CN101530103A - Herbicide composition - Google Patents
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- CN101530103A CN101530103A CN200910022214A CN200910022214A CN101530103A CN 101530103 A CN101530103 A CN 101530103A CN 200910022214 A CN200910022214 A CN 200910022214A CN 200910022214 A CN200910022214 A CN 200910022214A CN 101530103 A CN101530103 A CN 101530103A
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- atrazine
- fluroxypyr
- nicosulfuron
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Abstract
The invention discloses a herbicide composition for preventing/killing farmland weeds, and application thereof, and in particular relates to herbicide composition for preventing and controlling gramineae weeds and broad-leaved weeds in cornfields. The composition is a three-element herbicide composition taking Nicosulfuron, Atrazine and Fluroxypyr as active components. The weight ratio of the Nicosulfuron to the Atrazine to the Fluroxypyr in the composition is 1-50:1-80:1-50, preferably 1-10:1-50:1-20. The composition has the advantages of having reasonable components, prevention and control effects superior to the activity when the components are applied separately, synergistic effect and high safety to the crops, expanding weed-controlling spectrum, reducing the frequency of pesticide application, reducing prevention and control cost, slowing down the resistance generation of the weeds and meeting the requirement of pesticide preparations on safety. The fresh-weight prevention and control effect of the composition on gramineae weeds and broad-leaved weeds in cornfields reaches 85.80 to 95.13 percent.
Description
Technical field
The present invention relates to a kind of herbicidal composition, be specifically related to a kind of weed killer herbicide that is used for control of maize field grassy weed and broad leaved weed, it is the active ternary herbicidal composition of forming by nicosulfuron, atrazine and fluroxypyr.
Background technology
The English common name nicosulfuron of nicosulfuron, the beautiful farming of other Chinese name is happy, cigarette sulphur is grand, molecular formula C
15H
18N
6O
6S.Nicosulfuron is a kind of sulfonylurea corn field herbicide, behind the low dosage bud with preventing and kill off multiple annual gramineous weed, broad leaved weed and sedge weed in the corn field effectively.It is absorbed rapidly by leaf and root, and conducts rapidly by xylem and phloem.Stop the synthetic of branched-chain amino acid by acetolactate synthestase.Use the back weeds and stop growing immediately, 4-5 days young leaves fade, necrosis, and progressively expand to whole plant, and general condition is handled back plant death in 20-25 days down.
The English common name atrazine of atrazine, other Chinese name atrazine, green bristlegrass are gone to the greatest extent, Aunar draws piperazine, molecular formula C is protected only in the garden
8H
14ClN
5Atrazine is before the selectivity inner sucting conduction type seedling, herbicide after seedling.Root absorption is main, and cauline leaf absorbs seldom, is transmitted to plant meristematic tissue and leaf portion rapidly, disturbs photosynthesis, and weeds are caused death.
The English common name fluroxypyr of fluroxypyr, other Chinese name makes it grand, and the fluorine grass is fixed, molecular formula C
15H
21Cl
2FN
2O
3Fluroxypyr belongs to the inner sucting conduction type herbicide after seedling, and is very fast by plant absorbing behind the medicine, makes sensitive plant the reaction of typical hormone herbicide, plant deformity, distortion occur.Temperature does not have influence to the final effect of its weeding.
In actual use, nicosulfuron has the better prevention effect to the most grassy weeds between corn field, but not satisfactory to part broad leaved weed preventive effect, and the corn weeds in field has the trend that strengthens gradually to the nicosulfuron resistance; Atrazine is as a kind of corn field herbicide commonly used, weeds are had prevent and kill off preferably and sealing effect, but since the resistance problem usage amount increase year by year; Fluroxypyr has preventive effect preferably to broad leaved weed between corn field, but relatively poor to the grassy weed preventive effect.Therefore, nicosulfuron, atrazine and fluroxypyr rationally are mixed, have the control of weeds of expansion spectrum, reduce spraying times, reduce the effect of control cost.
Summary of the invention
The object of the present invention is to provide a kind of component reasonable, drug cost is low, the herbicidal composition that is difficult for developing immunity to drugs all has the better prevention effect to grassy weed and broad leaved weed, has positive role to slowing down aspects such as weeds resistance and weed community succession.
