CN110235893A - For protecting safener and the application of cereal crops - Google Patents
For protecting safener and the application of cereal crops Download PDFInfo
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- CN110235893A CN110235893A CN201910590325.2A CN201910590325A CN110235893A CN 110235893 A CN110235893 A CN 110235893A CN 201910590325 A CN201910590325 A CN 201910590325A CN 110235893 A CN110235893 A CN 110235893A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
- A01C1/06—Coating or dressing seed
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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
- 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
- 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
- A01N37/44—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 at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids
- A01N37/46—N-acyl derivatives
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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
- A01N43/36—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings
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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
- A01N43/74—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 one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,3
- A01N43/76—1,3-Oxazoles; Hydrogenated 1,3-oxazoles
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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
- A01N51/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds having the sequences of atoms O—N—S, X—O—S, N—N—S, O—N—N or O-halogen, regardless of the number of bonds each atom has and with no atom of these sequences forming part of a heterocyclic ring
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- Dentistry (AREA)
- Engineering & Computer Science (AREA)
- Plant Pathology (AREA)
- Pest Control & Pesticides (AREA)
- Wood Science & Technology (AREA)
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Abstract
The invention discloses for protecting safener and the application of cereal crops, the safener includes that structural formula is (I) and its synthetic as intermediate.Safener of the present invention, it is effectively increased the application range of such compound, herbicide is applied again after cereal crops use the safener, severe extreme weather can effectively be prevented, especially prominent fine day gas, the normal time become a fine day or prolonged rainfall uses safe influence to herbicide, cereal crops root system can be effectively protected in safener, prevent herbicide from impacting with the decline that field rainwater sinks with water level to cereal crops root system, effectively play a protective role to cereal crops, reduce influence of the herbicide to cereal crops, convenient for the raising of weeding preventive effect.
Description
Technical field
The present invention relates to control of weeds technical fields, especially for protecting safener and the application of cereal crops.
Background technique
Herbicide, which refers to, can make weeds that withered medicament, also known as herbicide thoroughly or selectively occur, eliminating or
Inhibit a substance of plant growth.
Sodium chlorate therein, borax, arsenate, trichloroacetic acid play the role of for any kind of plant it is withered,
Effect is influenced by herbicide, plant and three factor of environmental condition.There are following several types by effect herbicide, answers " because grass is made
Preferably " select.
(1) selective herbicide: such herbicide uses in range of doses, and can selectively kill certain has
Evil plant, and crop safety.It is proper use of in crop field, it can achieve the purpose for only killing weeds without injuring crop.
(2) steriland herbicide: such herbicide kills effect to all plants, such as Kirchhoff integral, penta sodium pentachlorophenate, grass
Sweet phosphine etc..Such herbicide is limited to fallow field, weed eradication idly.
(3) contact killing type herbicide: such herbicide only injures the position that plant touches medicament, to being not exposed to medicament
Position without influence, such as Kirchhoff integral, propanil, nitrofen.
(4) inner sucting conduction type weeding-type: the effective component of such herbicide can be absorbed by the root, stem, leaf of plant, and rapidly
It is transmitted to complete stool, to kill noxious plant, such as glyphosate, cover grass energy, surely kills ether.
Therefore in use, the characteristic because of medicament or the reason using operation to crop more or less all can caused by one
Fixed phytotoxicity discloses a kind of fenclorim seed dressing collaboration pretilachlor application No. is CN201510888282.8 and prevents and kill off dry direct-seeding rice
Field weed rice technology.It is characterized in that cooperateing with pretilachlor chemical control dry seeded rice field Weedy Rice, seed dressing using fenclorim seed dressing
The optium concentration of fenclorim is 960mg/L in agent, and naturally dry is directly broadcasted sowing after seed dressing, after planting keeps field wet, 2 ~ 3 days
Field soil processing is carried out with the pretilachlor of 675 ~ 900 grams/ha of dosage afterwards, field keeps a thin layer of water layer after application,
With maximum performance drug effect, which reaches 80% or more to the preventive effect of dry seeded rice field Weedy Rice.With dry seeded rice field area
It is increasing, Weedy Rice occurs increasingly severe, and there is presently no the effective chemistry for preventing and kill off dry seeded rice field Weedy Rice is anti-
Control technology, therefore, this technology are prevented and kill off to dry seeded rice field Weedy Rice with specific characteristic, feasibility and economic benefit,
Application potential is huge.
