282results about How to "Reduce disease" patented technology

The invention relates to the technical field of laying hen breeding, and discloses an automatic acquisition and analysis system for laying hen breeding data. The information acquisition unit is used for collecting physiological parameters, behavior data, environmental parameters and health indexes of laying hens in real time; the disease monitoring unit is used for analyzing the collected data and identifying physiological abnormality and behavior change before the disease occurs; the antibody level monitoring unit is used for evaluating the immune response capability of the laying hens to specific pathogens; the environment adaptability evaluation unit is used for evaluating the adaptability of the laying hens to the extreme environment according to the environment parameter change and the physiological response of the laying hens; the breeding decision support unit is used for integrating all data and analyzing the production performance, disease resistance and environmental adaptability of laying hens; an optimal feeding scheme is recommended, medicine use is reduced, and resource allocation is optimized.

The invention discloses a feeding method and device capable of automatically adding pig raising feed, and aims to optimize feed management in the pig raising process through an automatic and intelligent technology. Comprising the following steps: monitoring environmental parameters such as temperature, humidity and air quality in a pig house in real time through an environment monitoring device, and transmitting data to a central control system; the central control system dynamically generates and adjusts a feed formula according to environmental parameters and growth stages and health conditions of pigs, and accurately mixes feed components through an automatic proportioning device. The feed trough sensor monitors the residual amount of feed in the feed trough, and when the feed is insufficient, the system automatically controls the feed conveying device to supplement the feed. In the feeding process, the central control system adjusts the feed adding frequency and the feeding amount according to real-time data, and the cleaning device is combined with the ultrasonic cleaning and nano-coating technology, so that the cleanliness and long-term stable operation of the equipment are ensured.

The invention relates to the technical field of health care product preparation, and particularly discloses an oyster peptide enzyme oral liquid capable of enhancing immunity and a preparation method thereof, the oyster peptide enzyme oral liquid comprises the following components: 20 parts of oyster peptide, 50 parts of plant enzyme liquid, 5 parts of honey, 2 parts of fructo-oligosaccharide, 2 parts of lemon juice and 100 parts of purified water; the oyster peptide enzyme oral liquid contains rich natural antioxidant ingredients including oyster peptide and plant enzyme liquid, the oyster peptide contains a large amount of sulfur-containing amino acid, and the ingredients can be used as antioxidants to reduce generation of free radicals and protect cells from oxidative damage; the plant enzyme is rich in natural antioxidant enzyme, can promote synthesis of antioxidant enzyme in vivo and remove free radicals in vivo so as to slow down senescence and diseases, the oyster peptide and the enzyme act together to improve the activity of catalase in vivo, and oxidative stress is reduced by removing superoxide anion free radicals.

The invention discloses application of a substance with a TaSWEET11f gene knocked out to improvement of gibberellic disease resistance of wheat crops, and relates to the technical field of agricultural biology. According to the application, the correlation between the TaSWEET11f gene and the gibberellic disease resistance is found for the first time, three homologous genes TaSWEET11f-A, TaSWEET11f-B and TaSWEET11f-D of the gene are obtained through screening, the wheat TaSWEET11f gene is specifically knocked out in a receptor material by adopting a CRISPR / Cas9 gene editing technology, gibberellic disease resistance identification is carried out by utilizing a single-flower instillation method, and a result shows that compared with a receptor material Fielder, the wheat TaSWEET11f gene has the advantages that the wheat TaSWEET11f gene can be compared with the receptor material Fielder; the gibberellic disease resistance of a plant edited by the CR-Tasweet11f gene is obviously improved; according to the invention, the wheat TaSWEET11f gene is knocked out by using a CRISPR / Cas9 technology, so that a technical support is expected to be provided for directionally and rapidly creating new germplasm resistant to gibberellic disease, and the method has wide breeding utilization value.

