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塑料大棚做为一种有效的保护地栽培措施,在蔬菜、果树栽培中逐步兴起,并迅速发展起来。一九八三年,我们试验研究了在不加温的塑料大棚条件下,巨峰葡萄一年两熟的栽培技术,现将初步结果简结如下。材料与方法试材为三年生巨峰葡萄(1981年春定植的一年生扦插苗),株行距1×2m,南北行向,篱架,架高1.8m,共4行,两边行为单壁,余为“V”字型双壁,行水平整枝。保护设施为一拱形薄膜大棚,棚长42m,宽8m,面积为336平方米。夏季气温高时除去薄膜,秋季气温低时(日平均气温低于20℃)再覆膜保温。以不设保护设施的露地试区为对
Plastic greenhouses as an effective protective measures for cultivation, in vegetables, fruit trees gradually rising, and rapidly developed. In 1983, we experimentally studied the cultivation technology of Kyoho grapes in two crops per year under the condition of not warming plastic sheds. The preliminary results are summarized as follows. MATERIALS AND METHODS The Triennial Kyoho Grape (an annual cuttings planted in the spring of 1981) was planted at a distance of 1 × 2m between rows of north and south, with a height of 1.8m and a height of 1.8m. V "-shaped double wall, line horizontal pruning. Protection facilities for an arched thin film shed, greenhouse length 42m, width 8m, an area of 336 square meters. Remove the film in summer when the temperature is high, autumn when the temperature is low (average daily temperature below 20 ℃) and then film insulation. To have no protective facilities in the open area for the right