160 results about "BREVIBACILLUS LATEROSPORUS" patented technology

Disclosed are a tobacco composite microbial fertilizer and its preparation method. The tobacco composite microbial fertilizer contains an active functional bacteria ingredient, an organic fertilizer ingredient and an inorganic composite fertilizer ingredient, wherein the active functional bacteria ingredient contains phosphate solubilizing bacteria-Bacillus megaterium powder, potassium bacteria-Bacillus mucilaginosus powder, tobacco growth-promoting rhizobacteria-Bacillus amyloliquefaciens powder and tobacco endophytic antagonistic bacteria-Brevibacillus laterosporus powder; and the organic fertilizer ingredient contains decomposed manure, a rapeseed cake fertilizer and straws. The invention also relates to a preparation method of the tobacco composite microbial fertilizer. The fertilizerprovided by the invention has advantages of an organic fertilizer, an inorganic fertilizer and a microbial fertilizer. According to the invention, utilization rate of the fertilizer can be raised, soil organic matters can be increased, tobacco plant rhizosphere microbial proliferation can be promoted, soil physical and chemical property and biological activity can be improved, comprehensive and balanced nutrients can be provided for the early growth of tobacco seedling, the occurrence of soil borne disease can be decreased, and flue-cured tobacco output and quality can be substantially improved.

The invention relates to a quick-acting multi-microorganism composite water flush fertilizer and a preparation method thereof. The quick-acting multi-microorganism composite water flush fertilizer is characterized by being prepared by mixing bacterial powder which is prepared by fermenting and culturing photosynthetic bacteria, pichiafermentanslodder, lactic acid bacteria, bifidobacterium, bacillus subtilis, bacillus licheniformis, brevibacillus laterosporus, bacillus megaterium, bacillus mucilaginosus, azotobocter chroococcum and actinomycetes. The density of the pichiafermentanslodder ACCC20319T in the quick-acting multi-microorganism composite water flush fertilizer is more than or equal to 2.0*10<8>cfu / g, and the densities of other bacteria are more than or equal to 2.0*10<9>cfu / g. The quick-acting multi-microorganism composite water flush fertilizer can improve the quality and yield of crops and shorten growth period of crops.

The invention relates to an environment-friendly composite microbial preparation, preparation thereof, and application thereof to aquaculture. An environment-friendly composite microbial water purifying agent comprises the following components in percentage by weight: 20 to 40 percent of bacillus subtilis, 10 to 20 percent of bacillus licheniformis, 10 to 15 percent of bacillus megaterium, 10 to 15 percent of brevibacillus laterosporus, 5 to 10 percent of bacillus pumilus, 5 to 20 percent of bacillus coagulans and 2 percent of biological activating agent. The high-concentration composite microbial preparation is prepared by screening eight strains of probiotics by simulating the physiological functions of normal microbial flora in an aquaculture environment and through scientific compatibility, so that division and cooperation amount the bacterial strains can be realized, a biological enhancement technology can be combined with an indigenous flora activating technology, complex problems in a culture water body can be solved completely, the using amount is small, the cost is low, and the competitive advantage is remarkable.

The invention relates to a novel microbial organic fertilizer with anti-actinomyces active compound bacteria and a preparation method thereof. The novel microbial organic fertilizer comprises a microbial inoculum and an organic fertilizer, wherein the microbial inoculum comprises colonies of Bacillus siliceous, Nocardia actinomyces, Bacillus subtilis, Bacillus thuringiensis, Brevibacillus laterosporus, azotobacter, Beauveria bassiana, Metarrhizium anisopliae, Trichoderma and Saccharomyces, and peptide proteins and rare-earth elements having unique effects on inhibiting wireworms and enhancing plant root system stress tolerancen; and the organic fertilizer comprises animal manure and plant fibers. The novel microbial organic fertilizer is prepared by fermenting the animal manure and plant fibers by using the microbial inoculum. The microbial organic fertilizer can quickly and effectively kill wireworm ova in soil, has strong effects on inhibiting and killing larvae and imagos, can continuously improve the growth environment of the plant root by using the growth of the microbial colonies and the stress tolerance of the peptide proteins, enables the plant to have strong roots, thick stems and green leaves, postpones the aging of the plant, and promotes prematurity and yield increase.

