Operating the Oklahoma State Univ. Ramp_Mobile_Analysis Program V.1

Idealized 16 Step Calibration Ramp NRich NDVI Field Rate NDVI Ramp Max or Upper Limit N Application Rate YP0 YPMax

Which Part of the Ramp Do We Measure? Sense Do Not Sense

Preliminaries Start Icon for Ramp Mobile Analysis program Found under Programs Ramp Configuration Files *.dat Found under My Device, My Documents, Ramp Config Files NTech Capture Sensed Ramp Files *.txt Store in My Device, My Documents, Ramp Sensed Files Analyzed Ramp Output Files *.txt Save in My Device, My Documents, Ramp Analyzed Files Keep your HP Ipaq computer battery charged. This program along with the Microsoft program “.Net 2 Compact Framework” are stored in RAM. If the battery runs down, you will need to download “.Net 2 Compact Framework” from Microsoft, copy and install “Ramp Mobile Analysis” from our website and recreate the file structure. There is a routine in the program to screen false triggers, but it will not screen out false triggers held longer than three seconds.

Help, About the Program

Basic Instructions on How to Run the Calibration Ramp Analyzer Program Instructions are located under the Help, How to Run Program menu commands Return to the main form.

Load or Create a Ramp Configuration You will need to load a ramp configuration file before you can analyze the data. There are two OSU ramp configuration files loaded on your computer: a) the “ _Step Ramp.dat” for the 170 ft ramps and b) the “2006 8_Step Ramp.dat” file for the 90 ft long ramps. If you are sensing a ramp not created by the OSU ramp applicators you will need to create and save a ramp configuration file.

Creating Ramp Configuration Files After entering the ramp step number and the step N Listing of ramp numbers and rates entered into the program After entering all of the values for the ramp steps, save the ramp configuration file. Saving the file will also load it into the program. You can return to the main form at any time If you are using a ramp not created by the OSU ramp applicators, you will need to use this form to create a ramp configuration file.

Field Settings Enter a field ID that everyone can understand Number of Growing Degree Days from planting to one day prior to the sensing date. GDD can be obtained from the “NUE.Okstate.edu” web site The farmer or land owner estimate of the maximum likely yield in bu/ac. Expected Nitrogen Use Efficiency. The default is Normally, do not change this value. Select either the high early season growth or the normal growth algorithm. The normal growth algorithm is the standard algorithm.

File Menu Prior to analyzing the data you must load an NTech Capture sensed ramp data file. After you have completed your analysis of each field, save the output file to your computer. You can load and analyze more than one field before exiting the Ramp_Mobile_Analyzer program.

Main Form – OSU Ramp Analysis Output Response Index =YP0 NDVI/ YPmax NDVI Farmer estimated maximum likely yield, bu/ac Yield (bu/ac) with no additional N calculated with SBNRC Max. Yield (bu/ac) calculated with SBNRC from YPmaxNDVI N Rate (lb/ac) calculated based on ramp NDVI measurements N Rate (lb/ac) calculated with SBNRC with max yield set by farmer N Rate (lb/ac) calculated with SBNRC, using YPmax yield Algorithm Used Field Identification Avg. Fld. Analyze Button Field Rate NDVI NRich NDVI

Calibration Ramp Analyzer Output Morrison, OK NUE 0.6 GDD 110 Normal Growth Algorithm RampNumYP0NDVIYPMaxNDVIRIYPFPYPNRichFarmerYPMaxRampRateFarmerMaxRateYPNRichRate Average You can examine this file by “Clicking” on it in File Explorer. Microsoft Word will display the output in a presentation similar to this.