Another object of the present invention is to provide the herbicidal composition preparation formulation.
A further object of the present invention is to provide the application of herbicidal composition.
In order to overcome the defective of existing unitary agent, the technical scheme of herbicidal composition of the present invention is to solve like this:
With nicosulfuron, atrazine and fluroxypyr is active component, and wherein the triangular weight ratio of nicosulfuron, atrazine and fluroxypyr is 1～50:1～80:1～50, preferably 1～10:1～50:1～20.
The preparation formulation that herbicidal composition of the present invention can be prepared according to the known method of those skilled in the art of the present technique is water dispersible granules, oil-suspending agent, wetting powder.
For water dispersible granules, those skilled in the art are familiar with the use corresponding adjuvants and finish the present invention very much.In dispersant such as polycarboxylate, lignosulfonates, the alkylnaphthalene sulfonate one or more; In wetting agent such as alkyl sulfate, alkylsulfonate, the naphthalene sulfonate one or more; In disintegrant such as ammonium sulfate, urea, sucrose, the glucose one or more; In binding agent such as diatomite, corn starch, PVA, carboxymethyl (ethyl) cellulose family one or more; Filler such as diatomite, kaolin, white carbon, fine particle calcium carbonate, talcum powder, attapulgite, potter's clay one or more.
To oil-suspending agent, spendable auxiliary agent has: among dispersant such as polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate, the TERSPERSE 2425 (U.S. Huntsman Corporation produces, the alkyl naphthalene sulfonic acid salt) one or more; The sorbitan monostearate APEO), agricultural newborn 1601# (common name: phenethyl phenol polyoxyethylene poly-oxygen propylene aether), among TERSPERSE 4894 (the U.S. Huntsman Corporation product) TERSPERSE2500 (U.S. Huntsman Corporation product) one or more emulsifier such as Nongru-700 # (common name: alkyl phenol formaldehyde resin polyoxyethylene ether, farming breast 2201, this dish-60# (common name sorbitan monostearate), Tween-60 # (common name:; Among wetting agent such as alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, alkylphenol-polyethenoxy base ether phosphate, phenethyl phenol polyethenoxy base ether phosphate, alkyl sulfate, alkylsulfonate, naphthalene sulfonate, the TERSPERSE 2500 (U.S. Huntsman Corporation product) one or more; In thickener such as white carbon, polyvinyl alcohol, bentonite, the aluminium-magnesium silicate one or more; In antifreezing agent such as ethylene glycol, propane diols, glycerine, urea, inorganic salts such as the sodium chloride one or more; In stabilizing agent such as epoxidized soybean oil, epoxychloropropane, the triphenyl phosphate one or more; In dispersion medium such as soybean oil, rapeseed oil, corn oil, the methyl oleate one or more.
To wetting powder, spendable auxiliary agent has: in dispersant such as polycarboxylate, lignosulfonates, the alkylnaphthalene sulfonate one or more; In wetting agent such as alkyl sulfate, alkylsulfonate, the naphthalene sulfonate one or more; Filler such as ammonium sulfate, urea, sucrose, glucose, diatomite, kaolin, white carbon, fine particle calcium carbonate, talcum powder, attapulgite, potter's clay one or more.
Component of the present invention is reasonable, and the activity that preventive effect is better than each component when using separately has synergistic effect, enlarge the control of weeds spectrum, reduce spraying times, reduce the control cost, slow down the generation of weeds resistance, good to crop safety, meet the security requirement of pesticidal preparations.The present invention has 85.80%～95.13% fresh weight control efficiency to grassy weed between corn field and broad leaved weed.
Embodiment
Below in conjunction with embodiment content of the present invention is described further.
Example of formulations 1:
Take by weighing 2% nicosulfuron, 23% atrazine, 10% fluroxypyr, 3% TERSPERSE2700 (polycarboxylate, U.S. Huntsman Corporation produces), 2% dispersing agent NNO (alkylnaphthalene sulfonate formaldehyde condensation products), 3% Nekal BX (nekal), 2%K-12 (lauryl sodium sulfate), 3% white carbon black, 5% sulphur ammonium, diatomite adds to 100% weight portion.The method of the frequent regulation of above-mentioned raw materials water intaking dispersible granule is promptly mixed, ultra micro comminution by gas stream, mixing, granulation step are produced 35% nicosulfuron atrazine fluroxypyr water dispersible granules.
