CN1303594A - Suspended ternary composition weedicide and its preparation method - Google Patents
Suspended ternary composition weedicide and its preparation method Download PDFInfo
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- CN1303594A CN1303594A CN 00100253 CN00100253A CN1303594A CN 1303594 A CN1303594 A CN 1303594A CN 00100253 CN00100253 CN 00100253 CN 00100253 A CN00100253 A CN 00100253A CN 1303594 A CN1303594 A CN 1303594A
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- atrazine
- acetochlor
- former medicine
- alachlor
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Abstract
The suspension tribasic compound weedicide contains 10-30 % of atrazine, 3-30 % of alachlor, 3-9.9% of acetochlor and emulsifier 2101, dispersing agent white carbon black, stabilizing agent calcium lignosulfonate and water. It possesses synergistic weeding action, can broaden weed-killing spectrum and raise weeding effect. It is simple in preparation method, easy to implement and can reduce environmental pollution.
Description
The invention belongs to pesticide field, relate in particular to a kind of ternary built weed killer herbicide and compound method thereof.
At present, at international and domestic weed killer herbicide many kinds are arranged as corn field etc.:
Alachlor (trade name drag-line Lasso, english common name alachlor, chemical name be alpha-chloro-2,6 '-diethyl-N-methoxyl methyl acetanil) can be used as the effective herbicide that has in the seeding corn and other crops field.The alachlor drug effect phase is longer, and the drug effect phase in soil is 4-8 week, can prevent and treat some broadleaf weed of grass family effectively.But it is lower to the preventive effect of weeds, and weeds strain preventive effect is 75.5%.
Acetochlor (acetochlor, chemical name is 2-ethyl-6-methyl-(ethoxyl methyl)-nitrogen-chloro acetanilide) can be used for multiple dry lands such as soybean, corn, can effectively prevent and kill off grassy weeds such as barnyard grass grass, lady's-grass, higher to weeds preventive effects such as ox chickweeds, be 89.3%, lower to the broadleaf weed preventive effect, be 74.4%, the total preventive effect of weeds is 82.9%.
Atrazine has another name called atrazine, and (it can be used for crops such as corn, Chinese sorghum, prevents and kill off annual gramineous weed and broad leaved weed, to corn safety for atrazine, chemical name α-chloro-4-ethylamino--6-isopropylamine base-1,3,5-triazines.Atrazine is poor slightly to the monocotyledon weed preventive effect, is 86.4%, and is higher to the broadleaf weed preventive effect; be 91.5%, poor to corn field main weeds lady's-grass preventive effect, the total preventive effect of weeds is 88.6%; and the atrazine stable performance, the longevity of residure is long, and poisoning is taken place in some late stubble sensitive crop regular meetings.
Chinese patent CN1042889C has reported a kind of Herbicidal suspension agent; this Herbicidal suspension agent is by the former medicine of atrazine solid; former medicine of Acetochlor liquid and emulsifier; antifreezing agent and water are formed; but atrazine; formed Herbicidal suspension agent such as Acetochlor strain preventive effect is low; and according to relevant document (the 6th academic Conference Papers collection of national weeds science; the sustainable improvement of Chinese farmland weed geared to the 21st century; Chinese Plants protection association divides association; grandson's tripod; Guangxi Nationalities Press; 1999; March; P301) report; Acetochlor can produce poisoning to corn; point out in the literary composition: field plot trial shows; Acetochlor; atrazine (atrazine)+Acetochlor and atrazine (atrazine)+alachlor are to list; the double leaf preventive effect all reaches 85%, but Acetochlor and atrazine (atrazine)+Acetochlor has influenced corn yield significantly, and underproduction amplitude is respectively 12% and 6.2%.
Purpose of the present invention is exactly to avoid the shortcoming of above-mentioned existing weed killer herbicide, provide a kind of remove anti-careless better effects if, safer to corn, again do not influence corn yield, to wheat noresidue poisoning, weeding wide spectrum, weed killer herbicide and compound method thereof easy to use.
A kind of suspended ternary composition weedicide of the present invention is characterized in that this weed killer herbicide is an active component with the former medicine of atrazine solid, the former medicine of Acetochlor liquid and the former medicine of alachlor, and the percetage by weight of each component is respectively:
The former medicine 10-30% of atrazine solid
The former medicine 3-9.9% of Acetochlor liquid
The former medicine 3-30% of alachlor
Suspended ternary composition weedicide of the present invention, be composited by above active component and emulsifier, dispersant, stabilizing agent and water, wherein emulsifier is 2101, and dispersant is that white carbon, stabilizing agent are calcium lignosulfonate, and the percetage by weight of each component is respectively:
Emulsifier 5-10%
Dispersant 0.2-1%
Stabilizing agent 1-2%
Water surplus
In order to make the better effect of suspended ternary composition weedicide of the present invention performance, with atrazine: alachlor: the weight ratio of Acetochlor is 1: 0.2-1: 0.1-0.4 is for well.
