Greenhouse lighting: planting lights and agricultural products

Winter in Canada can be long and dark. The lack of natural light throughout the year hinders the production of winter greenhouses. As a result, greenhouse growers need to use auxiliary lighting to provide high-quality products. Consumer hopes are not the same throughout the year. When an alternative light source is provided to crops, the growth and growth of crops will be different.

 

Greenhouses currently use high-pressure sodium lamps or HPS lamps. Their investment cost is very low, but you cannot adjust the quality of the light. They may become very hot, reaching 300 degrees. This means that if the light gets too close, the plant may burn. Light-emitting diodes or LED grow lights are the latest technology. They provide higher quality light with customizable intensity, direction and color settings. Their surface temperature is also lower than that of HPS lamps, so they can be used inside the crop canopy.

 

Canadian agricultural and agri-food scientist Xiuming Hao from the Harrow R&D Center and Cao Rong from the Guelph Research and Development Center are busy using a new hybrid lighting system, HPS can illuminate the top of the crop canopy and LED lighting inside the crop canopy. The Canadian Department of Agriculture and Agri-Food is one of the main organizations researching global greenhouse vertical lighting. The results show that the new system can increase the yield and nutritional value of greenhouse crops. They found that by using an optimized hybrid lighting system, suitable spectra can be emitted at different heights, and the vegetable yield of cucumber plants is twice that of traditional greenhouses. Twenty times more than the ground! They also studied the effects of greenhouse LED lights of different colors on antioxidants in vegetables. Blue light increases the content of polyphenols, helping plants protect themselves from insects and diseases.

 

On the other hand, red light will increase carotenoids, which is very beneficial to plant growth and leaf health. The results of these studies may enable Canadian greenhouse growers to overcome the Canadian winter and enter the entire 12-month production cycle. This will enable them to produce fresh vegetables throughout the winter. Satisfy consumers' demand for high-quality local products throughout the year. This will also make them more competitive, because they will be able to stand out, and winter imports will be able to expand their influence in the international market. With the help of our Canadian agricultural scientists, the sun will never stop shining on Canadian greenhouse growers. At the right time, at the right time, everything is extraordinary.