硬头黄竹秆形结构及毛竹专用肥对其影响研究

Culm Form Characteristics of Bambusa rigida and the Influence of Special Bamboo Fertilizer

以赣南地区的硬头黄竹为研究对象,采取施用毛竹专用肥的营养管理手段,研究施肥和对照处理硬头黄竹秆形结构特性,探讨毛竹专用肥对硬头黄竹生长的调节作用。结果表明,硬头黄竹节间长随节位数变化规律呈现"短-长-短"的变异模式。施肥提高了竹最长节出现的节位数和最长节的长度。施肥对壁厚和壁厚随高度的变化无影响,但会降低竹尖削度,且施肥处理秆重随高度分布较均匀,因此施肥处理硬头黄竹秆形较好,利于加工利用。同时对各指标间进行了方程拟合。结果表明,秆重与胸径和壁厚显著相关,与秆高极显著相关;秆高与胸径和壁厚极显著相关。

Study on the culm form characteristics of Bambusa rigida,which widely distributed in south of Jiangxi Province,and analysis of the effect of the special bamboo fertilizer on it were conducted through comparison between treatment with special fertilizer and control check（ CK）. The results showed that internode length varied with a tendency of ＂short-long-short ＂ model. Fertilization improved the length of the longest internode and the number of nodes. Fertilization had no influence on wall thickness, but could reduce taperingness, and culm weight showed a uniform variation with height dynamics under fertilization. Therefore,the culm form performed better and was easy for utilization under fertilization. The results of equation fitting showed that culm weight had significant correlation with DBH and wall thickness,culm weight had extremely significant correlation with culm height,culm height had extremely significant with DBH and wall thickness.