CN106665207A - Method for preventing damping-off in seedling stage of herba erigerontis float breeding - Google Patents

Method for preventing damping-off in seedling stage of herba erigerontis float breeding Download PDF

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CN106665207A
CN106665207A CN201611200798.XA CN201611200798A CN106665207A CN 106665207 A CN106665207 A CN 106665207A CN 201611200798 A CN201611200798 A CN 201611200798A CN 106665207 A CN106665207 A CN 106665207A
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seedling
floating
sowing
sterilization
growth greenhouse
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CN106665207B (en
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王美玲
罗桂昌
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Xuanwei City Longjin Biotechnology LLC
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Xuanwei City Longjin Biotechnology LLC
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00—Protecting plants
    • 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
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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    • 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
    • A01N37/34—Nitriles
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    • 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
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    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
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    • A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
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    • A01N47/18—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing a —O—CO—N< group, or a thio analogue thereof, directly attached to a heterocyclic or cycloaliphatic ring
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    • A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
    • A01N47/34—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the groups, e.g. biuret; Thio analogues thereof; Urea-aldehyde condensation products
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    • 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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Abstract

The invention discloses a method for preventing damping-off in the seedling stage of herba erigerontis float breeding. The method includes the step of seedling stage management including spraying of seedling stage fungicides, wherein spraying of the seedling stage fungicides includes the specific substep that after seedling shed seeds germinates and enters a two-true-leaf stage, the fungicides are sprayed to herba erigerontis seedlings regularly in turn, which means the fungicides for preventing damping-off in the seedling stage are used alternately. The method has the advantages that mainly based on the characteristics that herba erigerontis plants are weak in the seedling stage and the activity of pathogenic bacteria is influenced by environment factors, disease resistance of the herba erigerontis seedlings is improved, the pathogenic bacteria are killed by means of chemicals, and a survival environment not suitable for the pathogenic bacteria is created by means of the fungicides, so that the method is capable of preventing damping-off in the seedling stage, and the effective rate is as high as 90% or above.

Description

A kind of method that prevention Herba Erigerontiss floating seedlings seedling sudden fall ill occurs
Technical field
The present invention relates to Chinese crude drug disease control field, and in particular to one kind prevention Herba Erigerontiss floating seedlings seedling sudden fall ill occurs Method.
Background technology
At present Herba Erigerontiss industry is through long-term development, the industrial chain that either link such as plantation or processing sell is related to Tend to perfect, Herba Erigerontiss belong to one of Yunnan genuine medicinal materials, be the good medicine for treating cardiovascular and cerebrovascular vessel, be that Yunnan medicinal industry is sent out Exhibition creates billions of values.By Yunnan Prov Agriculture University Yang Shengchao professor headed by Research Team captured from introduce a fine variety to Various technical barriers in Herba Erigerontiss planting process so that wild Herba Erigerontiss field planting production becomes possibility, for a certainty For plant Herba Erigerontiss peasant household or plantation enterprise bring considerable benefit.Yunnan Biological Valley Breviscapin Pharmaceutical Co., Ltd., The numerous enterprises such as Red River numerous mountains company and Xuanwei City Long John biology company limited, the time limit for planting Herba Erigerontiss is longer, planting technology Through long-term accumulation relative maturity, but also there are some emerging problems to continuously emerge, using floating seedlings land for growing field crops is transplanted The company of mode or individual account for more than the 60% of Herba Erigerontiss cultivated area, and this method has fast seedling, convenient management, emerges The features such as quality is high, seedling is neat, but because nursery stage is longer and nursery equipment is all to recycle for a long time, particularly float Seedlings nursing plate is easily carried various pathogenic bacterias, and seedling stage antibacterial access times and quantity are more, various harmful levels of pathogens Drug resistance short-terms it It is interior to rise, cause disease to occur more serious, wherein Herba Erigerontiss seedling sudden fall ill is most serious, and damping off is to Herba Erigerontiss Belong to natural disposition disease of going out for seedling, short-lived infection death rate of the onset is more than 90%.Damping off is caused to be mainly pythium and epidemic disease The pathogen of mould category, because the thin and weak resistances against diseases of seedling stage Herba Erigerontiss strain body are poor, morbidity medication can only suppress disease diffusion couple sense Sick seedling is almost without therapeutical effect.Using old floating seedling tray, damping off easily occurs in seedling raising process, conventional to Seedling In the case that canopy is managed and protected, sickness rate remains unchanged between 10% -50%, through numerous cultivating technology of erigeron breviscapus person and scientific research personnel Summary of experience and technological innovation all can not all prevent the generation of damping off, and damping off sickness rate is in Herba Erigerontiss floating seedlings seedling stage Sickness rate remains high, can only be by prevention, and the measure of prevention is relatively more but effect is not generally fine.
The content of the invention
It is an object of the invention to provide a kind of method that prevention Herba Erigerontiss floating seedlings seedling sudden fall ill occurs, solves existing There is prevention Herba Erigerontiss floating seedlings seedling stage sickness rate to remain high, the universal bad problem of preventive effect.
To solve above-mentioned technical problem, the present invention is employed the following technical solutions：
A kind of method that prevention Herba Erigerontiss floating seedlings seedling sudden fall ill occurs, including step seedling management, seedling management includes The sprinkling of seedling stage antibacterial, the sprinkling of seedling stage antibacterial is specifically referred to after seedling shed seed is sprouted and enters the little cross phase periodically to lamp Small cup flower seedling is rotated at regular intervals spraying fungicide, and spraying fungicide of rotating at regular intervals refers to that the antibacterial rotation of seedling stage prevention damping off makes With.
In the technical program, the principle of spraying fungicide of rotating at regular intervals is mainly with " An ounce of prevention is worth a pound of cure " phase Same type antibacterial in nursery stage access times preferably no more than twice, in case pathogen produces in a short time higher drug resistance Property, the difficulty of nursery diseases prevention after increasing, the Herba Erigerontiss little cross phase is, through a period of time, two panels to be grown again after germination Spire, and the cotyledon produced with germination is in criss-cross period, the little cross phase of Herba Erigerontiss is specifically in 10~15 after planting My god.
Further technical scheme is that above-mentioned spraying fungicide of rotating at regular intervals to Herba Erigerontiss seedling is specifically referred in sowing In two months after end, as cycle, four antibacterial are sprayed to Herba Erigerontiss seedling altogether with per 15 days.
In the technical program, because the pesticide bought on the market at present mostly is third generation pesticide, it has efficiently low The strong feature of malicious stability, the drug effect of these pesticide typically has week more than one, in sterilization process, Herba Erigerontiss seedling is sprayed Antibacterial can not be accomplished disposably to kill institute pathogen, while the fertility of pathogen is stronger, time length and meeting A large amount of outbursts, it is contemplated that antibacterial lasting effect is short, but effect preferably can not possibly all kill institute's pathogen, therefore from 15 days For a cycle, to Herba Erigerontiss seedling spraying fungicide, so both to can ensure that antibacterial residual on Herba Erigerontiss seedling Stay less, can make again pathogen cannot on Herba Erigerontiss seedling long-term surviving, so as to avoid Herba Erigerontiss seedling from catching an illness.
Further technical scheme is, above-mentioned sowing terminate after to the Herba Erigerontiss seedling sprinkling in a seedling growth greenhouse The time of antibacterial and antibacterial sprinkling is specially：
For the first time the antibacterial of sprinkling is to dislike white phonetic copper bacterium ester 1g by 38% to mix with 80% Mancozeb 4g, is then made into 1000~1200 times of liquid, for the first time the time of sprinkling is the 10th~15 day after sowing terminates；
Second spraying fungicide is, by 15% hymexazol 1g, 72.2% Propamocarb 2g and 75% Bravo 2g mixing, then to be matched somebody with somebody Into 800~1200 times of liquid, the time of second sprinkling is the 25th~30 day after sowing terminates；
Third time spraying fungicide is to mix 99% potassium dihydrogen phosphate, 1000 times of liquid 3g, 40% pyrimethanil 2g and 72% cymoxanil mancozeb 2g Close, be then configured to 800~1000 times of liquid, the time of third time sprinkling is the 40th~45 day after sowing terminates；
4th spraying fungicide is that 43% essence first frost MnZn 2g is configured to into 700~900 times of liquid, and the time of the 4th sprinkling is Sow the 55th~60 day after terminating.
