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华北地区、冬春两季气侯干寒,是早春蔬菜生产的限制性因素,也是长期以来造成我省蔬菜淡季长、早春缺菜严重的根本原因。为解决淡季蔬菜供应,鲜菜提前上市、品种多样化。提高小拱棚覆盖栽培的经济效益。作者自1983年起连续两年采用简易的小拱棚覆盖,一膜两用,甘兰、西葫芦两种作物均获高产,经济效益显著增加,其方法是;先盖早熟甘兰一个月左右,然后,再用同一设备隔畦覆盖西葫芦,这样做不仅操作方便,节省材料,降低成本,同露地相比,鲜菜可提前15天左右上市,同时本文详尽的分析了棚温的变化规律和两种作物产量形成与棚内生态因素的相关性。
In northern China, winter and spring climate climate is dry and cold, is a limiting factor in early spring vegetable production, but also caused a long time in our province vegetables in the off-season, the root cause of serious lack of vegetables in early spring. In order to solve the off-season vegetable supply, fresh vegetables are listed ahead of time, and varieties are diversified. Improve the Economic Benefit of Small Shed Covered Cultivation. The author has been using the simple small arch shed covering for two consecutive years since 1983, and one film dual-use, cabbage and zucchini both have high yield and remarkable economic benefits. The method includes: first, , And then covered with the same equipment Zucchini, this not only easy to operate, save material, reduce costs, compared with the open field, vegetables can be listed about 15 days in advance, at the same time, the paper detailed analysis of the law of shed temperature and two Correlation between crop yield formation and ecological factors in shed.