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韭菜生产有两个特点,一是一次播种连续采收多年,二是每年采收多次。这在生产上就相应地提出两个问题,即如何延长韭菜的采收年限,如何保持连年高产稳产和优良品质。实现这两点的技术措施是
Leek production has two characteristics, one is continuous sowing for many years, the second is harvested several times a year. This puts forward two issues correspondingly in production, that is, how to lengthen the harvesting period of leeks, how to maintain the high yield, stable yield and good quality in successive years. Technical measures to achieve these two points is