In the technical program, if Herba Erigerontiss seedling sudden fall ill does not prevent not spray, sickness rate more than 95%, and use First frost MnZn, carbendazim, Zhongshengmycin, Bravo, sickness rate gets off all between 30~50% for two months, and nursery stage sprinkling is killed Microbial inoculum four times altogether, is for the first time 15 days or so after sowing terminates, because the time oil lamp flower seed of 15 days is complete Into Budding process, progress into the little cross phase, then after an every time and above minor tick 15 days or so, the 4th time spray is being educated Seedling start after 60 days or so, no longer spray later because plant growing way is more healthy and strong after Herba Erigerontiss seedling 60 days, disease resistance compared with By force, wherein the potassium dihydrogen phosphate of third time sprinkling, mainly improves the resistance of Herba Erigerontiss seedling and supplement phosphorus potassium element, children is made The growth of Seedling is more preferable.
Wherein, times liquid being sprayed to for the first time in the antibacterial of the 4th sprinkling, refers to that the solute that will be obtained after mixing adds Water dilutes, and water is the multiple of times liquid with the mass ratio of solute.
Further technical scheme is, it is above-mentioned in also include that step sows disinfecting, sowing before pre-treatment, sowing With sowing post processing, wherein sowing pre-treatment is referred to and selects annual mid or late January to early Febuary, temperature on average at 7~10 DEG C and day It is the time of seeding and growing seedling when gas is sunny, before seeding and growing seedling, 3~5kg storage phases is first less than the Herba Erigerontiss hair kind of 1 year In being placed in cloth bag, and the seed pappus for beating 18~25 minutes to more than 90% repeatedly with wooden stick comes off, and the seed after beating is used The sieve of 6 mesh is screened, and is then carried out before the blower fan that wind speed is 1.6~3.3m/s or blast is 0.016~0.68N/m2 Selecting crude drugs with winnower, makes physical purity of seed be more than 80%.
In the technical program, seedling raise period is selected in it is annual in mid or late January to early Febuary, using pythium and Vigor is suppressed under Phytophthora pathogen low temperature and characteristic that oil lamp flower seed can normally be sprouted, and seedling enters little to after two weeks Cross phase damping off stage occurred frequently, pathogen vigor major part can effectively prevent the generation of damping off still in suppressed state, And by seed through lint process, the net kind that pathogen is less, germination percentage is higher for carrying can be obtained so as to sprout the children for Seedling resistances against diseases are higher, and the sieve using 6 mesh is screened to seed, can screen out the large granular impurities such as colored base of a fruit holder.
Further technical scheme is, configuration, the floating seedlings disinfected including disinfectant solution before above-mentioned middle sowing The sterilization of disk and the sterilization of seedling growth greenhouse, wherein the configuration of the disinfectant solution is referred to from the chlorine dioxide powder that content is 10%, press 1:10 mass ratio is made into mother solution with water, then mother solution is pressed into 1:50 mass ratio is added to the water and is made into disinfectant solution；
The sterilization of floating seedling tray refers to and draw disinfectant solution to carry out spray disinfectant to floating seedling tray with giant, after sterilization Floating seedling tray pocket must downwards be carried out concentration and pile up, and it is thin to cover black plastic in the floating seedling tray overlying piled up Film, while the surrounding of black plastic film is muffled up well, prevents air circulation, finally piles up 5~7 days；
The sterilization of seedling growth greenhouse is referred to be carried out 5~7 days before seeding operation carrying out disinfection seedling growth greenhouse inwall, and disinfection way is to use high pressure Hydraulic giant draws wall in disinfectant solution spray seedling growth greenhouse, and Herba Erigerontiss seedling growth greenhouse is closed after sterilization is complete carries out fumigation, described smoked The time for steaming sterilization is 1~2 day.
In the technical program, because the pathogenetic pathogen that causes to damping off is mainly the funguses of pythium and Phytophthora, And the funguses of pythium and Phytophthora under appropriate conditions fertility is stronger, diffusion velocity is fast, if sterilizing thoroughly or Sterilizing not in time, seedling short-term will susceptible death, therefore need whole grow seedling link is required for carry out sterilization operation.
Chlorine dioxide belongs to strong oxidizer, meets water reaction and generates hypochlorous acid, and hypochlorous acid has very excellent sterilization effect, And can eliminate most pathogen, while the floating seedling tray after sterilization pocket must downwards be carried out into concentration pile up, and The floating seedling tray overlying piled up covers black plastic film, piles up 5~7 days, and hypochlorous acid can prolong in the wet environment of lucifuge Slow disinfecting time, the pathogen that so further can not thoroughly remain sterilization is killed, and in the process of configuration chlorine dioxide In it may be noted that due to when chlorine dioxide mixes with water misoperation can produce a large amount of chlorine, therefore user of service need to wear protection Mask, need to quickly stir water in one direction in configuration, then chlorine dioxide be added to the water to reduce chlorine along bucket wall The generation of gas.
Further technical scheme is that above-mentioned sowing includes substrate sterilization, the system of thin substrate is matched somebody with somebody and sowed seeds, the base Matter sterilization is referred to the wettable powder 20g of 50% carbendazim, 3% first frost hymexazol water preparation 17ml, 4%+40% essence first frost * MnZns Wettable powder 3g mixes, and the 10kg that adds water converts into a medicinal liquid, then by the mass ratio of a medicinal liquid of addition in every 70kg substrate, Medicinal liquid is stirred with substrate, seedling medium is finally obtained；
The screening of thin substrate is referred to screens seedling medium by the sieve of 2 mesh, obtains thin substrate；
Sow seeds and specifically refer to that seedling medium is filled in floating seedling tray, it is then tight with hand pressure and erase base unnecessary in card Matter, then to the thin substrate of 500g adds 90g oil lamps flower seed and mixes thoroughly again, finally that the thin substrate for being mixed with oil lamp flower seed is uniform Be sprinkling upon on 48 floating seedling trays, and make have 3~6 oil lamp flower seeds in each hole.
In the technical program, seedling medium is screened by the sieve of 2 mesh, screen out perlite and large granular materials are obtained To the less turf slag of particle diameter.
Being stacked for a long time due to substrate can grow pathogenic bacteria, and substrate sterilization can effectively kill pathogen therein, therefore It is also required to substrate disinfection.
Make there are 3~6 oil lamp flower seeds on floating seedling tray in each hole, it is ensured that application rate is not in sowing The larger situation of amount, prevents application rate excessive, emerges closeer, causes plant monomer thin and weak, ventilated with great difficulty not grow disease Opportunistic pathogen causes the poor phenomenon of resistances against diseases.
Further technical scheme is, in above-mentioned step sowing, oil lamp flower seed was needed before with the stirring of thin substrate Quality testing and Seeds Germination Tests are carried out to seed, select physical purity of seed and germination percentage be all higher than 80% oil lamp flower seed.
In the technical program, oil lamp flower seed first passes through Seed germination and selects net kind of the germination percentage more than 80%, selects Physical purity of seed and germination percentage are all higher than 80% seed, not only can guarantee that the germination percentage of seed, while also ensure that seed opposing disease Harmful ability.
Further technical scheme is, at the above-mentioned water sowed after post processing includes sowing seeds in sterilization and seedling growth greenhouse Reason, wherein it is described sow seeds after sterilize and refers to after sowing seeds, the addition 5kg water toward aerosol apparatus, 50% fenaminosulf 16g of addition shakes up it Uniformly it is sprayed at afterwards on the floating seedling tray after sowing terminates, finally the floating seedling tray after sterilization is put in seedling growth greenhouse；
Water process in seedling growth greenhouse refers to that the seedlings nursing plate after sowing seeds moves into the seedling growth greenhouse same day, and addition depth is in seedling growth greenhouse The water of 15cm~20cm, is then added with the mother solution for having configured and is carried out disinfection in water, and makes the matter of chlorine dioxide mother solution and water Amount is than being 1:100.
In the technical program, fenaminosulf is effective to the pythium spp in funguses, black tassel bacteria and various soil-borne diseases, and And fenaminosulf has certain interior suction osmosiss.There is specially good effect to pythium spp and the microbial disease of silk capsule, to some mycosises Evil also effectively, belongs to protectiveness medicament, and to crop growth stimulation is had concurrently.
And oil lamp flower seed is then protected to the addition chlorine dioxide mother solution in seedling growth greenhouse in germination, reduction has from water body Do harm to infecting for bacterium.
