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一、选择品种日光温室栽培宜选用济南圆叶莴笋、北京白笋和洛阳鸭蛋笋等。二、播种育苗晒种2~4小时,凉水浸种4小时后,用纱布包好放入冰箱,在0℃~3℃下置24小时,然后放在10℃~20℃凉爽湿润处催芽,2~4天即发芽。华北地区一般9月下旬播种,每667平方米用种50克,苗床6~7平方米。播种前每667平方米施过筛优质有机肥3000千克,磷酸二氢钾20千克,旋耕耙匀,浇水后撒种,盖土0.5~1.0厘米厚。
First, the choice of varieties Sunlight greenhouse cultivation should use Jinan leaf lettuce, Beijing white bamboo shoots and Luoyang duck egg bamboo shoots. Second, seeding nursery sunburn 2 to 4 hours, cold soaking seed 4 hours, wrapped in gauze into the refrigerator, at 0 ℃ ~ 3 ℃ for 24 hours, and then placed in the cool and humid 10 ~ 20 ℃ germination, 2 ~ 4 days that is germination. North China is generally sown in late September, 50 grams per 667 square meters, seedbed 6 ~ 7 square meters. Before sowing every 667 square meters through the sieve quality organic fertilizer 3000 kg, potassium dihydrogen phosphate 20 kg, rotary harrow, watering and sowing, covered with soil 0.5 to 1.0 cm thick.