6003 results about "Disease resistant" patented technology

The invention relates to a pest-proof disease-resistant organic fertilizer and a preparation method thereof, belonging to the technical field of organic fertilizers. Tobacco waste and oil tea pulp are utilized as main raw materials to develop a method of the pest-proof disease-resistant organic fertilizer. The invention breaks through the limitations of harmful substances and single product effect due to addition of chemical materials in the traditional organic fertilizer. The pest-proof disease-resistant organic fertilizer is prepared from the following raw materials: tobacco waste, oil tea pulp, organic substances, a poising agent and a microbial inoculant. The preparation method of the organic fertilizer comprises the following steps: crushing tobacco straws, tobacco stems, tobacco powder, oil tea pulp and organic substances, spraying the poising agent and microbial inoculant, mixing, carrying out pool stack fermentation and strip stack fermentation, screening and granulating to obtain the insect-proof disease-resistant organic fertilizer. The high-efficiency biological insect-inhibiting factors contained in the organic substances containing massive mycoprotein can effectively inhibit and kill pests and pathogenic bacteria, and solve the problem of environmental pollution caused by the pesticide fertilizer.

The invention discloses a microbial organic fertilizer. The microbial organic fertilizer is prepared from the following raw materials in parts by weight: 10-15 of peanut oil residue, 25-30 of pig manure, 4-8 of kieselguhr, 1-2 of starch, 10-15 of diammonium hydrogen phosphate, 18-22 of potassium chloride, 1-2 of effective microorganisms (EM) microbial agent, 10-15 of rot pear, 15-20 of rot orange, 20-25 of mushroom residue, 10-12 of silkworm dropping, 2-4 of amino acid chelation liquid, 8-12 of overdue milk, 2-4 of fructus cnidii, 2-5 of dried tea residue, 2-4 of eucalyptus leaves and 1-2 of pumpkin vine. By the microbial organic fertilizer, disease resistance and drought resistance of crops can be effectively improved, and the harm to the soil is also correspondingly slowed down; the rot fruit syrup, the dried tea residue, the peanut oil residue and the like are airtightly fermented and used, so that the nutrient content of the microbial organic fertilizer is enriched, the cost is saved, and wastes are turned into wealth; and the nutrients of traditional Chinese medicines can play good function when the traditional Chinese medicines are soaked through vinegar, are easy to release and thus can be absorbed by crops.

The invention belongs to the technical field of fertilizer, particularly relates to disease-resistant compound biofertilizer special for corn and further relates to a preparation method of the disease-resistant compound biofertilizer special for the corn. The disease-resistant compound biofertilizer special for the corn comprises carbamide, compound microbial agents, bran, chitosan, furfural residues, ammonium sulfate, potassium sulfate, monoammonium phosphate, rape seed cakes, manure, humic acid, sesame seed cakes, microelements, calcium superphosphate and plant ash. The nutrient elements of the disease-resistant compound biofertilizer special for the corn are balanced, microelement compositions are abundant, soil productivity and soil fertility can be improved effectively, addition of compound microbial agents can remarkably restrain main corn diseases occurring universally, the disease-resistant compound biofertilizer special for the corn is long in fertilizer efficiency, corn yield can be improved by 25 to 30 percent effectively, the corn diseases can be prevented and cured effectively, soil can be improved effectively through long-term utilization of the disease-resistant compound biofertilizer, and the disease-resistant compound biofertilizer special for the corn can play a role in the whole growth period of the corn.

A method for promoting plant growth and / or disease resistance comprising applying a purified polypeptide that is a bacteriocin and that possesses plant growth and / or disease resistance promoting activity to a plant or plant seed, or to the growing environment thereof.