Further technical scheme is that above-mentioned seedling management also includes canopy temperature control system, and the canopy temperature control system is referred specifically to The temperature in seedling growth greenhouse is kept at 20~35 DEG C, and relative humidity is less than 90%, while when discovery has Herba Erigerontiss seedling the state of an illness occur When, canopy is cleaned out in time.
In the technical program, when temperature be higher than 35 DEG C, and relative humidity be more than 90% when, pathogenic bacteria is easily grown, to oil lamp Flower seedling has a negative impact, and Herba Erigerontiss cold tolerance is stronger, but when temperature is less than 7 DEG C, then Herba Erigerontiss seedling occurs Because the too low and slow growing phenomenon of temperature.
Further technical scheme is, the length of above-mentioned seedling growth greenhouse has 8 meters, and height has 1.2 meters, a seedling growth greenhouse built with 48 floating seedling trays, a length of 65.5 centimetres of floating seedling tray, wide to have 33.5 centimetres, height has 4.5 centimetres, each floating seedlings There are 325 holes on disk.
Compared with prior art, the invention has the beneficial effects as follows：
Main Basiss Herba Erigerontiss seedling stage strain body of the present invention is thin and weak and pathogenic bacterium vigor by such environmental effects characteristic, by improving The resistances against diseases of Herba Erigerontiss seedling, eliminate pathogen and to build pathogen by using antibacterial unfavorable using antibacterial Living environment, so as to reach a kind of method of the generation of prevention seedling sudden fall ill, effective percentage is up to more than 90%.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, with reference to embodiments, to invent into Row is further described.It should be appreciated that specific embodiment described herein is not used to limit only to explain the present invention The fixed present invention.
Embodiment 1
A kind of method that prevention Herba Erigerontiss floating seedlings seedling sudden fall ill occurs, comprises the steps：
Step 1, sowing pre-treatment：Annual mid or late January is selected, temperature on average is seeding and growing seedling at 10 DEG C and when fine Time, before seeding and growing seedling, first the Herba Erigerontiss hair kind that 5kg storage phases are 1 year is placed in cloth bag, and beaten repeatedly with wooden stick The seed pappus of 18 minutes to 90% comes off, and the seed after beating is screened with the sieve of 6 mesh, is then 3.3m/ in wind speed S or blast are 0.016N/m2Blower fan advance sector-style choosing, make physical purity of seed be more than 80%；
The configuration of step 2-1, disinfectant solution：From the chlorine dioxide powder that content is 10%, by 1:10 mass ratio is made into mother with water Liquid, then presses 1 by mother solution:50 mass ratio is added to the water and is made into disinfectant solution；
The sterilization of step 2-2, floating seedling tray：Draw disinfectant solution to carry out floating seedling tray spray in all directions with giant Sterilization is spilt, the floating seedling tray after sterilization pocket must downwards be carried out concentration and be piled up in cuboid, and the floating piled up is educated Seed plate integrally uses plastic film seal, piles up 7 days；
The sterilization of step 2-3, seedling growth greenhouse：Carry out 5 days before seeding operation carrying out disinfection seedling growth greenhouse inwall, disinfection way is with height Pressure hydraulic giant draws wall in disinfectant solution spray seedling growth greenhouse, is sterilized liquid in seedling growth greenhouse on wall and sprays one time, closes after sterilization is complete Herba Erigerontiss seedling growth greenhouse carries out fumigation, and the time of fumigation is 2 days；
Step 3-1, substrate sterilization：Sowing includes substrate sterilization, the system of thin substrate is matched somebody with somebody and sowed seeds, the substrate sterilize refer to by The wettable powder 20g of 50% carbendazim, the wettable powder 3g of 3% first frost hymexazol water preparation 17ml, 4%+40% essence first frost * MnZns Mixing, and the 10kg that adds water converts into a medicinal liquid, then by the mass ratio of a medicinal liquid is added in every 70kg substrate, by medicinal liquid and substrate Stir, finally obtain seedling medium；
Step 3-2, the system of thin substrate are matched somebody with somebody：Seedling medium is screened by the sieve of 2 mesh, thin substrate is obtained；
Step 3-3, sow seeds：Seedling medium is filled in floating seedling tray, then with hand pressure it is tight and erase it is unnecessary in card Substrate, then to the thin substrate of 500g adds 90g oil lamps flower seed and mixes thoroughly again, finally that the thin substrate for being mixed with oil lamp flower seed is equal Even is sprinkling upon on 48 floating seedling trays, and makes have 3 oil lamp flower seeds in each hole, wherein oil lamp flower seed with thin base Need to carry out quality testing and Seeds Germination Tests to seed before matter stirring, select physical purity of seed and germination percentage is all higher than 80% Oil lamp flower seed；
Step 4-1, sow seeds after sterilize：Sowing post processing is sterilized and the water process in seedling growth greenhouse after including sowing seeds, wherein described spread Sterilize after kind and refer to after sowing seeds, 5kg water is added toward aerosol apparatus, then 50% fenaminosulf 16g is added in water, after shaking up Even is sprayed on the floating seedling tray after sowing terminates, and finally the floating seedling tray after sterilization is put in seedling growth greenhouse；
Water process in step 4-2, seedling growth greenhouse：Seedlings nursing plate after sowing seeds moves into the seedling growth greenhouse same day, adds in seedling growth greenhouse deep The water for 20cm is spent, is then added with the mother solution for having configured and is carried out disinfection in water, and make the quality of chlorine dioxide mother solution and water Than for 1:100；
Step 5, seedling management：The temperature in seedling growth greenhouse is kept at 20~35 DEG C, and relative humidity is less than 90%.Enter in Herba Erigerontiss When entering the little cross phase, and to Herba Erigerontiss spraying fungicide, wherein for the first time the antibacterial of sprinkling is to dislike white phonetic copper bacterium ester 1g by 38% Mix with 80% Mancozeb 4g, be then made into 1000 times of liquid, for the first time the time of sprinkling is the 10th after sowing terminates My god, second spraying fungicide is, by 15% hymexazol 1g, 72.2% Propamocarb 2g and 75% Bravo 2g mixing, then to be matched somebody with somebody Into 1200 times of liquid, the time of second sprinkling is the 30th day after sowing terminates, and third time spraying fungicide is by 99% di(2-ethylhexyl)phosphate 1000 times of liquid 3g of hydrogen potassium, 40% pyrimethanil 2g and 72% cymoxanil mancozeb 2g mixing, is then configured to 800 times of liquid, third time sprinkling Time is the 40th day after sowing terminates, and the 4th spraying fungicide is that 43% essence first frost MnZn 2g is configured to into 900 times of liquid, the Four times sprinkling time be sowing terminate after the 55th day, and when find have Herba Erigerontiss seedling the state of an illness occur when, need in time by It cleans out canopy.