The part by weight of nicosulfuron and atrazine and fluroxypyr can change between 1～50:1～80:1～50 in the present embodiment, and both total weight items still are 35%, form new embodiment.
Example of formulations 2:
Take by weighing 3% nicosulfuron, 32% atrazine, 15% fluroxypyr, 5% TERSPERSE2700 (polycarboxylate, U.S. Huntsman Corporation produces), 3% dispersing agent NNO (alkylnaphthalene sulfonate formaldehyde condensation products), 4% Nekal BX (nekal), 4%K-12 (lauryl sodium sulfate), 3% white carbon black, 5% sulphur ammonium, diatomite adds to 100% weight portion.The method of the frequent regulation of above-mentioned raw materials water intaking dispersible granule is promptly mixed, ultra micro comminution by gas stream, mixing, granulation step are produced 50% nicosulfuron atrazine fluroxypyr water dispersible granules.
The part by weight of nicosulfuron and atrazine and fluroxypyr can change between 1～50:1～80:1～50 in the present embodiment, and both total weight items still are 50%, form new embodiment.
Example of formulations 3:
Take by weighing 2% nicosulfuron, 50% atrazine, 20% fluroxypyr, 5% TERSPERSE2700 (polycarboxylate, U.S. Huntsman Corporation produces), 2% dispersing agent NNO (alkylnaphthalene sulfonate formaldehyde condensation products), 2% Nekal BX (nekal), 2%K-12 (lauryl sodium sulfate), 3% white carbon black, 5% sulphur ammonium, diatomite adds to 100% weight portion.The method of the frequent regulation of above-mentioned raw materials water intaking dispersible granule is promptly mixed, ultra micro comminution by gas stream, mixing, granulation step are produced 72% nicosulfuron atrazine fluroxypyr water dispersible granules.
The part by weight of nicosulfuron and atrazine and fluroxypyr can change between 1～50:1～80:1～50 in the present embodiment, and both total weight items still are 72%, form new embodiment.
Example of formulations 4:
Take by weighing 2% nicosulfuron, 23% atrazine, 10% fluroxypyr, 3% TERSPERSE4894 (U.S. Huntsman Corporation product), 2% TERSPERSE 2500 (U.S. Huntsman Corporation product), 3%TERSPERSE 2425 (U.S. Huntsman Corporation product), 10% epoxidized soybean oil, 3% white carbon, 5% ethylene glycol, soybean oil adds to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, with making 35% nicosulfuron atrazine fluroxypyr oil-suspending agent behind the sand mill sand milling.
The part by weight of nicosulfuron and atrazine and fluroxypyr can change between 1～50:1～80:1～50 in the present embodiment, and both total weight items still are 35%, form new embodiment.
Example of formulations 5:
Take by weighing 1% nicosulfuron, 34% atrazine, 5% fluroxypyr, 3% TERSPERSE 4894 (U.S. Huntsman Corporation product), 2% TERSPERSE 2500 (U.S. Huntsman Corporation product), 3% TERSPERSE 2425 (U.S. Huntsman Corporation product), 2% epoxychloropropane, 3% bentonite, 5% glycerine, methyl oleate and add to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, with making 40% nicosulfuron atrazine fluroxypyr oil-suspending agent behind the sand mill sand milling.
The part by weight of nicosulfuron and atrazine and fluroxypyr can change between 1～50:1～80:1～50 in the present embodiment, and both total weight items still are 40%, form new embodiment.
Example of formulations 6:
Take by weighing 4% nicosulfuron, 14% atrazine, 20% fluroxypyr, 4% TERSPERSE4894 (U.S. Huntsman Corporation product), 3% TERSPERSE 2500 (U.S. Huntsman Corporation product), 3%TERSPERSE 2425 (U.S. Huntsman Corporation product), 2% epoxychloropropane, 3% white carbon, 5% glycerine, corn oil and add to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, with making 38% nicosulfuron atrazine fluroxypyr oil-suspending agent behind the sand mill sand milling.
The part by weight of nicosulfuron and atrazine and fluroxypyr can change between 1～50:1～80:1～50 in the present embodiment, and both total weight items still are 38%, form new embodiment.
