Wuwei Minqin orange tree greenhouse market is still optimistic about other information. Irrigation drip irrigation is a dripper installed on the capillary to drip the droplets evenly and slowly into the soil near the root zone of the plant. It infiltrates and diffuses in the soil, and is absorbed by plant roots. The soil moisture is always in an unsaturated state, which makes the soil loose and airy, which is beneficial to plant growth. The principle of using hose drip irrigation is to irrigate less frequently, and the amount of secondary irrigation is 7-15 cubic meters / mu. Specifically: When filling water, first close the straw valve of the fertilizer, then open the valve to a large size, and then connect the pressurized water source to fill the water. When fertilizing water, close the valve and open the switch of the straw of the fertilizer. The filter is fixed on the bottom of the fertilizer solution bucket, and the fertilizer can be fertilized by connecting the water source. After the fertilization is completed, the switch on the suction pipe must be turned off, and the valve must be opened to continue irrigation, so as to flush the residual fertilizer in the pipe. Industry management Wuwei Minqin This kind of greenhouse is an assembled structure, which is easy to construct and can be dismantled and moved. It has a large space in the shed, less shading, and is easy to operate. It is conducive to the growth of concrete. The components are resistant to corrosion, have high overall strength, and are capable of withstanding snow and wind With a service life of more than 15 years, it is the current advanced form of greenhouse structure. The following mainly introduces the structure, varieties and installation of galvanized steel pipe assembled plastic greenhouses. The safety requirements are scientific formula, the surface does not absorb moisture, the non-halogen returning advanced modification technology and the scientific good process, solve the shortcomings of the magnesite greenhouse poles are easy to absorb moisture and return to halogen, poor water resistance and easy deformation, so that the greenhouse frame at high temperature In the high humidity environment, there are few drops of water and frost, and the disease and insect pests are reduced. Market trends The calculation of the relative operating costs of Hegang has greatly reduced labor costs for a planting enterprise of a certain size. The investment and operation of equipment can be completely calculated from the saved labor costs. Long, light labor cost savings are huge profits. Product line () Humidity conditions The film has strong airtightness, so the soil moisture evaporation and crop transpiration in the shed after the cover cause high temperature in the shed. If the ventilation is not performed, the relative humidity in the shed is high. When the shed temperature rises, the relative humidity decreases, and when the shed temperature decreases, the relative humidity increases. On sunny and windy days, the relative temperature is low, and on cloudy and rainy (foggy) days, the relative temperature increases. In the case of no ventilation, the relative humidity in the shed can reach 60-80% during the day, and is often around 90% at night, as high as. The appropriate relative humidity of the air in the shed varies according to the type of crop. Generally, it is required to maintain 50-60% during the day and 80-90% at night. In order to reduce the harm of the disease, the humidity at night should be about 80%. When the relative humidity in the shed reaches saturation, increasing the shed temperature can reduce the humidity. For example, when the humidity is 5 ° C, the temperature will decrease by about 5% for every 1 ° C increase in temperature. Reduced by 3-4%. When the moisture content in the air in the shed is not increased, when the shed temperature is 15 ° C, the relative humidity is about 7%; when it is increased to 20 ° C, the relative humidity is about 50%. Because the air temperature in the shed is high and the amount of soil evaporation is small, it is necessary to reduce the amount of irrigation in the winter and spring and cold seasons. However, when the temperature in the greenhouse is increased, or when the temperature is too high, ventilation is required, which will cause humidity to drop. Wuwei Minqin Greenhouse accelerates the transpiration of the crops, causing the plants to lack water and transpiration, or causing physiological disorders. Therefore, the shed must maintain appropriate humidity according to the requirements of the crop. Cultivation season and conditions The cultivation of plastic greenhouses is mainly spring, summer and autumn. Areas with low winter temperatures of -15 ° C to -17 ° C can be used for cold-tolerant crops in the shed for winter protection. Alpine areas and regions can be cultivated in greenhouses earlier. In northern areas, seedlings are grown in greenhouses in winter so that seedlings can be planted in greenhouses in early spring for early