Application of fluorescence spectrum to precisely inverse paddy rice nitrogen content
文献类型：期刊论文
| 作者 | Yang, J.1; Shi, S.1,2; Gong, W.1,2; Du, L.1,3; Ma, Y. Y.1,2; Zhu, B.1; Song, S. L.4 |
| 刊名 | PLANT SOIL AND ENVIRONMENT
 |
| 出版日期 | 2015 |
| 卷号 | 61期号:4页码:182-188 |
| 关键词 | remote sensing N fertilization strategies nutrient stress chlorophyll |
| 英文摘要 | Paddy rice is important for Chinese agriculture and crop production, which largely depends on the leaf nitrogen (N) levels. The purpose of this study is to discuss the relationship between the fluorescence parameters and leaf N content of paddy rice and to test their performance in inversing N content of crops through back-propagation (B-P) neural network. In the correlative analysis of the fluorescence parameters and the N content, we found that the correlation between fluorescence ratios (F740/F685 and F685/F525 (F740, F685, F525 - intensity of fluorescence at 740, 685 and 525 nm, respectively)) and the N content (R-2 are 0.735 and 0.4342, respectively) is weaker than that between the intensity of fluorescence peaks (F685 and F740) and N content (R-2 are 0.9743 and 0.9686, respectively). Our studies show that the accuracy and precision of N content inversion which is acquired from the intensity of fluorescence peaks through the B-P neural network model are significantly improved (root mean square error (MSRE) = 0.1702, the residual changes between -0.1-0.1 mg/g) compared with the fluorescence ratio (MSRE = 0.3655, the residual changes from -0.3-0.3 mg/g). Results demonstrate that the intensity of fluorescence peaks can be as a characteristic parameter to estimate N content of crops leaf. The B-P neural network model will be serviceable approach in inversing N content of paddy leaf. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Agronomy |
| 研究领域[WOS] | Agriculture |
| 关键词[WOS] | LASER-INDUCED FLUORESCENCE ; CHLOROPHYLL FLUORESCENCE ; STRESS ; WHEAT ; REFLECTANCE ; PARAMETERS ; SIGNATURES ; INDEXES ; LEAVES ; PLANTS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000354770400007 |
| 公开日期 | 2015-07-28 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/4772]  |
| 专题 | 武汉物理与数学研究所_高技术创新与发展中心 |
| 作者单位 | 1.Wuhan Univ, State Key Lab Informat Engn Surveying, Mapping & Remote Sensing, Wuhan 430079, Peoples R China 2.Collaborat Innovat Ctr Geospatial Technol, Wuhan, Peoples R China 3.Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Peoples R China 4.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, J.,Shi, S.,Gong, W.,et al. Application of fluorescence spectrum to precisely inverse paddy rice nitrogen content[J]. PLANT SOIL AND ENVIRONMENT,2015,61(4):182-188. |
| APA | Yang, J..,Shi, S..,Gong, W..,Du, L..,Ma, Y. Y..,...&Song, S. L..(2015).Application of fluorescence spectrum to precisely inverse paddy rice nitrogen content.PLANT SOIL AND ENVIRONMENT,61(4),182-188. |
| MLA | Yang, J.,et al."Application of fluorescence spectrum to precisely inverse paddy rice nitrogen content".PLANT SOIL AND ENVIRONMENT 61.4(2015):182-188. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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