Datasets

creator: Craig S. T. Daughtry

Total is 49 Results
Purdue Agronomy Farm Soil Background (781807)

10.4231/R78P5XFX

Craig S. T. Daughtry

04/22/2015

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 me...

Agriculture Corn Crop Science Crops Exotech 20C-SW LARS Remote Sensing Soil Science solar illumination spectral observations spectrometer

Purdue Agronomy Farm Soybean, Potassium, and Phosphorous (781804)

10.4231/R75X26VZ

Craig S. T. Daughtry

04/21/2015

The purpose of this experiment was to examine the effects of different levels of soil phosphorous and potassium on the reflectance and radiant temperatures of soybeans. Plots for data collection were selected from a long term experiment. Measurements of...

Agriculture Corn Crop Science Crops Exotech 100 Exotech 20C-SW LARS radiometer Remote Sensing Soil Science solar illumination spectral observations spectrometer

Purdue Agronomy Farm Soybean Management (781805)

10.4231/R7TH8JNF

Craig S. T. Daughtry

05/04/2015

The purpose of this experiment was to examine the effect of important cultural/management practices on the reflectance of soybeans. The treatments (cultural practices) included row width, cultivar, and population. Measurements were made at approximately 10...

Agriculture Crop Science Crops Exotech 100 Exotech 20C-SW LARS radiometer Remote Sensing Soil Science solar illumination Soybeans spectral observations spectrometer

Purdue Agronomy Farm Calibration (781806)

10.4231/R76T0JK1

Craig S. T. Daughtry

05/04/2015

This calibration 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 fi...

Agronomy calibration Crop Science Crops Exotech 20C-SW LARS reflectance references Remote Sensing Soil Science solar illumination spectral observations spectrometer

Purdue Agronomy Farm Corn Nitrogen (781802)

10.4231/R7SQ8XBQ

Craig S. T. Daughtry

04/22/2015

Nitrogen fertilization is one of the primary factors responsible for the increased yields in the United States in the past 15 years. Four levels of fertilization, 0, 67, 134, and 202 kg/hectare, providing a range from distinctly deficient to abundant have...

Agriculture Corn Crop Science Crops Exotech 100 Exotech 20C-SW LARS radiometer Remote Sensing Soil Science solar illumination spectral observations spectrometer

Purdue Agronomy Farm Corn Potassium and Phosphorous (781803)

10.4231/R7F769HT

Craig S. T. Daughtry

05/04/2015

The purpose of this experiment was to examine the effects of different levels of soil phosphorous and potassium on the reflectance and radiant temperatures of corn. Plots for data collection were selected from a long term experiment. Measurements of ref...

Agriculture Corn Crop Science Crops Exotech 100 Exotech 20C-SW LARS radiometer Remote Sensing Soil Science solar illumination spectral observations spectrometer

Purdue Agronomy Farm Corn Moisture Stress (781801)

10.4231/R7J67DWZ

Craig S. T. Daughtry

04/22/2015

The purpose of this experiment was to examine the effects of moisture stress on the reflectance and radiant temperatures of corn. The experiment was established on the Managed Soil Moisture System (MSMS). The MSMS facility is a series of plastic-lined plot...

Agriculture Corn Crop Science Crops Exotech 100 Exotech 20C-SW LARS Remote Sensing Soil Science solar illumination spectral observations spectrometer

Purdue Agronomy Farm Corn Leaf Nitrogen (791812)

10.4231/R7X9287B

Craig S. T. Daughtry

05/04/2015

The test took place in 1979. 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 des...

Agriculture Corn Crop Science Crops LARS radiometer Remote Sensing Soil Science solar illumination spectral observations

Purdue Agronomy Farm Soybean Row Direction (791810)

10.4231/R7222RQ7

Craig S. T. Daughtry

05/04/2015

The objective of the experiment is to determine the effect of rows and row direction, variables in the area of cultural practices, on the reflective response of a soybean canopy as a function of azimuth and zenith sun angles. The design of the experiment i...

Agriculture Corn Crop Science Crops Exotech 100 LARS radiometer Remote Sensing Soil Science solar illumination spectral observations

Purdue Agronomy Farm Instrument Altitude (791811)

10.4231/R75T3HFN

Craig S. T. Daughtry

05/05/2015

The object of the experiment is to determine how the canopy reflectance varies as a function of height above the crop and, particularly, what minimum height is needed to acquire repeatable reflectance measurements. Data were acquired on three canopies, mat...

Agriculture Corn Crop Science Crops Exotech 100 LARS radiometer Remote Sensing Soil Science solar illumination Soybeans spectral observations

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