Spatial Variability and Relationship of Spectral Reflectance and Growth Status to Corn Canopy in the Different Growth Stage

DOI

10.2991/mmsa-18.2018.99How to use a DOI?

Keywords

corn; seedling stage; spectral characteristic; GPS; precision fertilizer

Abstract

In order to finding a convenient way of acquiring chlorophyll spatial distribution in different growth stage, the canopy reflectance of corn seedling and the relationship between the spectral reflectance of corn seeding and growth were analyzed. The results indicated that the spatial variability of the canopy chlorophyll content of corn was variant in different growth stages. The variance was not reformed over the growth stages. There are not high correlations between chlorophyll content and RVI. The chlorophyll content showed better correlations on with NDVI and with reflectance of 550nm. Focus on the relationship between reflectance of 550nm and chlorophyll, it can be found that the correlation coefficient was about 0.88~0.69. It reached highest before five leaves. It showed that the reflectance on 550nm may characterize the amount of chlorophyll. It could help to guide the fertilization during the growth stages of corn.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Shuqiang Li
PY  - 2018/03
DA  - 2018/03
TI  - Spatial Variability and Relationship of Spectral Reflectance and Growth Status to Corn Canopy in the Different Growth Stage
BT  - Proceedings of the 2018 International Conference on Mathematics, Modelling, Simulation and Algorithms (MMSA 2018)
PB  - Atlantis Press
SP  - 450
EP  - 453
SN  - 1951-6851
UR  - https://doi.org/10.2991/mmsa-18.2018.99
DO  - 10.2991/mmsa-18.2018.99
ID  - Li2018/03
ER  -