Lesson 5 - Prescription Map Development

Background
A key point of the data analysis process is making decisions with regard to future field management. A variable rate fertilizer prescription map is an example of when integrated spatial data layers are used to differentiate field management according to local needs. In this lesson, prescription maps have been developed for phosphorous, lime and nitrate using recommendations for corn provided by the University of Nebraska-Lincoln (P and N) and North-Central Regional Committee (lime). When developed, prescription maps can be transferred to the application rate controlling unit using the popular shape file format or a proprietary binary code, which can be created using a third-party software.

Objectives

Develop phosphorous, lime and nitrate variable rate application maps using different algorithms
Investigate a relationship between two different spatial data layers

Instructions	Objective	Input data	Output project
Exercise_5-1.pdf	Phosphorus application map	Project_5-0.map	Project_5-1.map
Exercise_5-2.pdf	Lime application map	LR_6.5.txt	Project_5-2.map
Exercise_5-3.pdf	Nitrate application map		Project_5-3.map
Exercise_5-4.pdf	Prescription maps layout		Project_5-4.map
Exercise_5-5.pdf	Spatial data comparison		Project_5-5.map & Spreadsheet_5-5.xls

Please e-mail vadamchuk2@unl.edu to obtain the password allowing complete access.

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