The invention discloses an enzyme-bacterium duplex straw decomposing agent and its preparation and application methods. The decomposing agent is made by mixing a composite microbial agent and a composite enzyme agent in a weight ratio of 3-4:1. The composite microbial agent includes Trichoderma viride, Aspergillus niger, Aspergillus oryzae, Brevibacillus laterosporus and a fused Saccharomyces cerevisiae, having a weight ratio of (1-2):(1-2):(1-2):(2-3):(2-3). The composite enzyme agent includes cellulase produced by the fermentation of Trichoderma reesei, hemicellulase produced by the fermentation of Bacillus subtilis, and ligninase produced by the fermentation of Pleurotus ostreatus, having a weight ratio of (1-2):(1-2):(1-2). The decomposing agent has a double straw degrading function, allowing more efficient and more thorough biological degradation, increasing the straw degrading speed to a higher extent and shortening degrading time, and can fully decompose crop straw to fields within about a week, without affecting the planting and transplanting of next-stubble crops.

The invention belongs to the field of fertilizer, and particularly relates to a three-resistant compound microbial fertilizer and a preparation method thereof. The three-resistant compound microbial fertilizer is prepared from plenty, medium and trace elements nitrogen, phosphorus, potassium, compound fertilizer, paraffin, associated nitrogen fixing bacteria, phosphorus solubilizing bacteria, potassium solubilizing bacteria and bacillus such as brevibacillus laterosporus, bacillus cereus, bacillus subtilis and bacillus licheniformis by compounding. The molten liquid paraffin is used for enveloping, and the molten paraffin doped with complex microbial inoculants is used for secondary enveloping. In the invention, live microbial products are added into the conventional compound fertilizer and provide direct or indirect nutrient elements to the plants through the movement of the microbial inoculants, while improving the soil fertility, activating the soil, enhancing the stress resistance of the crops, and solving the problems of soil fertility reduction, soil hardening, nutrient unbalance and lack of stress resistance of the crops; moreover, the invention has long period of validity, resists high temperature, acid-base and dryness, is nontoxic and harmless to people and livestock, and can prevent and control pests, deal with the pieces of paddy field without lodging and obviously increase the yield.

The invention provides a kind of Brevibacillus laterosporus (STP-B.latCGMCCNo.1119), the character follows this. G+, haulm shape, the shape is (0.4-0.5)*(2-2.5)mu. The spore adnation is from neutrality to sub-neutrality. The spore bursa will enlarge. Most of the spore is vertebra aitch, the remainder is disciform. VP-, ph value of culture fluid is 7.2, amylolysis-, gelatin dispergation-, decomposition casein+, katalase+, oxidase-, cirate -, dextrose aerogenesis-, dextrose acidgenesis+, L-arabinose acidgenesis-, xylose acidgenesis-, mannit acidgenesis+, azotate deocidisation+, methyl red+, pH5.7 growth+.

The invention discloses a microbial agent, a preparation method thereof, and an application thereof, which relate to the technical field of microbial agent. The microbial agent includes Streptomyces albidofuscus CGMCC No.13717, Paecilomyces lilacinus CGMCC No. 13898, Streptomyces longus and mixed bacteria, wherein the mixed bacteria includes yeast, Bacillus subtilis, Bacillus licheniformis, Bacillus amyloliquefaciens, Brevibacillus laterosporus and Trichoderma harzianum. Through combination of bacteria-fungi and the synergistic effect of multi-strains, the microbial agent has the advantages ofhigh activity of strains, high efficiency and multi-functions in treating waste water, waste gas or waste. In addition, the invention also provides a preparation method of a microbial agent, which adopts a double-layer immobilization (preliminary immobilization and secondary immobilization combination) method of the microbial agent to improve the stability of the microbial agent. The preparationmethod is simple in operation and easy to be popularized and applied in industry.

