利用塑料大棚生产蔬菜,近几年发展速度很快,对春提前和秋延后特别是保八九月淡季的市场供应起了很大作用,但是由于大棚生产上市集中、数量大、品种单一,给市场形成很大压力,同时造成浪费和损失。为使大棚生产能够健康发展,必须在增加栽培种类、品种多样化上下功 The use of plastic greenhouses to produce vegetables, the rapid development in recent years, the spring ahead of the early autumn and postponement, especially Paul August and September off-season market supply played a significant role, but due to the greenhouses market concentration, a large number of single species, To the market to form a lot of pressure, while causing waste and loss. In order to make the production of greenhouses healthy, we must increase cultivars and varieties