统计分析在烤烟营养评价和推荐施肥中的应用 Ⅱ.多元线性回归分析和通径分析  

Application of Statistics In Evaluation of Nutrition Statues and Recommended Fertilization of Flue cured Tobacco Ⅱ Multiple Linear Regression and Path Coeffcient Analysis

作　　者：胡国松[1,2] 康健 赵振山[1,2] 赵元宽 赵兴 刘国顺[1,2] 

机构地区：[1]河南农业大学国家烟草栽培生理生化研究基地 [2]中国烟叶生产购销公司

出　　处：《河南农业大学学报》1998年第S1期30-34,共5页Journal of Henan Agricultural University

摘　　要：多元线性回归分析和通径分析的结果指出，Ｐ和Ｆｅ肥对利川烟叶的香吃味有着较大的负相关，而Ｎ，Ｃｕ和Ｋ对香吃味却有较大的正相关。在利川当地生产条件下，按营养元素对香吃味影响的相对大小排序为：Ｐ＞Ｆｅ＞Ｎ＞Ｂ＞Ｃａ＞Ｚｎ＞Ｋ＞Ｃｕ＞Ｍｇ＞Ｍｎ＞Ｓ，其中，Ｎ，Ｃａ，Ｚｎ，Ｋ，Ｃｕ和Ｍｎ为正效应，而Ｐ，Ｆｅ，Ｂ，Ｍｇ和Ｓ为负效应。建议适当增加Ｎ肥和Ｃｕ肥的施用量，降低Ｐ肥的施用量，降低烤烟对Ｆｅ的吸收。The results of both multiple linear regression and path coefficient analysis indicated that phosphorus and iron contents in flue cured tobacco leaves of Lichuan reduced the smoking quality,While N,Cu and K application could increase the smoking qualiry,which was in accordance with the results of linear correlation analysis.In current production conditions of Lichuan,the influence of nutrients on smoking quality of flue cured tobacco decreased in the order of P>Fe>N>B>Ca>Zn>K>Cu>Mg>Mn>S,among which N,Cu,Ca,Zn,K and Mn increased the smoking quality while the others decreased it.It was recommended that the N and Cu application be increased,and that the P application and Fe absorbtion be reduced.

关 键 词：烤烟 香吃味 营养 施肥 通径分析 

分 类 号：S572.06[农业科学—烟草工业]