回归分析法确定观叶植物营养液浓度  

Application of Regression Analysis in Determination of Nutrient Solution Concentration of Foliage Plant

作　　者：张燕[1] 王志勇[1] 王鹏[1] 王锡祥[1] 

机构地区：[1]信阳农业高等专科学校园艺林学系,河南信阳464000

出　　处：《安徽农业科学》2009年第6期2478-2479,共2页Journal of Anhui Agricultural Sciences

摘　　要：[目的]探讨回归分析法在观叶植物营养液浓度确定中的应用。[方法]应用回归分析法确定观叶植物无土栽培营养液浓度,建立电导率及营养液浓度线性方程。[结果]营养液(自来水)浓度与电导率值之间的直线回归方程为:Y=1.024x+0.177,r=0.992 6。由回归方程可知,在信阳无土栽培某观叶植物品种建立的营养液浓度及电导率线性方程具有实用价值。实际操作中配制营养液时,应根据此植物习性及不同生长阶段所需营养液电导率值来确定在该地配制营养液时所需的营养元素含量。[结论]该研究为观叶植物在不同生长时期营养液配制和营养元素补给提供了科学、快速和有效的指导作用。[ Objective ] The aim was to discuss the application of the regression analysis in the determination of the nutrient solution concn, of the foliage plant. [ Method] The nutrient solution concn, of the foliage plant with the soilless culture was determined by applying regression analysis and the linear equation between the conductivity and the nutrient solution concn, was established. [ Result] The linear regression equation between the concn, of the nutrient solution （tap water） and the conductivity value was Y = 1. 024x ＋ 0. 177, r = 0. 992 6. According to the regression equation, the linear equation between the nutrient solution concn, and the conductivity established for a certain foliage plant variety with the soilless culture in Xinyang had the practical value. When the nutrient solution was prepared in the practical operation, the nutrient element content required for preparing nutrient solution in the place should be determined according to the plant habit and the conductivity of the needed nutrient solution in the different growth stages of the plant. [ Conclusion] The research provided the scientific, quick and effective guidance in the nutrient solution preparation and the nutrient element supply of the foliage plant in the different growth stages.

关 键 词：观叶植物 无土栽培 营养液浓度 回归分析法 

分 类 号：S723.134[农业科学—林木遗传育种]