62results about How to "Reduce frost damage" patented technology

The invention discloses a kiwifruit tree planting method. Connected greenhouses are used for cultivation, greenhouse films and arrangement of the greenhouses are adjusted along with change of seasons, the four-prevention measures including anti-freezing measures taken in winter and spring, rain sheltering and disease preventing measures taken in the rainy season, and cooling and sun blocking measures and windproof measures taken in midsummer are adopted, matched labor-saving tree cultivating management is performed, the capacity for coping with extreme weather in rainy and high-temperature areas in the south is effectively improved, and the high temperature and high humidity disease problem and the like which are difficult to solve in open field cultivation and traditional facility cultivation are solved. Due to the adoption of the method, the kiwifruit disease transmission route can be effectively cut off, input cost is low, manpower is saved, the survival rate of kiwifruit trees reaches 95.2%, the average single weight of red kiwifruits can reach 86 g under the situation that no swelling agents are applied, and the largest single fruit weight reaches 103.5 g; the soluble solid reaches 17.4% to 19.1%; the fruit cleanness is obviously improved, use of swelling agents and high-poison and mediate-poison pesticide is effectively eradicated, and quality safety of the fruits is guaranteed.

The invention discloses a whitewashing agent applied to the protection of tree trunks and application. The whitewashing agent comprises the following components in percentage by weight: 40 to 45 percent of calcined lime, 2 to 3 percent of lime sulfur mixture stock solution, 3 to 6 percent of lime sulfur mixture residues, 2 percent of salt, 0.5 percent of grease and the balance of water, wherein the lime sulfur mixture residues are a mixture which mainly contains silicon oxide. A preparation method for the whitewashing agent comprises the following steps of: adding the water and lime hydrate into a reaction kettle, and heating and stirring continuously for later use; putting the calcined lime into a hot-water boiler, and dissolving to prepare lime milk solution, putting sulfur powder which is blended to form paste in advance, stirring and mixing while adding the pasty sulfur powder for 40 to 60 minutes until liquid medicine has a rufous color, and the liquid surface has a layer of membrane, cooling the liquid medicine and collecting supernatant; and mixing the two liquid mixtures, heating, stirring and cooling to obtain the whitewashing agent. By applying the whitewashing agent, fruit tree barks can be prevented from being cracked, the resinosis can be avoided, the day-night temperature difference of branches can be reduced, and pathological changes caused by cold damage and insect attack can be prevented effectively, so the whitewashing agent can be used in various fields.

The invention discloses technology for establishing alfalfa grasslands at cold regions. The technology comprises the following steps of: seeding preparation, namely selecting stub land of which the preceding stubs are closely planted crops, ploughing and harrowing soil, manuring barnyard manure, and weeding; alfalfa seeding, namely seeding in early May, backfilling shallow soil, and raking the soil smooth before being frozen, wherein the seeding row spacing is 30 to 40 centimeters; the seeding ditch depth is 10 to 15 centimeters; the seeding quantity is 37.5 to 45kg per hectometer; and the seeding depth is about 2 centimeters; establishing management, namely weeding when the height of alfalfa plants is about 10 centimeters and then watering and manuring the barnyard manure or a phosphatic fertilizer; grassland mowing, namely mowing in early October in the first year, and moving the first stubs in middle July and the second stubs in late September in next year; and winter irrigation, namely performing winter irrigation before the soil is frozen. By selecting cold-resistant alfalfa varieties and suitable cold-resistant planting technology, the alfalfa can smoothly live through a first winter and spring, the aim of establishing the alfalfa grasslands at the cold regions is fulfilled, and the problems of leguminous forage deficiency and nutritional imbalance of domestic animals at the cold regions are solved.

