辽阳地区栽培大葱的农户较多,为了保证大葱优质高产,每年都到山东省购种,这不仅提高了生产成本,有时还出现品种不纯等问题,影响大葱生产。近年来,有的农民采取就地选种的方法,效果很好。既保证了葱籽质量,又降低了生产 In Liaoyang area, there are many peasants growing green onions. In order to ensure the high-quality and high-yielding green onions, it is purchased in Shandong Province every year. This not only raises the production cost but also occasionally breeds imprecision and affects the production of green onions. In recent years, some farmers have adopted the method of selecting seeds on the spot and the effect is very good. Not only ensure the quality of onions, but also reduce the production