CN110477021A - The solid microbial and preparation method of a kind of pair of potato disease-preventing and yield-increasing - Google Patents

The solid microbial and preparation method of a kind of pair of potato disease-preventing and yield-increasing Download PDF

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Publication number
CN110477021A
CN110477021A CN201910832008.7A CN201910832008A CN110477021A CN 110477021 A CN110477021 A CN 110477021A CN 201910832008 A CN201910832008 A CN 201910832008A CN 110477021 A CN110477021 A CN 110477021A
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yield
potato
increasing
preventing
solid microbial
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Inventor
赵卫松
马平
李社增
郭庆港
鹿秀云
王培培
张晓云
董丽红
苏振贺
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Institute of Plant Protection Hebei Academy of Agricultural and Forestry Sciences
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Institute of Plant Protection Hebei Academy of Agricultural and Forestry Sciences
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N63/00Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N1/00Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
    • C12N1/04Preserving or maintaining viable microorganisms
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N1/00Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
    • C12N1/20Bacteria; Culture media therefor

Abstract

The present invention relates to the solid microbial and preparation method of a kind of pair of potato disease-preventing and yield-increasing, the active constituent of the solid microbial to potato disease-preventing and yield-increasing is bacillus amyloliquefaciens PHODG36, additionally contains dispersing agent, wetting agent and filler.The invention also discloses the methods for preparing the microbial bacterial agent: fermentation prepares the bacillus amyloliquefaciens PHODG36 fermentation liquid, will prepare resulting fermentation liquid and other raw materials are sufficiently mixed uniformly to get the solid microbial in a manner of mechanical mixture.The invention also discloses the solid microbials to the specific effect in terms of prevention and treatment potato verticillium wilt and yield.The generation of potato verticillium wilt can be greatly lowered using solid microbial of the present invention, and the yield of potato can be significantly improved.

Description

The solid microbial and preparation method of a kind of pair of potato disease-preventing and yield-increasing
Technical field
The invention belongs to technical field of microbe application, and in particular to the micro- life of the solid of a kind of pair of potato disease-preventing and yield-increasing Object microbial inoculum and preparation method.
Background technique
Potato is the important cereal crops in China, is had great importance to Ensuring Food Safety.China is by Ma Ling Potato is classified as the fourth-largest staple food grain after rice, wheat, corn, and potato is ensureing China's grain security, accurate poverty alleviation, kind It plants in adjustment of agricultural stracture and agricultural industry transition and upgrade and plays vital effect.The cultivated area of China potato It is ranked the first in the world with total output, but unit yield is because the restriction of the bottleneck factors such as pest and disease damage is lower than world average level.Closely Nian Lai directly affects potato yield and quality since potato continuous cropping causes soil-borne disease to have the tendency that aggravating year by year, Biggish economic loss is brought to Potato Industry.
Potato verticillium wilt (Verticillium wilt of potato) is also known as early dead disease or precocious disease, gradually at For one of the Major Diseases in potato production, it is that simultaneous kind of typical soil biography passes vascular bundle diseases, causes potato early dead, gently Person underproduction 20%-30%, severe one are lost up to 50% or more, and the yield and quality of potato is seriously affected.It is common in the art Using the method for chemical bactericide prevention and treatment soil-borne disease, however existing chemical bactericide effect is single, and long-time service leads to cause of disease The enhancing of bacterium resistance, while also will cause ecological environment and seriously polluting, directly increase the residual in agricultural product, to human health band To seriously endanger.Microbial bactericide is with its environment friendly and adaptable is more and more closed in agricultural production Note.Therefore, the microbial bactericide that targetedly development prevents and treats potato verticillium wilt has become urgent in agricultural production Demand.
At this stage, correlative study and product of the microbial bactericide applied to potato verticillium wilt are less, and lack correct The operation standard effectively prevented is directed to potato verticillium wilt safely and effectively microorganism so needing us and developing one kind Microbial inoculum, to cope with the present market demand.
Summary of the invention
In order to solve the above problems existing in the present technology, potato disease-preventing and yield-increasing is consolidated the present invention provides a kind of Body microbial bacterial agent, the active constituent of the solid microbial to potato disease-preventing and yield-increasing are bacillus amyloliquefaciens PHODG36 additionally contains dispersing agent, wetting agent and filler, each material component is carried out appropriate weight proportion, finally The solid microbial that there is prevention and treatment verticillium wilt and production-increasing function to potato is prepared.
