300 results about "Freeze injury" patented technology

The invention discloses a plant antifreezer and its preparation method. The plant antifreezer is preparegggggd from the following components of: by weight, 0.5-0.97% of glucose, 0.5-0.97% of cane sugar, 0.2-0.5% of potassium dihydrogen phosphate, 0.18-0.21% of novel monomolecular lipid film, 0.06-0.17% of paclobutrazol, 0.2-0.33% of amino acid, 0.02-0.05% of 6-benzylamino-purine, 0.01-0.05% of rapin, 46-48.4% of glycerin and 48.6-51% of water. The plant antifreezer provided by the invention is nontoxic and harmless, doesn't pollute the environment, and can be directly sprinkled on plant leaf surfaces, flowers and flower bus. The preparation method is simple and requires low cost. Effective antifreezing period can reach 15-20 days. By the adoption of the plant antifreezer, lower temperature freeze injury resistance of plants can be enhanced and the freeze injury can be rapidly mitigated after freeze injury. The plant antifreezer provided by the invention can be used to form a protection film on the surface of a plant and protect the plant from cold, and has an effect of preventing diseases.

The invention relates to a pesticide composition for relieving the phytotoxicity of herbicide. Effective components are a plant growth regulating agent and active polysaccharide, wherein the plant growth regulating agent is any one or a mixed agent of two of compound nitrophenolate and diethylaminoethyl hexanoate; the active polysaccharide is any one or a mixed agent of two of chitosan oligosaccharide and poly-glucosene; and the pesticide composition comprises the effective components in parts by weight of 0.05-90.0 parts of the plant growth regulating agent and 0.05-90.0 parts of the active polysaccharide. The pesticide composition comprehensively utilizes the synergism effect of the plant growth regulating agent and the active polysaccharide to resist disease source force and relieve the phytotoxicity of the herbicide. The pesticide composition is further applicable to crop exogenous damages including hormone phytotoxicity, low-temperature frozen injury, salt alkaline injury and the like, and also can be used for crop diseases of crops virus diseases, verticillium wilts and the like.

The invention discloses a compound plant anti-freezing agent and a preparation method thereof, aiming at the problems of single function and short protection period of the traditional plant anti-freezing agent. The compound plant anti-freezing agent comprises the following ingredients: 8-12% of a film-forming agent, 4-6% of saccharide, 10-16% of an anti-freezing reagent, 0.8-1.6% of an anti-freezing element, 4-6% of a micro element fertilizer, 0.2-0.4% of vitamin, 0-2% of a growth regulating agent, 1.2-2% of a surfactant and 60% of magnetized water. The compound plant anti-freezing agent is characterized in that the magnetized water is used for replacing common water to improve the activity of the anti-freezing agent. On one hand, one layer of protective film can be formed on the surface of the plant so as to perform the functions of resisting cold, preventing freezing and reducing transpiration water loss. On the other hand, the content of saccharide in plant cells can be improved, the activity of plasma membrane ATP (adenosine tTriphosphate) enzyme is increased, the phenomena of freezing in cells and cell freezing dehydration are avoided, and therefore the influence on the plant by freezing injury is effectively lowered.

The invention belongs to the technical field of plant propagation, in particular to a Chinese rose or rose rapid propagation method by utilizing a non-thorn multiflora for no-root grafting. The method includes 1, shearing a branch of an annual non-thorn multiflora, cutting the branch with the length of 15 to 20 cm, and keeping 1 to 2 buds to serve as grafting rootstocks; 2, selecting an annual or less annual Chinese rose or rose to serve as scions, cutting the Chinese rose or rose with the length of 10 to 15 cm, and keep 1 to 2 buds; 3, grafting the scions to the rootstocks by the grafting method, tying through a plastic film tightly, and cutting cuttings into growing matrix; 4, shielding, moisturizing and preventing the cuttings from freezing injury; when buds sprout in the next year, keeping the buds sprouted on the scions, and removing the buds sprouted on the rootstocks; 5, transplanting obtained cutting seedlings to the field after 45 d. By the aid of the method, survival rate is high, growth potential of the seedlings is strong, and the seedlings can be propagated annually.

