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日光温室如何正确使用压膜线压膜？
压膜线压膜即温室盖上棚膜并将棚膜四周固定后，在棚膜上面南北拉上压膜线（每隔0。75-lm用一根，膜前固定在地锚上，在温室的后坡上提前固定好一根不低于8号粗的铁丝，将压膜线的北段固定在铁丝上），将棚膜压住，防止棚膜被风刮起，此法代替了过去用小竹竿压膜的方法，增加了透光率。
Film-pressing line is that greenhouse is covered with plastic film and fixed around the plastic film, then the plastic film-pressing line is drawn north and South on the plastic film (every 0 intervals). 75-lm is fixed on the anchor in front of the film, a wire no less than 8 thick is fixed in advance on the back slope of the greenhouse, and the northern section of the film-pressing line is fixed on the wire. The film is pressed down to prevent the film from being blown up by the wind. This method replaces the previous method of pressing the film with a small bamboo pole and increases the transmittance.
这是因为压膜线比竹竿细，遮光少，温室内进光多，有利于提高棚室内温度，促进光合作用。压膜线最好选用尼龙绳。该技术刚兴起时使用钢丝压膜，现在之所以用尼龙绳代替钢丝，主要是因为钢丝容易损坏棚膜，尤其是安装了卷帘机的温室，卷帘机在上下滚动的过程中，很容易将有钢丝地方的棚膜压破。
This is because the film-pressing line is thinner than the bamboo pole, less shading and more light entering the greenhouse, which is conducive to raising the temperature of the greenhouse and promoting photosynthesis. Nylon rope is the best choice for film-pressing line. When this technology was first developed, steel wire was used to press film. Now nylon rope is used to replace steel wire, mainly because steel wire is easy to damage the film, especially in greenhouse where the curtain roller is installed. In the process of rolling up and down, it is easy to crush the film in the place of steel wire.
冬天棚膜破裂后如果发现不及时，棚内温度降低很快，严重影响棚内辣椒长势。用钢丝压膜在风力较大时，棚膜上下起伏幅度较大，因为钢丝很细（直径在0。2-0。3cm)，与棚膜的接触面积较小，这样棚膜也很容易被钢丝勒破，而尼龙绳较粗(一般直径在0。5-0。
If it is not found in time after the breakage of the plastic film in winter, the temperature in the plastic film will decrease rapidly, which will seriously affect the growth of pepper in the plastic film. When the wind force is large, the fluctuation range of the film is large, because the steel wire is very fine (diameter is 0). 2-0. 3 cm), the contact area with the shed film is small, so the shed film is also easy to be broken by steel wire, while the nylon rope is thicker (generally 0 in diameter). 5-0.
8cm)，接触面积大，发生压膜绳勒坏棚膜的可能性会大大降低。在压棚膜时最好还是选用尼龙绳，但要注意在大棚拐角处放上点碎布或自行车外胎压于尼龙绳底下，以减少转角处尼龙绳对棚膜的损坏。
8 cm, the contact area is large, the possibility of plastic film strangulation by film-pressing rope will be greatly reduced. It is better to use nylon rope when pressing film, but pay attention to placing rags or bicycle tyres under nylon rope at the corner of the greenhouse to reduce the damage of nylon rope to film at the corner.
Film-pressing line is that greenhouse is covered with plastic film and fixed around the plastic film, then the plastic film-pressing line is drawn north and South on the plastic film (every 0 intervals). 75-lm is fixed on the anchor in front of the film, a wire no less than 8 thick is fixed in advance on the back slope of the greenhouse, and the northern section of the film-pressing line is fixed on the wire. The film is pressed down to prevent the film from being blown up by the wind. This method replaces the previous method of pressing the film with a small bamboo pole and increases the transmittance.
这是因为压膜线比竹竿细，遮光少，温室内进光多，有利于提高棚室内温度，促进光合作用。压膜线最好选用尼龙绳。该技术刚兴起时使用钢丝压膜，现在之所以用尼龙绳代替钢丝，主要是因为钢丝容易损坏棚膜，尤其是安装了卷帘机的温室，卷帘机在上下滚动的过程中，很容易将有钢丝地方的棚膜压破。
This is because the film-pressing line is thinner than the bamboo pole, less shading and more light entering the greenhouse, which is conducive to raising the temperature of the greenhouse and promoting photosynthesis. Nylon rope is the best choice for film-pressing line. When this technology was first developed, steel wire was used to press film. Now nylon rope is used to replace steel wire, mainly because steel wire is easy to damage the film, especially in greenhouse where the curtain roller is installed. In the process of rolling up and down, it is easy to crush the film in the place of steel wire.
冬天棚膜破裂后如果发现不及时，棚内温度降低很快，严重影响棚内辣椒长势。用钢丝压膜在风力较大时，棚膜上下起伏幅度较大，因为钢丝很细（直径在0。2-0。3cm)，与棚膜的接触面积较小，这样棚膜也很容易被钢丝勒破，而尼龙绳较粗(一般直径在0。5-0。
If it is not found in time after the breakage of the plastic film in winter, the temperature in the plastic film will decrease rapidly, which will seriously affect the growth of pepper in the plastic film. When the wind force is large, the fluctuation range of the film is large, because the steel wire is very fine (diameter is 0). 2-0. 3 cm), the contact area with the shed film is small, so the shed film is also easy to be broken by steel wire, while the nylon rope is thicker (generally 0 in diameter). 5-0.
8cm)，接触面积大，发生压膜绳勒坏棚膜的可能性会大大降低。在压棚膜时最好还是选用尼龙绳，但要注意在大棚拐角处放上点碎布或自行车外胎压于尼龙绳底下，以减少转角处尼龙绳对棚膜的损坏。
8 cm, the contact area is large, the possibility of plastic film strangulation by film-pressing rope will be greatly reduced. It is better to use nylon rope when pressing film, but pay attention to placing rags or bicycle tyres under nylon rope at the corner of the greenhouse to reduce the damage of nylon rope to film at the corner.