Embodiment 2
A kind of method that prevention Herba Erigerontiss floating seedlings seedling sudden fall ill occurs, comprises the steps：
Step 1, sowing pre-treatment：Select annual early Febuary, temperature on average at 7 DEG C and it is fine when for seeding and growing seedling Time, before seeding and growing seedling, first the Herba Erigerontiss hair kind that 3kg storage phases are 8 months is placed in cloth bag, and is beaten repeatedly with wooden stick The seed pappus of 25 minutes to more than 95% comes off, and the seed after beating is screened with the sieve of 6 mesh, is then in wind speed 1.6m/s or blast are 0.68N/m2Blower fan advance sector-style choosing, make physical purity of seed be more than 85%；
The configuration of step 2-1, disinfectant solution：From the chlorine dioxide powder that content is 10%, by 1:10 mass ratio is made into mother with water Liquid, then presses 1 by mother solution:50 mass ratio is added to the water and is made into disinfectant solution；
The sterilization of step 2-2, floating seedling tray：Draw disinfectant solution to carry out floating seedling tray spray in all directions with giant Sterilization is spilt, the floating seedling tray after sterilization pocket must downwards be carried out concentration and be piled up in square, and the floating piled up is educated Seed plate integrally uses plastic film seal, piles up 5 days；
The sterilization of step 2-3, seedling growth greenhouse：Carry out 7 days before seeding operation carrying out disinfection seedling growth greenhouse inwall, disinfection way is with height Pressure hydraulic giant draws wall in disinfectant solution spray seedling growth greenhouse, is sterilized liquid in seedling growth greenhouse on wall and sprays twice, closes after sterilization is complete Herba Erigerontiss seedling growth greenhouse carries out fumigation, and the time of fumigation is 1 day；
Step 3-1, substrate sterilization：Sowing includes substrate sterilization, the system of thin substrate is matched somebody with somebody and sowed seeds, the substrate sterilize refer to by The wettable powder 20g of 50% carbendazim, the wettable powder 3g of 3% first frost hymexazol water preparation 17ml, 4%+40% essence first frost * MnZns Mixing, and the 10kg that adds water converts into a medicinal liquid, then by the mass ratio of a medicinal liquid is added in every 70kg substrate, by medicinal liquid and substrate Stir, finally obtain seedling medium；
Step 3-2, the system of thin substrate are matched somebody with somebody：Seedling medium is screened by the sieve of 2 mesh, thin substrate is obtained；
Step 3-3, sow seeds：Seedling medium is filled in floating seedling tray, then with hand pressure it is tight and erase it is unnecessary in card Substrate, then to the thin substrate of 500g adds 90g oil lamps flower seed and mixes thoroughly again, finally that the thin substrate for being mixed with oil lamp flower seed is equal Even is sprinkling upon on 48 floating seedling trays, and makes have 6 oil lamp flower seeds in each hole, wherein oil lamp flower seed with thin base Need to carry out quality testing and Seeds Germination Tests to seed before matter stirring, select physical purity of seed and germination percentage is all higher than 85% Oil lamp flower seed；
Step 4-1, sow seeds after sterilize：Sowing post processing is sterilized and the water process in seedling growth greenhouse after including sowing seeds, wherein described spread Sterilize after kind and refer to after sowing seeds, 5kg water is added toward aerosol apparatus, then 50% fenaminosulf 16g is added in water, after shaking up Even is sprayed on the floating seedling tray after sowing terminates, and finally the floating seedling tray after sterilization is put in seedling growth greenhouse；
Water process in step 4-2, seedling growth greenhouse：Seedlings nursing plate after sowing seeds moves into the seedling growth greenhouse same day, adds in seedling growth greenhouse deep The water for 15cm is spent, is then added with the mother solution for having configured and is carried out disinfection in water, and make the quality of chlorine dioxide mother solution and water Than for 1:100；
Step 5, seedling management：The temperature in seedling growth greenhouse is kept at 20~35 DEG C, and relative humidity is less than 90%.Enter in Herba Erigerontiss When entering the little cross phase, and to Herba Erigerontiss spraying fungicide, wherein for the first time the antibacterial of sprinkling is to dislike white phonetic copper bacterium ester 1g by 38% Mix with 80% Mancozeb 4g, be then made into 1200 times of liquid, for the first time the time of sprinkling is the 15th after sowing terminates My god, second spraying fungicide is, by 15% hymexazol 1g, 72.2% Propamocarb 2g and 75% Bravo 2g mixing, then to be matched somebody with somebody Into 800 times of liquid, the time of second sprinkling is the 25th day after sowing terminates, and third time spraying fungicide is by 99% di(2-ethylhexyl)phosphate 1000 times of liquid 3g of hydrogen potassium, 40% pyrimethanil 2g and 72% cymoxanil mancozeb 2g mixing, is then configured to 1000 times of liquid, third time sprinkling Time is the 45th day after sowing terminates, and the 4th spraying fungicide is that 43% essence first frost MnZn 2g is configured to into 700 times of liquid, the Four times sprinkling time be sowing terminate after the 55th day, and when find have Herba Erigerontiss seedling the state of an illness occur when, need in time by It cleans out canopy.
Embodiment 3
A kind of method that prevention Herba Erigerontiss floating seedlings seedling sudden fall ill occurs, comprises the steps：
Step 1, sowing pre-treatment：Select annual late January, temperature on average at 8 DEG C and it is fine when for seeding and growing seedling Time, before seeding and growing seedling, first the Herba Erigerontiss hair kind that 4kg storage phases are 5 months is placed in cloth bag, and is beaten repeatedly with wooden stick The seed pappus of 20 minutes to more than 91% comes off, and the seed after beating is screened with the sieve of 6 mesh, is then in wind speed 2m/s or blast are 0.2N/m2Blower fan advance sector-style choosing, make physical purity of seed be more than 90%；
The configuration of step 2-1, disinfectant solution：From the chlorine dioxide powder that content is 10%, by 1:10 mass ratio is made into mother with water Liquid, then presses 1 by mother solution:50 mass ratio is added to the water and is made into disinfectant solution；
The sterilization of step 2-2, floating seedling tray：Draw disinfectant solution to carry out floating seedling tray spray in all directions with giant Sterilization is spilt, the floating seedling tray after sterilization pocket must downwards be carried out concentration and be piled up in cuboid, and the floating piled up is educated Seed plate integrally uses plastic film seal, piles up 6 days；
The sterilization of step 2-3, seedling growth greenhouse：Carry out 6 days before seeding operation carrying out disinfection seedling growth greenhouse inwall, disinfection way is with height Pressure hydraulic giant draws wall in disinfectant solution spray seedling growth greenhouse, is sterilized liquid in seedling growth greenhouse on wall and sprays three times, closes after sterilization is complete Herba Erigerontiss seedling growth greenhouse carries out fumigation, and the time of fumigation is 2 days；
Step 3-1, substrate sterilization：Sowing includes substrate sterilization, the system of thin substrate is matched somebody with somebody and sowed seeds, the substrate sterilize refer to by The wettable powder 20g of 50% carbendazim, the wettable powder 3g of 3% first frost hymexazol water preparation 17ml, 4%+40% essence first frost * MnZns Mixing, and the 10kg that adds water converts into a medicinal liquid, then by the mass ratio of a medicinal liquid is added in every 70kg substrate, by medicinal liquid and substrate Stir, finally obtain seedling medium；
Step 3-2, the system of thin substrate are matched somebody with somebody：Seedling medium is screened by the sieve of 2 mesh, thin substrate is obtained；
Step 3-3, sow seeds：Seedling medium is filled in floating seedling tray, then with hand pressure it is tight and erase it is unnecessary in card Substrate, then to the thin substrate of 500g adds 90g oil lamps flower seed and mixes thoroughly again, finally that the thin substrate for being mixed with oil lamp flower seed is equal Even is sprinkling upon on 48 floating seedling trays, and makes have 4 oil lamp flower seeds in each hole, wherein oil lamp flower seed with thin base Need to carry out quality testing and Seeds Germination Tests to seed before matter stirring, select physical purity of seed and germination percentage is all higher than 90% Oil lamp flower seed；
Step 4-1, sow seeds after sterilize：Sowing post processing is sterilized and the water process in seedling growth greenhouse after including sowing seeds, wherein after sowing seeds Sterilize and refer to after sowing seeds, 5kg water is added toward aerosol apparatus, then 50% fenaminosulf 16g is added in water, it is uniform after shaking up It is sprayed on the floating seedling tray after sowing terminates, finally the floating seedling tray after sterilization is put in seedling growth greenhouse；
Water process in step 4-2, seedling growth greenhouse：Seedlings nursing plate after sowing seeds moves into the seedling growth greenhouse same day, adds in seedling growth greenhouse deep The water for 16cm is spent, is then added with the mother solution for having configured and is carried out disinfection in water, and make the quality of chlorine dioxide mother solution and water Than for 1:100；
Step 5, seedling management：The temperature in seedling growth greenhouse is kept at 25 DEG C, and relative humidity is less than 90%.Enter little in Herba Erigerontiss During the cross phase, and to Herba Erigerontiss spraying fungicide, wherein for the first time the antibacterial of sprinkling be by 38% dislike white phonetic copper bacterium ester 1g with 80% Mancozeb 4g mixes, and is then made into 1100 times of liquid, and for the first time the time of sprinkling is the 11st day after sowing terminates, Second spraying fungicide is, by 15% hymexazol 1g, 72.2% Propamocarb 2g and 75% Bravo 2g mixing, to be then made into 900 times of liquid, the time of second sprinkling is the 27th day after sowing terminates, and third time spraying fungicide is by 99% biphosphate 1000 times of liquid 3g of potassium, 40% pyrimethanil 2g and 72% cymoxanil mancozeb 2g mixing, is then configured to 850 times of liquid, third time sprinkling when Between terminate for sowing after the 42nd day, the 4th spraying fungicide is that 43% essence first frost MnZn 2g is configured to into 780 times of liquid, the 4th The time of secondary sprinkling is the 57th day after sowing terminates, and when finding to have Herba Erigerontiss seedling the state of an illness occur, is needed in time by it Clean out canopy.
