中国烟草科学Issue(2)：23-27,5.DOI:10.3969/j.issn.1007-5119.2013.02.005
不同施肥条件下烟草冠层光谱特征与叶绿素、叶面积指数的关系
Relationship of Spectral Characteristics with Chlorophyll and Leaf Area Index in Flue-cured Tobacco Leaf
摘要
Abstract
This study aims to estimate the chlorophyll content and leaf area index (LAI) of tobacco with rapid, harmless and accurate methods to obtain the information on its growth vigor and to provide technological support for the management of cultivation. Under different fertilization conditions, we analyzed the spectral characteristics of tobacco canopy treated in different ways through ASD Field HH spectrometer, and studied the correlation of hyperspectral characteristics with chlorophyll content and LAI in tobacco canopy at nitrogen fertilizer of different levels through relevant statistical methods (such as correlation analysis and regression etc.). Under different fertilization conditions, the spectral reflectance of tobacco canopy was significantly different, normalized different vegetation index (NDVI (green) was significantly related to chlorophyll content and LAI, and the regression coefficient of established regression equation, associated probability and determination coefficient were all reaching to significant level. Therefore, the growth state of tobacco could be quickly investigated through this established estimation model, so as to control the fertilization of tobacco field and take suitable planting management measures on time.关键词
烤烟/光谱/植被指数/叶面积指数/叶绿素Key words
flue-cured tobacco/spectrum/vegetation index/leaf area index/chlorophyll分类
农业科技引用本文复制引用
苏永士,苏富强,王海波,陈彦春,马京民,胡军,吉贵峰,乔红波..不同施肥条件下烟草冠层光谱特征与叶绿素、叶面积指数的关系[J].中国烟草科学,2013,(2):23-27,5.基金项目
河南省烟草公司科技项目 （）