The invention relates to rice fertilizer capable of improving the resistance, quality and yield of rice. The rice fertilizer consists of the following raw materials in percentage by weight: 20.0 to 27.0 percent of urea, 7.0 to 20.0 percent of ammonium sulfate, 5.0 to 13.0 percent of monoammonium phosphate, 9.8 to 17.5 percent of potassium chloride, 10.0 to 18.5 percent of calcium superphosphate, 3.0 to 6.0 percent of calcium-magnesium phosphate, 2.0 to 8.0 percent of soluble silicon, 0.1 to 0.9 percent of amino acid, 5.0 to 30.0 percent of humic acid, 0.5 to 6.0 percent of other trace elements (zinc, manganese, boron, ferrum, copper, molybdenum, selenium and the like), 0.2 to 0.5 percent of activating agent and less than or equal to 2.5 percent of water. The rice fertilizer has the advantages of comprehensively providing the nutrient required by growth of rice, improving the yield and the quality of rice, activating the nutrient of soil, enhancing the capacity of absorbing nutrient by crops, improving a soil structure, enhancing soil fertility, promoting development, and improving the resistance of the crops (disease resistance, pest resistance, drought resistance, flooding resistance, cold resistance, saline-alkaline resistance, lodging resistance and the like).

The invention relates to natural attractants, belonging to the field of feed additives. One natural attractant is mainly composed of a dried tangerine peel crushed substance, a hawthorn crushed substance, a cinnamon crushed substance, a mugwort leaf crushed substance, and composite microbial powder. The other natural attractant is mainly composed of a dried tangerine peel extractive, a hawthorn extractive, a cinnamon extractive, a mugwort leaf extractive, and composite microbial powder. The attractants provided by the invention has the advantages of promoting the ingestion of livestock, poultry and aquatic animals, increasing the ingestion speed and feed intake of the livestock, poultry and aquatic animals, avoiding the indigestion caused by overfeeding, increasing the feed intake and digestibility of the animals to the feeds hard to digest, expanding the application range and usage amount of unconventional feed materials, enhancing the immunity and anti-stress capability of the animals, resisting diseases, promoting growth, decreasing the production cost of the animal feeds and increasing the production benefits; the attractants contain no antibiotic and chemical medicine as well as drug residue, can be used for a long time without causing drug resistance, and have safety and high efficiency.

The invention relates to nitrogen fertilizers, in particular to a multi-functional slow-release urea fertilizer and a preparation method. The fertilizer comprises urea, a biochemical inhibitor, synergist, water-soluble salt ions of secondary and trace elements necessary for plants and / or beneficial elements for plant growth. By weight percentage, the weight percentage of the urea to the biochemical inhibitor to the synergist is equal to 1: 0.001-0.1: 0.0005-0.05, the salt ions of the secondary and trace elements necessary for the plants comprises one kind or a plurality of kinds of calcium, magnesium, sulfur, ferrum, copper, zinc, manganese, boron, molybdenum and chlorine, the weight percentage of the urea to all the secondary and trace elements necessary for the plants is equal to 1: 0-0.1: 0-0.1: 0-0.06: 0.001-0.03: 0.001-0.01: 0.001-0.01: 0.001-0.008: 0.001-0.01: 0.001-0.005: 0-0.006, the beneficial elements for the plant growth comprise silicon and selenium, and the weight percentage of the urea to all beneficial elements for the plant growth is equal to 1: 0-0.1: 0.001-0.08. The multi-functional slow-release urea fertilizer can promote growth of root systems, invigorate plants, enhance disease resistance, drought resistance and lodging resistance, and stimulate prematurity.

The invention discloses a laying hen composite premix, and belongs to the technical field of feed composition. A composite enzyme preparation containing beta-mannase, beta-glucanase, acidic proteinase, phytase, pectinase, and amylase is adopted to eliminate the anti-nutrient factors in soybean meal. Yeast cell wall type mycotoxin absorbent is used to effectively eliminate the hazardous factors that may affect the intestine health and are caused by using a large amount of corns. A stomach fortifying acid is used to effectively adjust the pH value of intestines. The used wood chips in the premix are soft and high in fiber content, do not hurt the intestines, do not pollute the environment, can effectively strengthen the digesting and absorbing abilities of laying hens, and have a stronger bearing and water-absorbing performance. The materials mentioned above are systematically and scientifically used to guarantee that the intestines of the laying hens be in the best state. The premix can improve the immunity and disease resistant performance of laying hens, and makes the laying hens exert the maximal laying ability. Moreover, the water content of manure is reduced, and the economic profit of farms that use the premix is prominently improved.

