摘要
供试甘蔗品种的有效茎数和植株干重均随施Ｎ量的增加而增加，但Ｎ素生产效率下降．提高施Ｎ水平，蔗汁中Ｎ和Ｃａ的含量则相应增加，而蔗糖分以及Ｐ、Ｋ、Ｍｇ含量反而下降．在本试验条件下，供试的３个品种中，闽糖７０—６１１蔗茎产量最高，耐肥性较强；福引７９—９蔗茎产量较低，耐肥性较弱，但其蔗糖分含量高，适量施Ｎ可获最高产糖量；闽糖７７—２０８居中．
The number of millable stalk and the dry weight of plant increased with the amount of nitrogen nitrogen application, but the nitrogen production efficiency (defined as the dry matter produced per unit of nitrogen absorbed) decreased. The contents of sucrose as well as K, Mg and P in the juice were decreased with the increase of nitrogen application, but those of Ca, N were increased. Under the condiction of this experiment, we found that the cane yield of Mintang 70 611 showed the strongest nitrogen tolerance was the highest, and that of Fuyin 79 9 showed the weakest nitrogen tolerance was the lowest, but its sucrose content was the highest among three cultivars used. By propertly nitrogen application, the cultivar of Fuyin 79 9 could achieve higher sugar yield.
出处
《福建农业大学学报》
CSCD
1995年第2期195-200,共6页
Journal of Fujian Agricultural University
关键词
甘蔗
品种
产量
蔗汁质量
氮
sugarcane cultivar
nitrogen
yield
juice quality
