摘要
在盆栽条件下研究了壤土土壤最优施肥方案下不同施氮方法对甘蔗一些生理性状乃至产量和糖分的影响 ,拟在探讨壤土甘蔗生产的适宜施氮时期和施氮次数 ,为甘蔗生产提供合理的施氮方法及理论依据。结果表明 ,前期重施氮肥 ,施氮次数减少至 2次或 1次 ,各生长时期的生理性状都有利于蔗茎产量的形成和蔗茎蔗糖分的积累 ,对提高蔗茎产量。
An experiment was conducted to study the effects of cane yield formation and sugar accumulation with different methods of nitrogen fertilization under optimum fertilizing model by means of pot condition in sugarcane. The aim of the study was to explore the suitable date and suitable times for nitrogen application,and to provide the reasonable method of N fertilization and its basis theory.The results showed that under the condition of heavy nitrogen during earlier growing stage with 2 time or 1 time application, all the physiological characters in different growing stages were favor to the formation of cane yield and the accumulation of sucrose, which increased the cane yield and sucrose content.
基金
广东省自然科学基金资助项目
关键词
甘蔗
氮肥
施肥方法
产量
糖分
叶绿素含量
sugarcane
fertilization
physiological and biochemical characters