Embodiment 4
A kind of method that prevention Herba Erigerontiss floating seedlings seedling sudden fall ill occurs, comprises the steps：
Step 1, sowing pre-treatment：Select annual early Febuary, temperature on average at 9 DEG C and it is fine when for seeding and growing seedling Time, before seeding and growing seedling, first the Herba Erigerontiss hair kind that 3.5kg storage phases are 1 year is placed in cloth bag, and is beaten repeatedly with wooden stick The seed pappus of 23 minutes to more than 90% comes off, and the seed after beating is screened with the sieve of 6 mesh, is then in wind speed 2.5m/s or blast are 0.60N/m2Blower fan advance sector-style choosing, make physical purity of seed be more than 95%；
The configuration of step 2-1, disinfectant solution：From the chlorine dioxide powder that content is 10%, by 1:10 mass ratio is made into mother with water Liquid, then presses 1 by mother solution:50 mass ratio is added to the water and is made into disinfectant solution；
The sterilization of step 2-2, floating seedling tray：Draw disinfectant solution to carry out floating seedling tray spray in all directions with giant Sterilization is spilt, the floating seedling tray after sterilization pocket must downwards be carried out concentration and be piled up in cylinder, and the floating piled up is educated Seed plate integrally uses plastic film seal, piles up 6 days；
The sterilization of step 2-3, seedling growth greenhouse：Carry out 6 days before seeding operation carrying out disinfection seedling growth greenhouse inwall, disinfection way is with height Pressure hydraulic giant draws wall in disinfectant solution spray seedling growth greenhouse, is sterilized liquid in seedling growth greenhouse on wall and sprays one time, closes after sterilization is complete Herba Erigerontiss seedling growth greenhouse carries out fumigation, and the time of fumigation is 2 days；
Step 3-1, substrate sterilization：Sowing includes substrate sterilization, the system of thin substrate is matched somebody with somebody and sowed seeds, and substrate sterilization is referred to more than 50% The wettable powder 20g of bacterium spirit, the wettable powder 3g mixing of 3% first frost hymexazol water preparation 17ml, 4%+40% essence first frost * MnZns, And the 10kg that adds water converts into a medicinal liquid, then by the mass ratio of a medicinal liquid is added in every 70kg substrate, medicinal liquid and substrate are stirred Uniformly, seedling medium is finally obtained；
Step 3-2, the system of thin substrate are matched somebody with somebody：Seedling medium is screened by the sieve of 2 mesh, thin substrate is obtained；
Step 3-3, sow seeds：Seedling medium is filled in floating seedling tray, then with hand pressure it is tight and erase it is unnecessary in card Substrate, then to the thin substrate of 500g adds 90g oil lamps flower seed and mixes thoroughly again, finally that the thin substrate for being mixed with oil lamp flower seed is equal Even is sprinkling upon on 48 floating seedling trays, and makes have 5 oil lamp flower seeds in each hole, wherein oil lamp flower seed with thin base Need to carry out quality testing and Seeds Germination Tests to seed before matter stirring, select physical purity of seed and germination percentage is all higher than 95% Oil lamp flower seed；
Step 4-1, sow seeds after sterilize：Sowing post processing is sterilized and the water process in seedling growth greenhouse after including sowing seeds, wherein described spread Sterilize after kind and refer to after sowing seeds, 5kg water is added toward aerosol apparatus, then 50% fenaminosulf 16g is added in water, after shaking up Even is sprayed on the floating seedling tray after sowing terminates, and finally the floating seedling tray after sterilization is put in seedling growth greenhouse；
Water process in step 4-2, seedling growth greenhouse：Seedlings nursing plate after sowing seeds moves into the seedling growth greenhouse same day, adds in seedling growth greenhouse deep The water for 19cm is spent, is then added with the mother solution for having configured and is carried out disinfection in water, and make the quality of chlorine dioxide mother solution and water Than for 1:100；
Step 5, seedling management：The temperature in seedling growth greenhouse is kept at 32 DEG C, and relative humidity is less than 80%.Enter little in Herba Erigerontiss During the cross phase, and to Herba Erigerontiss spraying fungicide, wherein for the first time the antibacterial of sprinkling be by 38% dislike white phonetic copper bacterium ester 1g with 80% Mancozeb 4g mixes, and is then made into 1100 times of liquid, and for the first time the time of sprinkling is the 14th day after sowing terminates, Second spraying fungicide is, by 15% hymexazol 1g, 72.2% Propamocarb 2g and 75% Bravo 2g mixing, to be then made into 1000 times of liquid, the time of second sprinkling is the 28th day after sowing terminates, and third time spraying fungicide is by 99% biphosphate 1000 times of liquid 3g of potassium, 40% pyrimethanil 2g and 72% cymoxanil mancozeb 2g mixing, is then configured to 950 times of liquid, third time sprinkling when Between terminate for sowing after the 44th day, the 4th spraying fungicide is that 43% essence first frost MnZn 2g is configured to into 860 times of liquid, the 4th The time of secondary sprinkling is the 60th day after sowing terminates, and when finding to have Herba Erigerontiss seedling the state of an illness occur, is needed in time by it Clean out canopy.
Embodiment 5
A kind of method that prevention Herba Erigerontiss floating seedlings seedling sudden fall ill occurs, comprises the steps：
Step 1, sowing pre-treatment：Select annual late January, temperature on average at 9 DEG C and it is fine when for seeding and growing seedling Time, before seeding and growing seedling, first the Herba Erigerontiss hair kind by 4.5kg storage phases less than 1 year is placed in cloth bag, and is beaten repeatedly with wooden stick The seed pappus for making a call to 20 minutes to more than 90% comes off, and the seed after beating is screened with the sieve of 6 mesh, then in wind speed It is 0.35N/m for 2.9m/s or blast2Blower fan advance sector-style choosing, make physical purity of seed be more than 80%；
The configuration of step 2-1, disinfectant solution：From the chlorine dioxide powder that content is 10%, by 1:10 mass ratio is made into mother with water Liquid, then presses 1 by mother solution:50 mass ratio is added to the water and is made into disinfectant solution；
The sterilization of step 2-2, floating seedling tray：Draw disinfectant solution to carry out floating seedling tray spray in all directions with giant Sterilization is spilt, the floating seedling tray after sterilization pocket must downwards be carried out concentration and be piled up in cuboid, and the floating piled up is educated Seed plate integrally uses plastic film seal, piles up 5 days；
The sterilization of step 2-3, seedling growth greenhouse：Carry out 6 days before seeding operation carrying out disinfection seedling growth greenhouse inwall, disinfection way is with height Pressure hydraulic giant draws wall in disinfectant solution spray seedling growth greenhouse, is sterilized liquid in seedling growth greenhouse on wall and sprays one time, closes after sterilization is complete Herba Erigerontiss seedling growth greenhouse carries out fumigation, and the time of fumigation is 2 days；
Step 3-1, substrate sterilization：Sowing includes substrate sterilization, the system of thin substrate is matched somebody with somebody and sowed seeds, the substrate sterilize refer to by The wettable powder 20g of 50% carbendazim, the wettable powder 3g of 3% first frost hymexazol water preparation 17ml, 4%+40% essence first frost * MnZns Mixing, and the 10kg that adds water converts into a medicinal liquid, then by the mass ratio of a medicinal liquid is added in every 70kg substrate, by medicinal liquid and substrate Stir, finally obtain seedling medium；
Step 3-2, the system of thin substrate are matched somebody with somebody：Seedling medium is screened by the sieve of 2 mesh, thin substrate is obtained；
Step 3-3, sow seeds：Seedling medium is filled in floating seedling tray, then with hand pressure it is tight and erase it is unnecessary in card Substrate, then to the thin substrate of 500g adds 90g oil lamps flower seed and mixes thoroughly again, finally that the thin substrate for being mixed with oil lamp flower seed is equal Even is sprinkling upon on 48 floating seedling trays, and makes have 6 oil lamp flower seeds in each hole, wherein oil lamp flower seed with thin base Need to carry out quality testing and Seeds Germination Tests to seed before matter stirring, select physical purity of seed and germination percentage is all higher than 80% Oil lamp flower seed；
Step 4-1, sow seeds after sterilize：Sowing post processing is sterilized and the water process in seedling growth greenhouse after including sowing seeds, wherein described spread Sterilize after kind and refer to after sowing seeds, 5kg water is added toward aerosol apparatus, then 50% fenaminosulf 16g is added in water, after shaking up Even is sprayed on the floating seedling tray after sowing terminates, and finally the floating seedling tray after sterilization is put in seedling growth greenhouse；
Water process in step 4-2, seedling growth greenhouse：Seedlings nursing plate after sowing seeds moves into the seedling growth greenhouse same day, adds in seedling growth greenhouse deep The water for 16cm is spent, is then added with the mother solution for having configured and is carried out disinfection in water, and make the quality of chlorine dioxide mother solution and water Than for 1:100；
Step 5, seedling management：The temperature in seedling growth greenhouse is kept at 34 DEG C, and relative humidity is less than 90%.Enter little in Herba Erigerontiss During the cross phase, and to Herba Erigerontiss spraying fungicide, wherein for the first time the antibacterial of sprinkling be by 38% dislike white phonetic copper bacterium ester 1g with 80% Mancozeb 4g mixes, and is then made into 1000 times of liquid, and for the first time the time of sprinkling is the 15th day after sowing terminates, Second spraying fungicide is, by 15% hymexazol 1g, 72.2% Propamocarb 2g and 75% Bravo 2g mixing, to be then made into 900 times of liquid, the time of second sprinkling is the 27th day after sowing terminates, and third time spraying fungicide is by 99% biphosphate 1000 times of liquid 3g of potassium, 40% pyrimethanil 2g and 72% cymoxanil mancozeb 2g mixing, is then configured to 900 times of liquid, third time sprinkling when Between terminate for sowing after the 43rd day, the 4th spraying fungicide is that 43% essence first frost MnZn 2g is configured to into 900 times of liquid, the 4th The time of secondary sprinkling is the 60th day after sowing terminates, and when finding to have Herba Erigerontiss seedling the state of an illness occur, is needed in time by it Clean out canopy.