The invention belongs to the biotechnical field, and concretely relates to a peanut rhizosphere biocontrol bacterium, and a preparation method and an application thereof. The peanut rhizosphere biocontrol bacterium is an active strain LX12, the strain LX12 is identified as Brevibacillus laterosporus through 16SrDNA, and the strain is a bacterium screened from peanut rhizosphere soil, antagonistic to fungi, is preserved in China General Microbiological Culture Collection Center, and has a preservation number of CGMCC7420. The strain has an obvious antagonistic effect on pathogens, standoff tests show that the bacterium has a substantial inhibition effect on peanut diseases comprising peanut root rot, southern blight, scab, Phyllosticta glycine and the like, and pot and field tests show that the bacterium has an obvious control effect on the peanut root rot, southern blight, scab, Phyllosticta glycine and the like.

The invention discloses a strain of brevibacillus laterosporus SNB10 for inhibiting riziocotinia solani. The brevibacillus laterosporus SNB10 was preserved in China General Microbiological Culture Collection Center on May 17, 2017, and the preservation number is 14171. The brevibacillus laterosporus SNB10 has the following characteristics of high inhibition effect on the riziocotinia solani and good prevention and treatment effect on rice sheath blight when being prepared into a biocontrol aqueous solution. The brevibacillus laterosporus SNB10 can produce chitinase, is wide in antibacterial spectrum, and has a certain inhibition effect on various plant pathogenic fungi and pathogenic bacteria. The brevibacillus laterosporus SNB10 does not have toxicity and pathogenicity, is safe for human and livestock, environmentally friendly, high in stress resistance and stable and durable in bacteriostatic activity, and has potential application prospect. The brevibacillus laterosporus SNB10 provides a microbial strain and a pesticide product thereof, wherein the microbial strain is non-toxic for human and livestock and friendly for the ecological environment, and has a good effect of preventing the rice sheath blight.

The invention discloses a zinc thiazole-containing efficient sterilizing and production-increasing composition which is a sterilizing composition with an active component A and an active component B, wherein the active component A is selected from zinc thiazole and the active component B is selected from any one of the following compounds: brevibacillus laterosporus, bacillus subtilis, bacillus cereus, plant activator proteins, oligosaccharins, bacillus amyloliquefaciens, lentinan and bismerthiazol, and the weight ratio of the components A to B is 1: 100 to 100: 1. The composition disclosed by the invention has relatively high activity to various diseases on various crops and a remarkable synergic effect, expands the bacteriocidal spectrum and meanwhile, effective absorption of fertilizers by crops is increased. The composition is used for helping inferior parts of plants to grow well and adjusting the water balance in the crops, so that the composition has the characteristics of activating the metabolic system of the crops and promoting crop cells to increase and enhancing the root activity.

The invention provides a compound microbial fertilizer special for wheat and a preparation method thereof. The compound microbial fertilizer comprises a microbial bacteria liquid and an organic inorganic composite fertilizer, and comprises, by weight, 5-15% of ammonium sulfate, 10-20% of urea, 5-13% of diammonium phosphate, 15-23% of potassium chloride, 35-40% of turf, 5-10% of composite microbial bacteria liquid, 0.2-0.7% of white copperas zinc sulfate, 0.2-0.7% of borax, 0.2-0.7% of ferrous sulphate and 0.2-0.7% of manganese sulfate. The composite microbial bacteria liquid is mixed from new brevibacillus laterosporus and bacillus subtilis bacteria liquid. The special fertilizer can solve problems of excessive chemical fertilizer application, weak pertinency and unbalanced nutrient of an existing fertilizer for wheat, and a problem of unstable application effect of an existing microbial fertilizer, and can increase yield obviously after application.