Example of formulations 7:
Take by weighing 2% nicosulfuron, 23% atrazine, 10% fluroxypyr, 6% calcium lignosulfonate, 3% Nekal BX (nekal), 2%K-12 (lauryl sodium sulfate), 5% white carbon black, kaolin and add to 100% weight portion.Above-mentioned raw materials makes 35% nicosulfuron atrazine fluroxypyr wetting powder through mixing behind the comminution by gas stream.
The part by weight of nicosulfuron and atrazine and fluroxypyr can change between 1～50:1～80:1～50 in the present embodiment, and both total weight items still are 35%, form new embodiment.
Example of formulations 8:
Take by weighing 1% nicosulfuron, 60% atrazine, 4% fluroxypyr, 5% calcium lignosulfonate, 2% Nekal BX (nekal), 2%K-12 (lauryl sodium sulfate), 5% white carbon black, kaolin and add to 100% weight portion.Above-mentioned raw materials makes 65% nicosulfuron atrazine fluroxypyr wetting powder through mixing behind the comminution by gas stream.
The part by weight of nicosulfuron and atrazine and fluroxypyr can change between 1～50:1～80:1～50 in the present embodiment, and both total weight items still are 65%, form new embodiment.
Example of formulations 9:
Take by weighing 50% nicosulfuron, 2% atrazine, 23% fluroxypyr, 4% calcium lignosulfonate, 3% TERSPERSE 2700 (polycarboxylate, U.S. Huntsman Corporation produces), 2% Nekal BX (nekal), 2%K-12 (lauryl sodium sulfate), 3% white carbon black, kaolin adds to 100% weight portion.Above-mentioned raw materials makes 75% nicosulfuron atrazine fluroxypyr wetting powder through mixing behind the comminution by gas stream.
The part by weight of nicosulfuron and atrazine and fluroxypyr can change between 1～50:1～80:1～50 in the present embodiment, and both gross weight compositions still are 75%, form new embodiment.
Example of formulations 10:
Take by weighing 2% nicosulfuron, 2% atrazine, 46% fluroxypyr, 5% calcium lignosulfonate, 5% dispersing agent NNO (alkylnaphthalene sulfonate formaldehyde condensation products), 2% Nekal BX (nekal), 2%K-12 (lauryl sodium sulfate), 5% white carbon black, attapulgite and add to 100% weight portion.Above-mentioned raw materials makes 50% nicosulfuron atrazine fluroxypyr wetting powder through mixing behind the comminution by gas stream.
The part by weight of nicosulfuron and atrazine and fluroxypyr can change between 1～50:1～80:1～50 in the present embodiment, and both total weight items still are 50%, form new embodiment.
Biological Examples 1 is prevented and kill off the corn field weed field trial
The 35% nicosulfuron atrazine fluroxypyr oil-suspending agent that has carried out example of formulations 4 for the local in the Wugong County, Shaanxi Province prevents and kill off the corn field annual weed test of pesticide effectiveness, verified that this medicament is to the control efficiency of corn field weed, effective dose and to the safety of corn.Trial crops is a corn, controlling object is lady's-grass (Digitaria sanguinalis (L.) Scop), green foxtail (Setaria virid (L.) Beauv.), the rhizome of nutgrass flatsedge (Rhizoma Cyperi (Nutgrass Galingale Rhizome), lamb's-quarters (Chenopodiumglaucum Linn), Amaranthus retroflexus (Amaranthus retroflexus L.), field bindweed (Convolvulusarvensis L.), the weeds leaf age is in 2～5 leaf phases.Test medicine and dosage are 35% nicosulfuron atrazine fluroxypyr oil-suspending agent 50g/ mu, 60g/ mu, 70g/ mu, 4% nicosulfuron oil suspending agent 100g/ mu, 80% atrazine wetting powder 100g/ mu, 20% fluroxypyr missible oil 70g/ mu.Adopt conventional spray-on process.
Each chemicals treatment district compares with contiguous blank district, estimates the weeds population, with the indexs such as quantity, cover degree, height and healthy and strong growing way of weeds, represents (with contrast is 0%, and death is 100% fully) with percentage.
Every sub-district is selected 5 points, every some 1m at random
2Carry out sample investigation, record weeds kind, weeds strain number, cover degree and weeds weight.