The invention provides a tunnel anti-freezing dehumidification system, and belongs to the technical field of tunnel engineering. The tunnel anti-freezing dehumidification system solves the problems that an existing tunnel is low in temperature and high in humidity. The tunnel anti-freezing dehumidification system comprises a plurality of solar heat collection pipelines and a plurality of electric heating pipes I, wherein the solar heat collection pipelines are arranged at a tunnel portal, the electric heating pipes I are arranged inside a tunnel, one end of each solar heat collection pipeline is a closed end, and the other end of each solar heat collection pipeline is connected with a heating pipeline; electric heating pipes II are further arranged in the solar heat collection pipelines and connected with a storage battery pack II; the electric heating pipes I are evenly arranged on the two side walls inside the tunnel and connected with a storage battery pack I; a solar cell panel and a windmill set are also arranged at the tunnel portal, wherein the solar cell panel is connected with the storage battery pack I, and the windmill set is connected with the storage battery pack II. The tunnel anti-freezing dehumidification system can heat the tunnel so as to prevent rails from freeze injury and can dehumidify the tunnel so as to prevent the rails from rotting at the same time.

The invention discloses a railroad bed repair method without affecting existing running conditions. The method comprises the following steps of: determining the destroy section position and the destroy type of a bed; drilling grouting holes on two sides of the destroy section bed; determining a grouting method and a grouting material according to the destroy type and the destroy section position; and grouting the grouting material into the bed by using the grouting method through the grouting holes. The construction of the scheme does not occupy the railway running space, does not affect normal running of the railway, and can perform reinforcement from the surface of the bed to the deep place of dozens of meters below the bed. The foundation and the ground surface do not need to be dug during construction, so the method has low labor intensity, high mechanization degree and short construction period, effectively treats frost boiling, sinking, extrusion, freezing injury and the like, improves the bearing capacity of the bed and improves the drainage resistance of the bed.

The invention provides a method for improving quality of kiwi fruit and special high-quality fruit comprehensive agents. According to the method, a high-quality fruit agent No.1 capable of increasing color, sugar, hardness and yield and preventing diseases is used after fruit picking, before and after blooming an during base fertilizer application; a high-quality fruit agent No.2 capable of thickening cell walls and increasing cell density is used in a fruit swelling period, a fruit strengthening period and a fertilizer application period, wherein weight ration of the high-quality fruit agents No.1 and No.2 to water is 1:400-600, the high-quality fruit agent No.1 can be sprayed on leaves or applied to soil once after fruit picking, before and after blooming an during base fertilizer application, the high-quality fruit agent No.2 can be applied twice, once every a half month, in the fruit swelling period, the fruit strengthening period and the fertilizer application period. Through adoption of the method and the special high-quality fruit comprehensive agents, the internal quality and external fruit shape, color, storability and freeze injury resistance of kiwi fruit can be improved, the use is convenient, the cost is reduced, kiwi fruit trees become strong and can bloom and bear fruits easily, the quality of fruits is improved greatly, the disease resistance is enhanced and yellows can be prevented and controlled.

The invention relates to the technical field of cytobiology, and particularly relates to a hemopoietic stem cell cryopreserving solution, and a hemopoietic stem cell cryopreserving method. The cryopreserving solution includes following raw materials by weight: 10-20 mL of dimethyl sulfoxide, 6-10 g of hydroxyethyl starch, 4-8 mL of a cell culture medium, 6-10 mL of human serum albumin, and 60-100 mL of human autologous plasma. The formula of the cryopreserving solution is simple, and the raw materials are cheap. The cryopreserving solution can effectively protect hemopoietic stem cells from freezing injuries, is high in safety and low in cell injuries, can increase the resuscitation survival rate of hemopoietic stem cells. The survival rate after resuscitation can be 96% or above, and after resuscitation, the cell viability is high, the quantity of cell proliferation is high, the cells are not liable to age, physiological functions and biological characteristics of the hemopoietic stem cells after resuscitation can be ensured, and microbe detection indexes meet requirements. The survival time of the hemopoietic stem cells is prolonged.