The invention discloses a Brevibacillus laterosporus strain N106-2 of which the collection number is CGMCC No.8482. The strain has strong indoor flat inhibiting actions on multiple plant pathogenic fungi (fussarium wilt of tomato, root rot of chili, gray mold of tomato, Rhizoctonia solani, black spot of cabbage, anthracnose of pear and black rot of pear) and plant pathogenic bacteria (bacterial wilt of tomato, fire blight of pear and streak of rice); and the strain can secrete proteinase, cellulase and surfactant antimicrobial related substances with hemolytic activity. The Brevibacillus laterosporus can be prepared into a biocontrol aqua; the biocontrol aqua has certain preventing and treating effects on fussarium wilt of tomato, fusarium rot of chili, anthracnose of pome and eyespot of pome. The Brevibacillus laterosporus N106-2 has the advantages of no toxicity, no pathogenicity and high safety for human and livestock, is environment-friendly, is a useful resource for development of microbial pesticides, and has potential application prospects.

The invention provides a fertilizer for cultivation of tobacco. The fertilizer consists of the components by weight as follows: 0.5-1.5 parts of a composite microbial agent, 3-7 parts of an activating agent, 3-7 parts of binder, and 86-92 parts of nitrogen, phosphorus and potassium fertilizer. The effective components of the composite microbial agent are Bacillus licheniformis, Bacillus pumilus, Brevibacillus laterosporus, Bacillus megatherium and Silicate bacteria. The invention further provides a preparation method and an application of the fertilizer. The product provided by the invention can remarkably improve crumb-structure of soil for cultivation of tobacco, and microflora distribution and micro-environment of the soil. A plenty of derivatives are generated, thereby chelating or blocking damage of heavy metals, and absorption and assimilation of tobacco to nutrient elements are improved, the drought resisting and disease resisting abilities of tobacco are enhanced, damage of diseases and insects caused by continuous cropping of tobacco in successive years are effectively prevented, and in particular, tobacco mosaic virus and brown spot disease are specially prevented and treated. According to the invention, the raw materials are low in cost and easy to obtain and the preparation and using methods are simple and easy to operate.

The invention belongs to the field of agricultural fertilizers and particularly relates to coated microbial bacterial fertilizer particles and a preparation method thereof.The coated microbial bacterial fertilizer particles include pill cores and coating layers, wherein the pill cores use duck manure, monosodium glutamate leftovers, furfural residues, corn cobs and plant ash as fermentation base materials, use bacillus subtilis, brevibacillus laterosporus, streptomyces microflavus, paecilomyces lilacinus, bacillus licheniformis and bacillus megatherium for aerobic fermentation and are obtained through granulation; the coating layers use agaricus bisporus residues, distillers' grains, traditional Chinese medicine residues, humic acid, guar gum and diatomite as base materials, an EM bacterial solution is added for fermentation, and then the mixture is mixed with sugar.The number of living bacteria of the coated microbial bacterial fertilizer particles is 62 millions CFU / g or above, the organic matter content is, by weight, 58.5% or above, pH is 7.1-7.2, and the content ratio of N to P to K is 2.5-3.0 to 1 to 1.8-2.1.The raw materials are easy to obtain, the preparation method of the coated microbial bacterial fertilizer particles is simple in operation, and the fermentation process is easy to control.

This invention provides compositions of Bacillus strains and methods for using such compositions to inhibit the activity and / or growth of fungal pathogens of plants. In one embodiment, this invention provides a composition comprising Bacillus bacteria selected from the group consisting of Brevibacillus laterosporus strain CM-3, Brevibacillus laterosporus strain CM-33, Bacillus amyloliquefaciens BCM-CM5, Bacillus licheniformis ATCC-11946, Bacillus mojavensis BCM-01, Bacillus pumilus NRRL-1875, Bacillus subtilis 10 DSM-10, Bacillus subtilis NRRL-1650, Bacillus megaterium BCM-07, Paenibacillus polymyxa DSM-36, Paenibacillus chitinolyticus DSM-11030, and combinations thereof. In another embodiment, this invention provides a method for preparing a bacterial composition comprising one or more Bacillus strains by growing Bacillus strain bacteria until the bacteria form spores, collecting said spores, and formulating said composition.

The invention provides a method for producing a microbial fertilizer by using kitchen waste. The microbial fertilizer contains one selected from the group consisting of Bacillus amyloliquefaciens, Bacillus licheniformis, Bacillus mucilaginosus, Bacillus megatherium, Brevibacillus laterosporus, Bacillus thuringiensis, Bacillus subtilis and Streptomyces microflavus or mixed bacteria of two or more selected from the group. The method for producing the microbial fertilizer comprises the following steps: removing foreign matters in the kitchen waste, heating the kitchen waste, taking out grease, crushing the rest kitchen waste, adding enzyme for enzymolysis, putting the kitchen waste having undergone enzymolysis into a fermentation tank, performing sterilizing, inoculating one or more culturedstrains, performing fermenting with a pure bacterium or mixed bacteria to obtain a single-bacterium liquid microbial fertilizer or a composite-bacteria liquid microbial fertilizer, and adsorbing the liquid bacterial fertilizer with a carrier to obtain the solid microbial fertilizer. The microbial fertilizer is produced by utilizing the kitchen waste, so production cost is remarkably reduced, and the pollution of the kitchen waste to the environment can be effectively reduced.

The invention discloses a nano microbial fertilizer, comprising 0.2-0.25% of brevibacillus laterosporus spore powder, 0.2-0.25% of bacillus megaterium spore powder, 30-35% of organic fertilizer, 40-45% of organic matrix, 2-2.5% of nano material and 20-25% of carrier. Meanwhile, the invention further provides a preparation method of the nano microbial fertilizer. The nano microbial fertilizer disclosed by the invention can be used for improving the structure of soil, has an obvious repair effect on contaminated soil.

The invention provides a compacted soil improvement method, which comprises the following steps: the first step, turning over the compacted soil with a shallow tiller and breaking the soil block with a rotary tiller; The soil improver, and then use the deep tiller to bury the soil improver into the soil; the third step, apply the organic compound fertilizer on the soil surface and use the shallow tiller to bury the organic compound fertilizer into the soil; the fourth step, in the soil Sprinkle the soil conditioner on the surface and cover with 2-3 cm crushed soil, then apply organic compound fertilizer, and finally cover with a layer of 3-5 cm crushed soil. The compacted soil improvement method has fewer steps, less workload and is easy to operate. Brevibacillus lateralosporus and Streptomyces freundii in the soil conditioner used in the compacted soil can multiply rapidly in compacted soil, combined with potassium fulvic acid, can improve Soil aggregate structure, loose soil, improve soil water and fertilizer retention capacity, so as to quickly improve the growth of crops in compacted soil.

The invention discloses a Brevibacillus laterosporu with function in quickly decomposing nitrite nitrogen and bacteriostasis function and an application thereof. The screening strain is Brevibacillus laterosporu YB-02, the strain collection number is CGMCC-No. 9757. The strain provided by the invention has a capacity of effectively decomposing nitrite nitrogen in water, has cholate resistance and trypsin resistance, and further has higher inhibiting effects to mariculture pathogenic bacteria like vibrio splendidus, shewanella smarisflavi and edwardsiella tarda. Therefore, the strain provided by the invention can be used for developing probiotics products for mariculture water purification and bacterial inhibition, the antibiotics abuse is avoided, the fishing disease is prevented and treated effectively, the quality and yield of marine food products are improved; the strain has effective, fast and safe water purification effect to acute water pollution, and therefore, the strain is wide in application prospect.

The present invention relates to a microbial bacteriocide, its preparation method and application. Said invented production strain is Brevibacillus laterosporus G4. Said invented microbial bacteriocide is prepared by adopting conventional shake-flask fermentation process, and its solid culture medium formula includes beef extract 3g, peptone 8g, sodium chloride 4g, agar 18g and water 1000 ml, pH 7.5 and its liquid fermentation culture medium formula contains 0.2-0.4% of beef extract, 10-20% of soybean care powder, 0.5-2% of fish powder, 0.3-0.5% of sodium chloride, pH 7-8 and the rest is water. Said invention has good bactericidal action for two plant pathogenic bacteria of fusarium and rhizoctonia.

