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During the growing process, vegetables have certain selection requirements for environmental conditions. In the present, the application of greenhouse cultivation technology is increasing. Grasping the climate conditions in control greenhouses has a very important influence on the growth of crops. For example, the most suitable temperature for vegetable growth is 20}-300C during the day, and the night temperature is 10}-200C}5°C. The watermelon and melon, during the day when the required temperature 25300C0100C to stop i1 = growth, 50C that suffered freezing injury. In addition to temperature, the same is true for humidity and light intensity. Therefore, it is very important to control the indoor climate conditions according to the crops in the greenhouse. The temperature and humidity recorder can well ensure the environmental conditions of the crops.
(1) In winter production, multiple cover cultivation techniques are commonly used: covering the ground with a plastic film; covering the straw film with a curtain, and adding a layer of plastic film on the straw curtain. In case of strong cooling weather, temporary heating measures shall be adopted: more coal cakes and stoves shall be set up in the shed to warm up, and conditions may be used to warm the equipment such as electric heating lines and diesel heaters.
(2) In summer, the temperature inside the shed is very high. All the ventilation II around the greenhouse must be opened. If the temperature is too high, the shade can be covered on the top of the greenhouse for cooling. In sunny days during the day, timely measure the temperature in the shed. Once the temperature rises above 30°C, immediately open the ventilation on both sides of the ventilation II, adjust the ventilation II, and try to keep the temperature in the shed stable at 25300C0.
(3) Adopting lightening measures to increase light intensity and prolong lighting time: Select agricultural film with high light transmittance, and clean the film to ensure the cleanness of the agricultural film; cover the white plastic film; suspend the light curtain on the back wall; timely pruning and picking Leaves to enhance the light transmission in the field.
Air humidity in the shed: 1. Minimize watering during growing season, prevent i1 = watering during growing period, reduce ground temperature, increase air humidity, and if water is needed during growth period, open ditch irrigation and avoid flooding. Flood irrigation. 2. Cover the drip-free membrane; apply water to the upper part of the shed, and use a plastic membrane to lay plastic hoses for sprinkling. Use drip irrigation facilities if necessary. 3. Use large and small rows as much as possible. After the watering, timely cultivating and loosening. 5. In order to ensure the temperature is suitable for the premise, timely ventilation, exhaust moisture; cold season watering, should be selected in the sunny morning. Immediately after the watering, the enclosure was sealed and the temperature was increased. Wait until noon and noon to increase ventilation and remove moisture. Through the above measures, the air humidity in the shed can be greatly reduced.
Through the temperature and humidity recorder to record the temperature and humidity in the greenhouse, when an environmental factor in the greenhouse exceeds the range to be controlled, corresponding measures are taken to improve, to more ensure the demand for crop growth, increase crop yields. Increased income provided help.
(1) In winter production, multiple cover cultivation techniques are commonly used: covering the ground with a plastic film; covering the straw film with a curtain, and adding a layer of plastic film on the straw curtain. In case of strong cooling weather, temporary heating measures shall be adopted: more coal cakes and stoves shall be set up in the shed to warm up, and conditions may be used to warm the equipment such as electric heating lines and diesel heaters.
(2) In summer, the temperature inside the shed is very high. All the ventilation II around the greenhouse must be opened. If the temperature is too high, the shade can be covered on the top of the greenhouse for cooling. In sunny days during the day, timely measure the temperature in the shed. Once the temperature rises above 30°C, immediately open the ventilation on both sides of the ventilation II, adjust the ventilation II, and try to keep the temperature in the shed stable at 25300C0.
(3) Adopting lightening measures to increase light intensity and prolong lighting time: Select agricultural film with high light transmittance, and clean the film to ensure the cleanness of the agricultural film; cover the white plastic film; suspend the light curtain on the back wall; timely pruning and picking Leaves to enhance the light transmission in the field.
Air humidity in the shed: 1. Minimize watering during growing season, prevent i1 = watering during growing period, reduce ground temperature, increase air humidity, and if water is needed during growth period, open ditch irrigation and avoid flooding. Flood irrigation. 2. Cover the drip-free membrane; apply water to the upper part of the shed, and use a plastic membrane to lay plastic hoses for sprinkling. Use drip irrigation facilities if necessary. 3. Use large and small rows as much as possible. After the watering, timely cultivating and loosening. 5. In order to ensure the temperature is suitable for the premise, timely ventilation, exhaust moisture; cold season watering, should be selected in the sunny morning. Immediately after the watering, the enclosure was sealed and the temperature was increased. Wait until noon and noon to increase ventilation and remove moisture. Through the above measures, the air humidity in the shed can be greatly reduced.
Through the temperature and humidity recorder to record the temperature and humidity in the greenhouse, when an environmental factor in the greenhouse exceeds the range to be controlled, corresponding measures are taken to improve, to more ensure the demand for crop growth, increase crop yields. Increased income provided help.
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