Common problems and hazards in greenhouse Vegetable farming

1. Toxic and harmful gases

In the process of greenhouse Vegetable farming, there will be some toxic and harmful gases in the greenhouse, including nitrogen and Nitrous acid. This is a problem that will occur in the process of planting and needs to be handled by the plantation. In the current situation, the understanding and understanding of toxic gases by planting personnel are not comprehensive enough, and the treatment measures are not scientific. If nitrogen appears, it is caused by excessive use of urea, improper fertilization, etc., which can cause small spots and rot on the roots and leaves of vegetables; If too much nitrogen fertilizer is used, Nitrous acid gas will be produced, making the soil acidic and causing vegetables to wither. In winter, in order to ensure a suitable environment for vegetable growth, insulation measures are taken, such as burning fuel. During the combustion process, carbon dioxide will appear, and poor ventilation in the greenhouse can lead to a decrease in the quality of vegetable growth.

2. Lack of preventive measures for low temperature and freezing damage

The environment for vegetable growth is very important. It is necessary to ensure the temperature and humidity, and the greenhouse Vegetable farming technology to ensure the most appropriate temperature during the planting process. If the temperature inside the greenhouse is too high or too low, it will affect the quality of vegetables, so corresponding preventive measures should be taken. If the temperature is low, incremental methods will be used for prevention, but some methods are not scientific and reasonable enough, which can also greatly affect the yield of vegetables and seriously lead to crop failure. During the planting process, control the temperature inside the greenhouse to avoid freezing damage.

3. Lack of effective dehumidification measures in the shed

The greenhouse is a closed environment, which will cause moisture concentration. In the process of Vegetable farming, the humidity in the greenhouse should be controlled, the humidity value should be monitored, and the humidity measurement and dehumidification should be done regularly. During the humidity adjustment process, improper operation by planting personnel leads to an increase in humidity inside the greenhouse, which has a serious impact on the vegetable growth process.