1、 Land leveling

The first step in greenhouse vegetable planting is to level the land. The land should be renovated and weeded. At the same time, some base fertilizer can be added to the soil according to the vegetables planted. The fertilizer should not be too thick, otherwise it will lead to soil hardening and other deterioration

2、 Reasonable shed

The span of the greenhouse should not be too large, generally not more than 12M, and the length should not exceed 120m. It's best to have walls on all three sides, which can better keep warm. At the same time, it is necessary to select the appropriate steel vertical frame, which can play a better supporting role. Drip free film is selected to cover the shed surface, which can increase the internal temperature

3、 Vegetable selection

Due to the characteristics of the greenhouse itself, the selection of vegetables should meet several key points. The first is the low light requirements. The light time in winter is not long, and the cover of the greenhouse will reduce the entry of sunlight, so we must choose shade resistant vegetables. The second is strong resistance. The ventilation capacity of the greenhouse is general, so the plant must have the ability to resist diseases. The third is high humidity resistance. The humidity in the greenhouse is often very high and difficult to control, so vegetables must be high humidity resistant

4、 Regulating temperature

One of the advantages of greenhouse is good heat preservation, which can provide a growth environment for some vegetables. However, the temperature should not be too high. It should be controlled below 33 ℃. If it is higher than this temperature, it should be cooled immediately and the shed can be opened for ventilation

5、 Drip irrigation

Due to the high humidity of the greenhouse, it is not suitable to water more. Generally, drip irrigation is better. Drip irrigation itself can also save water, which is an economical and good method