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[目的]研究桂糖02-833、桂糖97-69、桂糖02-351、桂糖03-2287、B9、桂糖02-7706个糖能兼用甘蔗新品种特性及在高产滴灌栽培条件下的营养吸收特性。[方法]分别测定各参试品种的工艺性状、农艺性状和全氮、全磷、全钾及叶绿素含量。[结果]6个新品种的蔗茎产量、生物总量和含糖量分别达180、200、25t/hm2以上,均高于对照品种新台糖22号。6个品种叶片的全氮、全磷含量在甘蔗伸长期7～11月份较高、持续时间长而稳定,到12月份开始明显下降;而全钾含量在整个测定期间呈持续升高趋势;叶绿素含量在8～10月含量较高,11月份开始下降。桂糖02-833、桂糖97-69和B9全氮、全磷、全钾、叶绿素含量在整个测定时期均高于对照品种。[结论]桂糖02-833、桂糖97-69和B9是养分吸收和利用较强的高产优质糖能兼用甘蔗品种,在生产中应加以推广。
[Objective] The research aimed to study the characteristics of new sugar cane varieties with high sugar content and high sugar content under drip irrigation The nutritional absorption characteristics. [Method] The technological traits, agronomic traits and contents of total nitrogen, total phosphorus, total potassium and chlorophyll of the tested varieties were determined respectively. [Result] The yield, biomass and sugar content of the six new varieties were above 180,200 and 25 t / hm2, respectively, which were higher than that of Xintai 22, a control variety. The contents of total nitrogen and total phosphorus in the leaves of six cultivars were higher in July to November of sugarcane elongation and lasted for a long time and remained stable until December, while the content of total potassium continued to increase throughout the measurement period. Chlorophyll Content in the 8 to October higher content, began to decline in November. Gui sugar 02-833, Gui sugar 97-69 and B9 total nitrogen, total phosphorus, total potassium, chlorophyll content were higher than the control during the entire measurement period. [Conclusion] Guitang 02-833, Guitang 97-69 and B9 are sugarcane varieties with high yield and high quality of sugar absorption and utilization, which should be popularized in production.