采用3因素二次通用旋转组合设计方法,建立了施氮、磷、钾肥与石蒜鳞茎质量增长量之间的效应模型,经检验二次回归模型拟合较好。通过对肥料主效应的分析得出氮、磷、钾3因素中促进石蒜磷茎质量增加作用依次为钾肥、氮肥、磷肥；对两因素交互效应的分析得出，在氮肥和钾肥、氮肥和磷肥、磷肥和钾肥处理之间都存在一定程度的正交互效应。模型经计算机模拟寻优,对于试验地块上种植的石蒜鳞茎,氮、磷、钾因素的最佳施肥组合方案为：氮肥422.4~702.2 kg/hm2、磷肥363.6~573.4 kg/hm2、钾肥299.9 kg/hm2。
Abstract
Three factors design with universal quadratic rotation combination was used to established the effect models of the application rates of N, P and K fertilizer and the bulbous growth quantity of the plant of Lycoris radiata. The testing results showed that the quadratic regression model gave better simulation. According to the analysis of the main effect of fertilizer, it showed that N, P and K had different influences on the bulbous growth quantity, the influences on L.radiata were in such decrease order as K, N, P. Twofactor interaction analysis showed that there was a positive interaction between N and K, N and P, P and K. Computer simulation showed that the optimum fertilization combination for L.radiata was that N, P, K fertilizer amount were 422.4—702.2 kg/hm2, 363.6—573.4 kg/hm2, 299.9 kg/hm2, respectively. Key words: Lycoris radiata; fert
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参考文献
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基金
收稿日期：2008-04-16修回日期：2008-08-28基金项目：浙江林学院科研启动项目(2007FR018); 浙江省科技厅技术攻关项目(2005C32029)作者简介：刘志高(1982—)，讲师，硕士。*童再康(通讯作者)，教授，研究方向为观赏植物新品种及速生材新品种选育。Email: zktong@zjfc.edu.cn引文格式：刘志高,黄华宏,吴家胜,等. 石蒜鳞茎栽培施用氮磷钾肥的效应[J]. 南京林业大学学报:自然科学版,2009,33(2):137-140.
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