Bacillus amyloliquefaciens PHODG36 of the present invention was preserved in China Microbiological bacterium on September 26th, 2016 Kind preservation administration committee common micro-organisms center, depositary institution address: Yard 1, BeiChen xi Road, Chaoyang District, Beijing City 3 China Institute of microbiology, the academy of sciences, deposit number are CGMCC No.13041;Classification system are as follows: Bacillus amyloliquefaciens PHODG36.Patent (the application number that the bacterial strain has been announced on 2 15th, 2017 201610876803.2) it is disclosed, is not related to the preservation of the bacterial strain in the application.
The technical scheme adopted by the invention is as follows:
The solid microbial of a kind of pair of potato disease-preventing and yield-increasing, raw material components include:
Bacillus amyloliquefaciens PHODG36 10-80 parts by weight, auxiliary agent 2-16 parts by weight, filler 10-80 parts by weight.
Further, the auxiliary agent includes dispersing agent and wetting agent.
Further, the filler is one of calcium carbonate, soluble starch or talcum powder or a variety of mixtures.
Further, the mass ratio of the dispersing agent and wetting agent is (1-8): (1-8).
Further, the dispersing agent is lignin sulfonic acid sodium salt, sanlose, desugar lignin sulfonic acid One of sodium, ethylene glycol monobutyl ether, polyoxyethanyl alkyl ether, neopelex or a variety of mixtures.
Further, the wetting agent is nekal, fatty alcohol polyoxyethylene ether, detergent alkylate sulphur One of acid sodium-salt or a variety of mixtures.
Further, the dosage form of the solid microbial is wettable powder.
The solid microbial to potato disease-preventing and yield-increasing is made with the following method:
(1) the bacillus amyloliquefaciens PHODG36 bacterial strain frozen is gone into activation culture on LB solid medium, obtained Activated strains;
(2) activated strains are seeded in LB liquid medium, carry out shaking table culture, obtains primary seed solution;
(3) primary seed solution is transferred in seed culture medium, is expanded culture under agitation, obtained Secondary seed solution;
(4) secondary seed solution is forwarded in fermentation medium, carries out fermented and cultured under agitation, obtains The bacillus amyloliquefaciens PHODG36 fermentation liquid;
(5) filler is added in the bacillus amyloliquefaciens PHODG36 fermentation liquid, is spray-dried, obtain dry bacterium Powder;
(6) the dry bacterium powder mixed with the auxiliary agent, stirred, after air-flow crushing and is sieved, it is described right to obtain The solid microbial of potato disease-preventing and yield-increasing.
Further, in step (1), the cultivation temperature is 36-38 DEG C, and the incubation time is 20-28h.
Further, in step (2), the cultivation temperature is 35-38 DEG C, and the incubation time is 20-24h, described to shake Bed revolving speed is 150-200rpm.
Further, in step (3), the volume ratio of the primary seed solution and seed culture medium is (1-5): 100, institute Stating cultivation temperature is 36-38 DEG C, and the incubation time is 18-22h, and the dissolved oxygen amount is 10%-20%, the mixing speed For 170-190rpm, the obtained thallus in the secondary seed solution is logarithmic growth phase.
Further, in step (4), the volume ratio of the secondary seed solution and fermentation medium is (4-6): 100, institute Stating cultivation temperature is 36-38 DEG C, and the incubation time is 24-32h, and the dissolved oxygen amount is 15%-18%, the mixing speed For 170-190rpm.
Further, in step (4), thalline quantity >=6,000,000,000 in the bacillus amyloliquefaciens PHODG36 fermentation liquid/ ML, spore forming rate >=95%.
Further, in step (5), the inlet temperature of the spray drying is 150-200 DEG C, the spray drying Outlet temperature is 50-90 DEG C.
Further, in step (6), the partial size of the solid microbial after the sieving is 300-350 mesh.
Further, the usage mode of the solid microbial to potato disease-preventing and yield-increasing be trickle irrigation, punching apply or Seed dressing.
