CN105660663B - A kind of lawn herbicide for having concurrently before bud and being acted on after bud and its application method - Google Patents
A kind of lawn herbicide for having concurrently before bud and being acted on after bud and its application method Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/88—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms six-membered rings with three ring hetero atoms
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
- A01N37/22—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof the nitrogen atom being directly attached to an aromatic ring system, e.g. anilides
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
- A01N43/42—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings condensed with carbocyclic rings
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Abstract
A kind of application method for the lawn herbicide for having concurrently before bud and being acted on after bud, it is with 50 grams/acre of 50% dichloro quinolinic acid wettable powder, milliliter/mu of 48% bentazone aqua 200, milliliter/mu of 96% S-metolachlor missible oil 100, it is watered after mixing to 50,000 grams/acre or so, is uniformly sprayed on green surface.Once, most dispensers in 1 year are that can reach herbicidal effect three times for each sprinkling before 3 April summer and autumn weed germinations, before 9 October Winter-Spring weed germinations.The present invention is easy to operate, cost-effective, has concurrently before bud and double action, broad weed-killing spectrum, herbicidal effect are good after bud.To people and animals low toxicity, to it is cold, warm-season turf is safe, poisoning will not be produced under conventional amount used.
Description
Technical field
The present invention relates to pesticide field, especially relate to a kind of lawn herbicide for having concurrently before bud and being acted on after bud and
Application method.
Background technology
In recent years, urban public lawns are constantly built, and lawn area is also constantly expanding, and weed problem is to restrict lawn pipe
Manage quality, influence an important factor for lawn scenery.
Current lawn is based on artificial control, supplemented by chemical prevention.Blanket type artificial weeding controlling weeds, cost accounting
Height, efficiency is low, and effect is extremely difficult to be expected, and has a huge seed bank in soil, while manually weeding out the rank grass,
The seed of deep layer is taken out of, condition is once ripe to be sprouted.This has resulted in the situation that weeds the more are pulled out the more more.
Turf weed huge number, exemplified by the south the Yangtze river basin, weeds mainly have kind more than 150.Including lady's-grass, ox
The grassy weeds such as muscle grass, barnyard grass, list head grass, amur foxtail, cogongrass；Annual fleabane herb, grasswort, alternanthera philoxeroides, Carolina Cranesbill Herb, big nest
The broad leaved weeds such as dish, Horseweed Herb, clearvers, kalimeris, ivy glorybind, shepherd's purse；The nutgrass flatsedges such as the rhizome of nutgrass flatsedge, kyllinga brevifolia, cyperus iria.Therefore
Any single herbicide is impossible to control whole Weed infestations.For example, at present extensively using 2,4-D butyl esters, two on lawn
The chemical herbicides such as first tetrachloro preventing and treating broad leaved weed, nutgrass flatsedge, but it is invalid to grassy weed, and 2,4-D butyl ester environmental toxicity
It is larger, continuous application 2,4-D butyl esters, flower tree death around can be caused.
Herbicide can also make lawn produce poisoning from improper, or even dead.Grass can be divided into cool-season grasses and season type grass,
Some herbicides are then sensitivity to cold-season type lawn safety, but to warm-season turf.Vice versa.If pyrazosulfuron is to dog tooth
Dogstail, broadleaved herb, nutgrass flatsedge on the warm-season turfs such as root, Korea lawn grass all have good prevention effect, but cold to rye grass etc.
Season type lawn can then produce poisoning.Therefore, some alternative herbicides in the cold alternate lawn of season type are also considerably reduced
.
Herbicide is divided into preemergence herbicide and post-emergence herbicide, and weeding is more laborsaving than preventing and kill off after seedling weeds before preventitious bud
More, weeds need people's preemergence herbicide when not seeing weed germination before preventitious bud, could obtain initiative.Reality
Situation is, due to region, the change of environment, weather, the time of weed germination is not quite similar, if preventing and treating is too early, over time
Passage, reduced activity of the preemergence herbicide in soil, preventive effect can also be deteriorated.If preventing and treating is too late, emergence is missed
Peak, most of weeds have sprouted, and preventing and treating does not just have in all senses, because preemergence herbicide only rises to the seed not germinateed
Effect.Therefore long-acting lasting preemergence herbicide is selected, while the herbicide for having herbicide effect after bud concurrently again is particularly important.