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 cultivation technology for wide-ridge and furrow sowing of wheat in saline-alkali land, comprising the following steps: S1, soil preparation before sowing: after the previous crops are harvested, the land is rotary tilled by a rotary tiller, so that the tillage layer is evenly pulverized and there is no large soil Block, the land is leveled; S2, Irrigation: Check the soil moisture, and pour water into the land to keep the water layer at 0.5‑1cm; S3, Ridging: Use a ridge and seeding machine or manually to ridge the land, and the ridge width is required to be 30‑1 cm 50cm, the height of the ridge is 10-30cm, and the width of the ditch formed after the ridge is 15-25cm; S4, sowing: sowing in the ridge is carried out while the ridge is raised, and the wheat is planted on both sides of the ditch to form two rows of wheat, and the planting method can be Adopt artificial planting or mechanical planting; S5, management: after the wheat survives, apply 9-13 kg of urea per mu as seedling fertilizer, and apply 4-9 kg of urea per mu during the jointing stage of the wheat. While improving the utilization efficiency of saline-alkali land, the invention increases grain output, obtains higher economic benefits, and has good application prospects.

The invention discloses a method for comprehensive frost-prevention cultivation of winter-cropping potatoes. The method for the comprehensive frost-prevention cultivation of the winter-cropping potatoes comprises the following steps of (1) land selection and preparation, (2) planting time confirming, (3) seed potato proposal, (4) fertilizer application and seed sowing, (5) earth covering and fertilizer application, (6) field management, (7) harvesting. The method for the comprehensive frost-prevention cultivation of the winter-cropping potatoes has the advantages of being obvious in effect, simple in operation, low in cost and high in yield and reducing the pesticide using amount and is suitable for popularization and application.

The invention belongs to the technical field of crop anti-freezing, and discloses an anti-freezing agent for crops.The anti-freezing agent is prepared from, by mass, 15-20 parts of polyethylene glycol, 10-15 parts of N,O-carboxymethyl chitosan, 1-2 parts of soybean hydrolyzed amino acid, 1-3 parts of calcium lactate, 1-3 parts of monopotassium phosphate, 0.01-0.03 part of 6-benzylamino adenine, 0.2-0.4 part of brassin, 0.02-0.04 part of diethyl aminoethyl hexanoate, 0.01-0.03 part of abscisic acid and 1000 parts of distilled water.The anti-freezing agent is good in anti-freezing effect and cannot cause excessive growth of plants.

The invention provides a technology for controlling late spring coldness harm to winter wheat. According to a late spring coldness forming mechanism of winter wheat, good seeds and a good method are matched, preventive coping and remediation measures are combined, forming of cold injury of late spring coldness is controlled, late spring coldness harm is reduced, the technology includes the steps that late-spring-coldness-resistant varieties are selected, preventing measures are taken, it is hindered that cold air and currently warm air form a convection peak so that forming of cold injury of late spring coldness can be controlled, remediation measures are taken, the number of tillers is increased, quality of the tillers is improved, and stem loss is compensated for. By means of the technology, cold injury of late spring coldness is relieved or avoided, the number of the tillers per mu is increased, the number of spikes per mu is increased, the number of grains per spike and thousand kernel weight are increased, and the technology has great significance in the Huang-huai wheat region, in particular to late spring coldness control over wheat in the Shandong wheat region.

The invention discloses a freeze-proof culture method of tea plants in North China, which comprises the following steps: firstly, performing inter-row turfing, namely wheat straw turfing, between teaplant rows, covering the wheat straws with earth, and spraying water on the wheat straw, wherein the wheat straws are arranged in a star shape; secondly, applying organic fertilizer and phosphate fertilizer layer by layer together with the straws to be turfed and filling earth dug out back; and thirdly, applying topdressing at four times, wherein the nitrogen to phosphor to potassium ratio is 3:1:1. The culture method of the invention improves the ecological condition of a tea garden, keeps ground temperature, preserves soil moisture, saves water, preserves and fertilizers the soil, suppressesgrass, promotes roots, increases tea leaf yield, improves tea leaf quality, is simple in operation and easily acceptable to tea farmers and has a promising promotion prospect.

The invention discloses a rice leaf green-keeping anti-freezing agent, and a using method and application thereof. The rice leaf green-keeping anti-freezing agent comprises gibberellin and brassinolide, wherein the weight ratio of gibberellin to brassinolide is (50-200):(0.025-0.10). The rice leaf green-keeping anti-freezing agent can also comprise chitosan oligosaccharide according to a certain ratio. When the rice leaf green-keeping anti-freezing agent is used, an aqueous solution form is adopted, wherein an aqueous solution is prepared from 50 to 200mg / L of gibberellin, 0.025 to 0.10mg / L of brassinolide and 100 to 300mg / L of chitosan oligosaccharide, and is applied to rice leaves in a spraying way during the full heading stage to milk-ripe stage of rice, and 30 to 45 liters of aqueous solution is applied to each acre. The rice leaf green-keeping anti-freezing agent can be applied to prevent the hazard of low temperature damage in autumn after the filling of late rice, has leaf anti-freezing and green-keeping effects as well as the effects of promoting the photosynthesis of the rice and retarding the aging of the leaves, has remarkable yield increasing effects, is a novel rice culturing technology capable of ensuring the high and stable yield of rice, and is suitable for popularization and application.

