长期以来,许多菜农习惯于开沟为大葱一次性追肥,这是不科学的。因为,这样做不仅容易划断大葱的根须,还会因施肥过于集中而烧坏大葱幼嫩须根,导致干尖和枯叶现象的发生,影响大葱品质,减少产量。正确的施肥方法应该是:遵循“少吃 For a long time, many vegetable growers are accustomed to ditching one-time dressing of green onions. This is unscientific. Because this is not only easy to cut off the roots of green onions, but also due to excessive concentration of fertilizer and burned green young fibrous roots, resulting in dry tip and dead leaves phenomenon, affecting the quality of green onions and reduce production. The correct method of fertilization should be: follow ”Eat less