Arch greenhouse safety insulation method
In general, the shed does not adopt insulation measures. Therefore, the vegetables in the shed are pulled out before and after the winter, but if the insulation measures are taken in the shed, the vegetable growth period can be extended to after the snow. In order to prolong the growth period of vegetables and increase income, vegetable farmers can take the following two measures of safety and heat preservation: First, the upper part of the arch shed and the two sides of the film are all set up by the author. After the cold weather, the upper part and both sides of the arch shed should be provided with two-film insulation. Two membranes are installed in the upper part of the arch shed, and an iron wire is pulled along the north-south direction of the arch shed, the length of which is equal to the length of the arch shed, and the wire is then fixed on the bamboo raft where the second membrane is installed. Since the distance between the two membranes is generally 25 to 30 centimeters from the outside of the greenhouse film, it is very easy to fix the position of the wire in the position of the two membranes. After the wire is fixed, the two films are hung on the wire, clamped with a clip, and the lower part can be buried with soil. Some vegetable farmers also began to try to install two membranes on both sides of the arch. However, in order to save money, the old film was used. The transmittance of these old films was extremely low, so the insulation effect was certainly not ideal. Therefore, it is recommended that the new film should be used for the vegetable farmers to set up the second membrane, so that the canopy's heat preservation function can be guaranteed, and it can receive considerable benefits. Second, the early application of plastic sheeting After the autumn vegetable colonization, the temperature is still high, the ground temperature is also high, premature mulching cage, is not conducive to take root, and even throw up the "boring root" situation. But if you do not cover the plastic film, it is not conducive to the growth of vegetables in the middle and later stages. The specific approach is: When the plant height 40 to 50 cm, the film will be rolled up in advance between the rows of vegetables, when the temperature decreases, in the vegetable stems, open a mouth, and then spread the film one by one, both sides of the pressure It can not only increase the ground temperature, but also reduce the humidity inside the greenhouse and reduce the occurrence of diseases. This has a significant effect on shed shed moisture. Freeze Dried Seafood,Flavour Freeze Dried Cod,Freeze Dried Squid Slice,Freeze Dried Cod Cat Food Ningbo Nutrition Food Technology Co.,ltd. , https://www.collagenworkshop.com