The content of the invention
To solve problem above, the invention provides one kind formula is reasonable, preventive effect substantially has concurrently before bud and made after bud
Lawn herbicide and application method.
A kind of to have the lawn herbicide acted on before bud and after bud concurrently, Qi Tete is：The formula of herbicide, is calculated by mu,
It is made up of following preparation, 50% 50 grams/acre of dichloro quinolinic acid wettable powder, milliliter/mu of 48% bentazone aqua 200,96% essence are different
Milliliter/mu of methoxalamine missible oil 100.
A kind of application method for the lawn herbicide for having concurrently before bud and being acted on after bud, is converted after being mixed by above-mentioned pharmaceutical formulation
Water is to 50,000 grams/acre；The mode of preparation mixing is first to add the half that need to add water inventory in a device, is then sequentially added into
50% dichloro quinolinic acid wettable wettable powder, 48% bentazone aqua, 96% S-metolachlor missible oil, often add a kind of system
Agent will stir, and then add next preparation, be watered after mixing and be evenly stirred until total amount/mu, the weeding of acquisition
Agent is sprayed on green surface；It to ensure optimal preventive effect, should be irrigated in the previous day, be applied during earth's surface humidity, it is impossible to
There is dispenser in the case of occluded water, otherwise can influence drug effect；Spraying time is before 3-4 month summer and autumn weed germination；9-10 months
It is each before Winter-Spring weed germination to spray once；According to circumstances fill spray and spilt once in 7, August part, most dispensers in 1 year are three times, you can reach
To ideal effect.
The invention has the advantages that：
1st, herbicide of the invention is mixed using three kinds of medicaments, broad weed-killing spectrum, and preventing and treating success rate is high.To lady's-grass, eleusine indica,
The grassy weeds such as barnyard grass, moleplant seed, green bristlegrass；Annual fleabane herb, grasswort, alternanthera philoxeroides, Carolina Cranesbill Herb, common vetch, Horseweed Herb,
The broad leaved weeds such as clearvers, kalimeris, ivy glorybind, shepherd's purse；The nutgrass flatsedges such as the rhizome of nutgrass flatsedge, kyllinga brevifolia, cyperus iria all have anti-well
Control effect.
2nd, Herbicidal composition of the invention is reasonable, small to people and animals' fanout free region, environmental pollution.To cold-season-type and warm-season turf
Safety, poisoning will not be produced under conventional amount used.
3rd, before herbicide of the invention has bud concurrently（Soil is closed）After bud（Cauline leaf）Herbicide effect, it is long-acting lasting.Significantly
Weaken too early or administer the influence to weed control too late.
4th, the present invention is cost-effective, cheap, per square meter less than 0.1 yuan including labour cost.And have concurrently at present
Soil is closed and the herbicide of cauline leaf process double effectses, and such as golden hundred shows of state's light Zhuo Er, level ground peace, its cost accounting all exists
It is more than 0.18/ square meter.And they can not be all acted on warm-season turf, warm-season turf can be caused to wither after dispenser, even
It is dead.
5th, present invention operation is flexible, easy to use, can be according to region, environment, the motor-driven selection spraying time of weather.
Embodiment
Herbicidal composition, matched proportion density and its application method provided by the invention are obtained by following five groups of experiments.
Experiment 1：Influence of the different preemergence herbicides to Kill weeds effect
Preemergence herbicide mainly has prodiamine, Tupersan, S-metolachlor, alachlor, Acetochlor etc., because using
Prodiamine, Tupersan are costly, it is contemplated that cost factor, only compare S-metolachlor, alachlor, Acetochlor three here
Kind preemergence herbicide.