The invention relates to the technical field of fruit tree planting, in particular to a cold-resistant nutritional agent for fruit trees and application thereof. The cold-resistant nutritional agent for the fruit trees is prepared from 10-14 parts of amino acid, 6-10 parts of calcium fertilizer, 6-10 parts of potassium fulvate acid and 2-5 parts of salicylic acid. According to the cold-resistant nutritional agent for the fruit trees, all the raw materials are compounded according to a preferred ratio, so that mutual cooperation and promotion of all the raw materials are realized, so that the cold resistance of the fruit trees in the flowering and fruit setting period in spring can be obviously improved, the fruit setting percentage of the fruit trees after the fruit trees are attacked by the cold spell in later spring is remarkably increased, and therefore the yield is increased, and the economic benefits of fruit farmers are guaranteed.

The invention discloses an anti-freezing technology for pomegranate trees. The anti-freezing technology for the pomegranate trees comprises the following steps: (1) selecting a land and building a garden; (2) building a windbreak; (3) performing flower thinning and fruit thinning; (4) harvesting in time; (5) trimming in winter and summer; (6) whitewashing trunks; (7) performing trunk ridging; (8) covering the garden with grass; and (9) performing pesticide protection. A small weather condition for reducing freeze injuries is created in the aspect of physical conditions and by building the garden and the windbreak, so that general freeze injuries are reduced; the growth potential of the trees is improved and the cold-resistant capability of the trees is enhanced by managing flowers and fruits and trimming in winter and summer; and extreme weather is responded comprehensively by the methods of whitewashing the trunks, performing trunk ridging, covering the garden with grass and performing pesticide protection, so that freeze injuries of the pomegranate trees are avoided and production loss is reduced.

The invention discloses an anti-freezing cable based on oil-filled wrinkles and a use method of the anti-freezing cable, and belongs to the technical field of cable protection. According to the anti-freezing cable based on the oil-filled wrinkles and the using method thereof, the external temperature of the cable is reduced, thus a memory alloy cladding is promoted to recover to a low-temperatureeasily-deformed phase state, and magnetic bulges wrapped by the memory alloy cladding are exposed; and the attraction effect of the magnetic bulges on a first magnet ring is utilized to pull a telescopic sliding barrel to move downwards, therefore, heat preservation oil in a hemispherical outer frame pushes the rubber sealing sheet open and then enters a gap between the hemispherical outer frame and a rubber outer wrapping film. On one hand, an ice layer outside the cable can be promoted to crack; on the other hand, the surface of a lotus leaf can be simulated by virtue of the convex deformation of the rubber outer wrapping film, the hydrophobicity of the surface of the cable is improved, an ice layer is promoted to fall off, water remaining on the surface of the cable is reduced, and theload of the cable is reduced, so that the possibility that the cable is crushed is reduced.

The invention discloses a north large-scale breeding pig house. In frigid winter, fresh air is subjected to waste-air preheating, ground-source preheating and attic preheating, fresh air after being preheated is heated through a heating device, the house feeding temperature of the fresh air is improved, and the heat supply cost is reduced. Multiple air feeding modes are adopted in the whole pig house, the ventilation level is fine, and operation is easy and convenient.

The invention relates to a planting method for increasing the wintering rate of timothy grass in a cold region. The planting method includes the following steps of sowing, wherein soil preparation, deep ditching sowing, shallow covering after sowing and sowing fertilizer application are conducted; cutting and fertilizer application, wherein cutting is not conducted in the sowing year, and fertilizer is applied just one month before local first frost; irrigation, wherein if the manual irrigation requirement is met, irrigation is conducted once after each fertilizer application, frozen water and regreening water are irrigated when the winter daily average temperature is lower than zero DEG C and after spring regreening respectively, and if the manual irrigation requirement is not met, natural rainfall is used for irrigation. Timothy grass is planted in the north of China, the plant wintering rate is increased to 95% or more from the original value smaller than 35%, the effect is remarkable, and the technical bottleneck of difficult wintering in large-scale cultivation popularization of timothy grass in the north and even northeast region of China is broken through successfully.