The invention discloses a microbial compound high-efficiency organic bacterial fertilizer which comprises the following raw materials: 10-20 parts of a microbial agent, 10-20 parts of humic acid, 3-10 parts of natural mineral powder, 1-7 parts of a plant extract, 2-4 parts of amino acid, 2-5 parts of a seaweed extract, 1-3 parts of chitosan, 3-7 parts of charcoal, 1-3 parts of chitin, 2-5 parts of potassium fulvate and 1-3 parts of lignosulfonate. The problems that existing organic bacterial manure is single in function, not remarkable in effect, high in preparation cost and the like are solved. The organic bacterial fertilizer has multiple functions of improving soil fertility, promoting crop growth, enhancing crop stress resistance and the like, and the preparation method is simple, easy to implement, low in cost and suitable for large-scale production.

According to the method, bacillus licheniformis bacterial liquid and calcium ion liquid are sequentially, slowly and evenly sprayed on the surface of a soil body, soil particles on the surface of a slope are cemented, a layer of calcium carbonate protection film is formed on the surface of the soil body, the anti-scouring capacity of the soil body can be effectively improved, flowing of the soil particles is reduced, and plant growth is protected; the adopted bacillus licheniformis can also increase the number of effective microbial communities in soil, improve the root system environment, promote plant growth, inhibit reproduction of harmful microorganisms, improve the granular structure of the soil, improve the soil, regulate the pH value of the soil, improve the water storage, energy storage and heat preservation of the soil, improve the disease resistance of crops and promote the maturity of plants; after vegetation grows, the effect of water and soil conservation can be improved, generated calcium carbonate can also bond soil particles, water and soil loss is reduced, bacillus licheniformis plays a dual role, multiple utilization of resources is achieved, and wide application prospects are achieved.

The invention discloses an aquaculture denitrification microcapsule as well as a preparation method and application thereof, and relates to the technical field of aquaculture and biology. The lactobacillus casei provided by the invention can secrete acid metabolites, and the acid metabolites can inhibit pathogenic vibrio, so that the occurrence of diseases in aquaculture can be reduced. Lactobacillus casei has the efficacy of efficiently degrading ammonia nitrogen and nitrite nitrogen in the aquaculture environment, and can continuously realize efficient cleaning of the aquaculture environment. In addition, the invention also provides a denitrification microcapsule which creates a more favorable microenvironment for the efficient denitrification strain, so that the repeated denitrification performance is more stably exerted, and the denitrification microcapsule can be repeatedly utilized.

The present invention relates to a sparse planting method of pineapple sugar-apple fruit in dry and hot valley areas, and belongs to the technical field of fruit tree cultivation. The present invention comprises the following steps: S1, constructing a water platform land according to the topography in the dry and hot valley areas; S2, mixing sheep manure, lime and tobacco leaves in a ratio of 15-20:1:3 to improve the soil of the water platform land; S3, using seedlings to sparsely plant along the contour line in the quasi-water platform land, and timely spray irrigation; S4, in February of the second year after the survival of the seedlings, scion grafting, sheep manure, lime, tobacco leaves, calcium magnesium phosphorus, and compound fertilizer are applied 4 times in the four seasons of each year, and the young tree shape is arranged in combination with windproof measures, and a regular and full tree crown is cultivated; S5, when the seedlings begin to bear fruit, combined with soil reform fertilization, production period adjustment, artificial pollination, fruit period management, fruit bagging, fruit harvesting management and pest control are carried out in batches. The present invention greatly improves the yield and quality of pineapple sugar-apple fruit in dry and hot valley areas, and improves the slope utilization value of dry and hot valley areas.

The invention relates to the technical field of microbial control, and discloses a bacillus velezensis nano-material complex microbial inoculant as well as a preparation method and application thereof. The microbial inoculum is prepared by the following steps: preparing a bacterial suspension of bacillus velezensis; mixing sodium alginate with the bacterial suspension, adding nanocarbon, and stirring to obtain a mixed solution; and adding the mixed solution into a stirred calcium chloride solution, and reacting to obtain the bacillus velezensis microcapsule fungicide. The bacteriostasis rates of the fungicide for citrus brown spot, citrus colletotrichum gloeosporioides, citrus lipolytic macular blight, banana fusarium wilt and banana long leaf spot bacteria are all greater than 56%; the prevention and treatment effect on the Huanglongbing reaches 57.84%. After ultraviolet irradiation, the bacteriostatic ability of the microbial agent is reduced by only 4.32%, and the microbial agent can play a biological prevention and control role for a long time. The growth amount of citrus seedlings treated by the microbial inoculum can be increased by 220.39%, the number of newly grown leaves can be increased by 244.67%, and the microbial inoculum has a good plant growth promoting effect.

