621 results about "Damping off" patented technology

A microbial preparation for preventing and treating the bacterial wilt, damping-off, etc of plant and promoting growth of palnt contains paenibacillus polymyxa or the fermented liquid obtained by culturing the bacterium.

The present invention relates to a composition for preventing at least one plant disease resulted from infection of plant pathogens and a method for preparing the same. Particularly, the composition contains extract of at least one plant selected from the group consisting of Coptis chinensis Franch., Phellodendron genus plant, Sanguinaria canadensis and Chelidonium majus var. asiaticum which are natural plants having anti-plant pathogen activity or berberine which is purified therefrom. The composition of the present invention can be effectively used for preventing disease pathogens such as plant powdery mildew, anthracnose of pepper, damping-off of cucumber and gray mold rot of strawberry resulted from infection of plant pathogens such as Colletrotrichum gloeosporiodes, Pythium ultimum or Botrytis cinerea. For an alternative method for preparing the composition comprising berberine and/or derivatives thereof, the present invention provides various optimal culture condition and two phases cultivation methods using Phellodendron genus plant.

The invention discloses bacillus subtilis NB12, as well as a culture method and an application thereof. The strain with a preservation number of CGMCC No.5383 is preserved in China General Microbiological Culture Collection Center on October 24, 2011. Researches prove that: the strain has strong inhibition effects to rhizoctonia solani, colletotrichum musae, pyricularia grisea, fusarium graminearum, fusarium oxysporum f.sp.cubense, peronophythora litchi, ustilago scitaminea, fulvia fulva, xanthomonas oryzae and xanthomonas oryzae pv.oryzicola, is a broad-spectrum antagonistic strain, can be used for prevention and control of various plant diseases, has a particular good prevention and control effect to the rice sheath blight and damping off in seedling phase of cowpea, has the advantages of harmlessness to human and livestock, greenness and safety, good environment compatibility, difficult resistance generation and the like, can be used for commercial development, and has a wide application prospect.

The invention provides a cold region paddy seedling culture matrix and relates to a paddy seedling culture matrix, and the cold region paddy seedling culture matrix is used for solving the problems of slow seedling emergence of the earlier stage, more irrigation times, serious damping off during the mid-to-late stage of seedling growing and obvious fertilizer removal during the later stage of the seedling when the existing paddy seedling culture matrix is applied in paddy cultivating areas of cold regions. The cold region paddy seedling culture matrix is prepared from edible fungus residues, coal ash, grass carbon, vermiculite and perlite, or ground straw, the coal ash, the grass carbon, the vermiculite and the perlite. The paddy which uses the cold region paddy seedling culture matrix does not need disease preventing and weeding during the seedling culture period, only needs to be irrigated, is convenient to operate, time-saving and labor-saving, has high quality seedlings and stronger stress resistance, no damping off, bacterial wilt and other diseases are caused during the seedling stage, and the seedlings are short and strong, have wide leaves and bright green color. The cold region paddy seedling culture matrix is applied in the paddy field.

The invention provides bacillus amyloliquefaciens SZ-60 which is characterized in that the collection number is CGMCC No.8277. The bacterial colony formed by the strain on a beef-extract peptone (NB) medium by virtue of single-cell reproduction is irregular with oyster white color, slight upheaval at the center and wet and semitransparent surface; the microscopy is of a rod shape, and the size is (0.3-0.4)*(3.2-3.3)microns; with flagella, G- and spores, the strain can grow on the beef-extract peptone (NB) medium containing 2-5% of NaCl; the formula of the beef-extract peptone (NB) medium contains 3.0g of beef extract, 10.0g of peptone, 5.0g of NaCl, 17g of agar and 1,000ml of water, and the pH is 6.8-7.2. The bacillus amyloliquefaciens realizes a remarkable antagonistic action on the main pathogenic bacteria causing ginseng root rot, epidemic diseases, sclerotinia sclerotiorum, cylindrocarpon destructans, black spot and damping off. The invention also provides an application of the bacillus amyloliquefaciens SZ-60 in preventing plant fungal diseases, or application in preparing a microbial preparation for preventing plant fungal diseases.

