How to build a plastic greenhouse

How to build a plastic greenhouse

At present, there are already stereotyped green seedling plastic greenhouses, each of which covers an area of more than 300 square meters and is relatively expensive. Professional flower growers can make simple plastic greenhouses for cultivating cold-resistant flower seedlings in early spring, autumn and winter.

The plastic greenhouse is composed of 6 parts including columns, arch rods, tie rods, pressure rods, plastic films and doors and windows. The columns can be made of logs or reinforced concrete columns with a thickness of 10x10 cm. The depth of the buried soil is 50 cm to 60 cm. The middle two rows are higher than the ground. rwr to: Kugu rice, the two side rows are 1 meter higher than the ground, and the top of the column gradually decreases from the middle two rows to the east and west sides, and a total of six rows are buried. The distance between the uprights shall not be greater than 2 meters, and shall be vertical. Then use 12-16mm diameter steel bars to bend into arch rods, and tie them to the top of the east-west column to serve as a skeleton for supporting the membrane. After the arch rods are tied, in order to connect the scaffolding as a whole, a steel bar is tied down about 30 cm from the top of the column in a north-south direction as a tie rod. At this time, the scaffolding frame is completed.

When covering the greenhouse, polyethylene or polyvinyl chloride plastic film should be used. At present, a sky blue film is produced; it can slow down the strong light at noon and can be used in the greenhouse for cutting and raising seedlings. If the shed is large, several pieces of film need to be ironed together, and the four peripheral feet of the film should be 30 to 50 cm longer than the scaffold to be fixed by burying the soil. In order to fix the film tightly on the scaffold, the film needs to be pressed on it after the film is covered. The pressure rods can be tightly pressed against the film between the two arch rods with nylon ropes with a thickness of centimeters. At this time, the film is pressed to the tie rods and fixed, so that the roof becomes equidistant waves. Both ends of the pressure rod should be tied to a rock or short wooden rod, and then buried in the soil, so that the film can be fastened and fixed, and finally the door should be left on the south side.c