The invention discloses an organic fertilizer fermentation inoculant and application. The inoculant is composed of a primary fermentation inoculant body and a secondary fermentation inoculant body. The primary fermentation inoculant body comprises bacillus subtilis, bacillus licheniformis, trichoderma viride, aspergillus oryzae, pseudomonas, trichoderma koningii, geotrichum candidum, long spiny shells, ascomycetes, thermomyces lanuginosus and thermobifida fusca. The secondary fermentation inoculant body comprises halophilic bacteria, alkalophilic bacteria, azotobacter chroococcum, bacillus megatherium, streptomyces griseus, bacillus thuringiensis, brevibacillus laterosporus and bacillus mucilaginosus. Time for fermenting organic fertilizer with cow dung as the raw material can be effectively shortened, and diseases and insect pests in the fertilizer can be eliminated. Meanwhile, alkalophilic bacteria and bacillus thuringiensis are added so that the fermentation inoculant can adapt to saline-alkali soil and can prevent diseases and insect pests of plants, and the prepared organic fertilizer can improve the soil structure, reduces the salt content and the pH value in soil, improves soil fertility and is particularly beneficial to improvement of saline-alkali soil.

The invention provides a method for preparing tailor-made ecological BB fertilizer, comprising the following steps: (i) innocently treating the organic waste with biological organic fast corroding agent to make it converse to available organic matter; (ii) mixing the bacterial comprising laterosporin bacillus brevis of heat-resistant, saly-resistant, drought-resistant and strong stress with organic matter innocent treated for granulation, preparing organic biological granule with water content more than 8%; (iii) measuring every soil sample to determine the proportion of needed inorganic nutrient and organic biological granule; (iv) mixing the organic biological granule with inorganic nutrient according to determined proportion. The invention also provides the tailor-made ecological BB fertilizer prepared with above method comprising organic matter, bacterial comprising laterosporin bacillus brevis and inorganic nutrient, the said organic matter content is above 25 weight %; the said viable bacteria number is above 20 million per g; the inorganic nutrient content is above 18 weight %, and the proportion can be adjusted according to the different need of soil and plant.

The invention discloses a bacterial inhibition type water purifier for marine aquaculture and a preparation method thereof. The bacterial inhibition type water purifier is prepared from filtering and drying a fermentation solution containing bacillus subtilis YB-01 CGMCC-No.9756 and brevibacillus laterosporus YB-02 CGMCC-No.9757. The strain of the water purifier is bacillus separated from a seawater source and has an excellent water purification effect and bacterial inhibition effect; the water purifier is a mixture containing bacteria and spores; the water purifier is long in preservation period and can quickly grow after entering the water; especially, the water purifier is regularly sprayed in seedling periods and developing periods of stichopus japonicas, turbot and fugu rubripes; the harmful materials such as ammonia nitrogen, nitrite and hydrogen sulfide in the marine aquaculture water can be quickly degraded; the heavy metal ions in bottom mud can be efficiently adsorbed; deterioration, acidification and smelly bottom mud of the water can be avoided; the growth of pathogenic bacteria in the marine aquaculture can be inhibited; diseases can be effectively prevented.

The invention discloses a composite bacillus cottonseed meal fermenting agent and a preparation method thereof. The preparation method comprises the following steps of: performing expanding culture on strains of bacillus subtilis, bacillus natto, brevibacillus laterosporus and bacillus coagulans by a liquid fermentation method; inoculating into a fermentation tank to ferment; adding a carrier to adsorb; drying at low temperature; and mixing in a ratio to prepare the composite bacillus cottonseed meal fermenting agent, the total microbial content of the fermenting agent is more than or equal to 100*108 CFU / G. The composite bacillus cottonseed meal fermenting agent can effectively inhibit growth of miscellaneous bacteria in the fermentation process of the cottonseed meal, reduce the free gossypol content of the cottonseed meal and increase the protein content and the free amino acid content of the cottonseed meal, and has the characteristics of simple preparation process, stable and reliable production quality, low cost and the like.