The invention relates to a bacillus subtilis preparation for preventing and controlling soil-borne diseases, as well as a preparation method thereof. The bacillus subtilis preparation is prepared by taking the thalli and metabolites of bacillus subtilis B579 with preservation number of CGMCC No.2270 as an effective active constituent which are matched with agriculturally acceptable carrier and a heat-resistant protective agent; the thalli content of the effective active constituent is 8 to 80 billion thalli per gram; and the mass content of the heat-resistant protective agent is 3 to 5 percent. The bacillus subtilis preparation can effectively prevent and control cucumber drooping diseases, cucumber wilt, eggplant root rot, eggplant damping-off, pepper blight, tomato basal stalk rot, grape botrytis cinerea and banana anthracnose. The bacillus subtilis preparation has a control efficiency more than 70 percent, has obvious effect of promoting plant growth, and is characterized in high efficiency, wide antimicrobial spectrum, simple use, low cost, no environmental pollution and improvement on the micro-ecological environment of soil.

The invention provides a composite microbial inoculant for controlling plant continuous-cropping diseases, which comprises trichoderma harzianum, bacillus subtilis, and gliocladium roseum, and also comprises phosphate-solubilizing bacteria and potassium-solubilizing bacteria; the accession number of the trichoderma harzianum strain is CGMCC NO. 7861; the accession number of the bacillus subtilis strain is CGMCC NO. 7850; the accession number of the gliocladium roseum strain is CGMCC NO. 9008. The invention also provides a preparation method and an application of the composite microbial inoculant. Through the selection of high-efficient bacterial strains such as disease-preventing trichoderma, bacillus subtilis, gliocladium roseum, phosphate-solubilizing bacteria and potassium-solubilizing bacteria, the composite microbial inoculant of the invention promotes the growth of crops, improves the utilization rate of fertilizers, enhances the stress resistance such as disease resistance and the like, improves the quality of crops, and can control diseases such as root rot, verticillium wilt, damping off, botrytis, epidemic diseases, powdery mildew, sclerotinia rot, seedling-stage damping off, and the like.

The invention discloses a bacillus atrophaeus strain DPPG-28 and an application in crop disease control, and belongs to the field of agricultural biotechnology. The strain is separated from soil of drip irrigation fields with damping off in tomato processing production areas, and has an accession number of CGMCC No. 9394. The strain can be used for biological control of crop pathogens such as rhizoctonia solani, pythium aphanidermatum, alternaria solani, phytophthora capsici, tomato scab fungi, and the like; the control effects on tomato damping off, capsicum early blight, and cotton damping off reach respectively 74.17%, 66.83%, and 70.12%; the strain can significantly improve the crop germination rate, plant height, fresh weight, and dry weight at the seedling stage. The strain of the invention has high-efficient wide-spectrum germicidal activity, and has wide application prospects in biocontrol agents.

The invention provides a Sequoia sempervirens seed seedling culture method, comprising the following steps: processing seeds, accelerating germination, preparing a medium, sowing, managing in a young seedling period, preparing nutritive soil, transplanting, managing after transplantation and the like. Through carrying out the step of accelerating germination before sowing, light, temperature, moisture and air required for the germination of Sequoia sempervirens seed are provided, and seed germination percentage and neatness are improved; soilless seedling culture is adopted to effectively solve the problem of damping-off disease in seedling stage; and the proper nutritive soil and nutrient solution are reasonably applied, and diseases are effectively prevented, thereby achieving higher planting percent, and guaranteeing seedling quality.

The invention belongs to the technical field of fertilizers and particularly relates to an anti-disease composite microbial fertilizer specially-used for American ginseng and also relates to the preparation method of the microbial fertilizer. The microbial fertilizer includes furfural residue, cassava residue, decayed cow dung, lignite humic acid, plant ash, tea residue, clay, mineralized yellow-brown potassium humate and a composite probiotic agent. The microbial fertilizer is balanced in nutrients and is abundant in microelements and can effectively increase productivity and improve fertility level of soil. The added composite probiotic agent can significantly inhibit the main diseases of the American ginseng, such as cylindrocarpon destructans diseases, root rot, damping off, black spot and the like. By means of the composite microbial fertilizer, the yield of the American ginseng is increased by 30-35% effectively and diseases rate is reduced by more than 90%. The fertilizer, when being used for long time, can effectively improve soil. The fertilizer is long-acting in fertilizer efficiency, achieves the effects in the whole growing period of American ginseng, and also has the effect of improving the quality of the American ginseng.

The invention relates to a bactericide composition for preventing and controlling cotton disease. The bactericide composition is a composition of wettable powder, suspending agent, water dispersible granule or seed coating, which is prepared from fluoride ether bacteria amide, thiram and auxiliaries of wetting agent, dispersing agent, filling agent and the like. The fluoride ether bacteria amide and the thiram are mixed by the proportion of 1:4 to 4:1 and the combination of two bactericides with different bactericidal action mechanisms not only plays an obvious synergistic effect for cotton blight, but also is helpful for postponing the drug resistance of pathogenic bacteria. The bactericidal range is wide. The bactericide composition provided by the invention is applicable to prevention and control of various fungal diseases of crops, such as cotton blight, cotton damping off, cotton anthracnose, vegetable root rot and damping off and strawberry blight.

