CN105494368A - Compound weeding composition - Google Patents
Compound weeding composition Download PDFInfo
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- CN105494368A CN105494368A CN201510942845.7A CN201510942845A CN105494368A CN 105494368 A CN105494368 A CN 105494368A CN 201510942845 A CN201510942845 A CN 201510942845A CN 105494368 A CN105494368 A CN 105494368A
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- careless amine
- herbicidal composition
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- fenclorim
- oxyfluorfen
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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
- A01N43/82—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 five-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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/12—Powders or granules
- A01N25/14—Powders or granules wettable
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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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/32—Ingredients for reducing the noxious effect of the active substances to organisms other than pests, e.g. toxicity reducing compositions, self-destructing compositions
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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
- A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
- A01N33/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds containing nitrogen-to-oxygen bonds
- A01N33/18—Nitro compounds
- A01N33/20—Nitro compounds containing oxygen or sulfur attached to the carbon skeleton containing the nitro group
- A01N33/22—Nitro compounds containing oxygen or sulfur attached to the carbon skeleton containing the nitro group having at least one oxygen or sulfur atom and at least one nitro group directly attached to the same aromatic ring system
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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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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Toxicology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a compound weeding composition. The compound weeding composition is prepared from pretilachlor, oxyfluorfen, oxadiazon and fenclorim, wherein the weight ratio of pretilachlor to oxyfluorfen to oxadiazon is (28-36):(5-9):(7-15), and the weight ratio of pretilachlor to fenclorim is (1-2):1. The compound weeding composition is convenient to apply, low in cost, capable of effectively reducing the using amount and reducing use frequency, wide in weeding spectrum, capable of effectively delaying weed herbicide resistance and ideal in weeding effect.
Description
Technical field
The invention belongs to chemical pesticide field, especially relate to a kind of complex herbicidal composition for rice field annual weed and resistant biotypes weeds.
Background technology
Third careless amine (Pretilachlor) belongs to 2-acetyl chloride for phenyl amines weed killer herbicide, to selectivity preemergence herbicide, and cell division inhibitor.Weeds absorb medicament by middle hypocotyl and coleoptile, and interferencing protein synthesizes, and also have remote-effects to the photosynthesis of weeds and respiration.Generally pass through soil treatment, certain effect is had to weeds such as paddy field barnyard grass, duck leaf grass, difformed galingale herb, Brittle Falsepimpernel Herb, needle spikesedge herb, kind algae, firefly Lins, but along with high dose and the effect repeating to select of chemical herbicide, the resistant weeds such as this Compounds Against biotype opposite sex nutgrass flatsedge current, preventive effect presents obvious downward trend, often after dispenser, 15-20 days needs supplement spraying cauline leaf inorganic agent, control the generation of weeds.
Oxyfluorfen (oxyfuorfen) belongs to fluorine-containing benzene ether-derivative herbicides, and it plays activity of weeding when there being light.Enter in plant corpus mainly through coleoptile, mesocotyl, less through root absorption, and have denier upwards to be transported by root to enter leaf portion.Certain preventive effect is had, very anti-leaching to barnyard grass, sesbania, downy brome, green foxtail, datura, quackgrass, artemisiifolia, thorn chrysanthemum sth. made by twisting, piemarker, charlock unifacial leaf and broad leaved weed.But it is thorough that this compound has weeding in single dose use procedure, the shortcomings such as easy bounce-back.
Evil humulone (oxadiazon) belong to before selectivity bud and after bud in the heterocyclic compound weed killer herbicide of absorption protoporphyrin oxidase inhibitor.Absorb mainly through the young shoot of susceptible weeds or seedling contact and work, to be unearthed but the weeds of not yet surfacing are effective.Evil humulone need play activity of weeding under the effect of light, and herbicidal effect affects larger by weather effect.
Fenclorim (fenclorin) is that one is used for conserving culture rice from the careless amine poisoning of paddy rice third.
Biotype (Biotype) refers to that in population or between population, performance has the monoid of different physiological and ecological characteristic.The difference of the season activity between the Different groups caused by the condition difference that other are natural or artificial, biorhythm, body size, color, pesticide resistance, the potential energy that migrates, sex hormone, isozymogram, genotype frequency etc.All these plant the monoid of lower differentiation, can be summarized as biotype except subspecies.Resistant biotypes weeds involved in the present invention produce the chemical herbicide that main cause is the artificial Long-Time Service same class mechanism of action, and cause the original pesticide resistance that the weeds of this herbicide sensitive were produced, between population, define resistant biotypes weeds.
