When building a greenhouse, farmers' friends need to pay attention to the following four points:

(1) Lack of rainy season drainage system

Many farmers did not consider the problem of sheds when they built sheds. There were no precautions, so that when the rain was heavy during the summer, the rain left on the shed was collected in the front face of the shed, and there was no local flow. Not going to people, even the phenomenon that the front of the greenhouse was washed away. The correct way is to dig a thing at the front of the shed and go to the drainage ditch with the same length as the greenhouse. The drainage ditch is about half a meter wide and about 30 cm deep. So that the water left on the shed will flow away at any time to prevent water from flowing into the shed.

(2) The distance between the two rows of columns is too large

Between the two rows of columns in the greenhouse, the top part of the shed is often the part of the rolled straw curtain and the roller blind machine. This part can be said to accept the pressure, which often makes the upper part Skeleton deformation. The spacing between the two rows of columns should be as small as possible, and should be about 80 cm. Only one concrete trench and a pedestrian road can be built in the middle.

(3) There are too few open spaces between the two sheds

 In order to save land, some farmers have too narrow a distance between the two sheds, and some even have about 2 meters, leaving hidden dangers to the greenhouse. In the winter, the greenhouse in the front is too big for the back, which makes the vegetable growth in the first half of the greenhouse unfavorable. Secondly, it is more harmful to the drainage. There will be a situation where the snow canopy can not be piled up when the winter snows. Therefore, the correct distance between the two sheds is 4-5 meters, so that they are neither shaded nor windproof.

(4) The lack of protection measures on the back slope

 Some farmers' friends have no covering facilities in this part of the back slope, so that they are often washed away by rain in summer, thus affecting the service life of greenhouses. Some shacks are covered with a layer of plastic cloth on the back slope, but they are often exposed to the wind and sun. Therefore, it is necessary to put a layer of plastic cloth on the back slope of the greenhouse, and then put a layer of non-woven fabric on the outer bread. Seal it with a wire every 10 meters or so, so that it can be guaranteed for five years or so. There is not much problem.