The invention discloses a biological bacterium prevention compound agent used for preventing and curing a soil-borne disease of the crops, which is characterized in that the contents and weight ratios of all components are: 7 to 9 of dried grass fungus gemma bacillus fermentation broth, 7 to 9 of green wood mold sporule powder, 60 to 80 of diatomaceous earth or light calcium carbonate, 1 to 3 of potassium acid phosphate and 2 to 5 of sodium lignin sulfonate. Through the ferment cultivating to the dried grass fungus gemma bacillus, the fermentation broth is obtained, and the fermentation broth with certain bacterium content is compounded with the green wood mold sporule powder, a microorganism compound agricultural drug is made based on a carrier of diatomaceous earth and by adding suitable nourishing elements. The dried grass fungus gemma bacillus and the green wood mold sporule powder form an effect of mutual predominance compensation. The invention is used for preventing and curing soil-borne diseases, such as a damping off disease, a stand drying disease, a root corrosion disease and a blast which are caused by corrupting leaf mold and fusarium. The product is harmless and is steady and durable in drug effect.

The invention discloses a sterilizing blend, comprising hymexazol and mefenoxam with parts ratio by weight being 2.5 to 25:0.5 to 5. The invention has advantages of good control effect to rice wilt in seedling stage, low cost of agricultural chemicals, capability of delaying generation of resistibility, non-pollution to environment as both hymexazol and mefenoxam being low-toxic pesticide, and good control effect to blight, damping-off diseases and root rot diseases of various vegetables and fruits.

The invention discloses Bacillus subtilis strain HMB26553 (Bacillussubtilis), the strain is preserved in China General Microbiological Culture Collection Center, and the preservation number is CGMCCNo.13211. The present invention also discloses a microbial agent produced by use of the strain and application thereof in the prevention and control of plant diseases such as cotton damping-off and the like. The Bacillus subtilis HMB26553 has high control efficiency on the cotton damping-off, the average control efficiency is above 90%; the microbial agent has good effect perdurability, and has no environmental pollution problems; in addition, the HMB26553 has a wide antibacterial spectrum, and has a good inhibitory effect on cotton rhizoctonia solani kuh, cotton verticillium dahlia, cotton Fusarium oxysporum, tomato botrytis cinerea and cucumber Corynespora cassiicola.

The invention discloses a pesticide composition containing picoxystrobin and amides. The pesticide composition comprises an active component A and an active component B, wherein the active component A is selected from picoxystrobin; the active component B is selected from any one of the following bactericides: dimethomorph, metalaxyl, Metalaxyl-M, BENALAXYL, Benalaxyl-M, Flutolanil and Pyrimorph; and the weight percentage of A to B is 1%-80%:1%-80%. The composition can prevent and treat a plurality of crop diseases, has a notable synergetic action, enlarges the insecticidal spectrum, and is of high activity on downy mildew, epidemic disease, late blight, Leptosphaeria maculans, Pernophythora litchi, phytophthora, white rust, foot rot, Phytophthora parasitica, Pythium debaryanum, soft rot, damping off, banded sclerotial blight, snow mold, Leaf blight, Septoria nodorum, brown blotch or powdery mildew. The consumption of the pesticide is reduced, the residual quantity of the pesticide on crops is decreased and environmental pollution is abated.

The invention discloses a Bacillus amyloliquefaciens strain PHODG36 which has been preserved in the China General Microbiological Culture Collection Center and has the preservation number of CGMCC No.13041. The invention further discloses a microbial bacterial agent produced from the PHODG36, and discloses application of the PHODG36 to degradation of inorganic phosphorus, promotion of crop growth and prevention and treatment of cotton diseases. The strain PHODG36 has a good inorganic phosphorus degrading effect and high fertilizer efficiency; meanwhile, the strain is good in bacteria restraining effect and wide in antibacterial spectrum and has a quite good restraining effect on three pathogenic bacteria diseases of cotton verticillium wilt, wilt and damping off; in addition, a microbial bacterial manure is safe to human and livestock and is free of environment pollution problem; the bacterial agent is simple in method, low in cost and easy to use.