Fenclorim, mefenpyrdiethyl etc. are very widely used as herbicides and safeners, but effect is ideal not to the utmost, often plus
Enter application herbicide after these safeners still can cause different degrees of influence to cereal crops, be used alone when herbicide or
Weeding is used in conjunction with safener, herbicide such as Acetochlor, Acetochlor, which mix (Acetochlor mixture) with other closure herbicides, to be made
With etc., cereal crops early period is in most cases not in phytotoxicity using closing herbicide, but encounters extreme weather, such as
Long-time rainfall is dashed forward fine day gas, or to become a fine day the prominent rainy day for a long time fine etc., is very easy to phytotoxicity occur, main reason is that: when long
Between rainfall, Acetochlor, Acetochlor mixture can with rainwater sink and field water level decline, during sinking herbicide contact grain
Food crop root system causes the injury of cereal crops root system to influence crop normal growth, and the Acetochlor effective ingredient of soil surface subtracts
Few, herbicidal effect is undesirable.
Summary of the invention
The object of the present invention is to overcome the above-mentioned deficiency of the prior art, and provide a kind of highly effective and safe, application conveniently with
In the safener application of protection cereal crops.
The technical scheme is that for protecting the safener of cereal crops, the safener includes that structural formula is (I)
Compound and its synthetic as intermediate.
Further, the A in the compound, B group are respectively hydrogen-based, methyl, ethyl, carboxyl, alkyl, propinyl, first
Oxygroup, amino, acetenyl or halogen substituent.
Further, M includes Na, K, Zn, Mg, Ni, Fe, As, halogen or organic group, n 1-3 in the compound；It closes
It at object is one of thiram, ziram, fervam, Diram, asomate and Sankel or a variety of；
Preferably, the M is Na.
For protecting the safener application of cereal crops, the safener is made preparation and is directly used in seed pelleting, seed dressing
Or seed soaking, or combined application is formed with seed dressing.
Further, the safe agent formulation is that seed treatment, seed coat agent, seed soaking agent, suspension seed-coating agent, seed treatment can
Dispersion powder, seed treatment microcapsule suspending agent, seed treatment suspending agent, seed treatment microcapsule suspending agent-suspending agent, seed treatment
Emulsion, suspension seed dressing.
Further, the seed dressing is selected from one of insecticide, fungicide, growth regulator or a variety of；
Preferably, seed dressing be Diacloden, imidacloprid, dinotefuran, clothianidin, pymetrozine, carbosulfan, chlorine worm benzamide,
Bromine cyanogen insect amide, Fipronil, Metalaxyl-M, fludioxonil, carbendazim, pentachloronitrobenzene, triazolone, carbofuran, Tebuconazole, first frost
One of spirit, auxin are a variety of.
Further, when the safener is used to be coated, dress seed or soak seed, effective ingredient consumption 1-2000g/100kg
Seed.
Further, it is 15-100g/100kg seed that the safener, which is used for dosage when being coated, dress seed or soaking seed,.
Further, it is 25-60g/100kg seed that the safener, which is used for dosage when being coated, dress seed or soaking seed,.Work as safety
When the dosage of agent is excessive, to seed, there are certain inhibiting effect, unfavorable germination growths, when the usage amount of safener is very little
When, it is unfavorable for protecting seed, using still damaging cereal crops after herbicide.
Further, the safener is dressed seed after directly carrying out seed dressing or presprouting of seeds to seed；The seed is grain work
Species attached bag includes rice, corn, sorghum, wheat；Safener uses diluted using preceding, and dilution is tap water, pond water
Or the well water after standing, dosage are 1-3kg/100kg seed.
The present invention has a characteristic that
1, safener of the present invention is effectively increased the application range of such compound, after cereal crops use the safener
Herbicide is applied again, can effectively prevent severe extreme weather, and especially prominent fine day gas, normal time become a fine day or drops for a long time
Rain uses safe influence to herbicide, and safener can be effectively protected cereal crops root system, prevent herbicide with field
Rainwater sinks and the decline of water level impacts cereal crops root system, effectively plays a protective role to cereal crops, reduces
Influence of the herbicide to cereal crops, convenient for the raising of weeding preventive effect.
2, safener using seed dressing, seed soaking and coating etc. modes be applied to cereal crops seed on, can be used alone or
Person combines seed dressing to apply together, is conducive to the absorption of seed after processing, and the increase of application mode is used convenient for safener, is convenient for
Simple operations and safe handling.
