配比施肥对5年生巨桉人工林生长的影响  

Effects of Combined Fertilization on Growth of Eucalyptus Grandis

作　　者：谢贤健[1] 张健[2] 兰代萍[3] 

机构地区：[1]内江师范学院资源与环境科学学院,四川内江641000 [2]四川农业大学林学院,四川雅安62501 [3]内江师范学院后勤基建处,四川内江641000

出　　处：《生物数学学报》2010年第1期61-70,共10页Journal of Biomathematics

基　　金：内江师范学院博士基金(09249);国家"十五"科技攻关重大项目"四川盆地低山丘陵区水土流失综合治理技术与示范"部分内容(2001BA606A-06)

摘　　要：以四川省宜宾市高县巨桉试验林为研究对象,采用4因素5水平二次通用旋转组合设计方法,建立了密度、氮、磷、钾施肥与5年生巨桉人工林单株木地上部分生物量之间的效应模型,经检验,二次回归模型拟合较好.通过对模型的交互效应分析发现:氮肥与磷肥之间存在明显的协同效应,氮肥与钾肥和磷肥与钾肥之间协同效应不明显.对回归模型进行频数分析,密度、氮、磷、钾4因素取95%的置信区间的高产栽培措施组合为:密度1860-1935株/hm^2,氮肥56-64 g/株,磷肥47-56g/株,钾肥37-46g/株.In this paper, using the design of quadratic common rotation including four factors and five levels, the basic effect model between density, nitrogenous fertilizer, phosphate fertilizer, potash fertilizer and the above-ground biomass of single tree of 5-year-old Eucalyptus Grandis plantation was established in Yi Bin Gao county Sichuan. By the testing, it conformed to the precision. Based on the interactive effect of the model, the results showed that there was obvious synergistic effect between nitrogenous fertilizer and phosphate fertilizer. On the other hand, it was inconspicuous between nitrogenous fertilizer and phosphate fertilizer as well as between phosphate fertilizer and potash fertilizer. By the frequency analysis for regression model, when the 4 factors of density, N, P and K are in the confidence limit of 95%, the combination high yield cultivated pattern was the following： density 1860-1935 trees/hm2, N 56-64 g/tree, P 47-56g/tree, K 37-46g/tree.

关 键 词：巨按 施肥 回归设计 模型 

分 类 号：S791.149[农业科学—林木遗传育种]