PO film is the external reason for planting trend

PO film is the external reason for planting trend

land policy 

Because of the management of the nature of land, Beijing and Tianjin, the Yangtze River Delta and the Pearl River Delta have strict restrictions on the amount of concrete used for agricultural land, the width of road parks, and the curing of greenhouse rooms, which limits the development of glass greenhouses that need large foundations, and these regions have also gradually cancelled the subsidy policy for glass greenhouses, such as Shanghai. However, a glass greenhouse is determined to be suitable for the planting needs of some varieties, and the government and growers are looking for some balance points. There are many greenhouses that use the greenhouse structure to adopt the envelope type but cover with F-CLEAN or PO film and other soft films, reducing the amount of concrete, but there is no reduction in the light transmittance, safety and climate control. The government also began to subsidize such greenhouses.

Practicability and universality of film greenhouse

The statistical chart in the previous section has shown that the film greenhouse is increasing every year, and the proportion of PO film is increasing geometrically. Moreover, the film greenhouse has very low requirements for structure, and the subsequent maintenance is relatively simple. It is almost suitable for planting and cultivation in various fields. The solar greenhouse in the north and the single-arch greenhouse in the south of the Yellow River occupy almost half of the installed agriculture. The multi-span film greenhouse is also increasing steadily, and the government support is increasing. There are more and more large-scale, intensive and mechanized projects, such as projects with more than 40 hectares in Yunnan, Ningxia, Shandong and other places, and there will be an explosion in the next five years.

Quality awareness of growers

The technical level and theoretical level of growers are higher and higher, and the requirements for greenhouse quality are higher and higher. They are not only satisfied with building the greenhouse, but also need to consider the suitability. For some government projects, the growers participate in more and more design decisions. They are more clear about their needs. In the past, users have no decision-making power, The decision makers do not understand that the situation of greenhouse is gradually improving.