3, safener, which can according to need, is made different dosage forms, and safener can be made to form one layer of protection in the surface of the seed
Film is further absorbed and utilized safener convenient for seed, convenient for reducing the degradation rate of safener effective component convenient for peace
The effective use of full agent drug effect, cereal crops are after safener is handled, then apply herbicide and effectively increase making for herbicide
With safety, while contact of the weeds in field with safener is effectively reduced, avoids protective effect of the safener to weeds,
It is further effectively controlled weeds to cause harm to cereal crops, convenient for improving the control efficiency to weeds.
4, safener can carry out after seed dressing or vernalization before presprouting of seeds using various ways to dressing seed
Seed dressing convenient for the safe handling of safener, while being convenient for the saving of cost, reduces the influence to environment.
5, think agriculturally can only be used as intermediate, disinfection and sterilize this technology the present invention overcomes the prior art
Prejudice, safener sets out for the protective effect of weeds and applied to the safety on cereal crops, while the use to safener
Method is improved, and is significantly improved herbicide to control of weeds effect, is reduced herbicide dosage, at the same protect cereal crops from
Herbicide damage is a kind of control of weeds technology efficiently, environmentally friendly, safe.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Detailed description of the invention
Fig. 1-is that safener of the present invention and herbicide seed dressing use operational flowchart；
Fig. 2-is 20 days herbicidal effect comparison diagrams after 1 first time of embodiment herbicide medicine；
Fig. 3-is 25 days herbicidal effect comparison diagrams after second of the herbicide medicine of embodiment 1.
Specific embodiment
As shown in Figure 1-3, with high safety dose is prevented and kill off crop weeds in field application test with seed dressing Synergistic herbicidal:
Test site: field experiment rainwater when in June, 2018 is in Hunan Yueyang Xiangyin County white clay lake progress, test is more,
Prominent fine day gas is common simultaneously.
Material to be tested:
Rice varieties: long-grained nonglutinous rice (Shanyou 63)；
Upland rice variety: upland rice No. 12；
Corn variety: Hua Nong 887
Medicament: the dosage of every 100kg seed
The dosage of 98% Sodium Dimethyldithiocarbamate is the Jinan 25-60g(Qi Yunjian Chemical Co., Ltd.)
The dosage of 98% thiram is the Jinan 25-60g(Qi Yunjian Chemical Co., Ltd.)
The dosage of 25% Diacloden Metalaxyl-M fludioxonil seed dressing (22.2+1.7+1.1) is 200-400g
60-120g/ mus of 30% pretilachlor missible oil (Su Ke agrochemical Co., Ltd, Jiangsu Province)
69 50-80 milliliters/mus of grams per liter fenoxapropPethyl
69 grams per liter 50-80 milliliters/mus of fenoxapropPethyl aqueous emulsion (Syngenta)
40% 250-300g/ mus of isopropyl grass atrazine missible oil (20+20)
30% sweeps Fluorene spy (Changde agrochemical)
Test instrument: liquid-transfering gun, stirring rod, beaker, sprayer, planter, electronic scale etc..
Directly or preparation can be made for seed treatment in safener, preparation type include seed treatment, seed coat agent,
Seed soaking agent, suspension seed-coating agent, seed treatment dispersible pulvis, seed treatment microcapsule suspending agent, seed treatment suspending agent, at seed
Manage microcapsule suspending agent-suspending agent, seed treatment emulsion, suspension seed dressing.
Seed dressing is selected from one of insecticide, fungicide, growth regulator or a variety of；Preferably, seed dressing is thiophene worm
Piperazine, imidacloprid, dinotefuran, clothianidin, pymetrozine, carbosulfan, chlorine worm benzamide, bromine cyanogen insect amide, Fipronil, smart first frost
One of spirit, fludioxonil, carbendazim, pentachloronitrobenzene, triazolone, carbofuran, Tebuconazole, metalaxyl, auxin etc. are more
Kind, it can be according to specifically needing into selection.
Embodiment one
Safener is Sodium Dimethyldithiocarbamate microcapsule suspending agent, safener and seed dressing combined application, to rice weeding safety room after seed dressing
Outer test:
Field processing, chooses the field of the smooth fertile soil in plot, and leveling field is divided into the uniform cell of area, sets around field
Vertical isolation strip, is numbered for use each cell.
