江苏省滨海县冬暖大棚的种植多年采用的是秋延迟蔬菜和早春蔬菜一年两作栽培,效益不高。近几年来,菜农在农业和科技部门的指导下,把一年两作变成四作,效益明显提高,收入增加了60%~80%。他们的经验是大棚苦瓜、甘蓝、黄瓜、菠菜一年四种四收,具体栽培技术如下。1.茬口安排甘蓝、苦瓜分别于年前12月下旬和1月上中旬育苗(甘蓝和苦瓜采用套种的形式,甘 Coastal County, Jiangsu Province, winter greenhouse cultivation planted for many years is delayed autumn vegetables and early spring vegetables for cultivation two years a year, the benefit is not high. In recent years, under the guidance of the departments of agriculture and science and technology, the vegetable growers have turned four crops into two crops in a year and the benefits have been significantly raised. Their incomes have increased by 60% to 80%. Their experience is greenhouses bitter gourd, cabbage, cucumber, spinach four four harvest a year, the specific cultivation techniques are as follows. 1. Stubble arranged cabbage, bitter melon respectively in late December and January in mid nursery (cabbage and bitter melon in the form of intercropping, sweet