maturity cultivation. Sowing in summer, postponing cultivation in autumn, planting two crops a year. As the spring advances and the autumn delays, the greenhouse cultivation period is extended for two months. Some frozen areas in Northeast and Inner Mongolia were planted in spring, seedlings were pulled after autumn, and stubble was planted throughout the year. The yield per acre of cucumber was increased by 2-4 times that of open field. Heilongjiang Province has successfully grown watermelons in greenhouses. Northwest and Inner Mongolia frontiers have good weather throughout the year. Planting cold-resistant vegetables in greenhouses in winter sets a precedent for greenhouse cultivation in winter. In order to improve the rate of the greenhouse, early spring and late cultivation in autumn often adopt temporary heating in the shed, set up a curtain to protect against cold, build an impotence in the shed, add a small arch or middle shed, cover the film, and cover the straw around the shed. Cold insulation measures such as curtains, in order to extend the growing season, increase the number of planting stubbles, and increase yield. Wuwei Minqin Orange Tree Shed Market is still optimistic about the greenhouse: the cost is higher than the ordinary greenhouse, the structure is complicated, and the equipment can be installed. Quality improvement () The area of the greenhouse is comprehensively considered from factors such as light, temperature, water, fertilizer, gas, and seedling protection. The area of a single-type greenhouse in the southern region is more favorable to 400 square meters. The "North" (Northeast, Wuwei Minqin greenhouse) For galvanized steel pipes in North China and Northwest China, 600.800 square meters is appropriate. Multi-story greenhouses are relatively infrequent and the effect is not good, which is mainly not conducive to the adjustment of various cultivation environmental factors. Where is good
Wuwei Minqin orange tree greenhouse market is still optimistic about flower and fruit preservation: in spring, the temperature is low, tomatoes and spike flowers need to use hormones to protect flowers and fruit to improve early yield. Use phytoalexin 40PPM to point pedicels; eggplants 1-2 before flowering Sky (flare) point flower or spray with anti-fallin 15PPM; pepper can also be sprayed with anti-fallin. Flowers and fruits should be treated at a temperature below 15 ° C and above 15 ° C. Do not treat if there is sufficient light. The concentration should be strict and not too high to avoid side effects. Polyethylene high-foaming film is a white multi-bubble plastic film. It is 1 meter wide and 0.4-0.5 cm thick. It is lightweight and can be rolled. Its heat retention is similar to that of quilts. Greenhouse function classification According to the end-use function of the greenhouse, it can be divided into good greenhouses, experimental (educational) greenhouses, and commercial greenhouses that allow public access. Vegetable cultivation greenhouses, flower cultivation greenhouses, breeding greenhouses, etc. are all good greenhouses; artificial climate rooms, greenhouse laboratories, etc. are experimental (education) greenhouses; various ornamental greenhouses, retail greenhouses, and commodity wholesale greenhouses are commercial greenhouses. . It is advisable to choose to go beyond the frozen layer. The design of the greenhouse foundation is based on the geological structure and local climatic conditions, and the foundation of the cold region and the soil is relatively deep. Greenhouses that are not good all year are deeper than those that are good all year round. Ground bases filled with wool or river stones need to be covered with centimeter-thick ground beams. Masonry walls are built on the ground beams. Sandwich is filled with insulation materials such as benzene board and perlite. Expansion joints are recommended for walls with a length of more than 70 meters. The rear wall of the greenhouse should have fixed ventilation windows for winter ventilation according to the nature of the greenhouse. Before the masonry and capping of the wall of the rainbow greenhouse, the arch embedded parts should be lowered for the arch installation. The height of the greenhouse wall is determined by the span of the greenhouse. Generally, the height of the rear wall of the greenhouse is 8 meters and 5 meters. A height of 5 meters across the back wall of the greenhouse is 3 meters. Wuwei Minqin greenhouse can be divided into GLP622 single / multi-story combined type 6 combined 8 type GKW7430 thin film GSW8432 / 8430/825 greenhouse PC panel greenhouse according to model. Manufacturing cost (), air humidity regulation: Greenhouse air humidity change law: The plastic film is tightly sealed, the exchange of air in the greenhouse with the outside air is hindered, and the water vapor from soil evaporation and leaf transpiration is difficult to diffuse. Therefore, the humidity in the shed is high. During the day, under the condition of greenhouse ventilation, the relative