In order to make suspended ternary composition weedicide of the present invention easy to use, can add the urea of 1-7% percetage by weight therein at cold district.Owing to added urea, increased freeze proof effect, and it is fertilizer again, increased the fertility of soil, be of value to the growth of crop.
The present invention also provides the compound method of this suspended ternary composition weedicide: earlier the former medicine of atrazine solid and emulsifier 2101, dispersant white carbon, stabilizing agent calcium lignosulfonate and water are put into sand mill or ball mill, being milled to its granularity in sand mill or ball mill has 95% above diameter 95% above diameter to be arranged less than 5 μ m less than 0.5 μ m～granularity, be processed into 18%～40% atrazine suspension, mix stirring with load weighted alachlor and Acetochlor again.Stirring was advisable to stir in reactor in 1-2 hour, and the time of stirring decides according to mixing speed, and mixing speed is big, and the time of stirring is short; Mixing speed is to the not influence of quality of product.The ternary compound herbicide of the suspension of being processed into like this is the suspending agent of canescence, good fluidity, forms product through bottling.
Suspended ternary composition weedicide of the present invention through Shandong labor defend test, the female male 2710mg/kg that is of this product rat acute per os LD50, rat acute is through the female male 2150mg/kg that is of skin LD50, this suspending agent is non-stimulated to rabbit skin, tame lagophthalmos is the moderate excitant, belongs to the lower toxicity agricultural chemicals.
Suspended ternary composition weedicide of the present invention has following beneficial effect:
1, alachlor, Acetochlor, the synergy of atrazine on anti-weeding effect have been utilized, enlarged and killed the grass spectrum, strain preventive effect and fresh weight preventive effect have been significantly improved, rationally composite, remedied the deficiency of component separately, improved and removed anti-careless effect, remedied single medicament and Acetochlor, the atrazine medicament defective to the anti-heterodyne of main weeds, annual monocotyledon weed and annual dicotyledonous weeds can be effectively prevented and kill off in disposable medication.
Test shows that suspending agent of the present invention is being prevented and treated dayflower, kitchen garden effect all more than 95%, and the control efficiency of Acetochlor is more than 65%, and the control efficiency of the mixture preparation of Acetochlor+atrazine sees table 1 for details also only more than 88%.
Experimental studies have found that through Institute of Plant Protection, academy of agricultural sciences, Shandong Province: 42% alachlor+Acetochlor+atrazine aqueous suspension agent has obvious synergistic effect to corn ground weed, and is wherein particularly evident to the kitchen garden synergistic effect, and its synergy multiple is 0.82.Through anti-weeding Toxicity Determination, dispenser was observed after 30 days, and corn is grown normal, does not have any symptom of chemical damage.
Test at pilot plant field, agricultural school, Jining City corn field through in June, 1999, soil treatment before the seedling after planting, the optimal dose of 42% alachlor+Acetochlor+atrazine aqueous suspension agent is 150-200 milliliter/mu.
Weed killer herbicide of the present invention is a kind of selectivity, transporting type processing soil treatment agent, and annual single leaf and the sub-weeds of double leaf in the corn field can be effectively prevented and kill off in disposable medication.
2, experimental observation shows: the different amounts with ternary compound herbicide of the present invention all has no adverse effects to emergence of corn and growth, utilize being mixed of alachlor, Acetochlor, three kinds of weed killer herbicides of atrazine, solve Acetochlor and Acetochlor+atrazine and used the problem that corn yield is reduced with, be suitable for corn field weed, improved economic benefit.