The invention relates to a special-purpose fruit tree biological organic fertilizer and a preparation method thereof. The special-purpose fruit tree biological organic fertilizer is characterized by using 50%-65% (in percentage by weight) of fermented and cured organic matter as the material, wherein the organic matter is mixed with 10%-20% of powdered carbon, 5%-20% of shell powder, 1%-5% of seaweed meal, 1%-5% of chitin and 0.1%-0.2% of ocean brevibacillus laterosporus, bacillus subtilis and sphingomonas mixture powder (the weight ratio of the three bacteria being 1:1:1, and the number of effective microorganisms in each kilogram of the materials is 1012 or more). The special-purpose fruit tree biological organic fertilizer disclosed by the invention can be used for continuously supplying nutrients required by growth and development of the plant at each stage from the aspects including water retention, nutrition slow release and the like, can be used for improving the soil physical and chemical properties and promoting formation of soil aggregates. Most of materials used by the special-purpose fruit tree biological organic fertilizer are aquaculture by-products, so that the waste is changed into valuable, the environment-friendly effect is obvious and perpetual harms are not caused to the soil.

The invention relates to a method for preparation biological bacterium for preventing and curing pseudo-ginseng root rot and its application, wherein the preparation process comprises the steps of microbiological bacterial culture, microorganism mass propagation and bacterium fabrication. The microorganism employed is Brevibacillus laterosporus G4 bacterial strain, which was preserved in Wuhan Univ's CCTCC with the collection number of CCTCC No:M203045.

The present invention discloses a brevibacillus laterosporus-containing efficient pesticide composition, wherein effective active components comprise an active component A and an active component B, the active component A is selected from brevibacillus laterosporus, and the active component B is any one compound selected from amino polysaccharide, chitosan, plant activator protein, lentinan, glucosan and amino-oligosaccharin, and a weight ratio of the active component A to the active component B is 1:300-500:1. The composition provides high activity for a plurality of plant diseases on a plurality of crops, and has characteristics of stimulation of crop root system development, promotion of crop growth, increase of yield, and improvement of crop quality.

The present invention relates to a brevibacillus laterosporus-containing antibacterial yield increase composition, which is an antibacterial yield increase composition comprising effective active components such as an active component A and an active component B, wherein the active component A is selected from brevibacillus laterosporus, and the active component B is any one compound selected from benzylaminopurine, brassinolide, indole acetic acid, triacontanol and gibberellic acid. The composition provides high activity for a plurality of plant diseases on a plurality of crops, and has characteristics of significant synergy effect, bacterial killing spectrum expanding, increase of effective fertilizer absorption of crops, helping of good growth of crop inferior parts, and regulation of water balance in crops so as to activate metabolic systems of crops, and promote crop cell growth and root system activity strengthening.

The invention relates to the field of biologically-derived insecticidal preparations, in particular to a complex microbial inoculant for controlling root-knot nematodes of crops and a preparation method of the complex microbial inoculant. The complex microbial inoculant for controlling the root-knot nematodes of the crops and the preparation method of the complex microbial inoculant are characterized in that microorganism is composed of bacillus subtilis, bacillus sphaericus, pseudomonas fluorescens, bacillus thuringiensis, brevibacillus laterosporus, paenibacillus polymyxa, pasteurella pneumoniae, paecilomyces lilacinus, verticillium chalamydosporium, beauveria bassiana and aspergillus fumigatus. The novel multi-bacteria same-pot fermentation technology is adopted, the formula is clever and reasonable, the disadvantages of mutual antagonism in the liquid deep fermentation culture of compound bacteria are eliminated, the compound bacteria has high activity, and the complex microbial inoculant for controlling the root-knot nematodes of the crops has a good control effect on tomatoes and cucumber root-knot nematodes.