机械化模式下不同追肥量对甘蔗品种产量的影响

摘要

Seven sugarcane varieties were studied on cane yield and its composed characters, elongation speed from three additional fertilizer application under mechanization mode. The results showed that cane yield and its composed characters were decided by variety, the elongation speed from July to August and the speed margin were useful references to variety evaluation and economical management. Seven varieties were divide by two classification through principal component analysis on cane yield and its composed characters,and the cultivating points to different variety under mechanization mode were discussed.%在机械化生产模式下,研究3种追肥量处理对7个甘蔗品种的蔗茎产量及其构成性状、蔗茎伸长速度的影响.研究结果表明,蔗茎产量的构成主要取决于品种特性,7～8月份月长速和月长速差值可作为了解品种伸长生长特性和进行节本管理的有益指标,对蔗茎产量及其构成性状的主成分分析将供试品种分为两种产量类型,并讨论了不同类型品种在机械化生产模式下的栽培管理要点.