Difformed galingale herb (cyperusdifformisl.) belongs to sedge family, annual herb.Stalk is grown thickly, high 2-65 centimetre, flat three prismatic.Seminal propagation.North to northeast and Hebei, Shanxi, Shaanxi, reaching Guangdong, each provinces and regions, Yunnan in the south all has distribution.Be born in rice field or fringe wetland; Part paddy rice is injured seriously, and swale Dry crop is also by its evil.According to surveying and determination, in the rice field of per mu yield 450kg, every mu often increases by 0.6 ten thousand strain difformed galingale herbs, can make paddy underproduction 31.78kg.Chemical weed control is the effective means of preventing and kill off sedge weed.The U.S. in 2002 finds that in rice field, California difformed galingale herb produces cross resistance to the two careless ether of pyrimidinylthiobenzoate herbicides and sulfonylurea herbicide bensulfuron-methyl; Within 2003, Korea S finds to produce the difformed galingale herb of resistance to bensulfuron-methyl, AC322140 and pyrazosulfuron cooperation interaction resistance to imazosulfuron (Imazosulfuron) in the rice field in South Cholla area.At present, the weed killer herbicides such as weed killer herbicide kind bentazone, methoxone, halosulfuronmethyl, pyrazosulfuron, bensulfuron-methyl, two careless ether, penoxsuam have been registered by China, the preventive effect of difformed galingale herb is also reduced greatly, effectively cannot control the harm of difformed galingale herb to paddy rice, make peasant therefore suffer huge economic loss.
Granule (Granule) processes granular preparation by fillers such as former medicine, wetting agent, dispersant, binding agent, carriers.Compare with formulations such as traditional wetting powder, missible oil, there is medicine by Root Absorption, to crop leaf not damaged; Without the contacts such as dust and toxicity on inhalation in dispenser process; Granule effectively can control the rate of release of active ingredient, reduces spraying times, extends the lasting period.
The present invention is to containing the third careless amine, Oxyfluorfen with the complex herbicidal composition operation technique of Evil humulone conducts in-depth research, through lot of experiments, find the synergistic function between each chemicals, make it composition and effectively can prevent and kill off rice field annual weed and resistant biotypes weeds.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of to the more high and low poison of crop safety, low-residual, broad weed-killing spectrum, effectively can delay the complex herbicidal composition of herbicide resistance.
The technical solution adopted for the present invention to solve the technical problems is: a kind of complex herbicidal composition, comprise following active principle: the third careless amine, Oxyfluorfen, Evil humulone and fenclorim, described third careless amine, Oxyfluorfen are with the weight ratio of Evil humulone is (28-36): (5-9): (7-15); The weight ratio of described third careless amine and fenclorim is (1-2): 1.
As preferably, the weight ratio of described third careless amine and fenclorim is 3:2.
As preferably, described third careless amine, Oxyfluorfen are with the weight ratio of Evil humulone is 32:7:11.
As preferably, described third careless amine, Oxyfluorfen are with the weight of Evil humulone accounts for the 1-10% of composition total weight.
As preferably, described active principle becomes bead dosage form with filler hybrid process, and described filler comprises wetting agent, dispersant, bonding agent, carrier.
As preferably, described wetting agent accounts for the 1-5% of composition total weight; Described dispersant accounts for the 5-15% of composition total weight; Described bonding agent accounts for the 1-5% of composition total weight; Described carrier accounts for the 1-80% of composition total weight.
As preferably, described wetting agent is one or more in a-sodium olefin sulfonate, lauryl sodium sulfate, sodium sulfate of polyethenoxy ether of fatty alcohol, fatty alcohol-polyoxyethylene ether.
As preferably, described dispersant is one or more in sodium lignin sulfonate, naphthalenesulfonatedispersant dispersant, alkyl naphthalene sulfonic acid dipersant, polycarboxylate salt dispersant.
As preferably, described binding agent is one or more in glucose, polyethylene glycol, corn starch, sodium carboxymethylcellulose.
As preferably, described carrier is one or more in white carbon, kaolin, attapulgite, diatomite, fine particle calcium carbonate.
The frequency of utilization of complex herbicidal composition of the present invention and usage amount along with plant growth, weeds occur, Changes in weather and have a small amount of change, the object of effectively preventing and treating can be reached by using suitable dosage.
