The impact of frost during the early spring flowering period is devastating, seriously affecting the flowering and fruiting of fruit trees, resulting in low fruiting rates and affecting yield. Young fruits damaged by frost have a dark brown core and are prone to falling off. The damage caused by low-temperature freezing to apple trees mainly manifests as damage to the root neck, branches, cortex, annual branches, and flower buds. Orchard frost prevention system can significantly reduce the harm of late frost.

The frost prevention system mainly consists of orchard support system and multifunctional protective net. The protective system can improve the micro environment of the orchard. At low temperatures, the temperature under the net is 1-2 degrees higher than that outside the net, which can reduce the harm of frost to the orchard.