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发生压膜绳勒坏棚膜的可能性会大大降低
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。
When the contact area is large, the possibility of plastic film strangling by film-pressing rope will be greatly reduced. It is better to use nylon rope when pressing film, but pay attention to placing some rags or bicycle tyres under the nylon rope at the corner of the shed, so as to reduce the damage of nylon rope to film at the corner.
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。
When the contact area is large, the possibility of plastic film strangling by film-pressing rope will be greatly reduced. It is better to use nylon rope when pressing film, but pay attention to placing some rags or bicycle tyres under the nylon rope at the corner of the shed, so as to reduce the damage of nylon rope to film at the corner.
