糖蔗养分运筹技术研究

Studies on techniques of fertilization mode for sugarcane

通过田间试验研究了不同养分运筹模式对甘蔗产量、效益的影响。结果表明,随着施肥次数的增加,甘蔗株高、单茎重、产量及效益均呈较明显增加趋势。采用一基三追、一基二追、一基一追施肥处理单茎重较一次性施肥分别增加9.0%、6.8%和4.5%,产量分别提高15.7%、12.5%和10.1%,每667m2生产效益较习惯施肥分别提高298、250、227元。说明甘蔗生产适宜采用一基三追或一基二追养分运筹模式。

Field trials were conducted to study the influence of different fertilization models on sugarcane yield and profit. Results displayed that sugarcane height、weight per stem、yield and production profit were significantly increased as more fertilization times. Basal-application and top-dressing three times、basal-application and top-dressing twice、basal-application and top-dressing one time, improved single stem weight and production respectively by 9.6% 、6.8% and 4.5%,15.7% 、12.5% and 10.1%, in comparison to single basal-application; Therefore increased production profit respectively by 298、250、227 RMB/667 m2. These implied that Basal-application and top-dressing three times or basal-application and top-dressing should be the suitable fertilization models for sugarcane production.