The invention provides a biological fermentation feed for enhancing immunity of aquatic animals and a preparation method of the biological fermentation feed, and relates to the technical field of aquaculture. The biological fermentation feed is prepared by compounding fish bone meal, a rice bran fermentation material, soybean meal, a compound fermentation material, visceral meal, orange peel powder, corn starch, compound vitamins, tea saponin and protocatechuic acid. According to the present invention, the defects in the prior art are overcome, the weight gain growth of the aquatic product is comprehensively ensured through the compound addition of the microbial components of the aquatic product feed and the regulation and control of other components, the immunity of the aquatic product is further improved, and the artificial breeding benefit of the aquatic product is comprehensively ensured.

The invention relates to the technical field of planting equipment, and discloses a traditional Chinese medicinal material planting field ridging device which comprises a traction frame used for being connected with a traction carrier, a supporting frame is fixedly connected to the bottom of the traction frame, a separation mechanism is arranged in the supporting frame, and a conveying belt is arranged behind a bucket, so that the traditional Chinese medicinal material planting field ridging device is formed. According to the ridging machine, shoveled soil can be conveyed, the soil is screened through the part composed of the round bars in the middle of the conveying belt, loose soil can fall back to the ground again from gaps of the round bars, and some large sundries such as stones in the soil can be continuously conveyed along with the conveying belt so as to avoid the situation that during ridging, the soil cannot fall off easily. In the prior art, soil in a place with stones is difficult to be uniformly compacted, and the conditions of looseness and large compactness difference occur, so that the growth of root systems of crops is influenced, the root systems are non-uniformly grown in the soil with different compactness, and the absorption of the root systems to water and nutrients is influenced.

The invention provides a special fertilizer for highland barley in Tibet high-altitude areas, which specifically comprises a matrix, a base fertilizer, an organic fertilizer, a trace element fertilizer, a modifier and a nutritional agent in a mass ratio of 100: 50: 100: 1: 15: 3, the substrate comprises loam, river sand and bentonite; the base fertilizer comprises nitrogenous fertilizer, phosphatic fertilizer and potash fertilizer; the organic fertilizer comprises bran, decomposed straw, decomposed excrement, plant ash and aquatic animal powder; the modifier comprises wormcast, silkworm excrement, perlite and vermiculite; the nutritional agent comprises compound vitamins, glucose, honey and compound amino acids; the raw materials used in the method are green, safe and pollution-free, the soil structure is improved while nutrient substances needed by highland barley growth are provided, the bran, the straw, the decomposed excrement and other agricultural wastes are used, cost is saved, efficiency is improved, and the utilization rate of resources is increased.

The invention discloses a liquid fertilizer for improving the yield of tuber and bulbil of pinellia ternate and a preparation method thereof, and belongs to the technical field of liquid fertilizers, the liquid fertilizer comprises the following components by concentration: 10-15 mmol / L of phenylalanine, 20-30 g / L of wood vinegar, 8-10 g / L of algin, 5-10 g / L of potassium humate, 0.5-1 g / L of boric acid, 8-12 g / L of a retention agent and 2-8 g / L of a suspension stabilizer; phenylalanine can promote separation and elongation of plant cells so as to adjust the growth and development process of crops. Under the condition of phenylalanine with the concentration of 10-15 mmol / L, the pinellia ternate shows obvious agronomic character advantages, the forms of tubers and bulbils are improved, the weight is increased, the pinellia ternate is fuller, the speed of developing the bulbils into filial generation pinellia ternate can be increased, the yield of the pinellia ternate is increased, and the market competitiveness and the economic benefit are enhanced.

