蕹菜是旋花科蔓生蔬菜,露地栽培一般3月下旬至4月上旬播种,5月上市。江西省永丰县佐龙、八江等乡镇利用菱镁大棚保温栽培早春蕹菜,取得了较好的经济效益和社会效益。早春蕹菜元月底2月初播种,3月底开始上市,6月初收获完,每667m2产量达4000￣5000kg,产值5000元,除去菱镁大棚投资 Ipomoea is Convolvulaceae sprawling vegetables, open-field cultivation generally late March to early April sowing, listed in May. Yongfeng County, Jiangxi Province, Zonong, eight rivers and other towns using magnesite greenhouse insulation cultivation of early spring cabbage, achieved good economic and social benefits. Early spring kohlrabi sowing at the end of early February, the end of March began listing, early June harvest finished, yield per 667m2 4000 ~ 5000kg, the output value of 5,000 yuan, except for the investment in magnesite greenhouse