Effects of Temperature, Humidity and Illuminance on Winter Vegetables

Temperature and humidity and light intensity have a great influence on winter vegetables, and the winter sunshine is much shorter than summer. By using a light quantum recorder, we can clearly understand. The measurement results also show that the sun's demand for vegetables in winter is often in a gap state, how to ensure the winter sunshine supply and temperature and humidity, to maximize the economic benefits of winter vegetables.
Illuminance is the main factor affecting the photosynthesis of plants. Photosynthesis of plants is the process of accumulating organic matter, and it is the need to provide various physiological activities of plants. The intensity of light directly affects the photosynthesis of plants. For plants that have not been exposed to light for a long time, their life processes will be inhibited. This will ensure that plants have a certain degree of illumination and can promote good growth. In addition, temperature and humidity are also one of the important factors for plant growth. Temperature and humidity are also measured by corresponding instruments, such as a temperature and humidity self-recording device and also called a self-reporting temperature and humidity meter.
There are several ways to increase the intensity of light: Manual fill light is the most common, using light bulbs to increase light intensity in rainy weather and at night. Reasonable pruning branches, the excess foliage treatment, improve lighting conditions. Maintaining the clean condition of the shed film will increase the light transmittance of the shed film. In winter, when the temperature is relatively low, it is also necessary to increase the temperature. The temperature and humidity in the environment are detected by the use of the instrument to detect changes in temperature and humidity, and the adjustment of the optimum temperature and humidity of the plant is adjusted to adjust the temperature in winter. , It is covered with plastic film, only to improve the ground temperature, reduce the air humidity in the shed is favorable, cover the film formed after the reflected light, but also enhance the intensity of light at the base of vegetables, to make up for lack of direct light at the base. This is more sensible. In the cultivation of greenhouses, it is necessary to detect various indicators in the environment. Test items in the environment include: temperature, humidity, light intensity, etc. These factors will affect the growth and yield of plants. Monitoring of these factors can be used. Professional testing equipment, such as the temperature and humidity in the environment to detect the temperature and humidity, the light quantum recorder to detect the light intensity in the environment.