龙山公社辽海屯大队七队1973年夺得大葱大面积丰产,平均亩产4,720斤、每棵重1斤左右。葱的质量好.白长心实,脖粗叶小,葱干根净。他们的主要经验是:1.选用良种:这个队除从河北海阳、貂布洛等地引种外,还自行选育良种.选棵粗、棵壮。品种特征明显的白露葱秧单独栽植.加强肥水管理,第二年春天剔除杂株。2.培育壮苗:白露葱应在“白露”前后4～5天整地播种.播种过 Longshan commune Liaohaitun seven teams won the large area of ​​1973 large-yielding spring onions, the average yield 4,720 pounds, each weighing about 1 kg. Onion good quality. White long heart, neck rough leaves small, onion dry root net. Their main experience is: 1. Selection of elite species: In addition to this team from Hebei Haiyang, such as introduction of the introduction of martial arts, but also their own breeding varieties. The obvious characteristics of the white lotus seedlings planted alone to strengthen fertilizer and water management, remove the second spring plant. 2. Nurture strong seedlings: white onions should be in the “white dew” 4 to 5 days before sowing