The invention relates to a processing method of frozen instant halogenated squid. The method comprises the following concrete steps of S1, soaking: cleaning cut and killed squid; then, performing soaking for 2 to 4h; S2, halogenation: putting drained squid into halogenation juice for halogenation; S3, drying: draining halogenation juice of halogenated squid; then, performing heat pump drying treatment, wherein the heat pump temperature of the heat pump drying treatment is 35 to 40 DEG C; the drying humidity is 45 to 50 percent; the air speed is 2 to 4m / s; the dryness time is 1 to 2h; S4, secondary seasoning: performing secondary seasoning on the halogenated squid subjected to heat pump drying treatment; S5, packaging and freezing: after vacuum package, conveying the halogenated squid intoa double helix freezer for freezing to reach the temperature of -18 DEG C. The processing method has the advantages that on the premise of ensuring the amusement and the convenient eating of squid products, the nutrition and health efficacies of the squid products can be effectively maintained; meanwhile, the flavor and the shelf life of the squid product can also be ensured; consumers can enjoy the delicacy and nutrition of the squid securely and relievedly.

The invention relates to the technical field of plant anti-freezing agents, and more specifically, relates to a plant anti-freezing agent containing organic matters and a preparation method thereof. The anti-freezing agent comprises organic matters such as sugar containing matters, plant active matters, functional matters, and the like. The raw materials are all organic matters, and are nontoxic and pollution-free. The anti-freezing agent can be used in any phase of the growth period of plants, has an anti-freezing function, can provide nutrients to plants, can effectively activate the activity of plants, and thus improves the resistance of plants. The adhesion performance of the anti-freezing agent is strong, so the ant-freezing agent is difficult to remove by rainwater. Moreover, the dissolving performance and permeability of the ant-freezing agent are good. After the anti-freezing agent enters plants, the anti-freezing agent can form a protective film on the inner surface of plants, the size of the pores of leaves is reduced on the premise that the breath of plants is not influenced, thus the water loss caused by transpiration is reduced, drought stress caused by low temperature stress is prevented; the freezing point of water on the leaf surface is reduced, the cell sap concentration is increased, metabolism of cells is regulated, and the damage of plants caused by cold environment is relieved.

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 the technical field of railway tunnel construction, in particular to an open cut tunnel waterproof and drainage system. The system involves a tunnel wall and a tunnel invertedarch, a central drainage pipe is arranged below the tunnel inverted arch, longitudinal drainage pipes are arranged on the two sides of the tunnel wall and arranged in the tunnel direction, multiple water permeable holes are formed in the upper portions of the longitudinal drainage pipes, and the longitudinal drainage pipes are connected with the central drainage pipe through transverse drainage pipes. According to the system, the back drainage capacity of an open cut tunnel lining can be enhanced, underground water is effectively drained, the water load around the tunnel lining is reduced, meanwhile, the anti-floating and cold-proof effects are achieved, the waterproof and drainage problems of the tunnel open cut tunnel lining in a high-water-level stratum in a cold region are solved, andthe freezing damage to the tunnel open cut tunnel is effectively reduced.

The invention provides an organic cultivation method of intercropping medicago hispida in myrica rubra forest. The organic cultivation method is characterized by comprising the following steps: (1) orchard site selection, (2) base fertilizer applying and soil preparation, (3) sowing, (4) field management: after emerging of the medicago hispida, spreading plant ash in an orchard, wherein the using amount of the plant ash is 40 to 50kg per mu; finely spraying and slowly irrigating during a seeding stage and a seedling stage with the extent that no obvious earth surface runoff appears each time; removing weed in the medicago hispida orchard manually; naturally controlling insect attack by using numerous natural enemies in low mountains and hills; (5) harvesting: harvesting the medicago hispida for several times in one growing season, wherein the harvesting should be flexibly carried out according to the growing trend and market supply and demand situation. Compared with the prior art, the organic cultivation method provided by the invention has the advantages that the land utilization rate is high and comprehensive economic benefit is high.

