山东省东平县近几年发展大拱棚马铃薯1000公顷,3年平均单价1.4元/千克,平均667米2产2000千克,取得了可观的经济效益。当地农民收完马铃薯后,通常接茬玉米,效益相对较低。为了解决马铃薯高效接茬问题,我们于2004年推广了大拱棚马铃薯、夏茄子、秋白菜、越冬菠菜高效“四种四收” In recent years, Dongping County, Shandong Province, has developed 1,000 hectares of potted plants with an average annual cost of 1.4 yuan / kg in 3 years and an average production rate of 667 m 2 in 2000 kg, which has achieved considerable economic benefits. After the local farmers close the potatoes, usually pick up the corn, the benefit is relatively low. In order to solve the problem of efficient potato harvesting, we popularized the large arch shed potatoes, summer eggplant, autumn cabbage, wintering spinach efficient “four harvest”