The careless amine of its active component third of complex herbicidal composition of the present invention, Oxyfluorfen He Evil humulone and safener fenclorim are composite by a certain percentage to be used jointly afterwards, obtain obvious synergistic function, overcome the deficiency containing single-activity component weed killer herbicide, reduce the consumption of single-activity composition, can effectively prevent and kill off paddy field annual weed, particularly paddy field resistant biotypes difformed galingale herb, has superelevation preventive effect.
The formulation that the present invention processes is granule, the advantages such as the convenience that controllability, the preparation with active ingredient release are used and safety.Adjuvant used genus environmental protection type in the present invention, low toxicity, low-residual, to rice safety, can not produce murder by poisoning in use to crop, fishes and shrimps and water body.
In sum, the invention has the beneficial effects as follows, use conveniently, cost is low, effectively can reduce usage amount, and reduce times for spraying, broad weed-killing spectrum, effectively can delay herbicide resistance, and herbicidal effect is desirable.
Embodiment
Better the present invention program is understood in order to make those skilled in the art person, clear, complete description is carried out below by the technical scheme in inventive embodiments, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
In following each embodiment, active ingredient adopts the 95% the third former medicine of careless amine, the former medicine of 97% Oxyfluorfen, the former medicine of 97% Evil humulone, 99.3% fenclorims, and former medicine and filler composition are commercially available.
Embodiment 1
Third careless amine 3.2%, Oxyfluorfen 0.7% ， Evil humulone 1.1%, fenclorim 2.1%, a-sodium olefin sulfonate (AOS) 1%, sodium lignin sulfonate (REAX82P) 5%, glucose 5%, white carbon 5%, kaolin surplus.The third careless amine white carbon absorption is taken after standing 24 hours in advance according to aforementioned proportion, other compositions above-mentioned are mixed in described ratio, through air-flow crushing, material average grain diameter is made to be less than 5 microns, and add water kneading evenly, move to granulation in Granulation Equipments, after oven dry the 5% the third careless amine Yi oxygen Fu Cao Mi Evil humulone granules.
Embodiment 2
Third careless amine 4.1%, Oxyfluorfen 1.3% ， Evil humulone 2.1%, fenclorim 2.3%, lauryl sodium sulfate 1%, naphthalenesulfonatedispersant dispersant (MORWETD425) 5%, Macrogol 4000 5%, white carbon 5%, attapulgite surplus.The third careless amine white carbon absorption is taken after standing 24 hours in advance according to aforementioned proportion, other compositions are mixed in described ratio, through air-flow crushing, material average grain diameter is made to be less than 5 microns, and add water kneading evenly, move to granulation in Granulation Equipments, after oven dry the third careless amine Yi oxygen Fu Cao Mi Evil humulone granule.
Embodiment 3
Third careless amine 3.5%, Oxyfluorfen 0.9% ， Evil humulone 1.3%, fenclorim 2.5%, sodium sulfate of polyethenoxy ether of fatty alcohol 1%, polycarboxylate salt dispersant (TERSPERSE2700) 5%, corn starch 5%, white carbon 5%, diatomite surplus.The third careless amine white carbon absorption is taken after standing 24 hours in advance according to aforementioned proportion, other compositions are mixed in described ratio, through air-flow crushing, material average grain diameter is made to be less than 5 microns, and add water kneading evenly, move to granulation in Granulation Equipments, after oven dry the third careless amine Yi oxygen Fu Cao Mi Evil humulone granule.
Embodiment 4
Third careless amine 3.6%, Oxyfluorfen 0.8%, Evil humulone 1.3%, fenclorim 2.0%, fatty alcohol-polyoxyethylene ether AEO-51%, alkyl naphthalene sulfonic acid dipersant TERSPERSE202010%, sodium carboxymethylcellulose 3%, white carbon 5%, fine particle calcium carbonate surplus.After in advance the third careless amine being left standstill 24 hours according to the absorption of aforementioned proportion white carbon, other compositions above-mentioned are mixed in described ratio, through air-flow crushing, material average grain diameter is made to be less than 5 microns, and add water kneading evenly, move to granulation in Granulation Equipments, after oven dry the third careless amine Yi oxygen Fu Cao Mi Evil humulone granule.
In order to verify the effect of complex herbicidal composition, the present invention adopts the mode of indoor biometrics to evaluate the third careless amine (containing safener), Oxyfluorfen He the different proportion co-toxicity experiment of Evil humulone.