The invention relates to heavy metal resistance plant growth-promoting bacteria and a preparation applying method thereof, which belongs to the bioremediation field of heavy metal polluted environment. A bacteria strain D54 with a preservation number of CGMCC No. 3223 belongs to the Burkholderia sp. and has higher resistance to a plurality of heavy metals, wherein the resistances to Pb <2+>, Cd <2+>, Cu <2+>, Zn <2+> respectively reach 800 mg / L, 1500 mg / L, 150 mg / L and 2500 mg / L. In addition, the bacteria strain D54 has the plant growth-promoting functions of producing plant growth hormone (IAA), producing 1-amino-1-carboxyl cyclopropane (ACC) deaminase, secreting siderophore, dissolving inorganic phosphate, fixing nitrogen and the like, has the biological prevention functions of antagonizing plant pathogenic bacteria inbreak and the like, and can obviously improve the biomass of the plants applied the invention and improve the resistance to diseases and stresses. The number of the effective viable bacteria in liquid preparation reaches 1-2 billion / ml and the number of the effective viable bacteria in solid preparation reaches 1 billion / g. Soaking seeds for 1-2 hours in the liquidpreparation which is diluted 100 times and irrigating the diluted liquid preparation 1-2 times (10ml / kg) after 2-3 weeks of the sprouting of the seeds can effectively improve plant viable bacteria infection probability.

The invention discloses a broiler chicken breeding method and special feed traditional Chinese medicine addition agents thereof. According to the breeding method, during the age of 1-10 days of broiler chickens, the feed traditional Chinese medicine addition agents improving immunity of the broiler chickens are added to feeding feed; during the age of 11-19 days of the broiler chickens, the feed traditional Chinese medicine addition agents preventing respiratory diseases of the broiler chickens are added to the feeding feed; during the age of 20-29 days of the broiler chickens, the anti-virus feed traditional Chinese medicine addition agents are added to the feeding feed; during the age of 30-42 days of the broiler chickens, the feed traditional Chinese medicine addition agents promoting growth of the broiler chickens are added to the feeding feed; and adding proportion of the addition agents in the feeding feed is 0.3-1% of the total weight of the feed. The broiler chicken breeding method and the special feed traditional Chinese medicine addition agents thereof have the advantages of using the traditional Chinese medicine feed in the whole process, improving disease-resistant capacity of the broiler chickens, promoting growth and development of the broiler chickens, and being low in production cost, simple to produce and use, remarkable in use effect, and free from drug residue and adverse effect.

The invention relates to a production method of traditional Chinese medicine marinated eggs with health care function, which is characterized by comprising the following steps: preparing fresh soup, preparing marinating soup, disinfecting the surfaces of the eggs, cooking the eggs, marinating the eggs, vacuum packing the marinated eggs, and sterilizing by steam in a sterilizer for 30 minutes. The main ingredients used in manufacturing the marinated eggs are a plurality of Chinese herbal medicines which have long history in China and are both medicines and foods, and after reasonable compatibility and scientific fine processing, a proper amount of the Chinese herbal medicines used can ensure the color, flavor, shape and unique alluring taste of the marinated eggs, thereby improving the food treatment efficacies of the marinated eggs for preserving health, beautifying, building the body, invigorating spleen-stomach and replenishing qi. The marinated eggs can be eaten to adjust the physiological function of the body, reduce blood fat, improve the physiological function and detoxicating capacity of the liver, activate tissues and activate cells, thereby enabling the body to restore the physiological equilibrium and improving the disease-resistant capacity and energy of the body.

The invention relates to a feeding addition agent for microorganism viable bacteria and a preparing method thereof. The addition agent consists of 1.5-2.5 parts of bacillus coagulans viable bacteria powder, 0.5-2.0 parts of lactobacillus acidophilus viable bacteria powder, 1.0-2.5 parts of lactobacillus plantarum viable bacteria powder, 0.5-2.5 parts of bacillus natto viable bacteria powder, 0.5-1.5 parts of candida utili viable bacteria powder and 2-4.5 parts of aspergillus niger viable bacteria powder. Each gram of the content of viable bacteria is as follows: bacillus coagulans is not less than 1.0*10cfu / g; lactobacillus acidophilus is not less than 1.0*10cfu / g; lactobacillus plantarum is not less than 1.0-10cfu / g; bacillus natto is not less than 1.0*10cfu / g; aspergillus niger is not less than 1.0*10cfu / g; and candida utili is not less than 1.0*10cfu / g. The invention has the advantages that the composition is reasonable, the preparation method is scientific, the usage scale is wide, the operation is simple and easy to master, and the cost is low. In addition, the invention can be used as the feeding stuff agent for various poultries, thus increasing the use ratio of the feeding stuff addition agent and strengthening the anti-disease ability of the poultries.