The invention discloses a preparation capable of improving the cold resistance of tea trees and a preparation method for the preparation. Late spring cold greatly affects the production of tea, but an effective cold-resistant agent which ensures that the tea trees are free from freezing injury is not invented at present. The preparation mainly comprises bamboo vinegar, physiological cold-resistant substances, a growth promotion substance, an acidity regulator and the like. The preparation method comprises the following steps of: 1, taking the required bamboo vinegar in a proportion, adding a lot of trace elements which are required to be mixed, and stirring until the trace elements are dissolved; 2, dissolving physiological cold-resistant substances which are required to be mixed such as abscisic acid into absolute ethanol; 3, mixing a solution obtained in step 1 and a solution obtained in step 2, adding a proper amount of acidity regulator, regulating until the PH value is appropriate, stirring until the acidity regulator is dissolved, adding other physiological cold-resistant substances, and stirring until the physiological cold-resistant substances are dissolved; 4, dissolving a growth hormone which is required to be mixed into hot absolute ethanol, and fixing the volume by using the bamboo vinegar; and 5, mixing a solution obtained in step 3 and a solution obtained in step 4, and uniformly blending to obtain the preparation. The preparation is characterized in that a natural organic substance is taken as a main raw material, and the preparation can be safely used, does not pollute the environment, and can remarkably improve the cold resistance of the tea trees.

The invention discloses a tissue sample preservative solution used for preserving tissue samples, such as fat, umbilical cords, placentas and the like, after collection and before separation. The tissue sample preservative solution mainly comprises following components: high-glucose DMEM dry-powder culture medium, sodium bicarbonate, DMSO, dexamethasone, insulin, penicillin, streptomycin, amphotericin and a heparin sodium injection. The high-glucose DMEM dry-powder culture medium and the sodium bicarbonate are used for maintaining osmotic equilibrium among cells inside and outside tissue, maintaining a pH value, maintaining a moistening situation of the tissue and providing nutritional components. The DMSO is a freeze-storage protective agent and can prevent freeze-injuries on the tissue samples. The dexamethasone can inhibit immunization and protect activity of stem cells in the tissue sample; the insulin can promote absorption and utilization of the tissue sample to glucose. The penicillin, the streptomycin and the amphotericin can prevent pollution from bacteria and moulds and can eliminate pollution which has occurred. The heparin sodium injection can prevent blood solidification in the tissue samples and increase a yield of the stem cells. The tissue sample preservative solution is simple in components, is low in cost, is convenient to use, can maintain activities of the stem cells in the tissue samples, such as fat, umbilical cords, placentas and the like, and can greatly reduce a time limit from collection to preparation of the tissue samples.

The invention relates to a plant freezing injury resistant nutrient solution containing potassium hydroxide hydrolysate of plant seed dregs and peat, phosphoric acid, a microelement fertilizer and polyatomic alcohol and a preparation method thereof. The nutrient solution has the functions of promoting photosynthesis of plants, reducing the moisture in plant cells, preventing membrane lipid from being converted from liquid to gel at low temperature, has the advantages of reasonable formulation, low energy consumption in production, simple and convenient production technique, convenient use, increase of the crop output, reduction of the labor intensity, and the like, and has wide application in the fields of agriculture, forestry and the like.

The invention discloses a device for culturing porphyra tenera in a deep water area. The device comprises a plurality of pairs of brackets, cylindrical foamed buoys, and a cultivation curtain for culturing porphyra tenera; two cylindrical foamed buoys are bound to a pair of brackets through vinylon ropes; holes are drilled in two ends of each bracket; a tied rope passes through the through holes in two ends of each pair of brackets to fix the brackets; two ends of the cultivation curtain are tied to brackets which are adjacent to each other and in different pairs; the plurality of brackets, the foamed buoys bound on the bracket, and the cultivation curtain tied on the brackets form a row of porphyra tenera culturing float raft. According to the device, the full-floating raft type culturing technology is adopted, and thus the interference of float sludge and wild alga can be obviously reduced, and the disease incidence can be greatly lowered down; the device is suitable for cultivation in the deep water area; the net can be sunned actively to avoid freezing injury; bamboo brackets for fixing the foamed buoys are wrapped with a layer of fiberglass materials, and therefore, the strength of the traditional bamboo poles can be improved, the corrosion of seawater to the bamboo poles can be reduced, and as a result, the service life of the bamboo poles can be obviously prolonged, and as a result, the cost can be decreased.

