Latest Key Points for Ventilation Management in Strawberry Greenhouses
Strawberry is a very common fruit in our daily life. Its planting area in China is also relatively large, and now strawberries are generally grown mainly in greenhouses. When growing strawberries in greenhouses, because they are in an enclosed space, we need to do a good job of ventilation. So how should strawberry greenhouses be ventilated? What should be noted during ventilation? Below, the editor brings you the key points of ventilation management for strawberry greenhouses. Let's take a look!
1. Ventilation management
Many people do not pay attention to the ventilation work of greenhouses when growing strawberries in greenhouses. They think it is enough to just open the ventilation openings, but in fact ventilation also has certain techniques. For those who have the conditions, they will choose a film rolling machine to operate the vents, and there is no big problem with that. But if ventilation is done manually, then there are many places that need our special attention, and there must be a correct ventilation operation.
First, we must keep the opening and closing of the ventilation openings consistent. If the opening and closing widths of the ventilation openings are inconsistent, then the temperature inside the greenhouse cannot remain uniform, and it is easy to cause large temperature differences in local areas. Therefore, when ventilating, we should operate according to the specific purpose. If the purpose is to cool down, then first open the side vents of the greenhouse, and then open the top vents. Then when closing the vents, do it in reverse. If the purpose is to remove moisture, then the order of opening and closing the vents should be opposite to that for cooling.
2. Ventilation on sunny days
On sunny days the temperature is relatively high and there is sufficient light, but the temperature difference between indoors and outdoors will be relatively large, especially in winter. Therefore, on sunny days, cooling should be the main purpose and moisture removal secondary. When ventilating, always pay attention to the temperature inside the greenhouse, and adjust the size of the ventilation openings as the greenhouse temperature changes. During ventilation, it is not suitable to carry out other operations inside the greenhouse. Also, do not open the ventilation openings all the way at once, to prevent a sudden drop in temperature inside the greenhouse, which would affect strawberry growth. The opening and closing of ventilation openings should be done step by step, maintaining a stable environment.
3. Ventilation during continuous cloudy days
Many people think that ventilation is not needed on cloudy days. Indeed, if the cloudy weather lasts about two days, then ventilation can be omitted. But if the cloudy weather lasts a long time, then ventilation work should be done well. After about three consecutive cloudy days, short-term ventilation should be carried out at noon when there is no rain, keeping it at around half an hour. The main purpose is to remove moisture and replace the air, improving air quality. Only in this way can the growth of strawberry seedlings be further promoted and the growth capacity of strawberries be enhanced.
The above is a brief introduction to the key points of ventilation management for strawberry greenhouses. That is all for today's introduction. This article is for reference only, and I hope it can be helpful to everyone!