbicide |
| CN108041043A (en) * | 2018-02-02 | 2018-05-18 | 陕西上格之路生物科学有限公司 | A kind of ternary weeding composition containing diflufenican |
| CN109380249A (en) * | 2018-12-03 | 2019-02-26 | 浙江中山化工集团股份有限公司 | A kind of herbicide composition for wheat field |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005092101A2 (en) * | 2004-03-26 | 2005-10-06 | Syngenta Participations Ag | A herbicidal combination |
| CN101675739A (en) * | 2004-12-17 | 2010-03-24 | 株式会社Lg生命科学 | synergistic herbicidal compositions |
-
2013
- 2013-01-31 CN CN201310039795.2A patent/CN103070185B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005092101A2 (en) * | 2004-03-26 | 2005-10-06 | Syngenta Participations Ag | A herbicidal combination |
| CN101675739A (en) * | 2004-12-17 | 2010-03-24 | 株式会社Lg生命科学 | synergistic herbicidal compositions |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103518780A (en) * | 2013-09-05 | 2014-01-22 | 江苏东宝农药化工有限公司 | Novel herbicide |
| CN108041043A (en) * | 2018-02-02 | 2018-05-18 | 陕西上格之路生物科学有限公司 | A kind of ternary weeding composition containing diflufenican |
| CN109380249A (en) * | 2018-12-03 | 2019-02-26 | 浙江中山化工集团股份有限公司 | A kind of herbicide composition for wheat field |
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| CN103070185B (en) | 2014-04-23 |
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Address after: 231602 Hefei circular economy demonstration garden, Feidong County, Anhui Province Patentee after: Anhui Fengle Agrochemical Co., Ltd. Address before: 230031 three Town, Feixi County, Anhui, Hefei Patentee before: Anhui Fengle Agrochemical Co., Ltd. |