Soil can vary from one point to the next in its chemical and physical makeup, which makes it very diverse. Crop yield and variations within the field can be influenced by soil properties, or pollutants that move through soil, and then into the groundwater, or runoff into lakes and streams. The importance of precision agriculture is to determine the exact areas that need to be managed to maximize yield, minimize environmental impacts, and optimize the use of resources. Precision agriculture also helps determine changes in soil quality over time, and the presence of pollutants such as salts, pesticides, and fertilizers.
             Many farmers face the same dilemma everywhere; How to increase profitability on their farms, so that they can remain competitive? The old solution would be to increase the size of the farm by economies of scale. However, many farmers believe that there could be something more accurate then just keeping daily journals of farming activities that include: planting dates, crop variety, and relying on crop consultants. Local cooperatives are now educating farmers on precision agriculture and the benefits of putting fertilizer where it is needed the most (Robert, Roggenbuck, Oct. 2002).
             Precision Agriculture is defined as information and technology based agricultural management system to identify, analyze, and manage site-soil spatial and temporal variability within fields for optimum profitability, sustainability, and protection of the environment. Precision agriculture requires information about soil properties, elevation, and landscapes, and how these characteristics affect plant growth and crop progress throughout the field each season. To determine crop production from one part of the field to another, yield monitors can be used.
             There are many different types of sensors being used in precision agriculture. The measurement of light reflected from a field are the most common sensors used. A camera with color, or co...