Solar greenhouse construction guide: Building greenhouses easy to ignore several problems
In the process of building a solar greenhouse, some farmers may overlook some key issues that may affect the use effect and service life of the greenhouse. Here are a few problems that are easy to overlook when designing and building a solar greenhouse.
There is too little open space between one or two sheds: When building solar greenhouses, some farmers may set the distance between the two sheds too narrow in order to save land, some even only about 2 meters. While such a design saves land, it can bring a series of problems. First of all, in winter, the front greenhouses will have a larger shade on the back of the greenhouses, so that the growth of vegetables in the first half of the greenhouses is adversely affected. Secondly, the narrow distance will also bring difficulties to drainage, especially in the case of heavy rain and heavy snow, causing great trouble to drainage, the swept snow may be nowhere to pile up, and even the phenomenon of the front of the greenhouse may be washed down. It is recommended that when farmers build greenhouses, the open space distance between the two sheds is set at 5-6 meters. Such a distance can not only avoid shading each other, but also prevent wind, and improve the use of greenhouses.
Second, the lack of rainy season drainage system in greenhouses: many farmers may ignore the setting of drainage systems when building greenhouses. In the rainy season, if the rain on the solar greenhouse surface is not properly treated, it may gather in the position in front of the shed, resulting in personnel unable to enter the solar greenhouse, and even the front of the greenhouse may be washed out. It is suggested that when farmers build greenhouses, they should dig a drainage ditch about 1 meter in front of the shed that runs east-west and is the same length as the greenhouses. The width of the drain is about half a meter and the depth is about 30 centimeters, so that the rainwater on the surface of the greenhouse can run away at any time to prevent the water from flowing into the shed.
Third, the lack of protection measures on the back slope of the greenhouses earth wall: some solar greenhouse do not have covering facilities on the back slope, resulting in the back slope often being washed by rain in summer, thus affecting the service life of the solar greenhouse. Although some farmers are covered with a layer of plastic sheeting on the back slope, due to the wind and sun, the plastic sheeting will often be damaged in less than a year, making the back slope exposed again. Therefore, it is recommended that farmers should properly cover and protect the back slope when building greenhouses. For example, cover the back slope of the solar greenhouse with a layer of plastic sheeting, and cover the outside with a layer of non-woven fabric, fixed with steel wire every 10 meters, at the same time, regularly check and maintain the covering facility plastic sheeting to ensure its integrity and effectiveness.
Fourth, the lack of column support in the solar greenhouse: the top of the solar greenhouse often carries heavy objects such as rolled straw curtains and rolling machines, which are under great pressure and easily lead to the deformation of the skeleton above. If there is no proper column support inside the solar greenhouse, this pressure may be further aggravated, affecting the stability and service life of the greenhouse. Therefore, it is recommended that farmers in the construction of greenhouses, according to the size of the span of the shed, the appropriate arrangement of one to two rows of columns. These columns can effectively disperse the pressure on the top, enhance the snow resistance and pressure resistance of the greenhouse, and ensure the stability of the greenhouse in bad weather conditions.
