深冬北方生产鲜菜难度大,投资高,产量低,效益也很难高得。而在日光温室栽培耐寒性强的苦菜,却投资小,技术难度小,生长期短,是一种适合冬季栽培销售对路的新鲜蔬菜。目前我区种植深冬苦菜的农户,一茬亩收入达3000～4000元。一、选用优良品种目前我区种植所用品种主要是日本苦菜和韩国 Deep winter production of fresh vegetables is difficult, high investment, low output, efficiency is also very difficult to high. In the greenhouse cultivation of cold hardy bitter herbs, but the investment is small, technical difficulty is small, the growth period is short, is a suitable winter cultivation and sales of fresh vegetables. At present, the farmers planting deep winter bitter vegetables in our district have an income of 3,000 to 4,000 yuan per mu. First, the selection of fine varieties At present, the planting varieties used in our region are mainly Japanese bitter herbs and South Korea