The invention has the benefit that
(1) solid microbial of the present invention to potato disease-preventing and yield-increasing, by using solution starch gemma bar Bacterium PHODG36 enables the solid microbial to colonize plant rhizosphere rapidly as active constituent, by with Huang The effects of competition of disease of withering pathogen infects site, secretion Substance and plant nutrient is promoted to absorb, farthest sends out Microbial bacterial agent induction disease resistance of plant and the persistently ability of control disease are waved, is had to potato verticillium wilt pathogen relatively strong Inhibiting effect, while can simultaneously significantly improve the yield of potato.
(2) solid microbial of the present invention can reduce the access times and dosage of chemical bactericide, reduce Cost;Delay the generation of drug resistance, nontoxic, non agricultural chemical residuum is environmental-friendly;Ecological Distribution of Soil Microorganisms fauna is adjusted, promotes to make Object growth, and there is production-increasing function;In the selection of dispersing agent and wetting agent, fully takes into account the antagonism between microorganism, assists The requirement handled with seed potato in effect and production practices;Can be used for dressing seed, trickle irrigation and punching apply use, can be according to not With situation reasonable employment, manpower and use cost are saved.
(3) preparation method of solid microbial of the present invention, by sending out bacillus amyloliquefaciens PHODG36 Zymotic fluid is prepared as solid microbial, reach bacterial content is high, can save at normal temperature and not easy in inactivation, reduce finished product packet Dress up this, be easy to transport and other effects, solid microbial of the present invention, the total viable count of effective component between 1.5 × 109-2.0×1010CFU/g, concentration with higher.The solid microbial preparation method is simple, at low cost, raw simultaneously Object is highly-safe, is suitable for industrialized production.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base Embodiment in the present invention, those of ordinary skill in the art obtained institute without making creative work There is other embodiment, belongs to the range that the present invention is protected.
Embodiment 1
The present embodiment provides the solid microbial of a kind of pair of potato disease-preventing and yield-increasing, raw material composition includes:
Bacillus amyloliquefaciens PHODG36 10g, dispersing agent 1g, wetting agent 1g, talcum powder 10g;
Dispersing agent 1g, specially lignin sulfonic acid sodium salt 0.3g, sanlose 0.3g, desugar sulfomethylated lignin Sour sodium 0.4g;
Wetting agent 1g, specially nekal 0.5g, fatty alcohol polyoxyethylene ether 0.5g.
The preparation method of the solid microbial to potato disease-preventing and yield-increasing, comprising the following steps:
(1) constituent of every liter of seed culture medium are as follows: corn flour 30g, yeast extract 3.5g, soybean powder 15g, phosphorus Sour disodium hydrogen 2.0g, potassium dihydrogen phosphate 0.2g, calcium carbonate 2.0g, potassium chloride 0.5g, magnesium sulfate 0.5g, ammonium nitrate 1.50g, sulphur Sour manganese 0.2g, organosilicon 0.3g, pH 7.0-7.5,121 DEG C of sterilizing 30min;The constituent of every liter of fermentation medium are as follows: beautiful Rice flour 30g, yeast extract 3.5g, soybean powder 15g, disodium hydrogen phosphate 2.0g, potassium dihydrogen phosphate 0.2g, calcium carbonate 2.0g, chlorination Potassium 0.5g, magnesium sulfate 0.5g, ammonium nitrate 1.50g, manganese sulfate 0.2g, organosilicon 0.3g, pH 7.0-7.5,121 DEG C of sterilizings 30min;
(2) the bacillus amyloliquefaciens PHODG36 bacterial strain frozen is gone on LB solid medium, is being cultivated at 36 DEG C 20h obtains activated strains;
(3) activated strains are seeded in LB liquid medium, 20h is cultivated at 35 DEG C, shaking speed is 150rpm obtains primary seed solution;
(4) primary seed solution is transferred in seed culture medium according to percent by volume for 1%, dissolved oxygen amount is 10%, mixing speed 170rpm, 36 DEG C of culture 18h to thallus are logarithmic growth phase, obtain secondary seed solution;
(5) secondary seed solution is forwarded in fermentation medium according to percent by volume for 4%, dissolved oxygen amount is 15%, mixing speed 170rpm, 36 DEG C are cultivated for 24 hours, until cell concentration >=6,000,000,000/mL, spore forming rate >=95% obtain The bacillus amyloliquefaciens PHODG36 fermentation liquid;
(6) talcum powder is added in the bacillus amyloliquefaciens PHODG36 fermentation liquid and is spray-dried, import Temperature is 150 DEG C, and outlet temperature is 50 DEG C, obtains dry bacterium powder;
(7) the dry bacterium powder mixed with the dispersing agent and wetting agent, stirred, after air-flow crushing and cross 300 Mesh obtains the solid microbial to potato disease-preventing and yield-increasing.
