Aside from yield monitoring, farmers rely on other related techniques. These include “variable planting,” “crop scouting,” “variable rate chemical application” and others less predominate techniques displayed in Fig 2. “Variable planting” is basically using the data collected from previous crop cycles to help determine what should be planted where and how much of it should be planted. This can be automated by using seeding machines with yield monitoring data from previous crop seasons (Pfister, 1998). “Crop scouting” is the collection and track data on the growing crop, and the identification of any problems that may arise and the determination of what action should be taken to stop or eliminate the problem. “Variable rate chemical application” is related to automated sprayer systems in which the farmer can use the data previously collected for determining which areas, if any, need chemical intervention and if so how much is needed (Pfister, 1998). They do this by inserting the data into the machine responsible and it will take care of the rest (variable planting also uses similar methods).