The invention discloses a plantation method for eggplants. The plantation method for the eggplants is scientific and reasonable. Detailed introduction is made on seed selection, seedling cultivation, field planting, field management and the like, the steps are simple, operation is convenient, popularization is easy, a traditional plantation mode for the eggplants is changed, rapid growth of the eggplants is promoted, the disease-resistant ability of the eggplants is improved, the disease occurrence rate of the eggplants is lowered, and therefore the eggplants can be high in quality and yield, and the economic benefit of vegetable growers can be increased.

The invention discloses a fowl manure fermentation fertilizer. The fertilizer is produced by materials of fresh fowl manure, rice bran powder, maize meal, wheat flour, brown sugar, lime powder, dinoflagellate, microzyme, lactobacillus, thermophilic actinomycetes, etc. The invention improves culture environment of henhouses, and heavy metal in the fowl manure is degraded and changed into treasure, becoming an ecological organic fertilizer which is comprehensively and abundantly nutrient. Nitrate and secondary salt formed in the soil by fertilizer residual can be degraded by the fowl manure fermentation fertilizer, and therefore functions of disease resistant, lodging resistant, crop yields improvement can be realized; ventilation property of the soil is improved, soil hardening and virus can be reduced and banished, meanwhile, dosage of the chemical fertilizer and pesticide is reduced; production cost is reduced, pollution is reduced and soil environment is optimized, and microeubiosis of the soil is achieved; therefore the crops can be ripen in advance, grade of the crops is improved, hazardous and noxious substance contents remained in the crops are lowered and banished, and the green environmental requirements of heavy metal residual of the crops can be achieved.

The invention discloses a preparation method of a broiler feed. The broiler feed belongs to the field of feeds. The broiler feed provided by the invention is prepared from high-quality white corn, bean cake, rape seed cake, cottonseed cake, barley, broomcorn, alfalfa meal, fish meal, mountain flour, plant oil, edible salt, traditional Chinese medicine additive agents, sodium bicarbonate, trace elements, allicin, phytase and vitamin C through the technology of crushing, mixing, granulating, drying and the like. The feed is rich in nutrition, has good mouthfeel, can meet the nutrition need of broilers in a growing period after being taken by the broilers so as to enable broilers to guide qi downward, be good in digestion and be clam, also has the effects of accelerating broilers to grow, and improving the chicken flavor and daily gain, is high in disease resistant capability, and is high in safety.

The invention relates to a synergistic fertilizer, in particular to a green and environmental protection synergistic slow-releasing nitrogen fertilizer which is mixed in ammonium nitrogen fertilizers or urea, and a preparation method thereof. The fertilizer constituents are as follows: nitrogen fertilizer, a biochemical inhibitor and a synergist, wherein, the weight portion ratio of the nitrogen fertilizer to the biochemical inhibitor to the synergist is equal to 1:0.005 to 0.1:0.0005 to 1; the biochemical inhibitor is a nitrification inhibitor, and the synergist is poly (aspartic acid). The preparation method is as follows: during the operation process of the nitrogen fertilizer, the biochemical inhibitor and the synergist are added into the fertilizer under the molten state of the fertilizer. The synergistic nitrogen fertilizer of the invention is suitable for various plants and soils. The fertilizer has notable disease-resistant, drought-resistant and lodging resistant effects on crops after being applied in soils, can effectively improve nutrients reserving power of soils and has certain effect on succession crops. Gain production can be increased by 8% to 30%, vegetable production can be increased by 14% to 60% and cash crop production can be increased by more than 30% by using the synergistic slow-releasing nitrogen fertilizer.