Rice varieties Shanyou 63 is carried out vernalization by seed treatment, and every 100kg seed is set using 98% Sodium Dimethyldithiocarbamate dose gradient
5,10,20,40,80,160,320g are calculated as, the dosage of 25% Diacloden Metalaxyl-M fludioxonil seed dressing is 300g, respectively
It is mixed with the water of a series of Sodium Dimethyldithiocarbamate of various concentrations and seed dressing addition 2kg, when mixing first uses safener Sodium Dimethyldithiocarbamate
Water dilutes completely, then stirring in dilution is added in seed dressing and sufficiently, is then stirred with the seed after vernalization, before stirring first
Seed after vernalization is spread out to air-dry to the surface of the seed and there cannot be bright water, it, will when seed dressing as other seed dressing application methods
Seed mixes well, and keeps Sodium Dimethyldithiocarbamate fully wrapped around to Rice Seed Surface, Sodium Dimethyldithiocarbamate, seed dressing and seed are stood after mixing evenly
2-3 hours, naturally dry after seed dressing fully absorbed medical fluid to seed.
Then it is used for each cell according to the dosage for applying 4kg seed per acre, each concentration processing is repeated 3 times；Using people
Work is broadcasted sowing, and after planting field is not poured water, and keeps each cell ground moistening, after planting takes " envelope one is killed " to remove paddy field
Careless mode after rice founds needle, applies 100g/ mus of 30% pretilachlor of first time herbicide in 3-5 days, spraying treatment is carried out, after application
The water layer or wet for keeping field a thin layer of, with the maximum drug effect for playing pretilachlor medicament；To three leaf one of rice after 20 days
When the heart, second of herbicide is sprayed, 69 grams per liter fenoxapropPethyl aqueous emulsion, 50 milliliter/mu, investigation in 15 days is each small after application
The fresh weight of area plant.
Cell setting: test sets 10 processing, and every processing is repeated 3 times.Plot area is 20 square metres, random district's groups row
Column.
Application method and time: first then Sodium Dimethyldithiocarbamate microcapsule suspending agent dilution is added into seed dressing completely through diluting
Agent is dressed seed again after being sufficiently stirred, and dilution is the well water after tap water, pond water or standing, is broadcast live after natural drying
Field is normally sowed, such as artificial broadcast, mechanical program request, and the present embodiment after planting keeps field wet using machine program request,
First time herbicide, soil spraying treatment can also be sowed if dressing seed after vernalization on side by spraying after sowing 3-5 days
Weed sprays agent simultaneously, is convenient for save trouble and labor, and the saving of cost reduces the influence to environment；Spraying second after sowing 20 days
Highy potent herbicide relatively good in dryland paddy, can also be used for paddy field by herbicide by 30kg/ mus of water consumption, such as: smart oxazole standing grain
Pretilachlor, the clodinafop-propargyl of careless high-content clever, that fenclorim is not added.
Investigation method and time: 1. 20 days investigation strain preventive effects and range estimation upgrowth situation after first time medication；2. second of medicine
25 days investigation plant fresh weights afterwards.Every cell looks at 4 points, and every is looked into 0.11 square metre.
Table one, experimental design
Table two, 25 days after first time medication, rice inhibiting rate test result
Table 3 25 days after second of medication, investigates plant fresh weight test result
By the above test result it is found that outdoor test discovery direct sowing rice field rice paddy seed is carried out with safener Sodium Dimethyldithiocarbamate and seed dressing
Seed dressing, is sowed after natural drying, in 100g/ mus of after planting 3 days application first times 30% pretilachlor of herbicide, is investigated within 20 days after medicine,
Visual observations, in addition to the plant in control group 1 has part deformity, other are showed no obvious deformity discoloration, and different Sodium Dimethyldithiocarbamates use
Dosage is to the protective effect of rice there are larger difference, and Sodium Dimethyldithiocarbamate dosage is within the scope of 5~40g/100kg, with the liter of concentration
Height, the protective effect to rice from pretilachlor phytotoxicity constantly enhance, when Sodium Dimethyldithiocarbamate dosage is higher than 40g/100kg, with
The raising of concentration, the protective effect to rice from pretilachlor phytotoxicity constantly weaken, and explanation is not that Sodium Dimethyldithiocarbamate dosage is more
It is stronger to the protective effect of rice.Therefore Sodium Dimethyldithiocarbamate seed dressing dosage is most strong to the protective effect of rice in 40g/100kg, and
There is apparent key in control 1,30% or more inhibiting effect, processing 7 compared with comparison medicament 2 to the inhibiting rate difference of rice not
Greatly, thus safener can effectively be played to rice and good protective effect；25 days after second of medicine, 4 plant fresh weights are handled
Amount most weight is 215g, and compared to the plant fresh weight 63g of blank district, the use of safener can effectively reduce herbicide rice
It influences, while effectively reducing influence of the weeds to rice, effectively raise protection of the safener to rice, improve and remove
The safe handling of careless agent, convenient for the raising of herbicide prevention effect.