The drug effect computational methods:
In the formula: CK is the remaining careless number in blank district;
PT is the remaining careless number in chemicals treatment district.
Table 1 35% nicosulfuron atrazine fluroxypyr oil-suspending agent is to the corn field weed preventive effect
Table 2 35% nicosulfuron atrazine fluroxypyr oil-suspending agent is to the corn field weed preventive effect
Table 3 35% nicosulfuron atrazine fluroxypyr oil-suspending agent is to the corn field weed preventive effect
Table 4 35% nicosulfuron atrazine fluroxypyr oil-suspending agent is to the corn field weed preventive effect
Table 5 35% nicosulfuron atrazine fluroxypyr oil-suspending agent is to the corn field weed preventive effect
Table 6 35% nicosulfuron atrazine fluroxypyr oil-suspending agent is to the corn field weed preventive effect
The analysis of table 7 significance of difference
Table 7 for to behind the medicine 30 days the time control efficiency (strain number and fresh weight) of each sub-district carry out the biostatistics analysis, analysis result shows: handle differences and reach utmost point significance level, district's group difference is not remarkable.Significance of difference comparative result shows: consistent with the significance of difference on 0.01 level on 0.05 level, the difference of comparing in twos between 35% nicosulfuron atrazine fluroxypyr oil-suspending agent 70g/ mu, 60g/ mu, 3 processing of 50g/ mu all reaches utmost point significance level, and 35% nicosulfuron atrazine fluroxypyr oil-suspending agent 70g/ mu, 60g/ mu are respectively handled differences with test and all reached utmost point significance level; It is not remarkable that its 50g/ mu and 4% nicosulfuron oil suspending agent 100g/ mu are handled differences, and both all reach utmost point significance level with 80% atrazine wetting powder 100g/ mu, 20% fluroxypyr missible oil 70g/ mu processing differences, and 80% atrazine wetting powder 100g/ mu and 20% fluroxypyr missible oil 70g/ mu are handled differences and reached utmost point significance level.
Field test results shows: 35% nicosulfuron atrazine fluroxypyr oil-suspending agent has significant preventive effect to corn field weed, and the preventive effect of its 70g/ mu, 60g/ mu obviously is better than contrasting the preventive effect of medicament 4% nicosulfuron oil suspending agent 100g/ mu, 80% atrazine wetting powder 100g/ mu, 20% fluroxypyr missible oil 70g/ mu; After being mixed, 3 kinds of components solved the agent of nicosulfuron list to part broad leaved weed preventive effect difference and the agent of atrazine list a difficult problem to grassy weed and nutgrass flatsedge weak effect, to corn safety, improved the comprehensive preventive effect of corn field weed and saved drug cost, to corn safety.
Biological Examples 2 is prevented and kill off the corn field weed field trial
Carried out 35% nicosulfuron atrazine fluroxypyr wetting powder of example of formulations 7 at the Cai Zhuan south of a town, Weizhi County, Henan Province Meng Zhuan and prevented and kill off the corn field annual weed test of pesticide effectiveness, verified that this medicament is to the control efficiency of corn field weed, effective dose and to the safety of corn.Trial crops is a corn, controlling object is lady's-grass (Digitaria sanguinalis (L.) Scop), green foxtail (Setaria virid (L.) Beauv.), the rhizome of nutgrass flatsedge (Rhizoma Cyperi (Nutgrass Galingale Rhizome)), lamb's-quarters (Chenopodium glaucum Linn), Amaranthus retroflexus (Amaranthus retroflexus L.), field bindweed (Convolvulus arvensis L.) weeds leaf age is in 3～6 leaf phases.Test medicine and dosage are 35% nicosulfuron atrazine fluroxypyr wetting powder 50g/ mu, 60g/ mu, 70g/ mu, 4% nicosulfuron oil suspending agent 100g/ mu, 80% atrazine wetting powder 100g/ mu, 20% fluroxypyr missible oil 70g/ mu.Adopt conventional spray-on process.
Each chemicals treatment district compares with contiguous blank district, estimates the weeds population, with the indexs such as quantity, cover degree, height and healthy and strong growing way of weeds, represents (with contrast is 0%, and death is 100% fully) with percentage.
