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Different plants have different temperatures:
1. Chili peppers, like high temperatures. The temperature of germination is 30-45, the suitable temperature for growth is 26-30 during the day, 18-22 at night, and the temperature below 15 is below 15. In cultivation, the greenhouse temperature must be kept at 20-25, and if it is lower than 18, it will not grow normally.
Second, tomatoes, like high temperatures. 25-30 is the ideal germination temperature. The suitable temperature for growth is 27 during the day and 17 at night.
The lower limit of the ground temperature during the cultivation period is 10, the minimum temperature according to the growth is 5, the most suitable temperature is 28, and the maximum shall not exceed 38.
3. Celery, celery likes to be cold. The required growth temperature is 20-22 during the day, 15-18 at night, and the temperature difference between day and night is 4-5. The ground temperature is required to be 18-20, and the minimum should not be less than 3-6.
The late stage is not less than 6-8, otherwise it will not be able to grow and develop normally.
Fourth, cucumbers, the temperature requirements are stricter. The suitable temperature is 24-26 during the day, 14-15 at night, the lower limit of low temperature is 10-12, the temperature is below 10 to stop growing, and the root activity is weak and the leaves are shrunk above 30. The seedling growth period should not be lower than 18, and the minimum temperature is 20-23.
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1 The temperature in the greenhouse is about 7 or 8 degrees in the morning, and the temperature increases as the sun rises. Generally, it can reach 30 degrees, but generally vegetables can't stand this or above temperature, so it is necessary to release the wind, which is generally controlled at about 20-25 °, especially in the middle of the night, it will be relatively low, below 0 °, and even lower when the weather is cold. If it is minus 6 degrees outside, it can generally be maintained at 7 or 8 degrees in the shed, if the insulation measures are done.
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I don't set the temperature by myself, it's too hard, I bought the greenhouse thermostat of Century Tianchengjia, and I can set whatever temperature I want. You can buy it, and if you don't understand anything, ask me.
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This is determined by the windshield wall of the greenhouse.
wall thickness and artificial heating measures. I know that there are places where the greenhouse can maintain 30 degrees in winter, and it is said that in order to maintain the high temperature in the shed in the summer in the harsh winter season, in addition to the thickness of the wall, polyvinyl chloride film is also used to increase the light transmittance, the new construction technology is used to enhance the closure of the shed, and the 15 kg straw curtain is used to increase the thermal insulation performance.
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1. The temperature in the shed in the morning is about 7 degrees, with the higher the sun, it can generally reach 30 degrees, the vegetables should be ventilated, controlled at 20-25 degrees, lower at night below 0 degrees, and the outdoor minus 6 degrees, the shed is maintained at 7-8 degrees.
25° is very easy, on the roof of the greenhouse No. 6 tuyere, no additional measures are required, the tuyere will be enlarged and ventilated in hot weather, and the tuyere will be closed in cold weather.
Generally sunny days, ventilation when the temperature in the shed reaches 28-30 during the day, and proper ventilation to maintain the temperature of about 20 on cloudy days.
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It is generally in the 30s Celsius.
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How much does the greenhouse on the picture cost.
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The insulation of the greenhouse, the temperature difference between the winter and the outside of the room, the most type of this tour is to keep it at about 10 degrees, if the temperature difference is too large, resulting in the growth of things in her greenhouse.
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The thermal insulation performance of the greenhouse mainly depends on the thermal insulation of the wall, the rear roof and the front roof.
In the design process, the thermal insulation effect of the wall should meet the following standards: in the coldest season when it is sunny, the minimum temperature difference between indoor and outdoor is 20 25, and it is continuously cloudy.
When it is not more than 5 days, the temperature difference between indoor and outdoor is not less than 15. If the brick wall is used, the total thickness of the wall should be ensured to be 70 80cm, that is, the inner and outer sides are 24cm brick wall, and the middle is filled with soil; If the wall is built with earth or adobe, the thickness of the wall is 80 100 cm. The cross-section of the back wall of the Shouguang solar greenhouse is trapezoidal, with a lower width of 350 450cm and an upper width of 100 150cm.
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The temperature in the greenhouse is about 7 degrees in the morning, and the temperature increases as the sun rises. Generally, it can reach 30 degrees.