When applying first time herbicide in after planting 1-2 days, the pretilachlor medicament of field recommended dose is applied to rice
Generate 20% or so inhibiting effect.
When applying first time herbicide in after planting 3-5 days, relative comparison 1-3 is the most prominent to the protective effect of rice
Out.
The above test result totally obtains, is dressed seed in direct sowing rice field by Sodium Dimethyldithiocarbamate and seed dressing, is broadcast again after natural drying
Kind, pretilachlor under 100g/ mu of 30% pretilachlor (60~120 g/ mus of field recommended dose) dosage can effective management of weeds without
Rice is damaged.It can be seen that Sodium Dimethyldithiocarbamate dosage to the protective effect of rice from a series of Sodium Dimethyldithiocarbamate administration dosages to exist
It is most strong to the protective effect of rice when 40g/100kg.For broadcasting rear administration time it can be found that in after planting 1-2 days application fields
Between recommended dose pretilachlor medicament to rice generate 20% or so inhibiting effect, and after broadcasting 3~5 days be administered, to rice
It is safe.Therefore, it in dry direct-seeding rice Tanaka, is sowed after being dried with 40g/100kg Sodium Dimethyldithiocarbamate with seed dressing seed dressing, sowing 3~5
After it using pretilachlor medicament can effective management of weeds, and to rice safety.
As illustrated in figs. 2-3, according to above-mentioned test result it is found that using the structural formula for the compound of (I) and its conduct
The synthetic of intermediate handles crop seed, can effectively improve herbicide using safe, improve the protection to crop
Effect, while can be improved the lasting effect of herbicide herbicidal effect.
Embodiment two
Safener is Sodium Dimethyldithiocarbamate suspension seed-coating agent, safener and seed dressing combined application, prevents and kill off direct sowing rice weed with herbicide
Field test results:
Cell setting: test sets 7 processing, and every processing is repeated 3 times.Plot area is 20 square metres, random district's groups arrangement.
Application method: safener Sodium Dimethyldithiocarbamate suspension seed-coating agent is dressed seed with seed dressing, and safener Sodium Dimethyldithiocarbamate amount of application is
60g/100kg, the dosage of 25% Diacloden Metalaxyl-M fludioxonil of seed dressing are 300g, and control group does not use safener, the
Herbicide uses 30% using 30% pretilachlor EC60,80,100,120,140g/ mus of spraying five processing groups, comparison medicament
80g/ mus of Fluorene spy are swept, second of herbicide uses 30kg/ mus of 69 grams per liter fenoxapropPethyl.
Safener: 1, being first dissolved in the water of 2kg/100kg seed weight in proportion and dilute by seed dressing method, and dilution is complete
Seed dressing is added in dilution again afterwards and is stirred evenly, pours into the seed of vernalization, carries out after natural drying after mixing evenly
It normally sows in live streaming field；2 or not vernalization seed dressing, safener and seed dressing is straight after mixing evenly in the way of in method 1
Tap into capable seed dressing, after carry out seed soaking again.
It is broadcast live field after natural drying normally to sow, after planting keeps field wet, is sprayed first after sowing 3-5 days
Secondary 30% pretilachlor of herbicide, soil spraying treatment, using soil, spraying, pesticide-clay mixture or the modes such as cauline leaf is spraying are applied after sowing 20 days
30kg/ mus of 69 grams per liter fenoxapropPethyl is used with second of herbicide.
Investigation method and time: 1. 15 days investigation strain preventive effects, growth inhibition ratio and range estimation plant strain growth after first time medication
Situation；2. 25 days investigation visual observations plant strain growth situations after second of medicine.Every cell looks at 4 points, and every is looked into 0.11 square metre.
Table four, plan design
Table five, 15 days strain control efficiency investigation results after first time herbicide medicine
According to above-mentioned test result it is found that sprinkling 30% pretilachlor of the first herbicide 100g/ mu was in paddy field in after planting 3-5 days
Weeds sealing effect it is best, each cell plant strain growth is normal, especially to simultaneously known to semen euphorbiae preventive effect it is especially prominent
It is 98.42%, better than comparison medicament to the control efficiency of weeds, the rice inhibiting rate 0.34% for adding the area of safener processing is obvious
Lower than comparison medicament to the growth inhibition 18.50% of rice, while apparent phytotoxicity is not found during testing, thus, it can be known that peace
Full agent can be good at protecting rice, effectively raises the safety of weeding, observes each cell within 25 days after second of medicine
Paddy growth is normal.