1. reagent agent
The 95% the third former medicine of careless amine, the former medicine of 97% Oxyfluorfen, the former medicines of 97% Evil humulone, 99.3% fenclorim.
2. test target
Resistant biotypes difformed galingale herb seed collection, in Shanghai Songjiang in September, 2013 district, dries, and 4 degrees Celsius of constant temperature are preserved stand-by.
3. testing equipment
Beaker, electronic balance, liquid-transfering gun, spray tower (Nanjing Agriculturing Mechanization Inst., Ministry of Agriculture, 3WPSH-500D, atomisation pressure 3.0kg/cm3)
4. experimental procedure
Adopt potted plant soil spraying facture: at the in-built quantitative air-dry fine earth of polypots (9cm*9cm), for examination target planting seed in polypots body, rear fine earth will be broadcast and cover thick 0.2cm.Be positioned in greenhouse and cultivate, adopt the mode moisturizing of bottom-irrigating, keep ground moistening, before after planting no seedlings, adopt soil spraying process.After process, examination material is positioned over green house cultivation, routine observation target victimization state, within 7th, measures target afterwards and sprouts quantity, calculate the Germination suppression rate of each process to target.
5. medicament configuration and design
First take the former medicine of the third careless amine of constant weight, the former medicine of Oxyfluorfen former Yao, Evil humulone, add DMF solvent and fully dissolve the dilution of the rear use 0.1% Tween 80 aqueous solution, be configured to single dose mother liquor, arrange serial proportioning according to mixture object, each proportioning arranges 6-9 concentration gradient.
Table 1 drug concentration gradient design table
6. data statistics and analysis:
6.1 according to investigation statistics, calculating fresh weight inhibition (%)
Number * 100% is sprouted in Germination suppression rate (%)=(contrast is sprouted number-process and sprouted number)/contrast
6.2 co-toxicity coefficient methods
Adopt DPS data processing software to obtain the virulence regression equation of the careless amine of single dose third, Oxyfluorfen, Evil humulone and 17 groups of Ternary preparations according to Germination suppression rate, calculate ED50 value, 95% confidence level and calculate co-toxicity coefficient by the abundant method of Sun Yun.
The ED50*100 of the ED50/ Mixed Pharmacy of actual toxicity index ATI=standard agent
Theoretical toxicity index TTI=standard agent toxicity index * standard agent is percentage+reagent agent toxicity index 1* reagent agent 1 percentage+reagent agent toxicity index 2* reagent agent 2 percentage in mixing assembly in mixing assembly in mixing assembly
Co-toxicity coefficient (CTC)=ATI/TTI*100%
Co-toxicity coefficient is calculated by the abundant method of Sun Yun.Co-toxicity coefficient is greater than 120 and is expressed as synergistic effect, is less than 80 and is expressed as antagonism, be expressed as summation action between 80-120.
7. test results and analysis
The synergy of table 2 complex herbicidal composition antagonism biotype nutgrass flatsedge
According to the abundant co-toxicity coefficient method of Sun Yun, co-toxicity coefficient is greater than 120, has synergistic function, and coefficient value is larger, and synergistic function is more remarkable.As table 2, the third careless amine (containing fenclorim), Oxyfluorfen are with the sprouting of Evil humulone 17 groups of Ternary combination antagonism biotype difformed galingale herbs has obvious inhibitory action, 28:5:7 in 17 proportionings; 28:5:15; 28:9:7; 28:9:15; 32:5:7; 32:5:11; 32:5:15; 32:7:7; 32:7:11; 32:7:15; 32:9:7; 32:9:11; 32:9:15; 36:5:7; 36:5:15; 36:9:7; The co-toxicity coefficient of 36:9:15 is respectively 130.0560; 86.3054; 82.5355; 116.3549; 90.5673; 92.0286; 79.6765; 97.5380; 162.0222; 114.3943; 122.6936; 85.5967; 97.3269; 101.3243; 99.4609; 105.0091; 115.8950.According to co-toxicity coefficient principle, the weight ratio of the third careless amine (containing fenclorim), Oxyfluorfen, Evil humulone is (28-36): (5-9): in (7-15) ratio range, the preventive effect of antagonism biotype difformed galingale herb has addition and synergistic function, wherein the ratio of three kinds of active ingredients is 32:7:11, co-toxicity coefficient value is respectively 162.0222, in above ratio range, co-toxicity coefficient value is maximum, and antagonism biotype nutgrass flatsedge synergistic function is the most obvious.
