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(1) 品种结球生菜如北京青白口、山东皱叶结球生菜。散叶生菜如日本皱叶、美国大速、香港玻璃生菜和紫叶生菜。 (2) 育苗 生菜种子小,顶土能力弱,保护地栽培均采用育苗移栽。 ① 播种期:结球生菜一股苗龄30—40天,定植后60天左右可收获。温室栽培,可于1月下旬至2月初温室播种,“五一”前后上市。大棚栽培,可在2月未至3月初播种,5月末至6月初上市。
(1) Variety knot Lettuce such as Beijing Qingbaikou, Shandong cruciferous leaf lettuce. Loose leaf lettuce, such as Japan wrinkled leaves, the United States speed, Hong Kong glass lettuce and purple leaf lettuce. (2) nursery lettuce seed small, top soil ability is weak, the protective cultivation are used seedling transplanting. ① sowing: a ball of seedling age of 30-40 days, about 60 days after planting can be harvested. Greenhouse cultivation, from late January to early February sowing greenhouse, “51” before and after the market. Greenhouse cultivation, may not sow in February early March, from late May to early June listing.