The invention discloses a stress-resistance and health-care mycorhiza microbial inoculum of Pinus massoniana and an application method of the stress-resistance and health-care mycorhiza microbial inoculum. The stress-resistance and health-care mycorhiza microbial inoculum is prepared by compounding a mycorhiza microbial inoculum and plant hormone naphthylacetic acid or benzpyrole-3-acetic acid; and the mycorhiza microbial inoculum is formed by fermenting Lactarius akahatsu or Lactarius hatsudake through a solid fermentation culture medium. The stress-resistance and health-care mycorhiza microbial inoculum is used for carrying out slurry dipping treatment on seedling root systems or is buried into Pinus massoniana forest soil in a forestation process, so that not only can root-taking and growth of the Pinus massoniana be increased, but also the tree vigor is enhanced and the stress resistance is improved; and therefore Pinus massoniana defoliation, seedling damping-off and Pestalotiopsis apiculatus are prevented from happening.

A seed-coating agent is prepared from the nimbin extracted from the seeds of min tree and the berberine extracted from berbrioes plant through compounding. It can be used to prevent and elimiante underground pests, damping-off, white rot, etc.. Its advantages are high effect, lwo poison and no pollution.

The invention provides a Trichoderma wettable powder and a preparation method thereof. The Trichoderma wettable powder is compounded from 10-10000 million CFU/g of Trichoderma, 1-40% of dispersant, 1-40% of wetting agent and 5-98% of filler. The preparation method comprises the following steps: pulverizing Trichoderma spore powder at low temperature, commonly pulverizing other assistants, and evenly mixing the Trichoderma spore powder and other assistants. The Trichoderma wettable powder is mainly used for preventing and treating soil-borne disease of vegetables and flowers, has favorable effect of preventing root rot of flowers, and seedling blight and cataplexis of vegetables, has the advantages of low toxicity and no residue, and can be used for producing organic food.

Disclosed is a method for cultivating pigment marigolds in the sand of a high and cold region. The method includes the steps that ground temperature rises and watering is sufficient 10 days before sowing; sowing is carried out on a fine day without wind, well-prepared soil is sieved by a sieve to cover a seedbed, a disinfectant is sprayed, a pesticide-clay mixture is scattered, and the seedbed is covered by straw; foliage top-dressing is conducted through DAP adding with water in the seedling stage, ventilation is achieved in a seedling growing greenhouse, films are uncovered, seedling exercising is conduced, seedling bacteria are sprayed so that damping-off can be prevented, soil insects can be trapped and killed by the way that phoxim is stirred and mixed with fried bran, and 200ppm of chlormequat chloride is sprayed for treating moderate seedling growth; compound fertilizer water is watered for facilitating growth, and the seedling age is 45-50 days for transplanting; field planting is carried out, the greenhouse is well built, soil preparation is completed, base fertilizer is fully applied, standard moisture in the soil is arranged according to the soil moisture width of 90cm, ponds are built on the water moisture surface in a twin-row mode according to the row spacing being 70cm and the line spacing being 60cm, film uncovering and seedling exercising are conducted 7 days before transplanting, and powder mancozeb is sprayed for disease prevention; field management is conducted, film rupturing and ridging are carried out, watering is achieved according to the dry and wet condition, diseased or infected plants are burned and buried, timber pile wires are pulled, the plants are fixed, and monopotassium phosphate is sprayed after defloration so that diseases can be prevented from endangering the plants. The method provides a mature technology for planting the marigolds in the sand of the high and cold region like Inner Mongolia.

The invention provides a bactericidal composition containing tetramycin and zhongshengmycin. The bactericidal composition comprises compounded effective components consisting of tetramycin and zhongshengmycin, with the balance being auxiliary components. The mass ratio of tetramycin to zhongshengmycin in the composition is 1-50 50-1, and the mass fraction of tetramycin and zhongshengmycin in a preparation is 1 to 80%, with the balance being auxiliary components which are allowed to use and admitted in pesticides; dosage forms of the composition comprise missible oil, a suspending agent, a wettable powder, a water dispersible granule, an emulsion in water, a micro-emulsion, a granule and a micro capsule. The composition is mainly used for preventing and treating rot diseases of fruit trees, alternaria leaf spot, rice blast, soybean root rot, fusarium wilt of cucurbits, cotton verticillium wilt, rust diseases of jujube trees, white rot of grape, black spot of ginseng and pseudo-ginseng, Exobasidium vexans Massee of tea, forest rot, canker, gumming diseases, leaf cast, damping off of forest seedlings, soft rot bacteria of vegetable, Pseudomonas lachrymans, Xanthomonas oryzae pv. oryzae, Physalospora piricola, Fusarium graminearum, etc.