8. land for growing field crops safety example
Embodiment 1
In order to better embody the superiority of this invention.The relatively safety of the 5% the third careless amine (containing fenclorim) Yi oxygen Fu Cao Mi Evil humulone granule (32:7:11) and the 5% the third careless amine (not containing fenclorim) Yi oxygen Fu Cao Mi Evil humulone granule (32:7:11) two group of formula and herbicidal effect.Experimental field select Changsha, Rice Cropping mode is transplanted rice field.Field mainly contains moleplant seed, barnyard grass, different in nature nutgrass flatsedge.In rice transplanting medication after 2 days.Within after medication 3 days-7 days, observe the situation of turning green of paddy rice, when measuring the plant height of medication 15 days paddy rice, herbicidal effect and results, calculate per mu yield.
Table 3 field trial situation
5% the third careless amine (containing fenclorim) Yi oxygen Fu Cao Mi Evil humulone granule (32:7:11) and the 5% the third careless amine Yi oxygen Fu Cao Mi Evil humulone granule (32:7:11) two group of formula compare, product of the present invention i.e. the 5% the third careless amine (containing fenclorim) Yi oxygen Fu Cao Mi Evil humulone granule (32:7:11) are turned green containing paddy rice 2-3 days after safener medication, to turn green 1-2 days ahead of time than artificial weeding; Within 5-7 days, turn green after 5% the third careless amine Yi oxygen Fu Cao Mi Evil humulone granule (32:7:11) medications, turn green than artificial weeding and postpone 1-3 days.After product of the present invention i.e. the 5% the third careless amine (containing fenclorim) second oxygen fluorine grass ether Evil humulone granule (32:7:11) medications, 15 days Plant Height of Rices are suitable with artificial weeding Plant Height of Rice, but a little more than the 5% the third careless amine second oxygen fluorine grass ether Evil humulone granule (32:7:11).Product of the present invention i.e. the 5% the third careless amine (containing fenclorim) Yi oxygen Fu Cao Mi Evil humulone granule (32:7:11) and the 5% the third careless amine Yi oxygen Fu Cao Mi Evil humulone granule (32:7:11) herbicidal effects reach more than 95%, higher than artificial weeding.Product of the present invention i.e. the 5% the third careless amine (containing fenclorim) Yi oxygen Fu Cao Mi Evil humulone granule (32:7:11) paddy rice per mu yield height are than the 5% the third careless amine Yi oxygen Fu Cao Mi Evil humulone granule (32:7:11) 45-75kg.
Therefore, in this complex herbicidal composition, containing safener fenclorim, in use crop rice striking root early, plant height increases, and herbicidal effect is excellent, crop yield improves, and this complex herbicidal composition more not adding safener fenclorim is with the obvious advantage.
The present invention considers from this angle of people, while guarantee herbicidal effect, reduces chemical herbicide in use procedure as far as possible, to the injury of crop, increases the output of crop.
Embodiment 2
Field control effectiveness test prevents and kill off rice transplanting field weed
Test is selected in Changsha Wangcheng County, and this regional water rice field uses weed killer herbicide history for many decades, and Weed Resistance is strong difficult anti-; Soil fertility is unanimously medium; Experimental field rice varieties: hybrid rice; Planting patterns: transplanted rice field, field main weeds has the resistant biotypes weeds such as moleplant seed, Monochoria vaginalis, difformed galingale herb.9 process are established in test altogether, and 3 repetitions are established in each process.Process 1 is the 5% the third careless amine (containing fenclorim) Yi oxygen Fu Cao Mi Evil humulone granule (32:7:11); Process 2 is 24% oxyfluorfen EC; Process 3 is the 30% the third careless amine missible oil; Process 4 is 12% Evil humulone missible oil; Process 6 is contrast (not using weed killer herbicide).After rice transplanting 3 days start dispenser process, concrete grammar, the method process that process 1 adopts field to spread fertilizer over the fields; Process 3 adopts the mode of cauline leaf spraying to use; Other respectively get rid of the method process executed in process employing field.Above medicament provides by research and development department of Zhejiang Tianfeng Biological Science Co., Ltd..
Respondent and method: within after medication 7 days, observe each treatment agent to the impact of paddy growth situation and the victimization state of weeds.After medication 30 days, range estimation barnyard grass, Monochoria vaginalis, difformed galingale herb and the total preventive effect of field weed community.