Test period is in mid-September, 2013, and place is Jingjiang City of Jiangsu Province Mu Cheng parks, and method is as follows：
Experimental design is divided into two factors.Factor I is 96% S-metolachlor missible oil, 48% alachlor missible oil, 50% second
Careless three kinds of herbicides of amine missible oil.3 kinds of application concentrations of factor Ⅱ, respectively milliliter/mu of 96% S-metolachlor missible oil 25,50
Milliliter/mu, 100 milliliters/mu；Milliliter/mu of 48% alachlor missible oil 150,300 milliliters/mu, 600 milliliters/mu；50% Acetochlor breast
Oily 50 milliliters/mu, 100 milliliters/mu, 200 milliliters/mu.Three kinds of preparations are labeled with low concentration, middle concentration, high concentration respectively.Will
96% S-metolachlor missible oil is watered 45,000 grams/acre, and 48% alachlor missible oil is watered 35,000 grams/acre, and 50% acetochlor ec is watered
50000 grams/acre,（The amount of being watered is to recommend the average of dosage above）, uniformly it is sprayed on lawn, enters in spraying herbicide the previous day
Row irrigation operation, to ensure optimum medicine efficacy.Clear water is sprayed as control.Herbicidal effect before bud（Enclosed）In 4 months 2014
Randomly select 3 meters long, 3 meters of wide scopes ten days to be investigated, set three repetitions altogether.Enclosed=（It is miscellaneous to compare weeds strain number-processing
Careless strain number）/ control weeds strain number is multiplied by 100%.Data carry out significance difference analysis with SPSS statistical softwares, and its result is as follows
Table 1.
Table 1
Note：Lowercase difference represents lateral comparison significant difference, and capitalization difference represents longitudinal comparison significant difference,
P<0.05。
P values and alphabetical a, b, SPSS statistical softwares automatically generate when c carries out significance difference analysis, and P values are Sig
Value, Sig=significance, looks like and represents statistical significance for conspicuousness, P values.It is a kind of estimation of real result degree
Method.In specialty, P values are a declining indicator of credible result degree, and P values are bigger, and we more must not believe that variable in sample
Association be each variable association in totality reliability index.As in the prompting sample of P=0.05 variable association have 5% be probably due to
Caused by contingency.Assume equal onrelevant, the similar experiment of our repetitions, it is found that about 20 experiments between aleatory variable in totality
In have 1 experiment, the variable association that we are studied will be equal to or be better than our experimental result.In many research fields,
0.05 P values are typically considered the border level for being subjected to mistake.P shows that experimental result is true and reliable less than 0.05.
Alphabetical a, b, c do not have any implication in itself.They are whether embody difference by mutual comparison notable.Will basis
More whether abc has significant difference, it is only necessary to compare the letter of two groups of representatives whether have it is overlapping.Such as between a, b, c three,
Different, mutually all there were significant differences, but compares for ab and a or ab and b compares, and respectively has repetitive letter, so two
To all not having significant difference.But just there were significant differences between ab and c（Below table, explain identical）.
As seen from the above table, using the S-metolachlor missible oil of high concentration 96%, i.e. 100 milliliters/mu, optimal lawn is reached
Sealing effect.Therefore, we select preemergence herbicide of the 96% S-metolachlor missible oil as complex preparation.
Experiment 2：Influence of the post-emergence herbicide of various concentrations to Kill weeds effect.
With 50% dichloro quinolinic acid wettable powder（25 grams/acre, 50 grams/acre, 75 grams/acre of three kinds of concentration）, 48% bentazone
Aqua（100 grams/acre, 150 grams/acre, 200 grams/acre of three kinds of concentration）Influence to Kill weeds effect.Two kinds of preparations mark respectively
There are low concentration, middle concentration, high concentration.The preparation of ad eundem concentration is sufficiently mixed, and is watered 40,000 grams/acre, after being thoroughly mixed
Uniformly it is sprayed on green surface.Irrigation operation is carried out in spraying herbicide the previous day, to ensure optimum medicine efficacy.10 days, 20 days, 30
After it, random selection is 3 meters long, 3 meters of wide scopes are investigated, if three repetitions.Weeding rate=（Weeds strain number-preventing and treating before preventing and treating
Weeds strain number afterwards）Weeds strain number is multiplied by 100% before/preventing and treating.Data carry out significance difference analysis with SPSS statistical softwares, as a result
It see the table below 2
Table 2：
Note：Different letters represent significant difference（P<0.05）
As seen from the above table, mix preparation prevents and kill off rate highest to broad leaved weed, nutgrass flatsedge in higher concentrations.And dogstail is prevented and kill off
Rate, high concentration and middle concentration difference are little, and after two kinds of dichloro quinolinic acid, bentazone reagent mixing, synergy work will not typically occur
With, consideration cost factor, 50 grams/acre of 50% dichloro quinolinic acid wettable powder of selection, as optium concentration.Therefore, the two is most
Good concentration is 50 grams/acre of 50% dichloro quinolinic acid wettable powder, 48% 200 grams/acre of bentazone aqua.