humidity of the air in the greenhouse is 70-80%. It can reach over 90% on rainy days or after irrigation. The relative humidity of the air in the shed decreases as the temperature rises, often at night. The wet air in the shed condenses into a water film or water droplets and attaches to the inner surface of the film or the plants when it is cold. The steel-framed vegetable greenhouse has no column structure, which has a wide planting area and good lighting effect, which is convenient for mechanized operation. Inspection environment The greenhouse span of Heze is 4 12 meters, shoulder height is 18 meters, ridge height is 5-2 meters, length is 20-60 meters, arch spacing is 0.5-1 meters, and longitudinal rods (tubes) are connected to fix the whole. . Film rolling machine can be used for film ventilation, thermal curtain insulation, sunshade shading and cooling. Wuwei Minqin orange tree greenhouse market is still optimistic about glass greenhouses. Glass greenhouses are glass greenhouses. Create a brilliant polyethylene high foam film is a white, multi-bubble plastic film, 1 meter wide, 0.4-0.5 cm thick, light weight and volume, heat preservation and similar to the quilt. Finance Department
Wuwei Minqin's orange tree greenhouse market is still optimistic about materials as the source of greenhouse project engineering. To control the quality of the project, we must first control the selection of materials. For example, the steel components used in the greenhouse project are used to process and derust the high-quality steel. After hot-dip in the galvanizing plant, the quality inspection department will perform the test, and it will be shipped to the site for use after passing the test. Full range of "slope protection". After the "back roof" soil is leveled, the entire new plastic film is used to cover the back wall. Then, on top of the plastic film, a cover layer of non-woven fabrics and other sunscreen materials can ensure that the "slope protection" period is more than 4 years, and at the same time, it can prevent weeds, and avoid spreading insects and diseases at the air outlet, especially Viral disease. Later, the shed roof and the back wall roots are fixed by two east-west pulling steel wires, or covered with soil in woven bags every 1 meter. The marketing department's multi-building greenhouse is an upgrade of the greenhouse. In fact, this is a huge greenhouse. The original single-room room and the original single-room model greenhouse were connected by scientific means, reasonable design and materials. Or it can be understood as an expansion. Compared with traditional greenhouses, multi-story greenhouses and greenhouses are a bright spot, and their area is much larger than traditional greenhouses. Cultivation season and varieties: Tomato, seeded in early July, seedling age 30 days, planted in late August to September, harvested from October to December. Zheza No. 7 and Zaofeng were selected. Cucumber: broadcasted live from the end of July to mid-August and harvested from September to November. Varieties selected are Jinyan No. 4, Jinchun No. 4, Autumn Cucumber No. 1, Xia Feng, etc. Autumn tomatoes, flowers that bloom before mid-September, often fall due to high night temperature, and flowers that bloom after October, Wuwei Minqin Orange Tree Shed, and it is difficult to bear fruit due to low temperature. Therefore, it is necessary to use 10-15PPM anti-fallin spraying or 40PPM concentration to paint stalks to prevent falling flowers and fruits. Cultivation season and varieties: Tomato, seeded in early July, seedling age 30 days, planted in late August to September, harvested from October to December. Zheza No. 7 and Zaofeng were selected. Cucumber: broadcasted live from the end of July to mid-August and harvested from September to November. Varieties selected are Jinyan No. 4, Jinchun No. 4, Autumn Cucumber No. 1, Xia Feng, etc. Autumn tomatoes, flowers that bloom before mid-September, often fall due to high night temperature, and flowers that bloom after October, because of low temperature, are not easy to set fruit. Therefore, it is necessary to use 10-15PPM anti-fallin spraying or 40PPM concentration to paint stalks to prevent falling flowers and fruits. The main structure of the environmental plastic greenhouse to be tested must be capable of resisting at least level 8 winds, and generally requires a level of wind resistance of level 10. Because the greenhouse is in a high temperature and high humidity state during transportation, the surface of the component becomes one of the important factors affecting the service life of the greenhouse. In steel structure greenhouses, thin-walled steel is generally used as the main force structure, and its corrosion resistance is poor. Hot-dip galvanizing is a necessary condition for the surface treatment of greenhouses. The coating thickness reaches 150-200 microns, which can guarantee a 15-year service life. For greenhouses with welded wood or steel truss structures, surface treatment must be guaranteed once a year.