Greenhouse is a kind of building with lighting covering material as whole or part of enclosure structure material, which can be used for cultivating plants in winter or other season that is not suitable for open-field plant growth.
There are many kinds of greenhouses, which can be divided into many kinds according to different roof truss materials, lighting materials, shape and heating conditions, such as glass greenhouse, plastic greenhouse, single-roof greenhouse, multi-roof greenhouse, single-roof greenhouse, double-roof greenhouse, warming greenhouse, non-warming greenhouse and so on. Greenhouse structure should be sealed and insulated, but it should be easy to ventilate and cool down. Modern greenhouse equipments with temperature, humidity, light and other conditions can create the best environmental conditions for plants by computer automatic control.