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作 者 ：顾小平 萧江华 梁文焰 林阳峰 张川

期 刊 ：林业科学 1998年 34卷 1期 页码：25-32

关键词：毛竹纸浆林；施肥；回归设计；模型；

Keywords:Pulp bamboo stand, Fertilization, Regression design, Model,

摘 要 ：采用三因素二次通用旋转组合设计方法,建立了氮、磷、钾施肥与毛竹纸浆林新竹产量相对生长率之间的效应模型,经检验二次回归模型拟合较好。通过对肥料主效应的分析,明确了本次试验氮、磷、钾三因素对毛竹新竹产量的增产作用依次为氮肥>钾肥>磷肥;对两因素交互效应的分析得出:氮、钾之间存在一定程度的正交互效应,而氮磷、磷钾间的交互效应不明显。模型经微机模拟寻优,氮、磷、钾因素取95%置信域的高产施肥组合方案为:尿素325.5～413.5kg/hm²,过磷酸钙208.5～295.5kg/hm²,氯化钾198～267kg/hm²。并对其相应的经济效益作了分析。

Abstract:With three elements design of universal quadratic rotation combination, the models are established about the effects of N, P and K fertilizer on the relative growth rate of culm output of Phyllostachys pubescens stand. By testing, the quadratic regression medel has better simulation effect than others. The analysis of the principal effect of fertilizer shows that N, P and K have different effects on the increase of the output of P.pubescens stand, and the action order is: N>K>P in this test. 2-factor interaction analysis shows that there is a positive interaction between N and K to certain extent, but there is no significant interaction between N and P, as well P and K. By computersimulating, the optimum fertilization combination is designed (within the confidence limits of 95%), i.e.urea 325.5～413.5kg/hm², superphosphate 20.5～295.5kg/hm² and potassium chloride 198～267kg/hm². Finally, the consequent economic benefit is analyzed.

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