Binding tests 1 and experiment 2, by 50 grams/acre of 50% dichloro quinolinic acid wettable powder, the milli of 48% bentazone aqua 200
Liter/mu, milliliter/mu of 96% S-metolachlor missible oil 100, the complex preparation of composition, there is optimal matched proportion density effect.
Experiment 3：The measure for the amount of being watered under best concentration ratio：
Preemergence herbicide is drenched among soil, is eliminated the seed in soil, to be made its preventive effect best, then must keep
Higher soil moisture, decoction reaches the embedded depth of standard, therefore needs the higher amount of being watered, and this virtually dilutes compounding system
The concentration of post-emergence herbicide in agent.The amount of being watered of above-mentioned two experiment is the respective routine amount of being watered before pestsides synthesis, to ensure
Weeding before bud（Soil is closed）Effect, while do not influence herbicidal effect after bud, then must be to the optimal amount of being watered of preparation after mixing
It is measured.Test method is as follows：
50% 50 grams/acre of dichloro quinolinic acid wettable powder, milliliter/mu of 48% bentazone aqua 200,96% smart isopropyl first grass
Milliliter/mu of amine missible oil 100, be watered after mixing to 30,40,50,60 kilograms/per mu even be sprayed on green surface.Measure difference is converted
Weeding rate and enclosed under water.Enclosed=（Compare weeds strain number-processing
Weeds strain number）/ control weeds strain number is multiplied by 100%.Weeding rate=（Weeds strain after weeds strain number-preventing and treating before preventing and treating
Number）Weeds strain number is multiplied by 100% before/preventing and treating.Data carry out significance difference analysis with SPSS statistical softwares, as a result see the table below：
Table 3
Note：The different letters of lateral comparison represent significant difference（P<0.05）.
As seen from table, the amount of being watered is in thousand grams/acre of 30-50, and herbicide herbicidal effect does not have a significant difference, but when being watered
At 60,000 grams/acre, herbicidal effect significantly reduces amount.Sealing effect then becomes with the increase for the amount of being watered in obvious rise
Gesture, at 50,60,000 grams/acre, difference is little, but because at 60,000 grams/acre, herbicidal effect is relatively low, therefore selects 50,000 grams/acre
As the optimal amount of being watered.
Experiment 4：Winter-Spring weed control efficacy determines
Weed germination type is divided into Winter-Spring sprouting type and summer and autumn sprouting type, is typically chosen in annual 3, April and 9,10
Two periods of month are respectively applied once, and the purpose of a year and a day weeds is eliminated with regard to that can reach.
But specifically at what time spray herbicidal effect can be made to reach optimum value, depending on region, environment, weather etc. because
Element.Therefore, we have done following two groups of experiments, are on the one hand to determine the complex preparation formed after three kinds of reagent mixing really to remove
Careless effect, what on the other hand determination was optimal prevents and kill off the time.
2014 9, tested in Jingjiang City of Jiangsu Province Mu Cheng parks October, method is as follows：
September 5 days, September 15 days, September 25 days, October 5 respectively by 50 grams/acre of 50% dichloro quinolinic acid wettable powder,
After milliliter/mu of 48% bentazone aqua 200, the mixing of milliliter/mu of 96% S-metolachlor missible oil 100, it is watered to 50,000 grams/acre,
Green surface is uniformly sprayed on after being thoroughly mixed.Irrigation operation is carried out in spraying herbicide the previous day, to ensure optimum medicine efficacy.
Respectively herbicidal effect is investigated after herbicide is sprayed 10 days, 20 days, 30 days.Selection is long 3 meters, wide 3 meters of region is investigated, if
Three repetitions.Weeding rate=（Weeds strain number after weeds strain number-preventing and treating before preventing and treating）Weeds strain number * 100% before/preventing and treating.Weeding before bud
（Closing）The measure of effect will spray 50,000 grams/acre of clear water as control, and sealing effect is investigated in mid-April, 2015.Equally
Random selection is long 3 meters, wide 3 meters of region is investigated, if three repetitions.Enclosed=（Compare weeds strain number-processing weeds strain
Number）/ control weeds strain number * 100%.Clear water is sprayed as control treatment.Data carry out the significance of difference point with SPSS statistical softwares
Analysis, its result such as following table.