Embodiment three
Safener is Sodium Dimethyldithiocarbamate seed treatment suspending agent, safener and seed dressing combined application, prevents and kill off direct sowing rice field with herbicide
The field test results of weeds
Cell setting: test sets 7 processing, and every processing is repeated 3 times.Plot area is 20 square metres, random district's groups arrangement.
Application method: Sodium Dimethyldithiocarbamate is dressed seed with seed dressing, and safener Sodium Dimethyldithiocarbamate amount of application is 40g/100kg, seed dressing
The dosage of 25% Diacloden Metalaxyl-M fludioxonil is 300g, and control group does not use safener, and first time herbicide uses
30% EC100g/ mus of pretilachlor is spraying, and second of herbicide uses 69 grams per liter fenoxapropPethyls 20,35,50,65,80kg/ mus
Five processing groups, comparison medicament use 69 35kg/ mus of grams per liter fenoxapropPethyl aqueous emulsions.
Seed dressing method: 1, first the water of safener in proportion 2kg/100kg seed weight is diluted, will be mixed again after dilution
Kind agent, which is added in dilution, to stir evenly, and is poured into the seed of vernalization after mixing evenly, is being broadcast live field after natural drying just
Often sowing；
2 or not vernalization seed dressing, safener and seed dressing are directly dressed seed after mixing evenly in the way of in method 1,
Carry out seed soaking again afterwards.
Using artificial broadcast, after planting keep field wet, first time herbicide 30% the third is careless by spraying after sowing 3-5 days
100g/ mus of amine, soil spraying treatment, spraying second of 69 grams per liter fenoxapropPethyl of herbicide, water consumption after sowing 20 days
30kg/ mus.
Investigation method and time: it 1. investigates within 15 days after first time medicine, estimates plant growth condition；2. 25 days after second of medicine
Investigate weeds fresh weight preventive effect.Every cell looks at 4 points, and every is looked into 0.11 square metre.
Table six, plan design
15 days visual observations after first time herbicide medicine, while being compared with clear water control group, rice plant has no apparent inhibition
Effect, growth is normal, and weeds are less in each cell, prominent using closing herbicidal effect of 30% pretilachlor to weeds, uses peace
The cell of full agent compared to the control group, 30% control efficiency is at least higher by the control efficiency of weeds.
Table seven, 25 days weeds fresh weight control efficiency investigation results after second of herbicide medicine
By the above test result it is found that 25 days after second of herbicide medicine protrude the control efficiency processing 3 of weeds the most, especially
It is the control efficiency 97.28% of semen euphorbiae, hence it is evident that better than the control group for not using safener seed dressing.
In summary test result is taken and dresses seed in advance to seed, effectively raises herbicide and prevents weeds
Effect is controlled, while herbicide can also be reduced to the inhibiting effect of rice, effectively raises the protective effect to rice, while gram
The compound and its technology prejudice for being used for herbicides and safeners as the synthetic of intermediate that structural formula is (I) have been taken, in addition should
Class safener has the effect of certain sterilization, and rice can be significantly improved after seed dressing to the preventive effect of pest and disease damage, further
The protection improved to paddy growth.
Example IV safener is Sodium Dimethyldithiocarbamate suspending agent, safener and seed dressing combined application, prevents and kill off drought with herbicide
Direct-seeding Rice weeds in field test result
Upland rice variety: upland rice No. 12.
Cell setting: test sets 7 processing, and every processing is repeated 3 times.Plot area is 20 square metres, random district's groups arrangement.
Application method: Sodium Dimethyldithiocarbamate is dressed seed with seed dressing, and safener Sodium Dimethyldithiocarbamate amount of application is 25g/100kg, seed dressing
The dosage of 25% Diacloden Metalaxyl-M fludioxonil is 300g, and control group does not use safener, and first time herbicide uses
30% EC100g/ mus of pretilachlor is spraying, and second of herbicide uses 69 grams per liter fenoxapropPethyls 20,35,50,65,80kg/ mus
Five processing groups, comparison medicament use 69 35kg/ mus of grams per liter fenoxapropPethyl aqueous emulsions.
Seed dressing method: 1, first the water of safener in proportion 2kg/100kg seed weight is diluted, will be mixed again after dilution
Kind agent, which is added in dilution, to stir evenly, and is poured into the seed of vernalization after mixing evenly, is being broadcast live field after natural drying just
Often sowing.