The invention provides an anti-frost and anti-freezing apparatus which can solve the difficulty of effectively increasing temperature near crops in an energy-saving manner. For the anti-frost and anti-freezing apparatus, a fan at a high position blows down warm wind from a high place to a low place, and a fan at a low position blows wind at a substantially horizontal direction. A garden field is provided with a structure which has a heater. The fan at the high position is workable only when the temperature at a high place where a thermal inversion layer happens is higher than the temperature near crops. Subsequently, the heater is operated when the temperature near the crops is further lowered. On the contrary, when the temperature at the high place where the thermal inversion layer happens is below the temperature near the crops, the fan at the high position is not operated, and the heater and/or a heater at a low position are/is operated. Warm wind is blown at a substantially horizontal direction so as to prevent frost and freeze injuries.

The invention discloses a spraying agent for winter protection of plant trees. According to the formula, the spraying agent comprises the following components in percentage by weight: 20% of calcium carbonate, 5% of titanium dioxide, 2% of ethylene glycol, 13% of a cationic styrene-acrylic emulsion, 57% of water, 2% of calcium polysulfide and 1% of sheep grease. 1% of ethylicin or 1% of quintozene is used to replace calcium polysulfide to achieve the same effect. The using method comprises the following step: at the time of the year when autumn changes into winter, uniformly spraying the spraying agent by a pesticide spraying device or manually on the surface of limbs of the plant trees. The method disclosed by the invention has the beneficial effects of effectively preventing various fruit trees and plant trees of greening tree species such as blueberries and sweet cherries from sprouting in winter, greatly alleviating freeze injury of the plant trees, preventing and treating diseases of limbs of the plant trees, accelerating old wounds of the limbs to heal, and protecting the plant trees for three years by spraying once. Compared with conventional whitewash agents, the spraying agent has remarkable advantages.

The invention discloses a pesticide residue degradation agent, relating to a disinfectant. The pesticide residue degradation agent consists of the following substances in parts by weight: 56 to 84 parts of water, 15 to 28 parts of amino acid, 1 to 5 parts of glutathione, 4 to 13 parts of beneficial microbial bacteria, 1 to 2.2 parts of borax, 0.6 to 2.4 parts of calcium sulfate, 0.2 to 0.8 part of magnesium sulfate, 0.5 to 1.7 parts of zinc sulfate, 4 to 9 parts of potassium sulfate, 0.2 to 0.7 part of frankincense, 0.2 to 0.5 part of radix bupleuri, 0.25 to 0.6 part of honeysuckle, 0.2 to 0.55 part of rhubarb, and 0.1 to 0.3 part of gentian. The pesticide residue degradation agent has the advantages of improvement of soil, continuous cropping resistance and strong stress resistance, significantly reduces the usage of chemical fertilizers and pesticides, greatly improves the quality and taste of agricultural products, achieves an obvious effect of increasing both production and income, removes pesticide injuries and herbicide residues, has a special effect on chilling injuries and freezing injuries, and can degrade poisonous gases.

The invention relates to a fireproof thermal-insulation layer of a tunnel and a construction method thereof, wherein the fireproof thermal-insulation layer comprises a polyurethane thermal-insulationlayer connected with two linings of the tunnel and an external fireproof layer, wherein the fireproof layer is made by pressing one or two kinds of medium-alkali glass fiber cloth and non-woven fabricwhich are taken as basal materials and waterproof and fireproof components. The fireproof thermal-insulation layer of the tunnel can effectively solve the problem that the fire prevention and the thermal insulation are difficult in atrocious climatic environment areas, such as northwest parts in China, has excellent fireproof performance, good thermal insulation performance and favorable waterproof performance and reduces the freezing injury to the tunnel. The invention also provides the construction method of the fireproof thermal insulation layer of the tunnel, which is convenient, rapid and firm.

