Solar greenhouse vegetables are prone to illness, how to reduce the disease?

First, the cause of serious illness

1. Insufficient light. Causes the plants to grow slowly and weakly, and the germs are easily invaded.

2. The temperature difference is too large. Plant leaves are susceptible to dew condensation and germs are easily invaded.

3. The humidity is too high. Humidity is the main cause of serious vegetable diseases. Low temperature, high humidity, high temperature and high humidity all contribute to the epidemic and aggravation of diseases.

Second, reduce the method

1. Insufficient light: 1 Solanaceous vegetables should be covered with new shed film; 2 oligopolistic vegetables should be grown; 3 dirt should be removed in time; 4 should be densely planted;

2. The temperature difference is too large: 1 The curtain is closed at the right time; 2 The thickness of the wall is appropriately increased.

3. Humidity is too high: 1 Grasp the time and method of watering, so that three pouring and three do not pour. That is, it is sunny and pourable, and it is not poured on cloudy days; it is poured in the morning and not poured in the afternoon; drip irrigation or underdrain irrigation under the membrane is not sufficient for flood irrigation. 2 Excluding the humidity in the booth in time; 3 Apply drugs on a sunny day.

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