Embodiment 2
The present embodiment provides the solid microbial of a kind of pair of potato disease-preventing and yield-increasing, raw material composition includes:
Bacillus amyloliquefaciens PHODG36 80g, dispersing agent 8g, wetting agent 8g, soluble starch 80g;
Dispersing agent 8g, specially ethylene glycol monobutyl ether 3g, polyoxyethanyl alkyl ether 3g, neopelex 2g;
Wetting agent 8g, specially fatty alcohol polyoxyethylene ether 4g, pelopon A 4g.
The preparation method of the solid microbial to potato disease-preventing and yield-increasing, comprising the following steps:
(1) constituent of every liter of seed culture medium are as follows: corn flour 30g, yeast extract 3.5g, soybean powder 15g, phosphorus Sour disodium hydrogen 2.0g, potassium dihydrogen phosphate 0.2g, calcium carbonate 2.0g, potassium chloride 0.5g, magnesium sulfate 0.5g, ammonium nitrate 1.50g, sulphur Sour manganese 0.2g, organosilicon 0.3g, pH 7.0-7.5,121 DEG C of sterilizing 30min;The constituent of every liter of fermentation medium are as follows: beautiful Rice flour 30g, yeast extract 3.5g, soybean powder 15g, disodium hydrogen phosphate 2.0g, potassium dihydrogen phosphate 0.2g, calcium carbonate 2.0g, chlorination Potassium 0.5g, magnesium sulfate 0.5g, ammonium nitrate 1.50g, manganese sulfate 0.2g, organosilicon 0.3g, pH 7.0-7.5,121 DEG C of sterilizings 30min;
(2) the bacillus amyloliquefaciens PHODG36 bacterial strain frozen is gone on LB solid medium, is cultivated at 38 DEG C 28h obtains activated strains;
(3) activated strains are seeded in LB liquid medium, are cultivated at 38 DEG C for 24 hours, shaking speed is 200rpm obtains primary seed solution;
(4) primary seed solution is transferred in seed culture medium according to percent by volume for 5%, dissolved oxygen amount is 20%, mixing speed 190rpm, 38 DEG C of culture 22h to thallus are logarithmic growth phase, obtain secondary seed solution;
(5) secondary seed solution is forwarded in fermentation medium according to percent by volume for 6%, dissolved oxygen amount is 18%, mixing speed 190rpm, 38 DEG C of culture 32h, until cell concentration >=6,000,000,000/mL, spore forming rate >=95% obtain The bacillus amyloliquefaciens PHODG36 fermentation liquid;
(6) soluble starch is added in the bacillus amyloliquefaciens PHODG36 fermentation liquid and is spray-dried, into Mouth temperature is 200 DEG C, and outlet temperature is 90 DEG C, obtains dry bacterium powder;
(7) the dry bacterium powder mixed with the dispersing agent and wetting agent, stirred, after air-flow crushing and cross 350 Mesh obtains the solid microbial to potato disease-preventing and yield-increasing.