Every sub-district is selected 5 points, every some 1m at random
2Carry out sample investigation, record weeds kind, weeds strain number, cover degree and weeds weight.
The drug effect computational methods:
In the formula: CK is the remaining careless number in blank district;
PT is the remaining careless number in chemicals treatment district.
Table 8 35% nicosulfuron atrazine fluroxypyr wetting powder is to the corn field weed preventive effect
Table 9 35% nicosulfuron atrazine fluroxypyr wetting powder is to the corn field weed preventive effect
Table 10 35% nicosulfuron atrazine fluroxypyr wetting powder is to the corn field weed preventive effect
Table 11 35% nicosulfuron atrazine fluroxypyr wetting powder is to the corn field weed preventive effect
Table 12 35% nicosulfuron atrazine fluroxypyr wetting powder is to the corn field weed preventive effect
Table 13 35% nicosulfuron atrazine fluroxypyr wetting powder is to the corn field weed preventive effect
The analysis of table 14 significance of difference
As shown in table 14, to behind the medicine 30 days the time control efficiency (strain number and fresh weight) of each sub-district carry out the biostatistics analysis, analysis result shows: handle differences and reach utmost point significance level, district's group difference is not remarkable.Significance of difference comparative result shows: consistent with the significance of difference on 0.01 level on 0.05 level, 35% nicosulfuron atrazine fluroxypyr wetting powder 70g/ mu, 60g/ mu are handled differences with each medicament gauge table of test and are all reached utmost point significance level; It is not remarkable that its 50g/ mu and 4% nicosulfuron oil suspending agent 100g/ mu are handled differences, and both all reach utmost point significance level with 80% atrazine wetting powder 100g/ mu, 20% fluroxypyr missible oil 70g/ mu processing differences, and 80% atrazine wetting powder 100g/ mu and 20% fluroxypyr missible oil 70g/ mu are handled differences and reached utmost point significance level.
Field test results shows: 35% nicosulfuron atrazine fluroxypyr wetting powder has significant preventive effect to corn field weed, and the preventive effect of its 70g/ mu, 60g/ mu obviously is better than contrasting the preventive effect of medicament 4% nicosulfuron oil suspending agent 100g/ mu, 80% atrazine wetting powder 100g/ mu, 20% fluroxypyr missible oil 70g/ mu; After being mixed, 3 kinds of components solved the agent of nicosulfuron list to part broad leaved weed preventive effect difference and the agent of atrazine list a difficult problem to grassy weed and nutgrass flatsedge weak effect, improve simultaneously quick-acting and comprehensive preventive effect greatly to corn field weed, saved drug cost simultaneously, to corn safety.
Biological Examples 3: prevent and kill off the corn field weed field trial
The 50% nicosulfuron atrazine fluroxypyr water dispersible granules that has carried out example of formulations 2 for the local in the Wugong County, Shaanxi Province prevents and kill off the corn field annual weed test of pesticide effectiveness, verified that this medicament is to the control efficiency of corn field weed, effective dose and to the safety of corn.Trial crops is a corn, controlling object is lady's-grass (Digitaria sanguinalis (L.) Scop), green foxtail (Setaria virid (L.) Beauv.), the rhizome of nutgrass flatsedge (Rhizoma Cyperi (Nutgrass Galingale Rhizome)), lamb's-quarters (Chenopodium glaucum Linn), Amaranthus retroflexus (Amaranthus retroflexus L.), field bindweed (Convolvulus arvensis L.) weeds leaf age is in 2～5 leaf phases.Test medicine and dosage are 50% nicosulfuron atrazine fluroxypyr water dispersible granules 30g/ mu, 40g/ mu, 50g/ mu, 4% nicosulfuron oil suspending agent 100g/ mu, 80% atrazine wetting powder 100g/ mu, 20% fluroxypyr missible oil 70g/ mu.Adopt conventional spray-on process.
Each chemicals treatment district compares with contiguous blank district, estimates the weeds population, with the indexs such as quantity, cover degree, height and healthy and strong growing way of weeds, represents (with contrast is 0%, and death is 100% fully) with percentage.
Every sub-district is selected 5 points, every some 1m at random
2Carry out sample investigation, record weeds kind, weeds strain number, cover degree and weeds weight.
