滴灌施硼对香蕉生长及矿质养分吸收的影响  

Effect of Boron Drip Fertrgation on Growth and Nutrients Absorption of Bananas

作　　者：邓兰生[1] 涂攀峰[1] 龚林[1] 陈康[1] 叶倩倩[1] 李中华[1] 

机构地区：[1]华南农业大学资源环境学院,广东广州510642

出　　处：《安徽农业科学》2012年第2期691-693,共3页Journal of Anhui Agricultural Sciences

基　　金：广东省自然科学基金项目(9151065003000010);农业部公益性行业(农业)科研专项项目(201103003)

摘　　要：[目的]研究滴灌施硼对香蕉生长及矿质养分吸收的影响,为香蕉生产中高效合理利用硼肥提供理论依据。[方法]在盆栽试验条件下,通过滴灌施肥系统滴施H3BO3,探讨硼对香蕉生长、农艺性状、根系参数和矿质养分吸收的影响。[结果]滴施不同硼处理对香蕉叶片数和叶片宽度的影响差异不显著,对香蕉叶片长度、假茎高度和假茎围长度的影响表现出一定的差异性,但规律性不明显;适宜的硼施用量有利于提高香蕉植株的生物量,增加根系的根长和根表面积;滴灌施硼处理对香蕉叶片、假茎和根系等各部分对氮、磷吸收的影响差异不显著,但能显著增加叶片和假茎中的硼含量。[结论]在滴灌施肥条件下,适宜的硼施用量有利于香蕉生长,增加根系的根长和根表面积,显著增加叶片和假茎中的硼含量。[ Objective ] To study the effect of boron drip fertigation on growth and nutrients absorption of bananas and provide theoretical basis lor the high-efficient and reasonable application of boron fertilizers. [ Method] A pot experiment was carried out to evaluate the effects of supplying different rate of H3 BO3 under fertigation on the growth, changes Of agronomic characteristics, root system parameters and absorption of mineral nu- trients of banana. [ Result ] There were no significant differences between the effects of B application on leaf numbers and leaf width of banana, and there showed a significant difference on leaf length,pseudostem height and pseudostem girth. Appropriate boron application could significantly pro- mote the biomass of banana and the growth of root （the root length and root surface area）. The treatments of boron drip fertigation produced no significant difference of the N and P concentration on different parts of leaf,pseudostem and root of banana,but could significantly increase the B concentration in banana leaf and pseudostem. [ Conclusion] Appropriate boron application would promote the growth of banana,increase the root length and root surface area, significantly increase the B concentration in banana leaf and pesudostem.

关 键 词：香蕉 滴灌施肥 硼 农艺性状 养分吸收 

分 类 号：S668.1[农业科学—果树学] S143.7[农业科学—园艺学]