2 or not vernalization seed dressing, safener and seed dressing are directly carried out after mixing evenly in the way of in method 1
Seed dressing, after carry out seed soaking again.
3, it after first safener can also being diluted with water, first directly dresses seed with seed, to seed all by safener
After dilution absorbs, then seed dressing dilution is sufficiently stirred with the seed of safener again, then carries out at seed soaking
Reason, the advantages of which, are that seed dressing all wraps up safener, the safener after seed soaking in seed when retaining
Between it is longer, be more conducive to protecting seed, prevent or reduce herbicide on upland rice influence.
Using artificial broadcast or planter program request, after planting keep field wet, it is after planting spraying simultaneously to remove for the first time
Careless 100g/ mus of 30% pretilachlor of agent, soil spraying treatment, spraying second of 69 grams per liter essence oxazole dogstail of herbicide after sowing 20 days
Spirit, 30kg/ mus of water consumption.
Investigation method and time: 1. 15 days range estimation upland rice growing states after first time medicine；2. 25 days after second of medicine investigate
Weeds fresh weight preventive effect.Every cell looks at 4 points, and every is looked into 0.11 square metre.
Table eight, plan design
15 days visual observations after first time herbicide medicine, while being compared with clear water control group, upland rice plant has no apparent inhibition
Effect, growth is normal, and weeds are less in each cell, prominent using closing herbicidal effect of 30% pretilachlor to weeds, uses peace
Each cell of full agent compared to the control group, 25% control efficiency is at least higher by the control efficiency of weeds.
Table nine, 15 days weeds fresh weight control efficiency investigation results after second of herbicide medicine
By above-mentioned test result it is found that carrying out pre-treatment to seed using 25g/100kg Sodium Dimethyldithiocarbamate, herbicide is applied after seed dressing again
Influence of the herbicide to upland rice plant strain growth greatly reduces in the safety in utilization for effectively increasing herbicide, while effectively
Reduce contact of the weeds in field with safener, avoid protective effect of the safener to weeds, further effective control
Weeds cause harm to upland rice, convenient for improving the control efficiency to weeds.
Embodiment five
Safener is thiram seed treatment, with the field test results of herbicide Control Weeds in Maize Field:
Corn variety: Hua Nong 887.
Cell setting: test sets 7 processing, and every processing is repeated 3 times.Plot area is 20 square metres, random district's groups arrangement.
Application method and time: it will dress seed after the dilution of safener thiram, safener thiram amount of application is 45g/
100kg, control group do not use safener, and first time herbicide is spraying using EC100g/ mus of 30% pretilachlor, second of herbicide
Using 40% 250-300g/ mus of isopropyl grass green bristlegrass.
Seed dressing method: 1, using not vernalization dress seed, first by safener in proportion 2kg/100kg seed weight water carry out it is dilute
It releases, directly dresses seed after mixing evenly, normally sowed after natural drying, take artificial dibbling or mechanical program request；
2, it after first safener can also being diluted with water, directly dresses seed, after neutron absorption safener, dries processing, plant
The advantages of sublist face cannot have bright water, then carry out seed soaking, which is that seed dressing all wraps up safener, leaching
Retention time of the safener in seed after kind is longer, is more conducive to protecting seed, prevents or reduce herbicide
Corn is influenced.
Using artificial broadcast or planter program request, after planting keep field wet, it is after planting spraying simultaneously to remove for the first time
Careless 100g/ mus of 30% pretilachlor of agent, soil spraying treatment, seeding corn 1-3 leaf phase spraying second of herbicide 40% isopropyl grass
Green bristlegrass.
Investigation method and time: 1. inhibiting rate of the range estimation investigation in 15 days to corn after first time medicine；2. 25 after second of medicine
Its investigation weeds fresh weight preventive effect.Every cell looks at 4 points, and every is looked into 0.11 square metre.
Table ten, plan design
15 days visual observations after first time herbicide medicine, while being compared with clear water control group, plant has no apparent inhibition
Effect, growth is normal, and weeds are less in each cell, prominent using closing herbicidal effect of 30% pretilachlor to weeds, relatively right
According to group to be applicable in safener, 20% control efficiency is at least higher by the control efficiency of weeds.