Embodiment 6
A kind of method that prevention Herba Erigerontiss floating seedlings seedling sudden fall ill occurs, comprises the steps：
Step 1, sowing pre-treatment：Select annual early Febuary, temperature on average at 10 DEG C and it is fine when for seeding and growing seedling Time, before seeding and growing seedling, first the Herba Erigerontiss hair kind by 5kg storage phases less than 1 year is placed in cloth bag, and is beaten repeatedly with wooden stick The seed pappus of 20 minutes to more than 93% comes off, and the seed after beating is screened with the sieve of 6 mesh, is then in wind speed 2.3m/s or blast are 0.55N/m2Blower fan advance sector-style choosing, make physical purity of seed be more than 80%；
The configuration of step 2-1, disinfectant solution：From the chlorine dioxide powder that content is 10%, by 1:10 mass ratio is made into mother with water Liquid, then presses 1 by mother solution:50 mass ratio is added to the water and is made into disinfectant solution；
The sterilization of step 2-2, floating seedling tray：Draw disinfectant solution to carry out floating seedling tray spray in all directions with giant Sterilization is spilt, the floating seedling tray after sterilization pocket must downwards be carried out concentration and be piled up in cuboid, and the floating piled up is educated Seed plate integrally uses plastic film seal, piles up 7 days；
The sterilization of step 2-3, seedling growth greenhouse：Carry out 7 days before seeding operation carrying out disinfection seedling growth greenhouse inwall, disinfection way is with height Pressure hydraulic giant draws wall in disinfectant solution spray seedling growth greenhouse, is sterilized liquid in seedling growth greenhouse on wall and sprays one time, closes after sterilization is complete Herba Erigerontiss seedling growth greenhouse carries out fumigation, and the time of fumigation is 2 days；
Step 3-1, substrate sterilization：Sowing includes substrate sterilization, the system of thin substrate is matched somebody with somebody and sowed seeds, the substrate sterilize refer to by The wettable powder 20g of 50% carbendazim, the wettable powder 3g of 3% first frost hymexazol water preparation 17ml, 4%+40% essence first frost * MnZns Mixing, and the 10kg that adds water converts into a medicinal liquid, then by the mass ratio of a medicinal liquid is added in every 70kg substrate, by medicinal liquid and substrate Stir, finally obtain seedling medium；
Step 3-2, the system of thin substrate are matched somebody with somebody：Seedling medium is screened by the sieve of 2 mesh, thin substrate is obtained；
Step 3-3, sow seeds：Seedling medium is filled in floating seedling tray, then with hand pressure it is tight and erase it is unnecessary in card Substrate, then to the thin substrate of 500g adds 90g oil lamps flower seed and mixes thoroughly again, finally that the thin substrate for being mixed with oil lamp flower seed is equal Even is sprinkling upon on 48 floating seedling trays, and makes have 4 oil lamp flower seeds in each hole, wherein oil lamp flower seed with thin base Need to carry out quality testing and Seeds Germination Tests to seed before matter stirring, select physical purity of seed and germination percentage is all higher than 81% Oil lamp flower seed；
Step 4-1, sow seeds after sterilize：Sowing post processing is sterilized and the water process in seedling growth greenhouse after including sowing seeds, wherein described spread Sterilize after kind and refer to after sowing seeds, 5kg water is added toward aerosol apparatus, then 50% fenaminosulf 16g is added in water, after shaking up Even is sprayed on the floating seedling tray after sowing terminates, and finally the floating seedling tray after sterilization is put in seedling growth greenhouse；
Water process in step 4-2, seedling growth greenhouse：Seedlings nursing plate after sowing seeds moves into the seedling growth greenhouse same day, adds in seedling growth greenhouse deep The water for 18cm is spent, is then added with the mother solution for having configured and is carried out disinfection in water, and make the quality of chlorine dioxide mother solution and water Than for 1:100；
Step 5, seedling management：The temperature in seedling growth greenhouse is kept at 27 DEG C, and relative humidity is less than 70%.Enter little in Herba Erigerontiss During the cross phase, and to Herba Erigerontiss spraying fungicide, wherein for the first time the antibacterial of sprinkling be by 38% dislike white phonetic copper bacterium ester 1g with 80% Mancozeb 4g mixes, and is then made into 1200 times of liquid, and for the first time the time of sprinkling is the 13rd day after sowing terminates, Second spraying fungicide is, by 15% hymexazol 1g, 72.2% Propamocarb 2g and 75% Bravo 2g mixing, to be then made into 1100 times of liquid, the time of second sprinkling is the 27th day after sowing terminates, and third time spraying fungicide is by 99% biphosphate 1000 times of liquid 3g of potassium, 40% pyrimethanil 2g and 72% cymoxanil mancozeb 2g mixing, is then configured to 880 times of liquid, third time sprinkling when Between terminate for sowing after the 41st day, the 4th spraying fungicide is that 43% essence first frost MnZn 2g is configured to into 880 times of liquid, the 4th The time of secondary sprinkling is the 59th day after sowing terminates, and when finding to have Herba Erigerontiss seedling the state of an illness occur, is needed in time by it Clean out canopy.
