Zhumadian Pingyu glass greenhouse, which is more important. Plastic greenhouse structure. Plastic greenhouse temperature performance. Plastic greenhouse can fully solar energy, has a fixed thermal insulation function, and roll film to regulate the temperature and humidity in the greenhouse within a fixed range. Recommended Zhumadian Pingyu Species Information 1 Arched greenhouse details: Low-cost, durable vegetable greenhouses, with a width of 9 to 18 meters. The support uses cement columns, and the framework uses galvanized steel pipes or steel-plastic composite pipes for greenhouses. The roof is curved and covered with plastic film. It can be used to grow flowers, vegetables, seedlings, etc. this season. It can also be used to raise chickens and ducks. Arch sheds have poor thermal insulation at night in winter. In winter, mulch or mulch can be installed in the shed in northern areas to increase night temperature. Product survey steel structure mainly includes: greenhouse load-bearing structures and supports, joints, and solid parts provided to ensure structural stability. Project Weifang mulch. Plastic mulch can reduce soil water evaporation and is an important measure to reduce indoor air humidity. The information recommends the direction of the shed, that is, the shed heads are on the north and south sides, respectively. This orientation allows the crops in the greenhouse to be evenly distributed. Zhumadian Pingyu glass greenhouse, which is more important, the front slope of the solar greenhouse is covered with thermal insulation at night, and the east, west, and north are single-slope plastic greenhouses that enclose the walls, collectively referred to as sunlight greenhouses. Its prototype is a single-slope glass greenhouse, and the front-slope light-transmissive covering material has been replaced by a plastic film to form an early sunlight greenhouse. Solar greenhouses are characterized by good thermal insulation, low investment, and energy conservation, making them ideal for use in less-developed rural areas. Service is first () The direction of the greenhouse refers to the extension of the single-story greenhouse from east to west or from north to south, mainly considering the light intensity. In the winter in the high and cold area (latitude 350, north latitude, the east-west extension has an average increase of about 10% in light intensity than the north-south extension. However, due to the limited thermal insulation of the greenhouse, it cannot be cultivated in winter. Only autumn, spring and summer are good. The lighting conditions can basically meet the requirements, resulting in insignificant differences in yield. In addition, it is customary to cultivate the pupae in a vertical arrangement with the long direction of the greenhouse. Ridge and ridge cultivation in the north and south, the effect is slightly better. Market price
Zhumadian Pingyu glass greenhouse is more important. The formula is scientific and the surface does not absorb moisture. The Zhumadian Pingyu steel frame greenhouse has advanced non-halogen advanced modification technology and scientific good technology. Disadvantages of poor water resistance and variability make the greenhouse skeleton less dripping and frosting in a high temperature and high humidity environment, and reduce pests and diseases. In addition to high-stem vegetables such as melon and eggplant, the greenhouse can also cultivate leafy vegetables with higher economic value, such as agaric, water spinach, celery, lettuce, etc., for early spring, late autumn, and overwinter cultivation. Shade sheds, to achieve the purpose of avoiding frost damage, promoting growth, increasing yield and extending supply, as well as anti-season listing, with good economic benefits. Leafy vegetables that are temperature-resistant and heat-resistant, such as agaric and convolvulus, can be sown in September-October. In the later period, heat-resistant cover is introduced, which is marketed in advance. In addition to conventional cultivation, it basically reaches supply. Lettuce and other cold-loving but less frost-resistant vegetables are suitable for sowing in the open field from late August to early September and spring from March to April. If they are sown from November to March the following year, they will be cultivated in greenhouses. Thick greenhouse hollow panel greenhouse is a building with daylight covering material as all or part of the envelope structure. It can be used for cultivating plants in winter or other seasons that are not suitable for open-field plants. Thermal insulation of solar greenhouse The thermal insulation of solar greenhouse is composed of thermal insulation envelope structure and movable thermal insulation quilt. The thermal insulation material of the front slope should be made of flexible materials so that it can be easily retracted after sunrise and put down at sunset. Zhumadian Pingyu 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. The marketing department's cultivated seedling cultivation type is characterized by winter seedlings → spring early maturing cultivation → summer seedlings → autumn and winter cultivation. Winter seedlings are grown from November to mid-late March of the following year to grow seedlings of solanaceous