The main function of HDPE shade net is to block strong light and reduce greenhouse temperature. Covering shade net is an important measure for greenhouse vegetable production in high temperature season. However, if you choose an inappropriate shade net, it will not only cause the plants to grow leggy, but also be unfavorable for flowering and fruit setting. Therefore, we must choose HDPE sunshade net scientifically and reasonably.

　　Do not judge the quality of the HDPE shade net by its color: the shade nets currently on the market are mainly black and silver-gray. The black shade net has high shading rate and rapid cooling, and is suitable for short-term coverage in fields that require careful management in hot summer; the silver-gray shade net has a low shading rate and is suitable for light-loving vegetables and long-term coverage.

　　The quality of the HDPE sunshade net is not determined by the color. The color of the sunshade net is added in the process of raw material manufacturing. Therefore, different vegetables should choose shading nets of different colors and different shading rates. While the effect of light time on tomatoes is less important, light intensity is directly related to yield and quality. Insufficient light can easily lead to malnutrition, leggy growth, and reduced flowering.