Table 4：Different time sprinkling herbicide prevent and kill off rate and enclosed compares
| Processing time | Prevent and kill off rate (%) | Enclosed (%) |
| September 5 days | 92.62 a | 83.53 ab |
| September 15 days | 91.83 a | 87.45 a |
| September 25 days | 93.37 a | 86.39 a |
| October 5 | 87.85 ab | 73.48 b |
Note：Different letters represent significant difference（P<0.05）
As a result show：All have in three September 5 days, September 15 days, September 25 day periods sprinkling herbicides
There is good herbicidal effect, and three's difference is little, but preventive effect is relatively low after sprinkling on October 5 herbicide, and can
Energy temperature reduces the performance that have impact on drug effect.Sealing effect after September 15 days and September dispenser on the 25th was better than September 5 days, 10
Sealing effect decline after moon dispenser on the 5th is more, illustrates that most of Winter-Spring weeds have sprouted before October, after this
Preventing and treating is just nonsensical.
We also compare simultaneously is prevented and kill off with herbicide of the present invention to three kinds of dogstail, broadleaved herb, nutgrass flatsedge different type grass
Rate and enclosed are tested.Test effect is that the dogstail averagely rate of preventing and kill off is 88.56%, broadleaved herb 96.34%, and nutgrass flatsedge is
93.13%.Dogstail enclosed is 98.12%, broadleaved herb 78.24%, nutgrass flatsedge 84.15%.
In summary：It can be played in 9-10 month any time periods spray herbicide medicine of the present invention and prevent and kill off and close well
Effect, wherein the September preventive effect that sprayed before and after 15 to 25 are best.The herbicide to dogstail, broadleaved herb, nutgrass flatsedge all have compared with
It is good to prevent and kill off and sealing effect, wherein broadleaved herb prevent and kill off rate highest, it is best to the sealing process of dogstail.
Test 5 summer and autumn weed control efficacies measure
2015 3, tested in Jingjiang City of Jiangsu Province Mu Cheng parks April, method is as follows
March 5, March 15, March 25, April 5 respectively by 50 grams/acre of 50% dichloro quinolinic acid wettable powder,
After milliliter/mu of 48% bentazone aqua 200, the mixing of milliliter/mu of 96% S-metolachlor missible oil 100, it is watered to 50,000 grams/acre,
Green surface is uniformly sprayed on after being thoroughly mixed.Irrigation operation is carried out in spraying herbicide the previous day, to ensure optimum medicine efficacy.
Respectively herbicidal effect is investigated after herbicide is sprayed 10 days, 20 days, 30 days.Selection is long 3 meters, wide 3 meters of region is investigated, if
Three repetitions.Weeding rate=（Weeds strain number after weeds strain number-preventing and treating before preventing and treating）Weeds strain number * 100% before/preventing and treating.Weeding before bud
（Closing）The measure of effect will spray 50,000 grams/acre of clear water as control, and sealing effect is investigated in mid-October, 2015.Equally
Random selection is long 3 meters, wide 3 meters of region is investigated, if three repetitions.Enclosed=（Compare weeds strain number-processing weeds strain
Number）/ control weeds strain number * 100%.Clear water is sprayed as control treatment.Data carry out the significance of difference point with SPSS statistical softwares
Analysis, its result such as following table.
Table 5：Different time sections sprinkling herbicide prevent and kill off rate and enclosed compares
| Processing time | Prevent and kill off rate (%) | Enclosed (%) |
| March 5 | 80.61 a | 83.53 ab |
| March 15 | 83.46 a | 88.69 a |
| March 25 | 82.34 a | 76.31 ab |
| April 5 | 86.79 a | 70.18 b |
Note：Different letters represent significant difference（P<0.05）
As a result show：All have in four March 5, March 15, March 25, period sprinkling herbicides in April 5 day good
Good herbicidal effect, preventive effect is best after April 5 sprayed herbicide, but is compared with other threes, without notable difference.
Sealing effect after dispenser on March 15 is best, and effect declines quickly after March 25, illustrates most of summer and autumn weeds in 3 months
Sprouted before ten days.
Compare herbicide and rate and enclosed are prevented and kill off to dogstail, broadleaved herb, three kinds of different types of nutgrass flatsedge grass.Dogstail is averaged
It is 84.81% to prevent and kill off rate, broadleaved herb 93.85%, nutgrass flatsedge 90.18%.Dogstail enclosed is that 96.02% broadleaved herb is 76.34%,
Nutgrass flatsedge is 82.45%.
