In the current work variable rate technology was applied on fertilizers application, irrigation schedule based on water consumption use and drainage system based on soil salinity and/or soil compaction.
Differential GPS attached with laptop was used to locate the zones boundary and initial soil samples based upon
grid system telling the tractor where specific locations (site specific) within the field were.
The GIS system (geostatistical analysis module) used this positional information from the GPS to access data about the field at specific location. Information then was sent to the operator about the field conditions.
Using predetermined calculations, the operator then allowed the required amount of fertilizers to be distributed, executed the irrigation scheme and identified the shale patches to deal with throughout the different field zones.
VRA could be discussed in the following lines: