摘要
采用四因素二次回归最优设计建立氮、磷、钾施肥及留竹密度与毛竹林竹材产量间的回归模型,同时根据投入、产出价格建立施肥和留养立竹的经济效益方程,经F检验方程拟合较好;采用产量与效益两目标函数的双频分析,得到95%置信域的毛竹林优化施肥方案是:尿素:490～609.8kg/hm2,平均549.9kg/hm2;过磷酸钙250.8～262.4kg/hm2,平均256.6kg/hm2;氯化钾43.2～123.6kg/hm2,平均83.4kg/hm2。优化的立竹留养密度是:2364～2590株/hm2,平均2477株/hm2。
By the optimum of quadratic regression for 4 factors, the regression model between fertilization, the living bamboo density and the bamboo timber output of Phyllostachys pubescens was established in the paper, meanwhile ,the economic benefit equations of the fertilization and the standing culm based on the prices of in input and output, which were tested by F-value in goodness of fitness; By hi-frequency analysis of yield and the economic benefit, the optimal fertilization and culms density scheme were obtained within the confidence interval of 95% as follows：urea 490-609.8 kg/hm^2 （average 549.9 kg/hm^2）, superphosphate 250.8-262.4 kg/hm^2 （average 256.6 kg/hm^2）, potassium chloride 43.2-123.6 kg/hm^2（average 83.4 kg/hm^2）, and culms density 2364-2590 culms/hm^2（average 2477culms/hm^2）.
出处
《中国农学通报》
CSCD
北大核心
2009年第18期166-169,共4页
Chinese Agricultural Science Bulletin
基金
国家林业局948重点项目(2008-4-32)
国家林业局林业科技成果推广计划项目"优质工业用材毛竹林丰产培育与加工利用技术推广"
关键词
毛竹
施肥
回归
模型
产量
效益
Phyllostachys pubescens, fertilization, regression, model, output, benefit
作者简介
陈志阳，男，1964年出生，湖南祁东人，副教授，主要从事森林培育、森林生态等方面的教学与研究工作。通信地址：421005湖南衡阳湖南环境生物职业技术学院园林系，Tel：0734-6092829，E-mail：yangning678787@sina．com。