The utility model belongs to the technical field of livestock and poultry breeding, and particularly relates to a poultry feeding device which comprises a feeding frame, a water storage tank and a plurality of feeding units. The feeding units are sequentially arranged on the feeding frame; the feeding unit comprises coops, a hopper and a manure hopper, the hopper is arranged in front of the coops, the manure hopper is arranged below the coops, a water pipe is connected to the water storage tank and sequentially penetrates through the coops, and water nozzles are connected to the water pipes corresponding to the coops; the coop is arranged on the feeding frame through the first weighing sensor, the hopper is arranged on the feeding frame through the second weighing sensor, and the water storage tank is arranged on the feeding frame through the third weighing sensor. The feeding device is reasonable and compact in layout, high in integration degree and low in consumption and cost, space is saved, it is guaranteed that the chickens have proper movement space, fine feeding is achieved by combining the feed intake, the water intake and the weight change which are monitored in real time, and the growth cycle, the health condition and the chicken quality of the chickens are optimized.

The invention relates to a trichoderma asperellum and pseudomonas aeruginosa compound microbial agent as well as a preparation method and application thereof. The compound microbial agent is prepared from a pseudomonas aeruginosa solid fermentation product, a trichoderma asperellum solid fermentation product, an auxiliary agent and a synergist, the number of effective spores in the compound microbial agent is greater than 10 < 10 > CFU / g; the pseudomonas aeruginosa is preserved in the China General Microbiological Culture Collection Center (CGMCC) on September 13, 2022, and the preservation number of the pseudomonas aeruginosa is CGMCC No.25697; the trichoderma asperellum is preserved in the China General Microbiological Culture Collection Center (CGMCC) on August 9, 2023, and the preservation number of the trichoderma asperellum is CGMCC No. 40752. The compound microbial agent can effectively solve the problems of soil-borne diseases such as pepper phytophthora blight and continuous cropping obstacles in the prior art, and has an obvious growth promoting effect on melon and vegetable plants such as pepper.

The invention discloses a Qingyuan chicken feed production process, which comprises: 1, raw material preparation: selecting the following raw materials by weight: 40-50 parts of corn, 20-30 parts of soybean meal, 10-15 parts of wheat bran, 5-10 parts of fish meal, 3-5 parts of bone meal, 2-4 parts of shell powder, 3-6 parts of a Chinese herbal medicine additive, 0.5-1 part of composite vitamins, and 0.5-1 part of composite minerals, wherein the Chinese herbal medicine additive is prepared from radix astragali, radix codonopsis, poria cocos, rhizoma atractylodis macrocephalae, fructus crataegi, fructus hordei germinatus and medicated leaven; 2, pretreating the raw materials, respectively screening and removing impurities from the corn, the soybean meal and the wheat bran, and crushing the fish meal, the bone meal and the shell powder; by reasonably matching various raw materials and particularly adding the specially prepared Chinese herbal medicine additive, the immunity of the Qingyuan chickens can be improved, diseases can be reduced, and the use amount of medicines in the breeding process can be reduced.

The invention belongs to the field of ferrous metallurgy, and relates to a rare earth microalloyed plateau weather-resistant high-performance structural steel plate and a preparation method thereof. The steel comprises the following components in percentage by weight: 0.03%-0.05% of C, 0.15%-0.25% of Si, 1.30%-1.60% of Mn, less than or equal to 0.013% of P, less than or equal to 0.005% of S, 0.020%-0.045% of Nb, 0.006%-0.020% of Ti, 0.5%-1.0% of Ni, 0.15%-0.20% of Cr, 0.10%-0.30% of Cu, 0.001%-0.003% of Zr, 0.001%-0.010% of RE and the balance of Fe and inevitable impurities. The preparation method comprises the steps of molten steel converter smelting, RH and LF refining, continuous casting, casting blank heating, rolling and the like. According to the high-performance structural steel plate, ReH is larger than or equal to 420 MPa, Rm is larger than or equal to 525 MPa, the ductility is larger than or equal to 30%, the yield ratio is smaller than or equal to 0.80, the longitudinal impact energy at the temperature of-60 DEG C is larger than or equal to 250 J, the comprehensive mechanical property is excellent, the relative corrosion rate is smaller than or equal to 50% compared with traditional Q355 carbon steel, and the high-performance structural steel plate has the advantages of being resistant to low-temperature freezing and thawing, resistant to corrosion and resistant to environment-sensitive fracture.

