不同施氮水平对水仙花生长和鳞茎球质量的影响

Effect of Nitrogen Application Rate on Narcissus Growth and Bulb Quality

在福建漳州九湖水仙花基地，进行不同施N水平对水仙花生长及鳞茎球品质影响的试验。结果表明，在施N范围0～138kg／hm^2，水仙花主鳞茎功能叶的叶面积增大，采收时主鳞茎大球比例增加；在供N范围276～345kg／hm^2，水仙花生长虽然没有出现受抑制现象，但分生小球数增多，主鳞茎大球率低；而以69kg/hm^2处理的水仙花生长期主鳞茎功能叶的叶面积最大，采收时分生小球少，大球比例最高。

A field experiment in effect of different N application rates on narcissus growth and bulb qu,dity was conducted in Jiuhu, Zhangzhou city, Fujian province. The results showed that the functional leaf area during vegetative growth was increased, and the rate of large bulbs was enhanced at N application rate from 0 to 138kg/hm^2. The N application from 276 to 345kg/hm^2 increased tiller numbers and reduced the rate of large bulbs. Leaf area was the biggest, tiller numbers was the lest and the rate of large bulbs was the highest in N application of 69kg/hm^2.