Plant lights really work？

4, completely solve the seedling stage to see the day to eat the situation, completely according to the seedling delivery time to reasonably arrange the time.

The point of lighting inside the greenhouse is to extend enough light intensity throughout the day. It is mainly used to grow vegetables, roses and even chrysanthemum seedlings in late fall and winter. Greenhouse lighting has a great impact on the growth period and seedling quality. In the case of tomatoes, light usually begins after the plant has grown two cotyledon, and continuous light for 12 days can reduce the seedling preparation period by 6-8 days. But more than 24 hours of light can disrupt plant growth. The optimal amount of light is 8 hours per day.

On cloudy days with low light intensity, artificial lighting is a must. Give the crop at least eight hours of light a day at night, and the amount of light should be fixed each day. But a lack of nighttime rest can also lead to disrupted plant growth and reduced production.

For tomatoes, the most effective time of light is from dusk to midnight, 16:00-24:00 or from midnight to early morning 24:00-8:00. 8 hours of light and 8 hours of rest. In practice, we should provide light for the entire growth period of the plant, that is, from the seedling to the colonization period. In the final period we should reduce the light to 6 hours a day or even stop for 2-3 days, if because of poor lighting conditions, to the colonization period takes a long time, usually the light lasts for a month.

Under fixed environmental conditions such as carbon dioxide, water, nutrients and temperature and humidity, the "photosynthetic flux density PPFD" between light saturation point and light compensation point directly determines the relative growth rate of plants. Therefore, an efficient light source PPFD combination is the key to plant plant productivity.

Compared with traditional high-pressure sodium lamps or metal halide lamps, LED plant lamps have higher light efficiency and longer life, while also providing more accurate spectral control, helping to improve the efficiency of photosynthesis, save energy and reduce environmental pollution.

To sum up, the use of plant lights can effectively simulate natural light, supplement indoor light, improve crop yield, but also more energy saving and environmental protection. Therefore, plant lights are a very useful tool for plants that need to be grown indoors or in a specific environment.