| 利用GreenSeeker法诊断春玉米氮素营养状况的研究 |
| |
| 引用本文： | 卢艳丽, 白由路, 杨俐苹, 王磊.利用GreenSeeker法诊断春玉米氮素营养状况的研究[J].玉米科学,2008,16(1):111-114. |
| |
| 作者姓名： | 卢艳丽 白由路 杨俐苹 王磊 |
| |
| 作者单位： | 中国农业科学院农业资源与农业区划研究所/农业部植物营养与养分循环重点开放实验室,北京,100081 |
| |
| 基金项目： | 国家“863”项目(2006AA10A302) |
| |
| 摘 要： | 利用GreenSeeker对不同氮素处理春玉米冠层和叶片进行了测定，分析了植被指数(NDVI)和叶片叶绿素a(Chla)含量和氮素(N)含量的相关性。结果表明，不同氮素处理冠层NDVI变化与叶片叶绿素a含量在整个生育期内变化趋势一致。NDVI对叶绿素变化最敏感的时期是大喇叭口期。从不同叶位的变化趋势看，NDVI随CHla、N含量的变化而表现出明显的变化，三者之间具有显著的直线相关关系。利用GreenSeeker获取的NDVI值为生产中诊断春玉米叶绿素或氮素状况提供了有效手段。
|
| 关 键 词： | 玉米 氮素营养 GreenSeeker法诊断 |
| 文章编号： | 1005-0906(2008)01-0111-04 |
| 收稿时间： | 6/7/2007 12:00:00 AM |
| 修稿时间： | 2007年6月7日 |
Diagnosis on Nitrogen Status Using GreenSeeker in Spring Maize |
| |
| LU Yan-li,BAI You-lu,YANG Li-ping,WANG Lei.Diagnosis on Nitrogen Status Using GreenSeeker in Spring Maize[J].Journal of Maize Sciences,2008,16(1):111-114. |
| |
| Authors: | LU Yan-li BAI You-lu YANG Li-ping WANG Lei |
| |
| Abstract: | In this experiment, spring maize in different N treatments was measured for their canopy and leaves using GreenSeeker. The correlation between NDVI and Chlorophyll a(Chla), as well as Nitrogen(N) was analyzed. The results indicated that canopy NDVI has similar variational trend to Chla and N in the whole growth stage. Furthermore, NDVI is most sensitive to Chla in trumpet stage. Seen from different leaf order, NDVI shows the same variational trend with Chla and N, and NDVI has significant linear correlation with Chla and N. So, based on their significant correlation, GreenSeeker provides an effective means for diagnosis of Chlorophyll a and nitrogen in spring maize. |
| |
| Keywords: | Maize Nitrogen nutrition GreenSeeker diagnosis |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《玉米科学》浏览原始摘要信息 |
| 点击此处可从《玉米科学》下载免费的PDF全文 |