Embodiment 7
A kind of method that prevention Herba Erigerontiss floating seedlings seedling sudden fall ill occurs, comprises the steps：
Step 1, sowing pre-treatment：Select annual late January, temperature on average at 9 DEG C and it is fine when for seeding and growing seedling Time, before seeding and growing seedling, first the Herba Erigerontiss hair kind by 4.5kg storage phases less than 1 year is placed in cloth bag, and is beaten repeatedly with wooden stick The seed pappus for making a call to 19 minutes to more than 90% comes off, and the seed after beating is screened with the sieve of 6 mesh, then in wind speed It is 0.30N/m for 3.0m/s or blast2Blower fan advance sector-style choosing, make physical purity of seed be more than 81%；
The configuration of step 2-1, disinfectant solution：From the chlorine dioxide powder that content is 10%, by 1:10 mass ratio is made into mother with water Liquid, then presses 1 by mother solution:50 mass ratio is added to the water and is made into disinfectant solution；
The sterilization of step 2-2, floating seedling tray：Draw disinfectant solution to carry out floating seedling tray spray in all directions with giant Sterilization is spilt, the floating seedling tray after sterilization pocket must downwards be carried out concentration and be piled up in frustum, and by the floating seedlings piled up Body plastic film seal is checked and regulated, 6 days are piled up；
The sterilization of step 2-3, seedling growth greenhouse：Carry out 5 days before seeding operation carrying out disinfection seedling growth greenhouse inwall, disinfection way is with height Pressure hydraulic giant draws wall in disinfectant solution spray seedling growth greenhouse, is sterilized liquid in seedling growth greenhouse on wall and sprays one time, closes after sterilization is complete Herba Erigerontiss seedling growth greenhouse carries out fumigation, and the time of fumigation is 2 days；
Step 3-1, substrate sterilization：Sowing includes substrate sterilization, the system of thin substrate is matched somebody with somebody and sowed seeds, the substrate sterilize refer to by The wettable powder 20g of 50% carbendazim, the wettable powder 3g of 3% first frost hymexazol water preparation 17ml, 4%+40% essence first frost * MnZns Mixing, and the 10kg that adds water converts into a medicinal liquid, then by the mass ratio of a medicinal liquid is added in every 70kg substrate, by medicinal liquid and substrate Stir, finally obtain seedling medium；
Step 3-2, the system of thin substrate are matched somebody with somebody：Seedling medium is screened by the sieve of 2 mesh, thin substrate is obtained；
Step 3-3, sow seeds：Seedling medium is filled in floating seedling tray, then with hand pressure it is tight and erase it is unnecessary in card Substrate, then to the thin substrate of 500g adds 90g oil lamps flower seed and mixes thoroughly again, finally that the thin substrate for being mixed with oil lamp flower seed is equal Even is sprinkling upon on 48 floating seedling trays, and makes have 6 oil lamp flower seeds in each hole, wherein oil lamp flower seed with thin base Need to carry out quality testing and Seeds Germination Tests to seed before matter stirring, select physical purity of seed and germination percentage is all higher than 80% Oil lamp flower seed；
Step 4-1, sow seeds after sterilize：Sowing post processing is sterilized and the water process in seedling growth greenhouse after including sowing seeds, wherein described spread Sterilize after kind and refer to after sowing seeds, 5kg water is added toward aerosol apparatus, then 50% fenaminosulf 16g is added in water, after shaking up Even is sprayed on the floating seedling tray after sowing terminates, and finally the floating seedling tray after sterilization is put in seedling growth greenhouse；
Water process in step 4-2, seedling growth greenhouse：Seedlings nursing plate after sowing seeds moves into the seedling growth greenhouse same day, adds in seedling growth greenhouse deep The water for 20cm is spent, is then added with the mother solution for having configured and is carried out disinfection in water, and make the quality of chlorine dioxide mother solution and water Than for 1:100；
Step 5, seedling management：The temperature in seedling growth greenhouse is kept at 25 DEG C, and relative humidity is less than 85%.Enter little in Herba Erigerontiss During the cross phase, and to Herba Erigerontiss spraying fungicide, wherein for the first time the antibacterial of sprinkling be by 38% dislike white phonetic copper bacterium ester 1g with 80% Mancozeb 4g mixes, and is then made into 1200 times of liquid, and for the first time the time of sprinkling is the 12nd day after sowing terminates, Second spraying fungicide is, by 15% hymexazol 1g, 72.2% Propamocarb 2g and 75% Bravo 2g mixing, to be then made into 820 times of liquid, the time of second sprinkling is the 29th day after sowing terminates, and third time spraying fungicide is by 99% biphosphate 1000 times of liquid 3g of potassium, 40% pyrimethanil 2g and 72% cymoxanil mancozeb 2g mixing, is then configured to 950 times of liquid, third time sprinkling when Between terminate for sowing after the 41st day, the 4th spraying fungicide is that 43% essence first frost MnZn 2g is configured to into 880 times of liquid, the 4th The time of secondary sprinkling is the 56th day after sowing terminates, and when finding to have Herba Erigerontiss seedling the state of an illness occur, is needed in time by it Clean out canopy.
Embodiment 8
A kind of method that prevention Herba Erigerontiss floating seedlings seedling sudden fall ill occurs, comprises the steps：
Step 1, sowing pre-treatment：Select annual early Febuary, temperature on average at 7 DEG C and it is fine when for seeding and growing seedling Time, before seeding and growing seedling, first the Herba Erigerontiss hair kind by 5kg storage phases less than 1 year is placed in cloth bag, and is beaten repeatedly with wooden stick The seed pappus of 25 minutes to more than 90% comes off, and the quality of Herba Erigerontiss hair kind is 3kg wherein in each cloth bag, after beating Seed is screened with the sieve of 6 mesh, and then be 3.1m/s in wind speed or blast is 0.55N/m2Blower fan advance sector-style choosing, make Physical purity of seed is more than 90%；
The configuration of step 2-1, disinfectant solution：From the chlorine dioxide powder that content is 10%, by 1:10 mass ratio is made into mother with water Liquid, then presses 1 by mother solution:50 mass ratio is added to the water and is made into disinfectant solution；
The sterilization of step 2-2, floating seedling tray：Draw disinfectant solution to carry out floating seedling tray spray in all directions with giant Sterilization is spilt, the floating seedling tray after sterilization pocket must downwards be carried out concentration and be piled up in cuboid or other regular bodies, and will The floating seedling tray piled up integrally uses plastic film seal, piles up 6 days；
The sterilization of step 2-3, seedling growth greenhouse：Carry out 6 days before seeding operation carrying out disinfection seedling growth greenhouse inwall, disinfection way is with height Pressure hydraulic giant draws wall in disinfectant solution spray seedling growth greenhouse, is sterilized liquid in seedling growth greenhouse on wall and sprays one time, closes after sterilization is complete Herba Erigerontiss seedling growth greenhouse carries out fumigation, and the time of fumigation is 1 day；
Step 3-1, substrate sterilization：Sowing includes substrate sterilization, the system of thin substrate is matched somebody with somebody and sowed seeds, the substrate sterilize refer to by The wettable powder 20g of 50% carbendazim, the wettable powder 3g of 3% first frost hymexazol water preparation 17ml, 4%+40% essence first frost * MnZns Mixing, and the 10kg that adds water converts into a medicinal liquid, then by the mass ratio of a medicinal liquid is added in every 70kg substrate, by medicinal liquid and substrate Stir, finally obtain seedling medium；
Step 3-2, the system of thin substrate are matched somebody with somebody：Seedling medium is screened by the sieve of 2 mesh, thin substrate is obtained；
Step 3-3, sow seeds：Seedling medium is filled in floating seedling tray, then with hand pressure it is tight and erase it is unnecessary in card Substrate, then to the thin substrate of 500g adds 90g oil lamps flower seed and mixes thoroughly again, finally that the thin substrate for being mixed with oil lamp flower seed is equal Even is sprinkling upon on 48 floating seedling trays, and makes have 56 oil lamp flower seeds in each hole, wherein oil lamp flower seed with it is thin Need to carry out quality testing and Seeds Germination Tests to seed before substrate stirring, select physical purity of seed and germination percentage is all higher than 85% oil lamp flower seed；
Step 4-1, sow seeds after sterilize：Sowing post processing is sterilized and the water process in seedling growth greenhouse after including sowing seeds, wherein described spread Sterilize after kind and refer to after sowing seeds, 5kg water is added toward aerosol apparatus, then 50% fenaminosulf 16g is added in water, after shaking up Even is sprayed on the floating seedling tray after sowing terminates, and finally the floating seedling tray after sterilization is put in seedling growth greenhouse；
Water process in step 4-2, seedling growth greenhouse：Seedlings nursing plate after sowing seeds moves into the seedling growth greenhouse same day, adds in seedling growth greenhouse deep The water for 15cm is spent, is then added with the mother solution for having configured and is carried out disinfection in water, and make the quality of chlorine dioxide mother solution and water Than for 1:100；
Step 5, seedling management：The temperature in seedling growth greenhouse is kept at 35 DEG C, and relative humidity is less than 90%.Enter little in Herba Erigerontiss During the cross phase, and to Herba Erigerontiss spraying fungicide, wherein for the first time the antibacterial of sprinkling be by 38% dislike white phonetic copper bacterium ester 1g with 80% Mancozeb 4g mixes, and is then made into 1050 times of liquid, and for the first time the time of sprinkling is the 14th day after sowing terminates, Second spraying fungicide is, by 15% hymexazol 1g, 72.2% Propamocarb 2g and 75% Bravo 2g mixing, to be then made into 1150 times of liquid, the time of second sprinkling is the 27th day after sowing terminates, and third time spraying fungicide is by 99% biphosphate 1000 times of liquid 3g of potassium, 40% pyrimethanil 2g and 72% cymoxanil mancozeb 2g mixing, is then configured to 800 times of liquid, third time sprinkling when Between terminate for sowing after the 45th day, the 4th spraying fungicide is that 43% essence first frost MnZn 2g is configured to into 900 times of liquid, the 4th The time of secondary sprinkling is the 56th day after sowing terminates, and when finding to have Herba Erigerontiss seedling the state of an illness occur, is needed in time by it Clean out canopy.