Table 4 each method process transplanted rice field medication 30 days field control effectiveness test results
According to investigation, after paddy rice medication 7 days, the present invention 5% the third careless amine (containing fenclorim) Yi oxygen Fu Cao Mi Evil humulone granule (3.2:0.7:1.1) is fine to Security of rice within the scope of test dose, paddy growth is normal, has no that blade is burnt, turned to be yellow, the anomaly such as to wither.As can be seen here the present invention within the scope of certain dosage to rice safety.
After the land for growing field crops medication of table 4 in 30 days result of the tests, one, the present invention 5% the third careless amine (containing fenclorim) Yi oxygen Fu Cao Mi Evil humulone granule (3.2:0.7:1.1) resistant biotypes Weed-control effect such as antagonism biotype barnyard grass, Monochoria vaginalis, difformed galingale herb within the scope of test dose is between more than 89%, the total preventive effect in field, more than 95%, reaches the object of preventing and kill off resistant biotypes weeds.Two, the present invention 5% the third careless amine (containing fenclorim) Yi oxygen Fu Cao Mi Evil humulone granule (3.2:0.7:1.1) within the scope of test dose, its herbicidal effect all will apparently higher than contrast chemical weeding effect for it.They are three years old, the present invention 5% the third careless amine (containing fenclorim) Yi oxygen Fu Cao Mi Evil humulone granule (3.2:0.7:1.1) rice transplanting after 3 days respectively dosage be 500-600-700ga.i./667m2, can effectively control careless feelings within paddy rice whole breeding time to occur, reach a drug, the object that a season is carefree.But, contrast medicament (each single dose contrast) all has weak point to paddy field resistant biotypes weeds and overall preventive effect thereof,, there is serious area in careless feelings, also need according to the weeding again of careless feelings in suppression grass the spreading of feelings that at present can only be temporary transient.
As can be seen here, this complex herbicidal composition to rice safety and herbicidal performance is excellent, has potential agricultural extension and is worth within the scope of certain using dosage.
Embodiment 3
Field control effectiveness test prevents and kill off rice planting technology field weed
Test is selected in Xiuqian City of Jiangsu Province, and there is use weed killer herbicide more than ten years history continuously in this paddy field region, and Weed Resistance difficulty is removed; Experimental field rice varieties: hybrid rice; Planting patterns: rice planting technology; Field main weeds has resistant biotypes weeds and the weeds such as cyperus iria, eleusine indica such as resistant biotypes barnyard grass, difformed galingale herb.6 process are established in test altogether, and 3 repetitions are established in each process.Process 1 is the 5% the third careless amine (containing fenclorim) Yi oxygen Fu Cao Mi Evil humulone granule (3.2:0.7:1.1); Process 2 is 42% Ding Cao An Evil humulone missible oil (commercially available); Process 3 is 32% pyrrole phonetic dichloro quinolinic acid wetting powder (commercially available); Process 4 is 37% Sha Bai Lin Evil humulone Oxyfluorfen wetting powder; Process 5 is blank (not using weed killer herbicide), rice planting technology medication after 3 days.
Respondent and method: within after medication 7 days, observe each treatment agent to the impact of paddy growth situation and the victimization state of weeds.After medication 15 days, measure the plant height of paddy rice and resistant biotypes opposite sex nutgrass flatsedge Weed-control effect and the total preventive effect of field weed community.
15 days field control effectiveness test results after the rice seedling bed medication of table 5 each method process rice mechanical transplanting
According to investigation, after paddy rice medication 7 days, the present invention 5% the third is fine to transplanting Security of rice when careless amine (containing fenclorim) Yi oxygen Fu Cao Mi Evil humulone granule (3.2:0.7:1.1) usage amount is 500-600-700ga.i./667m2, paddy growth is normal, has no that blade is burnt, turned to be yellow, the anomaly such as to wither.As can be seen here the present invention within the scope of suitable dosage to transplanting rice safety.
After the land for growing field crops medication of table 5 in 15 days result of the tests, be more than 96% to paddy field resistant biotypes difformed galingale herb preventive effect when the present invention 5% the third careless amine (containing fenclorim) Yi oxygen Fu Cao Mi Evil humulone granule (3.2:0.7:1.1) usage amount is 500-600-700ga.i./667m2, the total preventive effect in field is more than 96%.Compared with contrast medicament, said composition is outstanding especially to the preventive effect of difformed galingale herb, can reach closed effect completely.
