Precautions for vegetable greenhouse greenhouse cultivation

1: Control the lighting inside the greenhouse.
Light is an essential condition for vegetable growth. Without light, vegetables cannot produce chlorophyll and grow normally. Therefore, we should pay attention to the control of light when planting vegetables in greenhouse. The light intensity varies greatly in different seasons. Generally speaking, there is less sunlight in winter and early spring. Because the greenhouse is isolated from sunlight, vegetables can receive very little light. In this period, farmers should lift the plastic film to ensure that the vegetables get enough light.
2: Pay attention to ventilation.
The greenhouse is an almost completely closed space. In this environment, the vegetables themselves may react and produce some toxic gases. If these gases are not discharged in time, the normal growth of vegetables will be hindered. Timely ventilation can ensure the normal growth of vegetables.
3; Select appropriate greenhouse film.
The selection of greenhouse film should take into account the warmth retention and non-toxic. With the improvement of people's education level and quality of life, more attention should be paid to green food. When planting vegetables in the greenhouse, if the greenhouse film has certain toxicity, it will not only hinder the normal growth of vegetables, but also make vegetables contain toxic substances to varying degrees. In addition, attention should be paid to the assembly of greenhouse film. A high-quality greenhouse film can enable vegetables to grow under appropriate temperature and humidity conditions.
4: Select vegetable varieties scientifically.
There are various types of vegetables, and different vegetables have different requirements for the environment. The growers should consider whether the local terrain can meet the growth needs of vegetables and whether the vegetable varieties can meet the market demand, so as to ensure that the vegetable varieties planted can improve the farmers' income.
5: Do a good job in pest prevention.
Vegetables will be damaged by diseases and pests at one or several stages, resulting in yield reduction. Farmers should timely observe, prevent the occurrence of pests and diseases, take measures to eliminate pests and diseases, minimize the impact of pests and diseases, and clean the greenhouses.
6; Scientific irrigation.
Water is a necessary condition for the growth of all things. Vegetables need sufficient water to grow. Vegetables without water cannot grow normally, or even die directly. Therefore, planting vegetables must be watered in time.