The invention discloses a health feed for meat pigeons, which comprises the following ingredients in percentage by weight: 25-35% of medium granular sand, 4-7% of yellow mud, 20-30% of shell powder, 5-8% of aged gypsum, 5-7% of aged lime, 3-5% of wood charcoal powder, 7-10% of bone meal, 4-5% of table salt, 0.8-1.2% of red iron oxide, 0.8-1.2% of traditional Chinese medicine, 4-8% of microelements, 0.8-1% of methionine and 1.2-2% of yeast powder. The feed, per 100 g, contains 50 g of sodium selenite and 50 g of complex vitamins. The feed has the benefits of providing sufficient nutrients to meat pigeons, enhancing the disease defense ability of meat pigeons and promoting the fast growth of meat pigeons.

The invention provides a targeting sgRNA for pig CD163 gene editing, a modification vector, and a preparation method and application thereof, which relate to the technical field of gene engineering. The sgRNA and the gene modification vector provided by the invention have high specificity, and can be used for efficiently editing a pig CD163 gene on a cell level through a CRISPR / Cas9n system. According to the preparation method of a blue-eared disease resistant pig provided by the invention, a blue-eared disease virus receptor is damaged, the target gene CD163 is edited, no other exogenous gene is intruded, no non-specific editing is carried out on a non-CD163 gene area on a genome, a genetic background is clean and clear, and the work of later transgene safety evaluation is greatly reduced. The blue-eared disease resistant pig obtained by utilizing the invention can be ensured to survive normally, and resists the infection of a blue-eared disease virus, so that the economic loss caused by the blue-eared disease in pig husbandry is greatly reduced.

The invention relates to bacillus subtilis SE 201412 deposited under the accession number of CCTCC No. M 2015708. The strain has quite high selenium resistance, and can be fermented in a selenium-containing culture medium to generate fermentation liquor of which the organic selenium content reaches 5,000 mg / L-12,000 mg / L. The fermentation liquor is prepared into an organic-selenium-rich bactericide which is applied to leaf surfaces of crops in a growing period, selenium-rich agricultural products can be produced, the produced agricultural products can reach quality standard of organic-selenium-rich grain, oil, fruit, vegetables and dried fruit, the quality and the yield of the agricultural products can be improved, and disease resistance of the crops is improved.

The invention belongs to the technical field of feed micro-ecology and relates to a composite micro-ecological preparation as well as a premixed material and an application of the preparation in a feed additive. The preparation contains Lactobacillus acidophilus powder and any two, three or four bacterium powders selected from Bacillus licheniformis, Bcillus pumilus, enteroccus and Bcillus subtilis; the preparation has high live bacteria content and low moisture content, has stress tolerance properties such as gastric acid resistance, cholate resistance, high temperature resistance, common antibiotics tolerance and the like and has the probiotic functions of producing acid and enzyme, inhibiting pathogenic bacteria and the like. By using the composite micro-ecological preparation of the invention, the utilization rate of the feed can be improved, the yields of meat, eggs, milk and the like are increased, the growth of animals is promoted, the immunity and disease-resistant capability of an animal organism are improved, and partial preparation can be used for replacing antibiotics, thereby changing the quality of an animal product.

The present invention relates to a turtle artificial cultivating method, in particular to a method selecting and breeding the good Chinese turtle strain, which resolves the technical problems of the prior art that the turtle is not selected for breeding in different growth periods, the selection of the turtle is not enough to mix the defective turtle in different periods and the quality-degraded turtle, thereby leading to the degradation of the quality of the offspring of the cultivated parent turtle; the quality is reduced, the growth is slowed down and the disease-resistant ability is weakened. The present invention firstly selects the ecological environment and then selects the parent turtle, the fertilized egg, the juvenile turtle, the adult turtle and the reserve parent turtle in turn; wherein, the selection rate of the parent turtle is from eighty percentages to eighty five percentages; the selection rate of the juvenile turtle is from twenty five percentages to thirty five percentages; the selection rate of the adult turtle is from forty five percentages to fifty five percentages and the selection rate of the reserve parent turtle is from sixty five percentages to seventy five percentages.