The utility model provides a cottage bed with a cottage positioning structure, which comprises a cottage plate, a cottage bed and a recovery assembly, the recovery assembly is arranged on the lower side surface of the cottage bed, and the recovery assembly comprises a recovery box used for collecting irrigation water and a baffle used for changing the water flow direction. Compared with the prior art, the cutting device has the advantages that the cutting plates are arranged, the cutting holes are formed by the cutting plates, it is guaranteed that each cutting seedling is cut in the corresponding cutting hole, the cutting position is accurate, meanwhile, a user can adjust the number and the position of the cutting holes through the cutting plates of different numbers according to different requirements, and the cutting efficiency is improved. By arranging the recycling assembly, waste is reduced, irrigation water is recycled in a centralized mode, follow-up treatment is facilitated, meanwhile, the phenomenon that water accumulates at the bottoms of the cuttage holes is avoided, diseases are reduced, and the situation that roots of cuttage plants are soaked with excessive water, and consequently the plants die is prevented.

The utility model discloses an air supply system of an edible mushroom storehouse. The air supply system comprises a mushroom house and an air cooler for supplying air to the mushroom house, two rows of mushroom frames are symmetrically arranged in the mushroom house, two air outlet pipes are symmetrically installed in the mushroom house, the two rows of mushroom frames are located between the two air outlet pipes, the two rows of mushroom frames are arranged in a spaced mode, the air outlet pipes and the mushroom frames are arranged in a spaced mode, and the air outlet pipes are located above the mushroom frames. The air outlet pipe is provided with air holes with downward openings, and the multiple air holes are evenly formed in the length direction of the air outlet pipe. Planting layers used for planting edible mushrooms are arranged on the mushroom frame, and the multiple planting layers are arranged on the mushroom frame in the vertical direction; the air holes can blow air to the planting layers located in the middle and below the mushroom frame. The air cooler can supply air to the air outlet pipe, and the mushroom house is further provided with an exhaust valve. Through the arrangement, the temperature, the humidity and the oxygen level of each area in the mushroom house can be effectively adjusted and balanced, and therefore it is guaranteed that mushrooms can be in the most suitable environment condition in the whole growth cycle.

The invention provides a culture method for shortening the culture cycle of trachinotus ovatus, which specifically comprises the following steps: (1) setting and dividing different culture areas, and spraying compound bacteria liquid in each culture area before fry casting; (2) fry putting: healthy trachinotus ovatus fries are screened and put into each culture area; (3) feed feeding: feeding different nutrient materials in different culture areas; (4) cultivation management; (5) daily management: arranging a light source lamp above the breeding area. By means of the breeding method, the breeding period of the trachinotus ovatus is obviously shortened, the situation that the breeding environment is converted in the breeding process of the trachinotus ovatus is avoided, and the situation that the trachinotus ovatus generates stress reaction or is infected with various diseases, and consequently the breeding cost is increased is avoided. The golden pomfret obtained through the breeding method is high in growth speed, the immunity is improved, the morbidity and the mortality rate are reduced in the breeding process, and the flavor quality of fish products is improved.