fruits, melons and beans. Planted in mid-late March for early maturing in spring. Seedlings are cultivated in summer from June to August, and vegetable greenhouses such as cabbage, broccoli, and tomatoes are built in Zhumadian. Autumn tomatoes, cucumbers, leafy vegetables, celery, onions and garlic are cultivated in autumn and winter. The formula is scientific, the surface does not absorb moisture, and the non-halogen returning advanced modification technology and scientific good process have solved the shortcomings of the magnesite greenhouse poles that are easy to absorb moisture and return to halogen, have poor water resistance, and are easy to deform. In the environment, there are few drops of water, frost, and reduced pests and diseases. Quotation Fushun greenhouse can be divided into thin film greenhouse, glass greenhouse, plastic plate greenhouse according to material. Zhumadian Pingyu glass greenhouse is more important. There are many strong winds in spring. The air vent should pay attention to the wind to increase the density of the air rope, and it is better to use a wide cloth strip with high friction. When this kind of cloth strip is used to fix the shed film, The friction force is large, and the loose knot is not easy to be loosened by the strong wind. Many vegetable farmers conveniently use nylon ropes as windbreak ropes, because the friction is small, vegetable farmers should appropriately increase the density of nylon air vent ropes and fix them to prevent the wind outlet from being blown by the wind. At the same time, vegetable farmers should also pay attention to it at any time during windy weather to prevent the air release rope from loosening and the air outlet closed. The area of the new product () 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. "North" (Northeast, North China, Northwest) The area is preferably 600.800 square meters. 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. Good cost
Zhumadian Pingyu glass greenhouse which is more important technical aspects of the project team, some designers, before the start of each project, the greenhouse project manager to carry out detailed project training for engineering and technical personnel, to take out the difficulties and points of this project, Take precautions against mistakes in advance, so that engineering and technical personnel have a good idea before the start of the project. After the project is started, it will be implemented in accordance with predetermined plans and steps, which effectively avoids errors in the construction process and ensures the quality of the entire project. . Good quality () The ventilation of the greenhouse is mainly to adjust the gas composition in the grid and adjust the temperature and humidity. The width of the greenhouse is more than 10 meters, and more than 3 vents are used, that is, the middle seam and two side seams are left. The middle seam is high in the middle of the greenhouse. The edges are sewn on the shoulders on both sides of the greenhouse, off the ground. l ~ 2 meters high. This type of vent puts cool air in from the side seam and hot air through the top seam, and the ventilation effect is good. When no ventilation is required, pull the two films together and close them. The overlap of the two films should exceed 10 cm. Greenhouses with a span of less than 10 meters are mostly assembled, with a tube at the top and a convex shape, so there is no top seam. Two side seams are used for ventilation. If a top seam is provided, it is difficult to open and close the seam. The knowledge is to choose a place where the sun is sunny, sheltered from wind, high dryness, good drainage, and no soil contamination. Shading net: a kind of plastic woven wire mesh. Commonly used are black and silver gray, and there are several density specifications, the shading rate is different. It is mainly used for shading and rainproof in summer, and can also be used as heat insulation cover in winter. The types of greenhouses include planting greenhouses, breeding greenhouses, exhibition greenhouses, experimental greenhouses, catering greenhouses, entertainment greenhouses, etc .; the design of greenhouse systems includes heating systems, thermal insulation systems, cooling systems, ventilation systems, systems, irrigation systems, etc .; greenhouses are just simple The plastic film and bone structure knot, its internal facilities are few, not as high as the requirements of the greenhouse. Therefore, strictly speaking, greenhouses have higher requirements than greenhouse equipment, and more advanced instruments may be used to strictly control the temperature. Where is good () Summer cultivation of sun-shading, rain-proof and seedling cultivation in the southern region from late to early August, strong light and high temperature with thunder showers and typhoon rain, which will seriously affect the cultivation of vegetables and early autumn vegetable seedlings. The application of shade nets and non-woven fabrics will promote greenhouses in summer Play a role in nursery and cultivation. () Regulation of air humidity: The changing law of air humidity in greenhouses: The plastic film is highly sealed, the exchange of air in the greenhouse with 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.