What are the management points of greenhouse vegetables in winter?

In winter, the temperature is low, the light is weak, the greenhouse environment is relatively closed, and the technical level of greenhouse vegetable planting management is higher in winter. But what we vegetable farmers want to protest is that the vegetables planted in greenhouses in winter have excellent and powerful length, high flowering effect, high yield and good quality, and we have to master some management skills of greenhouse vegetables in winter, especially indoor insulation, watering control, lighting control, wind control and temperature control, but these are the aspects. If we are not good at management, it will often affect the growth and yield of vegetables.

The following small series will tell you about the management measures of greenhouse vegetable planting.

1. Climate prevention

For greenhouse vegetables, ensuring the safety of greenhouse is the most basic measure. It is inevitable that there will be strong winds and heavy snow in winter. At present, we should strengthen it, such as pressing film ropes, pressing two sets of suits on the grass, and removing steel cables from the outer cover. It can effectively prevent the wind from blowing the grass out together with the outer film. In the snow, you must cover the grass with snow-proof film. At the same time, it will be cleaned after the snow to prevent the greenhouse from collapsing. There should be columns in front of the greenhouse, and columns should be added in the greenhouse.

2. Temperature control

Winter is very cold, which is not suitable for most vegetables. Therefore, if you want to specify good in the greenhouse, you should make sure that the temperature in the greenhouse is correct. How come? At this time, when grass roots grow, it is necessary to "cover early and cover early" to maintain a stable and relatively constant greenhouse.

3. Water and fertilizer management

Pay attention to water, avoid water in deep winter to prevent freezing injury, and choose sunny days, dripping water, micro-spraying or film pasting. At the same time, because of the weather, vegetables planted in winter are slow, so there is less demand for fertilizer, and there should be some organic fertilizer or biological fertilizer. Fertilizer. Fertilizer.

4. Disease prevention

Greenhouse is a relatively closed space, so it is particularly important for the prevention and control of pests and diseases. It is difficult to reduce diseases in the sun to minimize the air humidity in the greenhouse, use dust or smoke as much as possible, and use drugs and control plant diseases at the same time.