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广东的夏天,气温高、日照强、雨天多。塑料大棚虽然四周的棚膜都拆除,仅剩下棚顶的薄膜,但棚内气温仍很高,不利蔬菜生长。能否用遮阴的方法来防雨和降温,使塑料大棚在广东的夏季也能栽培不耐热的蔬菜,这是解决南方大棚综合利用的重要一环,我们用不同遮光网和不同遮阴方法进行了试验,见到一些效果。县体做法是用国产的黑、灰两种颜色的遮光网作遮阴材抖,分别盖在棚膜上面和下面。盖在膜上的做法是将遮光网放在薄膜上,再一齐扣在棚上,称为
Guangdong’s summer, high temperatures, strong sunshine and rainy days. Although the plastic greenhouse shed film are removed around, leaving only the roof of the film, but the shed temperature is still high, adverse vegetable growth. Can use the shade method to rain and cool, so that the plastic greenhouse in Guangdong in the summer can also grow heat-labile vegetables, which is to solve the comprehensive utilization of southern greenhouses an important part of our use of different shading network and different shade The method was tested to see some results. County approach is to use domestic black and gray shading mesh shading material for shaking, were covered in the film above and below. Covered in the film approach is to shade the film on the film, together buckle in the shed, known as