With the arrival of winter comes heavy snowfall. Greenhouse management is an important task for vegetable growers. After heavy snowfall, the management of greenhouses is even more important. In order to ensure the growth of crops in the greenhouse and the stability of the yield, we need to pay attention to the following points and precautions.
1. Clear the snow in time.
After heavy snowfall, the snow in the greenhouse should be cleared in time to avoid snow compaction and freezing, which can cause damage to vegetables. At the same time, clearing snow can also improve the ventilation of the greenhouse and promote the growth of vegetables.
2. Strengthen thermal insulation measures.
In heavy snowy weather, the thermal insulation performance of the greenhouse is particularly important. To strengthen the insulation measures, you can use straw, quilts and other materials to cover the greenhouse to increase the temperature in the greenhouse. In addition, equipment such as heating lamps or hot blast stoves can also be set up in the greenhouse to increase the temperature in the greenhouse.
3. Pay attention to humidity control.
In heavy snowy weather, the humidity in the greenhouse tends to be relatively high. Therefore, it is necessary to pay attention to controlling humidity to avoid diseases in vegetables. Measures such as ventilation can be used to exhaust the moisture in the greenhouse, or materials such as desiccant can be used to reduce the humidity in the greenhouse.
Fourth, reasonable fertilization.
In heavy snow, the growth rate of vegetables in the greenhouse will slow down, but fertilizer will still be needed. It is necessary to pay attention to the timing and amount of fertilization to avoid damage to vegetables caused by over-fertilization. You can choose some fast-acting fertilizers, such as urea, to promote the growth of vegetables.
5. Prevention of pests and diseases.
In heavy snowy weather, the growth of vegetables is affected to a certain extent, and it is easy to breed diseases and pests. Therefore, it is necessary to strengthen the pest control of vegetables. Biological control, chemical control and other methods can be used to prevent and control the occurrence of pests and diseases.
Sixth, timely ploughing.
In heavy snowy weather, the soil in the greenhouse is easy to become compact, which is not conducive to the growth of vegetables. Therefore, ploughing needs to be carried out in a timely manner to improve the structure and fertility of the soil. At the same time, you can also add some organic fertilizer to improve the fertility of the soil.
7. Other precautions.
It is necessary to rationally arrange crop planting and management plans to avoid duplication of work and waste of resources;It is also necessary to pay attention to the weather forecast, and adjust the management and maintenance measures in the greenhouse in time according to the weather conditions.
In conclusion, after heavy snowfall, good greenhouse management is the key to ensuring crop growth and yield. According to the characteristics of the season and climate change, we should pay attention to the above points and precautions, and reasonably arrange management measures to ensure the healthy growth of crops and the stability of yields.