The drug effect computational methods:
In the formula: CK is the remaining careless number in blank district;
PT is the remaining careless number in chemicals treatment district.
Table 15 50% nicosulfuron atrazine fluroxypyr water dispersible granules is to the corn field weed preventive effect
Table 16 50% nicosulfuron atrazine fluroxypyr water dispersible granules is to the corn field weed preventive effect
Table 17 50% nicosulfuron atrazine fluroxypyr water dispersible granules is to the corn field weed preventive effect
Table 18 50% nicosulfuron atrazine fluroxypyr water dispersible granules is to the corn field weed preventive effect
Table 19 50% nicosulfuron atrazine fluroxypyr water dispersible granules is to the corn field weed preventive effect
Table 20 50% nicosulfuron atrazine fluroxypyr water dispersible granules is to the corn field weed preventive effect
Table 21 significance of difference analytical table
Shown in table 21, to behind the medicine 30 days the time control efficiency (strain number and fresh weight) of each sub-district carry out the biostatistics analysis, analysis result shows: handle differences and reach extremely outstanding level, district's group difference is not remarkable.Significance of difference comparative result shows: consistent with the significance of difference on 0.01 level on 0.05 level, the difference of comparing in twos between 50% nicosulfuron atrazine fluroxypyr water dispersible granules 50g/ mu, 40g/ mu, 3 processing of 30g/ mu all reaches utmost point significance level, and 50% nicosulfuron atrazine fluroxypyr water dispersible granules 50g/ mu, 40g/ mu are respectively handled differences with test and all reached utmost point significance level; It is not remarkable that its 30g/ mu and 4% nicosulfuron oil suspending agent 100g/ mu are handled differences, and both all reach utmost point significance level with 80% atrazine wetting powder 100g/ mu, 20% fluroxypyr missible oil 70g/ mu processing differences, and 80% atrazine wetting powder 100g/ mu and 20% fluroxypyr missible oil 70g/ mu are handled differences and reached utmost point significance level.
Field test results shows: 50% nicosulfuron atrazine fluroxypyr water dispersible granules has significant preventive effect to corn field weed, and the preventive effect of its 50g/ mu, 40g/ mu obviously is better than contrasting the preventive effect of medicament 4% nicosulfuron oil suspending agent 100g/ mu, 80% atrazine wetting powder 100g/ mu, 20% fluroxypyr missible oil 70g/ mu; Having solved the phonetic single agent of cigarette after 3 kinds of medicaments are mixed inscribes the problem of grassy weed and nutgrass flatsedge weak effect part broad leaved weed preventive effect difference and the agent of atrazine list, the adding of this composition of fluroxypyr simultaneously improves the comprehensive preventive effect of corn field weed greatly and has saved drug cost, to corn safety.
Comprehensively above-mentioned, component of the present invention is reasonable, the activity that preventive effect is better than each component when using separately, have synergistic effect, enlarge the control of weeds spectrum, reduce spraying times, reduce the control cost, slow down the generation of weeds resistance, good to crop safety, meet the security requirement of pesticidal preparations.
Claims (4)
1, a kind of herbicidal composition is characterized in that with nicosulfuron, atrazine and fluroxypyr be active component, and wherein the triangular weight ratio of nicosulfuron, atrazine and fluroxypyr is 1～50:1～80:1～50.
2, herbicidal composition according to claim 1 is characterized in that the triangular weight ratio of nicosulfuron, atrazine and fluroxypyr is 1～10:1～50:1～20.
3, herbicidal composition according to claim 1 is characterized in that: the formulation of described herbicidal composition is water dispersible granules, oil-suspending agent or wetting powder.
