[After continuous rainy weather in winter, how to manage the greenhouse] Recently, many places in China have entered continuous rain and snow, and many northern growers have already prepared for greenhouse cultivation. However, such a bad weather will actually have an impact on greenhouse cultivation. The following article introduces how to manage the greenhouse after a continuous rainy winter.
First, gradually see the light
In this weather, sometimes there will be a lot of rainy days until the weather begins to clear. If there is such a weather change, be sure to pay attention not to let the plants receive so much light, or else they will affect the growth of their seedlings.
For example, in order to keep warm, some sheds will cover some quilts. When the weather is better, of course, the quilts should be taken down and allowed to receive light. At this time, don't take it all at once. Generally speaking, take one or two or three at a time. In this case, let them slowly adapt to the lighting environment. Otherwise, crops are prone to bun.
After the transition has been adapted for a few days, you can take it all down. Some use the machine to directly roll up the quilt. You can roll it up a part and then gradually increase it gradually.
Second, pay attention to ventilation
If the weather becomes very sunny, don't forget to ventilate while giving the plants light. Otherwise, the temperature inside the greenhouse will rise faster. In this case, the water will evaporate more and the plants will be prone to blemishes.
Third, spray sugar water
In the sudden clear weather, you can spray some sugar on the leaf surface, which can better protect the foliage, and can also effectively reduce the evaporation of water.
Fourth, the use of pesticides
If the weather is very good, it is generally recommended not to use pesticides at this time, because the pesticide will absorb sunlight after spraying on the leaves, which is easy to cause phytotoxicity. The time to use the pesticide is recommended before 10 o'clock in the morning, or after 3 o'clock in the afternoon.
Five, anti-freeze
Although it is planted in greenhouses, sometimes plants will have some problems in freezing damage. For example, some dead branches should be cut off in time, then pay attention to the work of thinning and thinning, and reduce the cost of nutrition.
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