The invention relates to the technical field of soil improvement, and discloses a multiple-effect soil conditioner based on waste and inferior tobacco leaves and a preparation method and application of the multiple-effect soil conditioner based on the waste and inferior tobacco leaves. 24-28% of mushroom residue; 24-28% of tea seed shells; 10-15% of pig manure; the preparation method comprises the following steps: collecting raw materials including waste tobacco leaves, mushroom residues, tea seed shells and pig manure, detecting and proportioning the raw materials, adding the bacillus subtilis into the raw materials, uniformly mixing, fermenting for thirty days, turning once every ten days during fermentation, and detecting again to obtain the multi-effect soil conditioner. The soil conditioner is applied to the ploughed farmland according to 100 kg / mu to 150 kg / mu and covered with soil, then the farmland covered with the soil is ploughed by 8 cm to 12 cm, flue-cured tobaccos are planted, and the conditioner can achieve the effects of improving the physical and chemical properties of soil, promoting the growth and development of the tobaccos, improving the yield and quality of the tobacco leaves and enhancing the stress resistance of the tobaccos.

The invention provides a method for preparing a water fertilizer by using a sugarcane alcohol fermentation broth, and relates to the technical field of fertilizer preparation, the method comprises the following steps: (1) fermentation, (2) blending, and (3) dilution and filtration. The method has the advantages of being simple in process and easy to operate, the water fertilizer obtained through the method can be applied to various crops in a drop irrigation mode and other root application modes, and the obvious effects of soil improvement, growth promotion, disease resistance, yield increase and the like are achieved.

The invention discloses a comprehensive stress-resistant crab screening method which comprises the following steps: preparing a breeding system, monitoring a breeding environment, putting to-be-screened adult crabs into the breeding system for temporary breeding after the breeding environment is monitored to be qualified, and ensuring that the crabs are not subjected to external stress; and sequentially screening the ingestion recovery speed and the defense behavior after stress, and selecting high-quality crab parents for breeding. By means of a behavioral physiology method, the scientific and reasonable screening method is designed by means of the fact that the growth state, ingestion recovery after stress and defense behaviors of the crabs are closely related to individual environment adaptability, healthy crabs high in stress resistance and appetite can be simply, rapidly and efficiently obtained, and the screening method has important significance on sustainable breeding of the crabs.

The invention discloses a polyculture method of macroalgae and siganus siganus. By changing a single culture mode, space resources of the whole water body are utilized to the maximum extent, and the water body utilization rate is increased. The macroalgae are bred in the middle-upper water area of the pond through the net cage, sufficient sunlight in the middle-upper water area is fully utilized for growth of the macroalgae, the space under the net cage serves as a place for fish to hide and inhabit, a comfortable environment is provided for fish breeding, fish stress is reduced, and diseases are reduced. And the macroalgae and the cultured fishes are cultured in an isolated manner through the netting, so that the amount of algae ingestion of the fishes can be controlled, healthy growth of the macroalgae is ensured, and collection of the macroalgae is facilitated. The differentiation of the ecological niche enables the fishes and the algae to be mutually beneficial and coexist in the same water body.

The invention relates to the technical field of functional agricultural films, and specifically discloses an agricultural film with improved light quality and temperature increase and a preparation method thereof. The agricultural film comprises the following raw materials: terephthalic acid, adipic acid, ethylene glycol, 1,4-cyclohexanediol, a fluorescent composite material, a catalyst and an auxiliary agent. The preparation method comprises the following steps: uniformly mixing terephthalic acid, adipic acid, ethylene glycol, 1,4-cyclohexanediol and the catalyst, and then, under the protection of an inert gas, performing an esterification reaction for 3-5 hours, heating the mixture for a polycondensation reaction for 1-3 hours, and cooling the mixture to obtain a polyester material. The polyester material, the fluorescent composite material and the auxiliary agent are uniformly mixed, extruded into granules, and then film-blowing is performed using a film blowing machine. The agricultural film prepared by the invention has low hygroscopicity, high light transmittance, good processing performance, and excellent rigidity, heat resistance, flexibility, impact resistance and light conversion effect.

