| 数字图像技术在马铃薯氮素营养诊断中的应用 |
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| 引用本文： | 李井会,朱丽丽,宋述尧.数字图像技术在马铃薯氮素营养诊断中的应用[J].中国马铃薯,2006,20(5):257-260. |
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| 作者姓名： | 李井会 朱丽丽 宋述尧 |
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| 作者单位： | 吉林农业大学园艺学院,吉林,长春,130118 |
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| 摘 要： | 应用数码相机获取马铃薯冠层图像色彩信息,探索出马铃薯氮营养状况的一种新方法。结果表明,在块茎形成期和块茎膨大期,数码相机获取的数字图像分析得到的冠层绿光与蓝光比值(G/B)与其它描述马铃薯氮素营养状况的指标如土壤无机氮、植株全氮含量、叶柄硝酸盐浓度、叶绿素仪读数均有良好的负相关关系。
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| 关 键 词： | 马铃薯 数字图像技术 氮素营养诊断 |
| 文章编号： | 1672-3635（2006）05-0257-04 |
| 收稿时间： | 2006-03-10 |
| 修稿时间： | 2006年3月10日 |
Diagnosis of N Status of Potato Using Digital Image Processing Technique |
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| Li Jinghui,Zhu Lili,Song Shuyao.Diagnosis of N Status of Potato Using Digital Image Processing Technique[J].Chinese Potato,2006,20(5):257-260. |
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| Authors: | Li Jinghui Zhu Lili Song Shuyao |
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| Institution: | College of Horticulture, Jilin Agricultural University, Changehun, Jilin 130118, China |
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| Abstract: | This study examined a new method to measure the N status of potato by .using a digital camera to record color information reflected from the plant canopy. The results showed significant inverse relationships between G/B values and Nmin of soil, the total N of plant, the nitrate concentration of the petiole and SPAD readings at tuber initiation stage and tuber bulking stage. The results suggest that the new method have potential to monitor the N status of potato. |
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| Keywords: | potato digital image technique N status diagnosis |
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