头在分类学上属百合科葱属植物 ,优质的地下鳞茎洁白 ,头部偏向一方呈哨型 ,直径 1 .5～ 2 .5厘米。经盐渍加工后 ,清脆爽口 ,具有开胃健脾、增强食欲的作用。其优质高产栽培技术如下 :1 .选地施肥　头应以花生、豆类、早玉米、芝麻等茬口为好 ,土壤应选择湿润爽水的沙质夜  head in taxonomy is a liliaceous Allium, high-quality underground bulb white head whistling side whistle-shaped, diameter 1.5 ~ 2.5 cm. After salted processing, crisp and refreshing, with appetizers and spleen, enhance appetite. Its high quality and high yielding cultivation techniques are as follows: 1. The election fertilizer should be head with peanuts, beans, early corn, sesame and other stubble as well, the soil should be selected moist and cool sandy night