In summary：It can play in 3-4 month any time periods spray and prevent and kill off and sealing effect well, wherein March
The preventive effect that sprayed before and after 15 days is best.The herbicide all has to dogstail, broadleaved herb, nutgrass flatsedge preferably prevents and kill off and closes effect
Fruit, wherein broadleaved herb prevent and kill off rate highest, best to the sealing process of dogstail.
The present invention has cauline leaf process and soil closing double grading concurrently, and the duration is grown, and drug effect is notable, can weaken significantly
Administer too early or too late the influence to weed control.So above-mentioned case is within 3-4 months, two periods of 9-10 months
Sprayed any time, all with preferable herbicidal effect.But spray can make herbicidal effect reach optimum value at what time,
Ground suiting measures to different conditions should also be answered.In mid-March and early September if the northern Best Times for spraying the herbicide are possible.This shows this hair
Bright operation is flexible, can motor-driven selection spraying time.
Claims (2)
1. a kind of have the lawn herbicide acted on before bud and after bud concurrently, it is characterised in that：The formula of herbicide, is calculated by mu, by
Following preparation composition, 50% 50 grams/acre of dichloro quinolinic acid wettable powder, milliliter/mu of 48% bentazone aqua 200,96% smart isopropyl
Milliliter/mu of alachlor missible oil 100；For prevent and kill off dogstail, broadleaved herb, nutgrass flatsedge three types weeds, while be applied to cold-season-type
Lawn and warm-season turf.
2. a kind of application method of lawn herbicide for having concurrently before bud and being acted on after bud as described in claim 1, its feature exist
In：It is to be watered after being mixed by above-mentioned pharmaceutical formulation to 50,000 grams/acre；For the soil sealing effect that herbicide is optimal, at cauline leaf
The influence of reason minimizes；The mode of described preparation mixing is first to add the half that need to add water inventory in a device, is then distinguished
50% dichloro quinolinic acid wettable wettable powder, 48% bentazone aqua, 96% S-metolachlor missible oil are sequentially added, is often added
Entering a kind of preparation will stir, and then add next preparation, be watered after mixing and be evenly stirred until 50,000 grams/acre,
The herbicide spray of acquisition is in green surface；Described herbicide spray is before green surface, should to ensure optimal preventive effect
Irrigated, applied during earth's surface humidity, it is impossible to the dispenser in the case where there is occluded water, otherwise can influence drug effect in the previous day；Institute
The herbicide stated, in March 15, September each sprinkling in 15 to 25 once, according to circumstances fill spray and spilt once in 7, August part, 1 year
Most dispensers three times, can reach ideal effect.
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| CN1317241A (en) * | 2001-02-26 | 2001-10-17 | 北京市农林科学院植物保护环境保护研究所 | Composition of bensultap and herbicide for monocotyledonous weeds |
| WO2003082012A1 (en) * | 2002-04-03 | 2003-10-09 | Syngenta Participations Ag | Herbicidal composition comprising phenylpropynyloxypyridine compounds |
| CN102265857A (en) * | 2010-06-03 | 2011-12-07 | 南京华洲药业有限公司 | Mixed herbicide containing bentazone, cyhalofop-butyl and quinclorac, and application thereof |
| CN102835410A (en) * | 2012-09-21 | 2012-12-26 | 徐弋舒 | Method for compound use of rice herbicide |
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| UA63884C2 (en) * | 1995-04-12 | 2004-02-16 | Singenta Participations Ag | Herbicidal composition and a method of controlling the emergence of undesirable plants |
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| CN1317241A (en) * | 2001-02-26 | 2001-10-17 | 北京市农林科学院植物保护环境保护研究所 | Composition of bensultap and herbicide for monocotyledonous weeds |
| WO2003082012A1 (en) * | 2002-04-03 | 2003-10-09 | Syngenta Participations Ag | Herbicidal composition comprising phenylpropynyloxypyridine compounds |
| CN102265857A (en) * | 2010-06-03 | 2011-12-07 | 南京华洲药业有限公司 | Mixed herbicide containing bentazone, cyhalofop-butyl and quinclorac, and application thereof |
| CN102835410A (en) * | 2012-09-21 | 2012-12-26 | 徐弋舒 | Method for compound use of rice herbicide |
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