Embodiment 3
The present embodiment provides the solid microbial of a kind of pair of potato disease-preventing and yield-increasing, raw material composition includes:
Bacillus amyloliquefaciens PHODG36 45g, dispersing agent 4g, wetting agent 4g, calcium carbonate 45g;
Dispersing agent 4g, lignin sulfonic acid sodium salt 1g, sanlose 1g, desugar sodium lignin sulfonate 1g, second two Alcohol single-butyl ether 0.2g, polyoxyethanyl alkyl ether 0.2g, neopelex 0.6g;
Wetting agent 4g, nekal 1.5g, fatty alcohol polyoxyethylene ether 1.5g, pelopon A 1g。
The preparation method of the solid microbial to potato disease-preventing and yield-increasing, comprising the following steps:
(1) constituent of every liter of seed culture medium are as follows: corn flour 30g, yeast extract 3.5g, soybean powder 15g, phosphorus Sour disodium hydrogen 2.0g, potassium dihydrogen phosphate 0.2g, calcium carbonate 2.0g, potassium chloride 0.5g, magnesium sulfate 0.5g, ammonium nitrate 1.50g, sulphur Sour manganese 0.2g, organosilicon 0.3g, pH 7.0-7.5,121 DEG C of sterilizing 30min;The constituent of every liter of fermentation medium are as follows: beautiful Rice flour 30g, yeast extract 3.5g, soybean powder 15g, disodium hydrogen phosphate 2.0g, potassium dihydrogen phosphate 0.2g, calcium carbonate 2.0g, chlorination Potassium 0.5g, magnesium sulfate 0.5g, ammonium nitrate 1.50g, manganese sulfate 0.2g, organosilicon 0.3g, pH 7.0-7.5,121 DEG C of sterilizings 30min;
(2) the bacillus amyloliquefaciens PHODG36 bacterial strain frozen is gone on LB solid medium, is cultivated at 37 DEG C For 24 hours, activated strains are obtained;
(3) activated strains are seeded in LB liquid medium, 22h is cultivated at 36.5 DEG C, shaking speed is 175rpm obtains primary seed solution;
(4) primary seed solution is transferred in seed culture medium according to percent by volume for 3%, dissolved oxygen amount is 15%, mixing speed 180rpm, 37 DEG C of culture 20h obtain secondary seed solution until thallus is logarithmic growth phase;
(5) secondary seed solution is forwarded in fermentation medium according to percent by volume for 5%, dissolved oxygen amount is 16.5%, mixing speed 180rpm, 37 DEG C of culture 28h, until cell concentration >=6,000,000,000/mL, spore forming rate >=95% obtain To the bacillus amyloliquefaciens PHODG36 fermentation liquid;
(6) calcium carbonate is added in the bacillus amyloliquefaciens PHODG36 fermentation liquid and is spray-dried, import temperature Degree is 175 DEG C, and outlet temperature is 70 DEG C, obtains dry bacterium powder;
(7) the dry bacterium powder mixed with the dispersing agent and wetting agent, stirred, after air-flow crushing and cross 325 Mesh obtains the solid microbial to potato disease-preventing and yield-increasing.
Experimental example
One, influence-potted plant experiment that 3 obtained solid microbial bacterial agent of the embodiment of the present invention grows potato plant
It is micro- in 3 obtained solid of the embodiment of the present invention of same amount difference bacteria suspension concentration by greenhouse pot culture test development Safety research of the bacteria agent to potato.It is different according to solid microbial and potato seed amount (4:150, w/w) ratio The solid microbial (1,500,000,000,5,000,000,000,10,000,000,000,20,000,000,000) of concentration and potato seed carry out Dressing, are with not Dressing Blank control (CK).Each processing dresses seed postposition in a cool and dry place, plant in flowerpot within second day (upper diameter 135mm × under Diameter 90mm × high 115mm), it is cultivated in the greenhouse, each concentration processing 10 basins of plantation, 2 pieces of every basin is being cultivated later Potato emergence rate and plant height are recorded at 30 days and 60 days, are calculated correction emergence rate according to the following formula, are emerged by correction The influence that rate and plant height two indices evaluation microbial bacterial agent grow potato plant, the results are shown in Table 1 and table 2.
Emergence rate (%)=(emergence quantity/20) × 100
Correct emergence rate (%)=(emergence rate/blank control emergence rate of processing) × 100.
The influence that table 1- solid microbial application dosage emerges to potato
As can be seen from Table 1,3 gained microbial bacterial agent dosage of the embodiment of the present invention is right in hundred million range of 15-200 Potato emergence has differences, and wherein dosage can be improved emergence rate in hundred million range of 15-50, with the increase of concentration, Emergence rate is on a declining curve, and when the microbial bacterial agent dosage is greater than 20,000,000,000, correction emergence rate is only 81.73%, And it is significantly lower than comparison medicament group, it can be deduced that, 3 obtained solid microbial bacterial agent dosage of embodiment is in hundred million range of 15-50 It inside can be improved emergence rate, and unsuitable too high or too low using concentration.
The influence that table 2- solid microbial application dosage grows potato plant
As can be seen from Table 2,3 obtained solid microbial bacterial agent dosage of the embodiment of the present invention is in hundred million range of 15-200 Interior to have facilitation to potato plant growth, solid microbial dosage is in hundred million range of 15-100, with it The increase of concentration, facilitation also gradually increase.
