PrecisionMany farmers now use computers to help them track crop production variables. Precision agriculture is a farming system that uses new technology to allow closer, more site-specific management of the factors affecting crop production.

With GPS and yield monitors, farmers can measure their output more precisely by matching yield data with the location in the field. Special computer-driven equipment can change the rate at which fertilizers, seed, plant health products and other inputs are used, based on the needs of the soil and crop in a particular portion of a field.