The invention discloses a novel strain CLIMAX-VSF of streptomyces fradiae. The preservation number of the novel strain is CGMCC No. 5133; the preservation date is August 12, 2011; and the preservation department is China General Microbiological Culture Collection Center. The invention further discloses a microbial inoculum containing the novel strain. The novel strain CLIMAX-VSF of the streptomyces fradiae, which is provided by the invention, has quite obvious performances of disease resistance, nitrogen fixation, phosphate solubilization and somatotropin secretion. By using the strain, the germination rate and the growth speed in a seedling stage can be obviously improved under the condition that nutrients are not added to soil, and furthermore, diseases in the seedling stage and a growth period are obviously inhibited. On the aspect that the strain is used for the mixed preparation and the synergy of a fertilizer, the strain shows to have the favorable effect of activating soil nutrients and the performance of resisting a plurality of cultivation obstacles.

The invention relates to the technical field of aquaculture, and specifically relates to a feed for siniperca chuatsi. The feed is prepared by the following raw materials by weight: 55-60 parts of corn, 20-22 parts of rye bran, 10-12 parts of peanuts, 20-25 parts of rapeseed meal, 6-8 parts of chironomidae larvae powder, 8-10 parts of small carp meal, 8-10 parts of loach dry powder, 6-8 parts of herba houttuyniae, 10-12 parts of white fish meal, 6-8 parts of escargot powder, 8-10 parts of dry sphagna powder, 5-6 parts of meat and bone meal, 6-8 parts of radish leaves, 0.5-1 part of rheum officinale, 1-2 parts of saponin, 1-2 parts of felwort, a proper amount of salt and 4-5 parts of a phagostimulant. In consideration of the carnivorous characteristic of the siniperca chuatsi, an abundance of raw materials such as small carp meal, loach dry powder, white fish meal and escargot powder are added in the prepared feed for siniperca chuatsi, so that enough nutrients are provided for the growth and development of the siniperca chuatsi. Traditional Chinese medicine components such as herba houttuyniae, rheum officinale and saponin are added, so that disease-resistant capacity of the siniperca chuatsi can be enhanced. Particularly, parasitic diseases can be prevented; morbidity of the siniperca chuatsi is reduced; and loss of culture benefits can be prevented.

The invention discloses a disease-resistant growth promoter for aquatic animals and a preparation method thereof. The disease-resistant growth promoter is characterized in that a novel environmentally-friendly feed additive is prepared by combining the traditional Chinese medicine with a modern microbial transformation technology. The preparation method comprises the following steps: mixing dandelion, licorice root, lightyellow sophora root, barberry root and the like after crushing and screening; adding bran, soybean meal, corn flour and water as a fermentation culture medium, regulating thepH value, sterilizing, cooling, adding a strain, and fermenting; and drying after the fermentation is finished. The disease-resistant growth promoter for the aquatic animals is formed by virtue of beneficial combination of the traditional Chinese medicine and probiotics, can be used for replacing antibiotics and has the effects of resisting bacteria, preventing verminosis, resisting virus, improving the immunity, promoting the growth of the aquatic animals and the like; no toxicity, no side effects, no pollution, no residue and no drug resistance are produced during the long-term use of the disease-resistant growth promoter; and the effects are stable and reliable, and the requirements of people on safe production of aquatic products can be met. The disease-resistant growth promoter for the aquatic animals can also be applied as a veterinary drug by improving the using dose.

Disclosed is a large-scale breeding method for breeding mummified aphids and adult bees of aphidiusgifuensis by yellow-green myzuspersicae. The yellow-green myzuspersicae with large bodies serve as host aphids of aphidiusgifuensis, and parent aphid disease-resistant leafy cruciferous green vegetables, radishes or sweet blue flowers serve as host plants of the yellow-green myzuspersicae, so that the mummified aphids and the adult bees of the aphidiusgifuensis are artificially bred on a large scale. The method solves the problems that the bodies of the host aphids are small, the mummified aphids are difficultly collected, the eclosion rate of the aphidiusgifuensis is low, successful egg laying amount is small and industrialized production is not easily realized when the aphidiusgifuensis is artificially bred. Collecting and breeding technology of the host aphids and species of the aphidiusgifuensis is provided in the artificially breeding process, the technology of host plant cultivation, inoculation breeding of the aphids and breeding of the mummified aphids and the adult bees of the aphidiusgifuensis is provided, the method has the advantages of short period, high efficiency, high breeding speed and low cost, the mummified aphids of the aphidiusgifuensis can be largely bred, the mummified aphids and the adult bees of the aphidiusgifuensis are produced on a large scale, and the myzuspersicae, English grain aphids and cotton aphids can be effectively prevented in the technical field of biological prevention.

