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为了提高单位面积经济效益，１９９８～１９９９年藁城市农技推广中心通过两年摸索，筛选出小麦一大葱一大白菜三种三收复种模式，一般小麦６６７ｍ２（亩）获产值４５０～５５０元，大葱２２００～２３００元，大白莱１２００元，合计获生产总值达４０００元左右，其具体栽培
In order to improve economic efficiency per unit area, from 1998 to 1999, Gao Agricultural Science and Technology Extension Center, through two years of exploration, screened three kinds of triple cropping patterns of wheat and green onions and Chinese cabbage. The output value of 667m2 (mu) of wheat was 450 ~ 550yuan, Onion 2200 ~ 2300 yuan, 1200 yuan Daibailai, the total output value of 4,000 yuan, the specific cultivation