As can be seen here, this complex herbicidal composition to transplanting rice safety and herbicidal performance is excellent, has potential agricultural extension and is worth within the scope of certain using dosage.
In the process of this invention, many embodiments are also had not enumerate at this.
To sum up virulence test and field experiment result confirm, the present invention contains the third careless amine (containing fenclorim), Oxyfluorfen with the complex herbicidal composition of Evil humulone, be mainly used in preventing and kill off paddy field annual weed, good preventive effect effect is all had to field resistance biotype weeds, and to rice safety.The advantages such as complex herbicidal composition of the present invention has mechanism of action uniqueness, and using dosage is low, broad weed-killing spectrum, and the lasting period is long.So the present invention contains the research and development of the third careless amine (containing fenclorim), Oxyfluorfen and Evil humulone complex herbicidal composition and popularization has huge economic and social benefit.
Claims (10)
1. a complex herbicidal composition, it is characterized in that: comprise following active principle: the third careless amine, Oxyfluorfen, Evil humulone and fenclorim, described third careless amine, Oxyfluorfen are with the weight ratio of Evil humulone is (28-36): (5-9): (7-15); The weight ratio of described third careless amine and fenclorim is (1-2): 1.
2. complex herbicidal composition according to claim 1, is characterized in that: the weight ratio of described third careless amine and fenclorim is 3:2.
3. complex herbicidal composition according to claim 1, is characterized in that: described third careless amine, Oxyfluorfen are with the weight ratio of Evil humulone is 32:7:11.
4. complex herbicidal composition according to claim 1, is characterized in that: described third careless amine, Oxyfluorfen are with the weight of Evil humulone accounts for the 1-10% of composition total weight.
5. complex herbicidal composition according to claim 1, is characterized in that: described active principle becomes bead dosage form with filler hybrid process, and described filler comprises wetting agent, dispersant, bonding agent, carrier.
6. complex herbicidal composition according to claim 5, is characterized in that: described wetting agent accounts for the 1-5% of composition total weight; Described dispersant accounts for the 5-15% of composition total weight; Described bonding agent accounts for the 1-5% of composition total weight; Described carrier accounts for the 1-80% of composition total weight.
7. complex herbicidal composition according to claim 5, is characterized in that: described wetting agent is one or more in a-sodium olefin sulfonate, lauryl sodium sulfate, sodium sulfate of polyethenoxy ether of fatty alcohol, fatty alcohol-polyoxyethylene ether.
8. complex herbicidal composition according to claim 5, is characterized in that: described dispersant is one or more in sodium lignin sulfonate, naphthalenesulfonatedispersant dispersant, alkyl naphthalene sulfonic acid dipersant, polycarboxylate salt dispersant.
9. complex herbicidal composition according to claim 5, is characterized in that: described binding agent is one or more in glucose, polyethylene glycol, corn starch, sodium carboxymethylcellulose.
10. complex herbicidal composition according to claim 5, is characterized in that: described carrier is one or more in white carbon, kaolin, attapulgite, diatomite, fine particle calcium carbonate.
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| CN1144601A (en) * | 1996-05-29 | 1997-03-12 | 李福元 | Agricultural herbicide composition |
| US20040033901A1 (en) * | 1994-04-15 | 2004-02-19 | Adamoli James R. | Uses for cellulose-containing aggregates |
| CN102334486A (en) * | 2011-11-14 | 2012-02-01 | 山东胜邦绿野化学有限公司 | Composite herbicide and preparation method thereof |
| CN102613208A (en) * | 2012-03-12 | 2012-08-01 | 哈尔滨富利生化科技发展有限公司 | Composition for preventing and removing weeds in rice field |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040033901A1 (en) * | 1994-04-15 | 2004-02-19 | Adamoli James R. | Uses for cellulose-containing aggregates |
| CN1144601A (en) * | 1996-05-29 | 1997-03-12 | 李福元 | Agricultural herbicide composition |
| CN102334486A (en) * | 2011-11-14 | 2012-02-01 | 山东胜邦绿野化学有限公司 | Composite herbicide and preparation method thereof |
| CN102613208A (en) * | 2012-03-12 | 2012-08-01 | 哈尔滨富利生化科技发展有限公司 | Composition for preventing and removing weeds in rice field |
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Application publication date: 20160420 |