The invention provides a feed for improving the disease resistance of a grass carp. The feed is characterized by comprising soybean cake, wheat meal, shell meal, fish meal, table salt, rice bran, fish oil, betaine, traditional Chinese medicine feed premix additive, zinc-containing polypeptide, zinc-containing microelement additive, vitamin mixture additive at least containing vitamin C, vitamin E and inositol, yeast and amino acid mixture additive at least containing threonine. The feed provided by the invention can improve the immunity of the organism of the grass carp and protect the grass carp from getting sick; the application of antibacterial chemical medicines and anti-virus chemical medicines is reduced to a certain degree, the survival rate of the grass carp is increased, and the activity of lysozyme and superoxide dismutase in the grass carp is improved; and moreover, the feed ensures little drug residue and low toxicity, and does not influence the quality of the grass carp or harm the human health.

The invention relates to a seedling stage identification method for the resistance of tobacco to the bacterial wilt. The seedling stage identification method comprises the steps of heat preservation pool construction, pool water heating and circulation, wilt bacterium inoculation, tobacco seedling, disease state investigation and grading. The method replaces a conventional field identification result with a seedling stage identification result, identifies a great amount of material in a smaller area, carries out the identification a plurality of times annually, improves the reliability of the result, shortens the identification cycle, saves the site and test cost, and covers little floor space. The seedling stage identification method for the resistance of tobacco to the bacterial wilt is characterized by rapid disease development, good result repeatability, and the like. The seedling stage identification method for the resistance of tobacco to the bacterial wilt can effectively remove the interference on the resistance result caused by soil temperature difference, strain pathogenicity difference, strain quantity difference and other diseases, thereby benefiting the recurrence and comparison of results from different years and different labs. The difference between the attack rates of infection resistant varieties and the disease indexes is obvious; and the appraisal result of the resistance of the variety is basically consistent with the perennial resistance appraisal result obtained by others. The method has greater application potential in the resistance identification and resistance heredity rule study of disease resistant resources and breeding medium materials.

The invention belongs to the technical field of fertilizer preparation, and particularly relates to a biological compound organic bacterial fertilizer which is composed of a compound fertilizer and a mixed microbial agent. The compound fertilizer comprises the following raw fertilizers in percentage by weight: 14.5% to 25.2% of humic acid, 33.5% to 45.1% of biochar, 22.5% to 35.5% of chemical fertilizer and 10.2% to 15.4% of bentonite; besides 10 mL to 20 mL mixed microbial agent is added into the compound fertilizer per kilogram. The biological compound organic bacterial fertilizer not only can be taken as an auxiliary fertilizer to be mixed with a chemical fertilizer for use, but also can be used alone, can effectively supply soil organic matters, activates P fertilizer and K fertilizer of soil, and improves the disease resistance of crops; particularly, the microbial agent is composited, so that the biological compound organic bacterial fertilizer has a better effect on the prevention and treatment of soil-borne disease and continuous cropping disease of the crops, and is efficient, nontoxic and environment-friendly.

The invention discloses an efficient multifunctional seaweed biological fertilizer and relates to the technical field of compound fertilizers. The raw materials include 10-80 parts of seaweed fermentation liquor, 5-30 parts of humic acid, 5-30 parts of urea, 5-20 parts of monoammonium phosphate, 5-20 parts of potassium sulfate and 2-10 parts of trace elements, and all the raw materials are mixed, concentrated and dried at low temperature to obtain the efficient multifunctional seaweed biological fertilizer. The efficient multifunctional seaweed biological fertilizer can quicken photosynthesis of crops, enhance disease resistance and drought resistance, improve crop yield and improve soil structure and soil water and nutrient retention capability, and is worth popularizing energetically.