In above-described embodiment 1~8, the length of seedling growth greenhouse has 8 meters, and wide to have 1.4 meters, height has 1.2 meters, and a seedling growth greenhouse is built-in There are 48 floating seedling trays, a length of 65.5 centimetres of floating seedling tray, wide there are 33.5 centimetres, height there are 4.5 centimetres, and each is floated There are 325 size identical holes on seedlings nursing plate.

Claims (10)

1. a kind of method that prevention Herba Erigerontiss floating seedlings seedling sudden fall ill occurs, it is characterised in that：Including step seedling management, The sprinkling of the seedling management including seedling stage antibacterial, the sprinkling of the seedling stage antibacterial specifically refer to when seedling shed seed sprout into Regular spraying fungicide of rotating at regular intervals to Herba Erigerontiss seedling after entering the little cross phase, the spraying fungicide of rotating at regular intervals refers to seedling stage The antibacterial of prevention damping off wants rotation to use.
2. the method that a kind of prevention Herba Erigerontiss floating seedlings seedling sudden fall ill according to claim 1 occurs, its feature exists In：The spraying fungicide of rotating at regular intervals to Herba Erigerontiss seedling is specifically referred in two months after sowing terminates, with per 15 days For the cycle, four antibacterial are sprayed to Herba Erigerontiss seedling altogether.
3. the method that a kind of prevention Herba Erigerontiss floating seedlings seedling sudden fall ill according to claim 2 occurs, its feature exists In：The sowing is concrete to the antibacterial of the Herba Erigerontiss seedling sprinkling in a seedling growth greenhouse and the time of antibacterial sprinkling after terminating For：
The antibacterial of the first time sprinkling is to dislike white phonetic copper bacterium ester 1g by 38% to mix with 80% Mancozeb 4g, is then matched somebody with somebody Into 1000~1200 times of liquid, for the first time the time of sprinkling is the 10th~15 day after sowing terminates；
Second spraying fungicide is, by 15% hymexazol 1g, 72.2% Propamocarb 2g and 75% Bravo 2g mixing, then will It is made into 800~1200 times of liquid, and the time of second sprinkling is the 25th~30 day after sowing terminates；
The third time spraying fungicide is by 99% potassium dihydrogen phosphate, 1000 times of liquid 3g, 40% pyrimethanil 2g and 72% cymoxanil mancozeb 2g mixes, and is then configured to 800~1000 times of liquid, and the time of third time sprinkling is the 40th~45 day after sowing terminates；
4th spraying fungicide is that 43% essence first frost MnZn 2g is configured to into 700~900 times of liquid, the 4th sprinkling when Between for sowing terminate after the 55th~60 day.
4. the method that a kind of prevention Herba Erigerontiss floating seedlings seedling sudden fall ill according to claim 1 occurs, its feature exists In：Also include step to sow before pre-treatment, sowing and disinfect, sow and sow post processing, wherein sowing pre-treatment is referred to Select annual mid or late January to early Febuary, temperature on average at 7~10 DEG C and it is fine when for seeding and growing seedling time, Before seeding and growing seedling, first 3~5kg storage phases were placed in cloth bag less than the Herba Erigerontiss hair kind of 1 year, and 18 are beaten repeatedly with wooden stick~ The seed pappus of 25 minutes to more than 90% comes off, and the seed after beating is screened with the sieve of 6 mesh, is then in wind speed 1.6~3.3m/s or blast are 0.016~0.68N/m2Blower fan advance sector-style choosing, make physical purity of seed be more than 80%.
5. the method that a kind of prevention Herba Erigerontiss floating seedlings seedling sudden fall ill according to claim 4 occurs, its feature exists In：Disinfecting including the configuration of disinfectant solution, the sterilization of floating seedling tray and the sterilization of seedling growth greenhouse, wherein institute before the sowing The configuration for stating disinfectant solution is referred to from the chlorine dioxide powder that content is 10%, by 1:10 mass ratio is made into mother solution with water, then Mother solution is pressed into 1:50 mass ratio is added to the water and is made into disinfectant solution；
The sterilization of floating seedling tray refers to and draw disinfectant solution to carry out spray disinfectant to floating seedling tray with giant, after sterilization Floating seedling tray pocket must downwards be carried out concentration and pile up, and the floating seedling tray piled up integrally is used plastic film seal, Air circulation is prevented, the time piled up is 5~7 days；
The sterilization of seedling growth greenhouse is referred to be carried out 5~7 days before seeding operation carrying out disinfection seedling growth greenhouse inwall, and disinfection way is to use high pressure Hydraulic giant draws wall in disinfectant solution spray seedling growth greenhouse, is at least sterilized liquid in the seedling growth greenhouse on wall and sprays one time, completes in sterilization Closing Herba Erigerontiss seedling growth greenhouse afterwards carries out fumigation, and the time of the fumigation is 1~2 day.
6. the method that a kind of prevention Herba Erigerontiss floating seedlings seedling sudden fall ill according to claim 4 occurs, its feature exists In：The sowing includes substrate sterilization, the system of thin substrate is matched somebody with somebody and sowed seeds, and the substrate sterilization is referred to the wettable of 50% carbendazim Property powder 20g, the wettable powder 3g of 3% first frost hymexazol water preparation 17ml, 4%+40% essence first frost * MnZns mix, and the 10kg that adds water A medicinal liquid is converted into, then in the ratio of a medicinal liquid is added in every 70kg substrate, medicinal liquid is stirred with substrate, finally obtained Seedling medium；
The screening of thin substrate is referred to screens seedling medium by the sieve of 2 mesh, obtains thin substrate；
Sow seeds and specifically refer to that seedling medium is filled in floating seedling tray, it is then tight with hand pressure and erase base unnecessary in card Matter, then to the thin substrate of 500g adds 90g oil lamps flower seed and mixes thoroughly again, finally that the thin substrate for being mixed with oil lamp flower seed is uniform Be sprinkling upon on 48 floating seedling trays, and make have 3~6 oil lamp flower seeds in each hole.
7. the method that a kind of prevention Herba Erigerontiss floating seedlings seedling sudden fall ill according to claim 6 occurs, its feature exists In：In the step sowing, oil lamp flower seed needed to carry out seed quality testing before with the stirring of thin substrate and seed is sent out Bud is tested, select physical purity of seed and germination percentage be all higher than 80% oil lamp flower seed.
8. the method that a kind of prevention Herba Erigerontiss floating seedlings seedling sudden fall ill according to claim 4 occurs, its feature exists In：The sowing post processing include sowing seeds after water process in sterilization and seedling growth greenhouse, wherein it is described sow seeds after sterilization refer to and spreading After kind, 5kg water is added toward aerosol apparatus, then 50% fenaminosulf 16g is added in water, sowing knot is uniformly sprayed at after shaking up On floating seedling tray after beam, finally the floating seedling tray after sterilization is put in seedling growth greenhouse；
Water process in the seedling growth greenhouse refers to that the seedlings nursing plate after sowing seeds moves into the seedling growth greenhouse same day, and depth is added in seedling growth greenhouse For the water of 15cm~20cm, then added with the mother solution for having configured and carried out disinfection in water, and make chlorine dioxide mother solution with water Mass ratio is 1:100.
9. the method that a kind of prevention Herba Erigerontiss floating seedlings seedling sudden fall ill according to claim 1 occurs, its feature exists In：The seedling management also includes canopy temperature control system, and the canopy temperature control system refers specifically to keep the temperature in seedling growth greenhouse at 20~35 DEG C, And relative humidity is less than 90%, while when finding to have Herba Erigerontiss seedling the state of an illness occur, canopy is cleaned out in time.
10. the method that a kind of prevention Herba Erigerontiss floating seedlings seedling sudden fall ill according to claim 1 occurs, its feature exists In：The length of the seedling growth greenhouse has 8 meters, and wide to have 1.4 meters, height has 1.2 meters, and one seedling growth greenhouse is built with 48 floating seedlings Disk, a length of 65.5 centimetres of the floating seedling tray, wide to have 33.5 centimetres, height has on 4.5 centimetres, and each floating seedling tray and has 325 size identical holes.
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