The invention provides a wide zero tillage fertilizing seeder which comprises a machine frame, an universal drive shaft and a suspension arm are mounted at the front end of the machine frame, a speed changing box, a fertilizer box and a seed box are mounted at the middle part of the machine frame, a rotary blade is mounted at the bottom of the machine frame, the rotary shaft is connected with the output shaft of the speed changing box, the cutting edges of the rotary blade are sawtooth-shaped, a suppress wheel carrier is mounted at the rear end of the machine frame, and suppress wheels are mounted on the suppress wheel carrier; a fertilizer conveying tube is arranged at the bottom end of the fertilizer box, a fertilizer conveying tube is arranged at the bottom end of the seed box, the bottom end of the fertilizer conveying tube is lower than the bottom end of the seed conveying tube, and the fertilizer conveying tube and the fertilizer conveying tube are mounted on the machine frame through a bracket. The arrangement of the saw tooth on the rotary blade can increase the cutting strength to straws or weeds, smash straws or weeds forcefully, avoid the increasing of the number of the rotary blade, keep larger bandwidth, and is beneficial to the growth of crops in the future, ventilation and light transmitting between the lines, increasing of yields, especially in winter, permeability of the soil is decreased, so that the temperature decreases slowly, and the crop freeze injury is avoided accordingly.

Disclosed is an easy-to-assemble freeze protection cover for plants. The freeze protection cover comprises a plurality of base units which are combined together in an end-to-end connection manner, a vertical rod is inserted in each base unit, and a heat preservation pad is fixed on each vertical rod and surrounds one plant by a circle. The freeze protection cover is easy to assemble, good in heat preservation effect, and reusable and not easy to wear and can be assembled without skilled workers, a heating function can be started when it is extremely cold, and freezing injury to precious or tender plants can be avoided.

The invention discloses a trunk whitewashing composition, a trunk whitewashing agent containing the trunk whitewashing composition, and application. The composition is composed of hydroxypropyl methyl cellulose and an ethylene-vinyl acetate copolymer, wherein the weight percentage of vinyl acetate in the ethylene-vinyl acetate copolymer is 70 to 95%. In the trunk whitewashing agent, the mass percentage of the composition is 1 to 70%, and the rest components of the trunk whitewashing agent are accessory materials. All the components of the trunk whitewashing composition show substantial synergistic interaction; and the trunk whitewashing composition can effectively alleviate occurrence of phenomena like overwintering freeze injury, sunburning and sprouting and improves the growth conditions of plants. The composition or the trunk whitewashing agent containing composition has the advantages of environment friendliness of each component, stable quality, a small usage amount, a wide application scope and convenience and safety in application.

The invention relates to a device for testing early frost heave deformation of cement concrete and a method thereof, which solve the problem of large precision difference of test results due to ambient temperature influence in the prior art. The device is characterized in that one end of a cable ties an upper end of a sealing bag, the other end is connected with an upper end of a container B through a pulley, and a lower part of the container B is immersed below a water surface in a container C. The testing method comprises the following steps: placing the sealing bag in freezing liquid, continuously adding fine sand in the container B, wherein the top of the container B and the sealing bag are in a same height, and recoding height of the liquid surface in the container C; and when a buoyancy added value of the container B in the container C is equal with the buoyancy added value generated by expansion of the sealing bag, performing conversion to obtain volume swelling capacity generated by concrete freezing by monitoring a difference value of water scale values H in the container C. The method is capable of evaluating freeze injury damage degree by monitoring the early frost heaveamount of concrete, and performing real-time monitoring on volume deformation of frozen concrete, and precision is high.

The invention discloses microbial fertilizer for rice. The microbial fertilizer comprises the following components in percentage by weight: 20%-30% of microbial bacteria, 10%-20% of diatomite, 15%-20% of an assistant and 20%-28% of soluble starch. The microbial bacteria comprise endophytic bacillus subtilis and endophytic bacillus licheniformis by a weight ratio of 7:1. The invention further discloses a method for preparing the microbial fertilizer. The method comprises cultivation of the microbial bacteria and preparation of the microbial fertilizer. The invention has the advantages that freeze injury of rise in a seedling stage is prevented and treated while nutrition is provided to rice.