The weather is getting colder and colder, and open-air vegetables are no longer suitable for planting. Many growers have begun to build vegetable greenhouses. But it should be noted that it is not to say that with a large shed, vegetables can grow well. After the vegetable greenhouse is built, the growers must pay attention to management, otherwise the vegetables will be difficult to safely overwinter. The following Hui Nongwang Xiaobian will talk about the management points of the overwintering vegetable greenhouse.
First, the light
Light is the basic condition for the growth of vegetables, and there will be a lot of dust on the vegetable greenhouse film, which will affect the light, so it must be cleaned regularly. Another one is the density of the plants themselves. For some extra leaves that are not growing well, they should be cleaned up in time.
When the winter illumination is not sufficient, you can also install the fill light in the greenhouse. It can be turned on for a while in the dark, and the effect is not bad.
Second, the temperature
Temperature is critical for the cultivation of off-season vegetables. In addition to the simple use of the greenhouse, it is also necessary to cover the quilt on the shed, so that the insulation effect can be better. When the weather is much more rainy and snowy, the growers can cover the cotton cloth with a film, so that it can prevent rain and snow. In addition, when the sun is better during the day, the quilt should be opened to let the light come in. Wait until the afternoon, if the temperature inside the greenhouse drops, you should pay attention to the quilt cover.
Third, humidity
If planted in a greenhouse, there is still a place that needs special attention, that is, humidity. If the humidity is too high, the disease will be more serious. This can cover the mulch in the greenhouse, reduce the evaporation of water, and at the same time pay attention to ventilation. work. If the temperature is relatively low, there will not be much evaporation of water, so the amount of watering is not much needed.
Fourth, disease prevention
The temperature inside the greenhouse is high and the humidity is high. In this case, the pests are easily propagated. It is recommended to plow the soil for septic disinfection. When suffocating the shed, you can also smoke some sulphur, which is even more effective. And this method is more natural, do not worry about excessive use of pesticides will affect the crop.
The above is the four elements of the management of winter vegetable greenhouses compiled by Huinong. I want to make greenhouse vegetables safe for the winter. These four points, vegetable growers must pay more attention and carefully manage.
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