Two, the field trial of 3 obtained solid microbial bacterial agent of embodiment
1, experimental field basic condition
Test is respectively at 2018 and 2019 in the village Xi Zhangtou, the Handan in Hebei province Quzhou County township Huai Qiao, height above sea level 40m. Selection topography is flat, the relatively uniform plot of fertility is tested field.
2, for studying object and controlling object
It is potato for studying object, potato seed dosage is 150kg/667m2, kind is Holland 15;Controlling object is potato Verticillium wilt.
3, reagent agent
Solid microbial prepared by the embodiment of the present invention 3;Comparison medicament is 70% thiophanate methyl wettable powder (thiophanate methyl, Qingdao KYX Chemical Co., Ltd.), 3% Zhongshengmycin wettable powder (zhongshengmycin, Shenzhen Nuopuxin Agricultural Chemical Co., Ltd).
4, field plot trial designs
(1) 2018 year field trial
It is 1,500,000,000 gemma/gram test that solid microbial, which is prepared into concentration,.Three processing of test setting, tool Body is as follows, T1:4kg/ mus of seed dressings, and operating procedure is as follows: by seed potato stripping and slicing, guaranteeing 1-2 bud eye of each potato wedge, presses According to potato seed amount and microbial inoculum (150:4) ratio, it is uniformly spread to potato seed, stirs and stirs and evenly mixs, seed dressing uniform adhesion is made to exist In potato seed, it is placed in ventilating and cooling place;T2:150g thiophanate methyl+100g Zhongshengmycin+4kg talcum powder handles potato seed;T3: kind Potato is blank control without any processing.
Potato verticillium wilt grade scale is as follows:
0 grade: healthy plant;
The plant of 1 grade: 25% blade morbidity;
The plant of 2 grades: 25%-50% blade morbidity;
The plant of 3 grades: 50%-75% blade morbidity;
4 grades: 75% withered with the plant of blade morbidity or plant.
Different disposal plant incidence is investigated, calculates disease index and control efficiency, the results are shown in Table 3.
3 obtained solid microorganism formulation of table 3- embodiment evaluates the control efficiency and effect of increasing production of potato verticillium wilt (Handan Quzhou, 2018)
From table 3 it is observed that the microbial bacterial agent is 39.02% to the preventive effect of potato verticillium wilt, lower than control Medicament, but microbial bacterial agent mu rate of growth is higher than comparison medicament.Illustrate 3 obtained solid microorganism formulation pair of the embodiment of the present invention Potato has good effect of increasing production, and effect of increasing production is better than its protection effect.
(2) 2019 years field trials
It is 1,500,000,000,5,000,000,000,10,000,000,000,20,000,000,000 gemma/gram test that solid microbial, which is prepared into concentration,.Examination Test setting six processing, it is specific as follows, hundred million gemma of T1:15/gram microbial bacterial agent seed dressing;Operating procedure is as follows: by potato Potato seed stripping and slicing guarantees 1-2 bud eye of each potato wedge, and according to potato seed amount and seed dressing (150:4) ratio, it is uniformly spread to kind It on potato, stirs and stirs and evenly mixs, make seed dressing uniform adhesion in potato seed, be placed in ventilating and cooling place;Hundred million gemma of T2:50/gram it is micro- Bacteria agent seed dressing;Hundred million gemma of T3:100/gram microbial bacterial agent seed dressing;Hundred million gemma of T4:200/gram microbial bacterial agent mix Kind;T5:150g thiophanate methyl+100g Zhongshengmycin+4kg talcum powder handles potato seed;T6: potato seed is sky without any processing White control.Test result is as shown in table 4 and table 5.
3 obtained solid microorganism formulation of table 4- embodiment to the evaluation of the effect of increasing production of potato (Handan Quzhou plot A, 2019)
Processing Per mu yield (kg) Rate of growth (%)
3 obtained solid microorganism formulation (1,500,000,000) of embodiment 3220.55 8.87
3 obtained solid microorganism formulation (5,000,000,000) of embodiment 3495.69 18.18
3 obtained solid microorganism formulation (10,000,000,000) of embodiment 3856.47 30.37
3 obtained solid microorganism formulation (20,000,000,000) of embodiment 3251.63 9.92
First support+Zhongshengmycin 2871.89 -2.91
Blank control 2958.04 ——
As can be seen from Table 4, the 3 obtained solid microbial bacterial agent of embodiment has volume increase well to potato Effect;For solid microbial when concentration is between 1,500,000,000-100 hundred million, rate of growth is between 8.87%-30.37%;Wherein when Using concentration be 10,000,000,000 3 obtained solid microbial bacterial agent of embodiment effect of increasing production highest, rate of growth 30.37%, into One step illustrate 3 obtained solid microbial bacterial agent of embodiment to potato have good effect of increasing production, and effect of increasing production better than pair According to medicament.