The invention relates to a microbial water body substrate modifier and application thereof. The microbial water body substrate modifier comprises the following components: compound microbial powder, zeolite powder, shell powder and polyferric sulfate, the compound microbial powder comprises bacillus powder and lactic acid bacteria powder. The microbial water substrate modifier can effectively realize rapid bottom modification of aquaculture water, improve water quality, optimize aquaculture environment, reduce diseases and promote healthy growth of aquaculture animals. Wherein the bacillus can flocculate and settle residual organic matters such as feed, animal waste and the like in the culture water body by utilizing the flocculation effect of the bacillus, and the physical adsorption components, namely the zeolite powder and the shell powder, and the chemical adsorption component, namely the polyferric sulfate are synergistically matched, so that suspended organic matter large particles in the water body are effectively adsorbed and settled; and the organic matters are jointly degraded through the common graded degradation effect of the bacillus and the lactic acid bacteria, so that the effects of improving the substrate of the aquaculture water body and promoting the healthy growth of the aquaculture animals are achieved.

The invention relates to a plant-based insect-repellent anti-freezing agent and a preparation method thereof. The plant-based insect-repellent anti-freezing agent is prepared from the following components: pyroligneous liquor, organic silicon, amino acid calcium, amino acid zinc, boric acid and sodium humate. According to the invention, the wood vinegar is prepared by adopting frigid broad-leaved woods, especially oak wood, as raw materials through dry distillation and extraction, so that the wood vinegar has anti-freezing components, and meanwhile, trace elements such as silicon, calcium, boron and zinc are added, so that the cell thickness can be increased, the toughness of cell walls can be enhanced, the anti-freezing capability of plants can be improved, and various trace elements are added; the preparation has the functions of sterilization, insect repelling, insect control and disease resistance, especially contains phenolic substances, has a special cigarette smell and is used for repelling snails and other soft insects; beneficial microorganism activity of water and soil is improved, and crop growth is promoted; the yield and quality of crops are improved; the fertilizer can be mixed with pesticides and chemical fertilizers for use, the efficacy of the pesticides and the chemical fertilizers can be improved, and pesticide residues are degraded; the insect-repelling and anti-freezing effects of various crops are effectively improved, the cold resistance is enhanced, and the crops are prevented from being frozen to reduce the yield.

The invention relates to the technical field of seedling cultivation. The invention provides a Korean pine seedling culture medium. The Korean pine seedling culture medium comprises the following components in parts by weight: 40-60 parts of waste mushroom bran, 12-16 parts of sand manure, 8-13 parts of perlite, 22-30 parts of turf, 15-20 parts of decomposed forestry and agricultural residues, 3-5 parts of volcanic rock powder and 1-2 parts of a complex microbial inoculant. By adopting the culture medium, sufficient nutrients can be provided, and rooting and growth of Korean pine seedlings are promoted; meanwhile, the air permeability, water drainage and micro-ecological balance of the substrate can be well maintained, and guarantee is provided for growth and development of Korean pine nursery stocks.

The invention discloses a flue-cured tobacco upper leaf nutrition regulation and matched flue-curing method, which comprises the following steps: S1, primary spraying: spraying a leaf surface regulator I in 3-5 days after middle tobacco leaves are mature and harvested; s2, secondary spraying: spraying a leaf surface conditioning agent II 1-2 days before the upper tobacco leaves are mature and harvested; s3, baking: baking by adopting a baking process of'one low, one high and one long 'in a yellowing period, 'one slow, one low and one long' in a color fixing period and'one slow, one long and one low 'in a stem drying period; the method can effectively improve the quality and baking characteristics of the upper fresh tobacco leaves, reduce diseases of the upper tobacco leaves in the field, and improve the quality of the baked upper tobacco leaves.

The invention belongs to the technical field of fertilizer preparation, and relates to a compound fertilizer for efficiently preventing and controlling rice blast. The compound fertilizer comprises the following raw materials: a plant-source organic fertilizer, an animal-source organic fertilizer, humic acid, a functional carrier and bacillus subtilis, the plant-source organic fertilizer provides effective components such as sulfur compounds and glucosinolate, and the functional carrier can provide silicon for rice. The compound fertilizer for efficiently preventing and controlling the rice blast, prepared by the invention, not only can provide comprehensive nutrients for the growth of rice, but also can enhance the prevention and control effect on the rice blast by utilizing antibacterial and antifungal compounds contained in the plant source organic fertilizer.