Six kinds of weed killer herbicides of table 1 remove 30 days strain preventive effects (%) of corn field of summer weeds test
| Medicament | Consumption (ml/ mu) | Lady's-grass | Nutgrass flatsedge | Carpet weed | Water pepper | Eleusine indica | Green foxtail | Kitchen garden | Dayflower | Other weeds | Average preventive effect |
| 42% alachlor+Acetochlor+atrazine | 150 | ?96 | ?95.1 | ?92.9 | ?94.7 | ?100 | ?100 | ?97.0 | ?100 | ?89.3 | ?94.9 |
| 40% alachlor+atrazine | 150 | ?94.2 | ?92.3 | ?90.7 | ?93.4 | ?94.6 | ?98.1 | ?93.6 | ?94.5 | ?83.7 | ?92.7 |
| 42% Acetochlor+atrazine | 150 | ?92.8 | ?91.0 | ?89.6 | ?91.5 | ?95.0 | ?97.8 | ?89.7 | ?87.5 | ?82.3 | ?90.8 |
| 48% alachlor | 200 | ?87.9 | ?86.4 | ?84.0 | ?89.0 | ?87.0 | ?87.0 | ?70.3 | ?73.1 | ?82.3 | ?82.98 |
| 50% Acetochlor | 200 | ?88.3 | ?86.0 | ?85.5 | ?87.7 | ?88.1 | ?87.9 | ?67.8 | ?70.7 | ?81.9 | ?82.69 |
| 38% atrazine | 200 | ?90.0 | ?86.5 | ?88.0 | ?89.0 | ?91.4 | ?89.6 | ?60.9 | ??61.1 | ??80.5 | ??81.89 |
3, ternary compound herbicide of the present invention is applied to corn field, and is safe to following batch wheat, can avoid the residual toxicity problem, and this being mixed also reduced residual big problem, alleviated the pollution to environment, has the important social benefit aspect environmental protection.
4-8 week alachlor lasting period, Acetochlor lasting period 4-8 8-10 week in week, the longevity of residure of atrazine reaches three months, and ternary compound herbicide of the present invention has increased the consumption of this component of alachlor, just reduced relatively to hold and imitated long components contents, especially the content of atrazine, Acetochlor reduces significantly, so alleviated the pollution to environment, has improved the safety when stubble crop and succession crop.Use the corn field of ternary compound herbicide of the present invention, back stubble is medium to the atrazine resistance, still the crop a little less than the resistance is all very safe.In addition, because alachlor decomposes the relevant antagonism height to ultraviolet radiation, therefore in the ternary compound herbicide of the present invention owing to added alachlor, under normal storing condition, warranty period prolongs, the degraded of product active ingredient reduces in the guarantee period simultaneously, has reduced the unnecessary waste of product.
The compound method of suspended ternary composition weedicide provided by the present invention has following beneficial effect:
1, simple, equipment is few, small investment, raw material are abundant;
2, be that carrier grinds with water, do not have the pollution problem of dust in pulvis or the wetting powder manufacture process;
3, adopt new pesticide processing formulation-aqueous suspension agent, be mixed with the higher mixture of content, saved auxiliary dosage, broken through the lower shortcoming of general mixture type content, be generally 25% as the wettable powder agent content with former medicine of solid and the former medicine of liquid.
Below be embodiments of the invention.
Embodiment 1:
The ternary compound herbicide of a kind of 42% alachlor, Acetochlor, atrazine suspension contains the former medicine of atrazine solid of 22% percetage by weight, the former medicine of alachlor of 16% percetage by weight, the former medicine of Acetochlor liquid of 4% percetage by weight, the emulsifier 2101 of 7% percetage by weight, the dispersant white carbon of 0.5% percetage by weight, the stabilizing agent calcium lignosulfonate and the water of 1.5% percetage by weight.The atrazine of this suspended ternary composition weedicide: alachlor: the weight ratio of Acetochlor is 1: 0.73: 0.18.
Its compound method is: take by weighing the former medicine of atrazine solid and emulsifier 2101, dispersant white carbon, stabilizing agent calcium lignosulfonate and water place sand mill by prescription, be milled to its granularity and 95% above diameter arranged less than 0.5 μ m, be processed into 38% atrazine suspension, mix stirring again with in the Acetochlor of load weighted alachlor that is heated into liquid and liquid and the reactor, stirred 1 hour, and formed product.
Embodiment 2:
The ternary compound herbicide of a kind of 42% alachlor, Acetochlor, atrazine suspension contains the former medicine of atrazine solid of 22% percetage by weight, the former medicine of alachlor of 11% percetage by weight, the former medicine of Acetochlor liquid of 9% percetage by weight, the emulsifier 2101 of 7% percetage by weight, the dispersant white carbon of 0.5% percetage by weight, the stabilizing agent calcium lignosulfonate and the water of 1.5% percetage by weight.The atrazine of this suspended ternary composition weedicide: alachlor: the weight ratio of Acetochlor is 1: 0.5: 0.41.