3 obtained solid microorganism formulation of table 5- embodiment to the evaluation of the effect of increasing production of potato (Handan Quzhou plot B, 2019)
Processing Per mu yield (kg) Rate of growth (%)
3 obtained solid microorganism formulation (1,500,000,000) of embodiment 3220.55 14.75
3 obtained solid microorganism formulation (5,000,000,000) of embodiment 3495.69 21.70
3 obtained solid microorganism formulation (10,000,000,000) of embodiment 3856.47 28.04
3 obtained solid microorganism formulation (20,000,000,000) of embodiment 3251.63 22.81
First support+Zhongshengmycin 2871.89 -3.66
Blank control 2958.04 ——
As can be seen from Table 5, the resulting solid microbial of embodiment 3 has volume increase effect well to potato Fruit;For solid microbial when concentration is between 1,500,000,000-100 hundred million, rate of growth is between 14.75%-28.04%;Wherein when making With the effect of increasing production highest for the 3 obtained solid microbial bacterial agent of embodiment that concentration is 10,000,000,000, rate of growth 28.04%.
Three, the field trial of 3 obtained solid microbial bacterial agent of embodiment
1, experimental field basic condition
It tests and was carried out in 2019 in Hong-shi-la-zi type village, decorated archway township, Chengde City, Hebei Province Weichang Manchu and Mongolian Autonomous County. Experimental plot soil is sandy loam, and topography is smooth, and water and fertilizer condition is preferable.
2, for studying object and controlling object
It is potato for studying object, potato seed dosage is 150kg/667m2, kind is Holland 15;Controlling object is potato Verticillium wilt.
3, reagent agent
Solid microbial prepared by the embodiment of the present invention 3;Comparison medicament is 70% thiophanate methyl wettable powder (thiophanate methyl, Qingdao KYX Chemical Co., Ltd.), 3% Zhongshengmycin wettable powder (zhongshengmycin, Shenzhen Nuopuxin Agricultural Chemical Co., Ltd).
4, field plot trial designs
It is 1,500,000,000,5,000,000,000,10,000,000,000,20,000,000,000 gemma/gram test that solid microbial, which is prepared into concentration,.Examination Test setting six processing, it is specific as follows, hundred million gemma of T1:15/gram microbial bacterial agent seed dressing;Operating procedure is as follows: by potato Potato seed stripping and slicing guarantees 1-2 bud eye of each potato wedge, and according to potato seed amount and seed dressing (150:4) ratio, it is uniformly spread to kind It on potato, stirs and stirs and evenly mixs, make seed dressing uniform adhesion in potato seed, be placed in ventilating and cooling place;Hundred million gemma of T2:50/gram it is micro- Bacteria agent seed dressing;Hundred million gemma of T3:100/gram microbial bacterial agent seed dressing;Hundred million gemma of T4:200/gram microbial bacterial agent mix Kind;T5:150g thiophanate methyl+100g Zhongshengmycin+4kg talcum powder handles potato seed;T6: potato seed is sky without any processing White control.Test result is as shown in table 6.
3 obtained solid microorganism formulation of table 6- embodiment evaluates (Chengde Weichang) to the effect of increasing production of potato
As can be seen from Table 6, the resulting solid microbial of embodiment 3 increases potato with good diseases prevention Produce effect;For solid microbial when concentration is between 1,500,000,000-100 hundred million, rate of growth is between 10.55%-26.80%;Wherein When the preventive effect highest for the 3 obtained solid microbial bacterial agent of embodiment for the use of concentration being 5,000,000,000, control efficiency 52.31%;When making With the effect of increasing production highest for the 3 obtained solid microbial bacterial agent of embodiment that concentration is 10,000,000,000, rate of growth 26.80%.
