Precision Agriculture (PA) is defined as a management strategy that gathers, processes and analyzes temporal, spatial and individual data and combines it with other information to support management decisions that can then be based on estimated variability for improved resource use efficiency, productivity, quality, profitability and sustainability of agricultural production. This paper describes on-the-go spectroscopic soil sensing systems that provide quick, cost-effective, and accurate measurements for creating maps of soil properties. It also shows how these visualized soil maps assist with farmers’ needs and informs them on what they wish to know about their soil.