Its compound method is substantially with embodiment 1, and only different is to be milled to its granularity 95% above diameter to be arranged less than 5 μ m in sand mill, is processed into 37% atrazine suspension, stirs 2 hours.
Embodiment 3:
The ternary compound herbicide of a kind of alachlor, Acetochlor, atrazine suspension contains the former medicine of atrazine solid of 10% percetage by weight, the former medicine of alachlor of 3% percetage by weight, the former medicine of Acetochlor liquid of 3% percetage by weight, the emulsifier 2101 of 5% percetage by weight, the dispersant white carbon of 0.2% percetage by weight, the stabilizing agent calcium lignosulfonate and the water of 1% percetage by weight.
Its compound method is substantially with embodiment 1, and only different is to be milled to its granularity 95% above diameter to be arranged less than 3 μ m in ball mill, is processed into 18% atrazine suspension, stirs 2 hours.
Embodiment 4:
The ternary compound herbicide of a kind of alachlor, Acetochlor, atrazine suspension contains the former medicine of atrazine solid of 30% percetage by weight, the former medicine of alachlor of 30% percetage by weight, the former medicine of Acetochlor liquid of 5% percetage by weight, the emulsifier 2101 of 10% percetage by weight, the dispersant white carbon of 1% percetage by weight, the stabilizing agent calcium lignosulfonate and the water of 2% percetage by weight.
Its compound method is substantially with embodiment 1, and only different is to be milled to its granularity 95% above diameter to be arranged less than 2 μ m in sand mill, is processed into 40% atrazine suspension, stirs 1.5 hours.
Claims (4)
1, a kind of suspended ternary composition weedicide is characterized in that this weed killer herbicide is an active component with the former medicine of atrazine solid, the former medicine of Acetochlor liquid and the former medicine of alachlor, and the percetage by weight of each component is respectively:
The former medicine 10-30% of atrazine solid
The former medicine 3-9.9% of Acetochlor liquid
The former medicine 3-30% of alachlor
2, suspended ternary composition weedicide as claimed in claim 1, it is characterized in that this compound herbicide is composited by active component and emulsifier, dispersant, stabilizing agent and water, wherein emulsifier is 2101, dispersant is that white carbon, stabilizing agent are calcium lignosulfonate, and the percetage by weight of each component is respectively:
Emulsifier 5-10%
Dispersant 0.2-1%
Stabilizing agent 1-2%
Water surplus
3,, it is characterized in that this compound herbicide also contains the urea of 1-7% percetage by weight as claim 1,2 described suspended ternary composition weedicides.
4, the compound method of suspended ternary composition weedicide as claimed in claim 1, it is characterized in that: the former medicine of atrazine solid and emulsifier 2101, dispersant white carbon, stabilizing agent calcium lignosulfonate and water are put into sand mill or ball mill, being milled to its granularity in sand mill or ball mill has 95% above diameter 95% above diameter to be arranged less than 5 μ m less than 0.5 μ m～granularity, be processed into 18%～40% atrazine suspension, mix stirring with load weighted alachlor and Acetochlor again, stirred 1-4 hour.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00100253 CN1303594A (en) | 2000-01-12 | 2000-01-12 | Suspended ternary composition weedicide and its preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00100253 CN1303594A (en) | 2000-01-12 | 2000-01-12 | Suspended ternary composition weedicide and its preparation method |
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| CN1303594A true CN1303594A (en) | 2001-07-18 |
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| CN 00100253 Pending CN1303594A (en) | 2000-01-12 | 2000-01-12 | Suspended ternary composition weedicide and its preparation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104430385A (en) * | 2014-11-10 | 2015-03-25 | 吉林省八达农药有限公司 | Herbicide containing 2-methyl-4-chlorophenoxy acetic acid-isooctyl, atrazine and amides raw drugs and preparation method of herbicide |
| CN106818776A (en) * | 2016-12-14 | 2017-06-13 | 安徽扬子化工有限公司 | One grows cotton uses herbicide |
-
2000
- 2000-01-12 CN CN 00100253 patent/CN1303594A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104430385A (en) * | 2014-11-10 | 2015-03-25 | 吉林省八达农药有限公司 | Herbicide containing 2-methyl-4-chlorophenoxy acetic acid-isooctyl, atrazine and amides raw drugs and preparation method of herbicide |
| CN106818776A (en) * | 2016-12-14 | 2017-06-13 | 安徽扬子化工有限公司 | One grows cotton uses herbicide |
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