4, one of any application of described herbicidal composition in preventing and kill off grassy weed and broad leaved weed of claim 1 to 3.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910022214A CN101530103A (en) | 2009-04-27 | 2009-04-27 | Herbicide composition |
| CN200910173828.6A CN101637175B (en) | 2009-04-27 | 2009-09-03 | Herbicide composition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910022214A CN101530103A (en) | 2009-04-27 | 2009-04-27 | Herbicide composition |
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| CN101530103A true CN101530103A (en) | 2009-09-16 |
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| CN200910022214A Pending CN101530103A (en) | 2009-04-27 | 2009-04-27 | Herbicide composition |
| CN200910173828.6A Active CN101637175B (en) | 2009-04-27 | 2009-09-03 | Herbicide composition |
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|---|---|---|---|
| CN200910173828.6A Active CN101637175B (en) | 2009-04-27 | 2009-09-03 | Herbicide composition |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101971843A (en) * | 2010-10-22 | 2011-02-16 | 吉林金秋农药有限公司 | Herbicide composition as well as preparation method and application thereof |
| WO2011056631A3 (en) * | 2009-10-28 | 2012-06-28 | Dow Agrosciences Llc | Synergistic herbicidal composition containing fluroxypyr and penoxsulam, halosulfuron-methyl, imazamox or imazethapyr |
| CN102972422A (en) * | 2012-10-30 | 2013-03-20 | 辽宁海佳农化有限公司 | Herbicide containing fluroxypyr, nicosulfuron and atrazine and preparation method thereof |
| CN103222470A (en) * | 2012-01-31 | 2013-07-31 | 胡登魁 | Leaves-removing herbicide after seedling emergence |
| CN104488934A (en) * | 2014-11-27 | 2015-04-08 | 广东中迅农科股份有限公司 | Foramsulfuron-containing weeding composition |
| CN104542662A (en) * | 2014-12-16 | 2015-04-29 | 广东中迅农科股份有限公司 | Weeding composition containing amicarbazone, fluroxypyr and nicosulfuron |
| CN104920381A (en) * | 2015-06-19 | 2015-09-23 | 陕西上格之路生物科学有限公司 | Ternary weeding composite comprising amicarbazone |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104106584A (en) * | 2014-01-26 | 2014-10-22 | 山东先达农化股份有限公司 | Cornfield compounded herbicide composition |
| CN105901035A (en) * | 2016-05-17 | 2016-08-31 | 梁文荣 | Herbicide specially used for cyperaceous weeds |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320376A (en) * | 2001-04-17 | 2001-11-07 | 丹东市红泽农化有限公司 | Agricultural atrazine-nicosulfuron herbicide |
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2009
- 2009-04-27 CN CN200910022214A patent/CN101530103A/en active Pending
- 2009-09-03 CN CN200910173828.6A patent/CN101637175B/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011056631A3 (en) * | 2009-10-28 | 2012-06-28 | Dow Agrosciences Llc | Synergistic herbicidal composition containing fluroxypyr and penoxsulam, halosulfuron-methyl, imazamox or imazethapyr |
| US8614167B2 (en) | 2009-10-28 | 2013-12-24 | Dow Agrosciences, Llc. | Synergistic herbicidal composition containing fluroxypyr and penoxsulam, halosulfuron-methyl, imazamox or imazethapyr |
| US8940661B2 (en) | 2009-10-28 | 2015-01-27 | Dow Agrosciences Llc | Synergistic herbicidal composition containing fluroxypyr and penoxsulam, halosulfuron-methyl, imazamox or imazethapyr |
| EP3036993A3 (en) * | 2009-10-28 | 2016-08-03 | Dow AgroSciences LLC | Synergistic herbicidal composition containing fluroxypyr and halosulfuron-methyl, imazamox or imazethapyr |
| CN101971843A (en) * | 2010-10-22 | 2011-02-16 | 吉林金秋农药有限公司 | Herbicide composition as well as preparation method and application thereof |
| CN103222470A (en) * | 2012-01-31 | 2013-07-31 | 胡登魁 | Leaves-removing herbicide after seedling emergence |
| CN102972422A (en) * | 2012-10-30 | 2013-03-20 | 辽宁海佳农化有限公司 | Herbicide containing fluroxypyr, nicosulfuron and atrazine and preparation method thereof |
| CN104488934A (en) * | 2014-11-27 | 2015-04-08 | 广东中迅农科股份有限公司 | Foramsulfuron-containing weeding composition |
| CN104542662A (en) * | 2014-12-16 | 2015-04-29 | 广东中迅农科股份有限公司 | Weeding composition containing amicarbazone, fluroxypyr and nicosulfuron |
| CN104920381A (en) * | 2015-06-19 | 2015-09-23 | 陕西上格之路生物科学有限公司 | Ternary weeding composite comprising amicarbazone |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101637175B (en) | 2015-04-08 |
| CN101637175A (en) | 2010-02-03 |
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