Table 11,25 days weeds fresh weight control efficiency investigation results after second of herbicide medicine
By above-mentioned test result it is found that carrying out seed dressing pre-treatment to seed using 45g/100kg thiram seed treatment, seed dressing
It applies the safety in utilization that herbicide effectively increases herbicide again afterwards, greatly reduces what herbicide grew plant
Influence, there is blade and whitens situation in control group after application, other each cells have no apparent phytotoxicity, thus safener in advance
Application effectively raises the protection to crop, while effectively reducing contact of the weeds in field with safener, avoids peace
Full protective effect of the agent to weeds, is further effectively controlled harm of the weeds to corn, convenient for improving the prevention and treatment to weeds
Effect.
Seed dressing in above-described embodiment is not only confined to 25% Diacloden Metalaxyl-M fludioxonil seed dressing,
Other seed dressings, such as 25% Diacloden seed dressing, 20% imidacloprid suspending agent can also be used.
By the above test result it is found that structural formula is for the compound of (I) and its as the synthetic of intermediate, to grain
It the pre-treatments such as dressed seed, soaked seed and be coated during crop-planting, can effectively avoid the later period using herbicide to grain work
Object causes to damage, and can be good at cover crop is not influenced by herbicide, effectively raises herbicide in different temperatures day
Under compression ring border using safe, convenient for the raising of cereal crops yield, while effectively improving such compound and synthetic
The cost that application range effectively raises economic value, while effectively saving reduces the influence to environment.
The preferred embodiments of the invention are described in detail above, it is apparent that the present invention is not limited in above-mentioned embodiment party
Case.Within the scope of the technical concept of the present invention, a variety of equivalent variations, these equivalent changes can be carried out to technical solution of the present invention
Type all belongs to the scope of protection of the present invention.In addition, it is necessary to which explanation, each described in above-mentioned specific embodiment
Technical characteristic separately can be independently combined, as long as it is within the scope of the technical concept of the present invention.
Claims (10)
1. for protecting the safener of cereal crops, it is characterised in that: the safener includes that structural formula is (I)
Compound and its synthetic as intermediate.
2. according to claim 1 for protecting the safener of cereal crops, it is characterised in that: A, B in the compound
Group is respectively hydrogen-based, methyl, ethyl, carboxyl, alkyl, propinyl, methoxyl group, amino, acetenyl or halogen substituent.
3. the safener for being used to protect cereal crops of weeding according to claim 1, it is characterised in that: the chemical combination
M includes Na, K, Zn, Mg, Ni, Fe, As, halogen or organic group, n 1-3 in object；Synthetic is thiram, ziram, Fu Mei
One of iron, Diram, asomate and Sankel are a variety of；
Preferably, the M is Na.
4. according to claim 1-3 for protecting the safener application of cereal crops, it is characterised in that: described
Safener is made preparation and is directly used in seed pelleting, seed dressing or seed soaking, or forms combined application with seed dressing.
5. according to claim 4 for protecting the safener application of cereal crops, it is characterised in that: the safener system
Agent is seed treatment, seed coat agent, seed soaking agent, suspension seed-coating agent, seed treatment dispersible pulvis, seed treatment microcapsule suspension
Agent, seed treatment suspending agent, seed treatment microcapsule suspending agent-suspending agent, seed treatment emulsion, suspension seed dressing.
6. according to claim 4 for protecting the safener application of cereal crops, it is characterised in that: the seed dressing choosing
From one of insecticide, fungicide, growth regulator or a variety of；
Preferably, seed dressing is Diacloden, imidacloprid, dinotefuran, clothianidin, pymetrozine, carbosulfan, chlorine worm benzoyl
Amine, bromine cyanogen insect amide, Fipronil, Metalaxyl-M, fludioxonil, carbendazim, pentachloronitrobenzene, triazolone, carbofuran, Tebuconazole,
One of metalaxyl, auxin are a variety of.
7. according to claim 4 for protecting the safener application of cereal crops, it is characterised in that: the safener is used
When coating, seed dressing or seed soaking, effective ingredient consumption is 1-2000g/100kg seed.
8. according to claim 7 for protecting the safener application of cereal crops, it is characterised in that: the safener is used
Dosage when coating, seed dressing or seed soaking is 15-100g/100kg seed.
9. according to claim 8 for protecting the safener application of cereal crops, it is characterised in that: the safener is used
Dosage when coating, seed dressing or seed soaking is 25-60g/100kg seed.
10. according to claim 9 for protecting the safener application of cereal crops, it is characterised in that: the safener
It dresses seed after directly carrying out seed dressing or presprouting of seeds to seed；The seed be cereal crops seed include rice, corn, sorghum,
Wheat；Safener uses diluted using preceding, and dilution is the well water after tap water, pond water or standing, dosage 1-
3kg/100kg seed.
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