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 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 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 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 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 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 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 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.