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Purdue Agronomy Farm Soil Background (781807)

Listed in Datasets

By Craig S. T. Daughtry

The purpose of this experiment was to examine the effects of soil background (soil moisture) on the spectral response of corn.

Additional materials available

Version 1.0 - published on 22 Apr 2015 doi:10.4231/R78P5XFX - cite this Archived on 25 Oct 2016

Licensed under CC0 1.0 Universal


The purpose of this experiment was to examine the effects of soil background (soil moisture) on the spectral response of corn. The treatments were:

  • 2 surface moisture levels (moist and dry)

Four replications were used.

Spectral reflectance measurements were made with the Exotech 20C field spectroradiometer system. Radiant temperature and overhead color photographs of the canopies were obtained simultaneously with the reflectance measurements. The agronomic measurements of the plots included development stage, percent soil cover, plant height, plant biomass, surface soil moisture and conditions. Grain yields were measured at harvest time.

The test took place in 1978.

The supporting docs include a brief summary of used instruments, a wavelength table (Wavelength_ASCII.txt), reflectance note and reflectance tables (ReflectanceTable206.txt and ReflectanceTableMulti.txt), and file format description (ExperimentDataFormat3.txt). The format description file is in ASCII format in lines of 80 characters.

This research dataset is part the Field Research Data Library that consists of over 200,000 spectral observations of soils and vegetation that have been collected since 1972 till 1991 as part of the research focused on vegetation and soils at the Laboratory for Applications of Remote Sensing (LARS) located at the Purdue University.

Cite this work

Researchers should cite this work as follows:



  • Location: Purdue Agronomy Farm, West Lafayette, IN
  • County: Tippecanoe
  • Latitude/Longitude: 0402813N 0865927W
  • Illumination: Solar
  • Spectrometer: Exotech 20C-SW
  • Wavelength Range: 0.40-2.40 um
  • Experiment Type: Crops - Corn
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