The invention provides a method for preventing freezing damage of citruses in winter in a northern marginal area of citrus planting, and relates to the technical field of citrus protection. The methodcomprises the steps of primary protection, base fertilizer application, garden cleaning in winter, earthing-up before frost freezing, grass covering, water irrigation before freezing, smoking anti-freezing, accumulated snow removal and the like, wherein during the base fertilizer application, arc-shaped or annular deep ditches are dug along the outside of the crown, and the ditch depth is 20 to 30 cm; fertilizers are applied or the fertilizers are spread and applied to the ridge surface; and then, the ridge surface is fully intertilled for 20 to 30 cm. All steps in the method cooperate with each other to achieve an obvious effect of preventing and controlling the freezing damage of the citruses in winter.

The invention discloses an air separation tower foundation structure. The air separation tower foundation structure comprises a foundation structure body, the bottom of the foundation structure body is connected with a pile foundation, an isolation waterproof layer for separating and layering of the foundation structure body is arranged in the foundation structure body, at least one ventilation pipe capable of isolating cold is arranged in the foundation structure body, an air separation tower connecting part is arranged on the foundation structure body, and comprises multiple cold isolation layers, and a surface layer is laid on the top of the foundation structure body. According to the air separation tower foundation structure, through multiple cold isolation measures, the air separationtower and the foundation structure body can be effectively isolated, the cold isolation effect is improved, the frost crack damage of the foundation structure body can be reduced, and the service life can be improved.

The invention discloses a method for alleviating the freezing damage to pear fruitlets. According to the invention, an antifreezing agent aqueous solution is sprayed before frost, wherein an antifreezing agent is any one or a combination selected from the group consisting of 6-benzylaminoadenine and salicylic acid. The method provided by the invention selects the antifreezing agent prepared from the 6-benzylaminoadenine and the salicylic acid, wherein the concentration of 6-benzylaminoadenine in an aqueous solution is 0.30 to 0.70 mg / L, and the concentration of the salicylic acid is 3.0 to 4.2mmol / L. The antifreezing agent is sprayed in 2 days before the frost, so the freezing damage to the pear fruitlets can be significantly alleviated. The antifreezing agent selected by the method provided by the invention can provide a theoretical basis and a practical guidance for prevention of late frost freezing damage to the pear fruitlets, and reduces accidental economic loss of fruit farmersdue to frost-freezing which frequently occurs before and after a pear flowering period.

The invention relates to a geopolymer-based thermal insulation mortar with water resistance and fire resistance. The geopolymer-based thermal insulation mortar comprises, by weight, 96.2 to 112.1 parts of an aluminum silicon material, 28.4 to 33.1 parts of an alkali activator, 66.0 to 77.0 parts of a modified lightweight aggregate, 12.2 to 14.2 parts of a polymer emulsion, 0.2 to 0.4 part of a toughening component, 5.2 to 6.0 part of an additive, and 82.8 to 107.5 parts of water; and 0.28 to 0.42L of foam is added into each one kilogram of a mixture of the above raw materials. The geopolymer-based thermal insulation mortar possesses high consistence retention rate, low layering degree, low dry density, high strength, excellent water resistance, A grade fire resistance, excellent thermal insulation performance, and excellent cracking resistance; the service life of the geopolymer-based thermal insulation mortar is as long as that of buildings; and the geopolymer-based thermal insulation mortar is especially to be used for building exterior wall external thermal insulation.

The invention discloses a loquat planting anti-freezing method and a monitoring and early warning system based on the Internet of Things. The monitoring and early warning system includes a field collector, a plurality of controllers arranged in the planting area, an integrated controller and a monitoring server, the field collector is connected with the controllers, and the plurality of controllers are respectively connected with the integrated controller, the integrated controller is connected with the monitoring server. The field collector comprises a micro control unit module, a sensor unitmodule, a transmission unit module, a display unit module and a power supply unit module, the sensor unit module, the transmission unit module and the display unit module are respectively connected with the micro control unit module, the monitoring server is provided with a comparison program module, a first judgment program module, a second judgment program module, a calling program module, a transmission device and a storage module. The system can effectively prevent the loquat planting from freezing damage, improve the planting efficiency, reduce the influence of the natural weather on theflowering and fruit setting period, and effectively guarantee the planting and harvesting.