The types of greenhouses include planting greenhouses, breeding greenhouses, exhibition greenhouses, experimental greenhouses, catering greenhouses, entertainment greenhouses, etc.; The design of the greenhouse system includes heating system, insulation system, cooling system, ventilation system, control system, irrigation system, etc.
The greenhouse is just a simple plastic film and bone structure knot, and its internal facilities are very few, which is 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.
Main device: an indoor greenhouse cultivation device, including a planting trough, a water supply system, a temperature control system, a hidden silver auxiliary lighting system and a humidity control system; The planting trough is set at the bottom of the window or made into a partition for planting plants; The water supply system automatically supplies the right amount of water at the right time; The climate control system includes an exhaust fan, a heat fan, a temperature sensor and a thermostatic control box to adjust the temperature at the right time.
The auxiliary lighting system consists of plant lamps and reflectors, which are installed around the planting trough to provide illumination when there is no sunlight, so that the plants can photosynthesize and present a beautiful landscape through the refraction of light. The humidity control system works with a fan to regulate humidity and reduce room temperature.
A greenhouse is a building that uses lighting covering material as all or part of the envelope material, which can be used for cultivating plants in winter or other seasons that are not suitable for the growth of plants in the open field.
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Generally, the daytime temperature of crops is 32 degrees Celsius, and the minimum temperature at night is 12 degrees Celsius (short-term lower temperatures are also possible in special weather). The upper limit of high temperature can reach 55 degrees for a short time, and the temperature range of the greenhouse is divided into: the upper and lower limits of the temperature during the planting crop and the period without planting the crop.
Generally speaking, the temperature in the greenhouse should be controlled at a minimum average temperature of more than 12 degrees (so as not to damage the growth of the root system), and the maximum average limit at the crop growth point should be below 34 degrees (it is advisable not to damage the growth point). If there is no crop low temperature with the ambient temperature, the maximum temperature is best not to exceed 50 degrees, if it exceeds 50 degrees, the covered film will age quickly.
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The height of the greenhouse is about 3 meters, the specific size is mainly related to the structure, function and span of the greenhouse, the use of greenhouse can play the role of heat absorption, heat preservation and light transmission, its insulation principle is through the light transmittance of the building material, and the intelligent temperature which contains control equipment, according to the variety and growth habit of vegetables to adjust the environment, speed up the growth of plants.
The height of the conventional standard size of the greenhouse is about 3 meters, the longitudinal span is 8 meters, and the transverse opening is 4 meters.
The greenhouse mainly plays the role of heat absorption, heat preservation and light transmission, regulates the growing season of vegetables through temperature, and can reduce energy consumption, so that vegetables and fruits can be planted normally when they are out of season, and ensure that fresh vegetables and fruits can be provided all year round.
There are many types of greenhouses, mainly divided into glass, plastic, single, multi-building, warmable and non-heated greenhouse types, among which glass greenhouses can be widely used in the north and south, and plastic greenhouses are widely used in the south, mainly to help crops in the summer shade and sun protection.
The insulation principle of the greenhouse is to adjust the growth environment according to the characteristics of different vegetables by building the light transmittance of Yuanchang materials and intelligent temperature control equipment, and plant warm-loving vegetable and fruit crops at low temperatures in winter to maintain the right temperature and accelerate their growth speed.
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Summary. The higher the temperature, the better, at least 15 degrees: the lower the humidity, the better, and it is best to control it at around 75%.
Hello dear, 1TemperatureFrom the aspect of temperature, the temperature in the greenhouse is too high or too low will directly affect the normal growth of vegetables, and the temperature is too high will increase the amount of water evaporation in the greenhouse, so that the pure vegetables in the stove will be wilted and dried up, and will also affect the quality of vegetables; If the temperature is too low, it will delay the growth of vegetables, and even frostbite the seedlings.
2.Humidity from the humidity aspect, because the greenhouse high liquid Zen is a relatively dense and dusty space, the air circulation is poor, so the humidity will generally be larger, especially in rainy weather, the humidity is too high vegetables are easy to rot roots, but also easy to suffer from the virus, so it is necessary to do a good job of humidity and buried mold work.
The higher the temperature, the better, at least 15 degrees: the lower the humidity, the better, and it is best to control it at around 75%.
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