It is good that the comprehensive test result of ground more than 2 years illustrates that 3 obtained solid microbial bacterial agent of embodiment has potato Preventing disease production-increasing effect, and effect of increasing production is better than comparison medicament.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, appoints What those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, answer It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of protection of the claims It is quasi-.

Claims (10)

1. the solid microbial of a kind of pair of potato disease-preventing and yield-increasing, which is characterized in that raw material components include:
Bacillus amyloliquefaciens PHODG36 10-80 parts by weight, auxiliary agent 2-16 parts by weight, filler 10-80 parts by weight.
2. the solid microbial according to claim 1 to potato disease-preventing and yield-increasing, which is characterized in that the auxiliary agent Including dispersing agent and wetting agent;The filler is one of calcium carbonate, soluble starch or talcum powder or a variety of mixtures.
3. the solid microbial according to claim 2 to potato disease-preventing and yield-increasing, which is characterized in that the dispersion The mass ratio of agent and wetting agent is (1-8): (1-8).
4. the solid microbial according to claim 2 to potato disease-preventing and yield-increasing, which is characterized in that the dispersion Agent is lignin sulfonic acid sodium salt, sanlose, desugar sodium lignin sulfonate, ethylene glycol monobutyl ether, polyoxyethanyl One of alkyl ether, neopelex or a variety of mixtures;
The wetting agent is one of nekal, fatty alcohol polyoxyethylene ether, pelopon A Or a variety of mixture.
5. the solid microbial according to claim 1 to potato disease-preventing and yield-increasing, which is characterized in that the solid The dosage form of microbial bacterial agent is wettable powder.
6. a kind of method for preparing the solid microbial described in claim 1 to potato disease-preventing and yield-increasing, feature exist In, comprising the following steps:
(1) the bacillus amyloliquefaciens PHODG36 bacterial strain frozen is gone into activation culture on LB solid medium, obtains activation bacterium Strain;
(2) activated strains are seeded in LB liquid medium, carry out shaking table culture, obtains primary seed solution;
(3) primary seed solution is transferred in seed culture medium, is expanded culture under agitation, obtain second level kind Sub- liquid;
(4) secondary seed solution is forwarded in fermentation medium, carries out fermented and cultured under agitation, obtain the solution Bacillus amyloliquefaciens PHODG36 fermentation liquid;
(5) filler is added in the bacillus amyloliquefaciens PHODG36 fermentation liquid, is spray-dried, obtain dry bacterium powder;
(6) the dry bacterium powder mixed with the auxiliary agent, stirred, after air-flow crushing and is sieved, being obtained described to Ma Ling The solid microbial of potato disease-preventing and yield-increasing.
7. the preparation method of the solid microbial according to claim 6 to potato disease-preventing and yield-increasing, feature exist In in step (1), the cultivation temperature is 36-38 DEG C, and the incubation time is 20-28h.
8. the preparation method of the solid microbial according to claim 6 to potato disease-preventing and yield-increasing, feature exist In in step (2), the cultivation temperature is 35-38 DEG C, and the incubation time is 20-24h, and the shaking speed is 150- 200rpm;
In step (3), the volume ratio of the primary seed solution and seed culture medium is (1-5): 100, the cultivation temperature is 36- 38 DEG C, the incubation time is 18-22h, and the dissolved oxygen amount is 10%-20%, and the mixing speed is 170-190rpm, is obtained The secondary seed solution in thallus be logarithmic growth phase.
9. the preparation method of the solid microbial according to claim 6 to potato disease-preventing and yield-increasing, feature exist In in step (4), the volume ratio of the secondary seed solution and fermentation medium is (4-6): 100, the cultivation temperature is 36- 38 DEG C, the incubation time is 24-32h, and the dissolved oxygen amount is 15%-18%, and the mixing speed is 170-190rpm;
Thalline quantity >=6,000,000,000/mL in the bacillus amyloliquefaciens PHODG36 fermentation liquid, spore forming rate >=95%.
10. the preparation method of the solid microbial according to claim 6 to potato disease-preventing and yield-increasing, feature exist In in step (5), the inlet temperature of the spray drying is 150-200 DEG C, and the outlet temperature of the spray drying is 50-90 ℃;
In step (6), the partial size of the solid microbial after the sieving is 300-350 mesh.
CN201910832008.7A 2019-09-04 2019-09-04 The solid microbial and preparation method of a kind of pair of potato disease-preventing and yield-increasing Pending CN110477021A (en)

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