The invention provides a method for preventing and treating flower rot of loquat, and relates to the technical field of the loquat cultivation. The method comprises the following steps: 1) in a flowerbud stage from the last ten-day of September to the beginning of October, spraying 45% of lime Sulphur or spraying 80% of mancozeb wettable powder or 75% of chlorothalonil wettable powder; 2) in a full-bloom last stage from the last ten-day of November to December, spraying 30% of difenoconazole or 50% of chlorotham wettable powder; 3) after a first blossom fall stage from the last ten-day of December to January, spraying 50% of isocarbamide wettable powder or 40% of pyrimethanil wettable powder by mass; and 4) in the first and middle ten-days of February in the next year, spraying 30% of difenoconazole or 80% of tebuconazole wettable powder. A scheme of the method is used, fruit clusters after the last ten-day of March are yellow, 95% of loquat spikes are healthy without a disease, freeze injury is greatly relieved, 6-8 fruits are set per spike in average, and a high yield is achieved.

The invention discloses a method for establishing alfalfa grasslands at cold regions, comprising the following steps of: seeding preparation: namely selecting stub land of which the preceding stubs oat or highland barley or rape are closely planted crops, ploughing and harrowing soil, manuring barnyard manure, and weeding; selecting alfalfa varieties such as gold queen, Algonquin, Alfaking, Juren201 and Gannong 1 which have strong cold resisting ability; alfalfa seeding, namely seeding in early May, and raking the soil smooth before being frozen, wherein the seeding row spacing is 30 to 40 centimeters, the seeding ditch depth is 10 to 15 centimeters, the seeding quantity is 37.5 to 45kg per hectometer, the seeding depth is about 2 centimeters and the thickness of soil cover is about 2cm; establishing management, namely weeding when the height of alfalfa plants is about 10 centimeters and then watering and manuring the barnyard manure or a phosphaticfertilizer; grassland mowing, namely mowing in early October in the first year, and moving the first stubs in middle July during bud stage or initial bloom stage in which stubble height is about 5cm, and the second stubs in late September at full-bloom stage in which the stubble height is 7-8cm in the next year; and winter irrigation, namely performing winter irrigation before the soil is frozen. By selecting cold-resistant alfalfa varieties and suitable cold-resistant planting method, the alfalfa can smoothly live through a first winter and spring, the aim of establishing the alfalfa grasslands at the cold regions is fulfilled, and the problems of leguminous forage deficiency and nutritional imbalance of domestic animals atthe cold regions are solved.

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 method for cold preservation and refreshment of freshwater fish, which comprises the following steps that: killed, cleaned and washed freshwater fish is soaked into a tea polyphenol acetic acid aqueous solution for 1.5 to 6 hours, drained and subjected to cold preservation and refreshment at the temperature of between 1 DEG C below zero and 8 DEG C below zero, wherein the tea polyphenol acetic acid aqueous solution contains the following materials in weight by percentage: 0.05 to 1.0 percent of tea polyphenol and 0.05 to 5.0 percent of acetic acid. The method not only has small freezing injury on the body of the freshwater fish, but also can further inhibit the propagation of body bacteria, retard the oxidation of fats, and increase the preserving effect on the basis of micro-freezing, and the storage period of the freshwater fish can reach 37 to 57 days. The method not only can be used for keeping freshwater fish products fresh, but also can be used in micro-freezing cold preservation technology for seawater fish and other meat products.

A kind of railway transportation container of biomass internet of things, the railway transportation container of described biomass internet of things has the environment regulation and control system in the box, it is characterized in that, the environment regulation and control system in the box includes micro-controller module, environment temperature and humidity measurement module, environment Temperature adjustment control module, environmental humidity adjustment control module, environmental temperature and humidity fault diagnosis module, warning output module, serial port communication module, keyboard display module. The invention greatly improves the accuracy of the railway container in controlling the storage and transportation temperature and humidity of the biomass material, reduces freezing damage, and greatly saves the railway transportation cost.