The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume XL-7/W3
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-7/W3, 65–71, 2015
https://doi.org/10.5194/isprsarchives-XL-7-W3-65-2015
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-7/W3, 65–71, 2015
https://doi.org/10.5194/isprsarchives-XL-7-W3-65-2015

  28 Apr 2015

28 Apr 2015

Estimation of chlorophyll concentration in maize using spectral reflectance

L. J. Martinez and A. Ramos L. J. Martinez and A. Ramos
  • Universidad Nacional de Colombia, Facultad de Ciencias Agrarias, Bogotá, Colombia

Keywords: crops, spectral reflectance, chlorophyll content

Abstract. The objective of this research was to identify the relationship between chlorophyll contents and spectral measurements in a maize crop. Spectral measurements were taken and the chlorophyll content was determined in leaf samples in a field experiment with different N rates. Analysis of variance showed differences in the chlorophyll content and spectral indices for the treatments and strong correlations between some reflectance indices and chlorophyll content. Due to a relationship between the N and chlorophyll contents, the results proved to be important for making decisions related to the nitrogen supply for crops, which is crucial in agriculture.