What benefit does using GIS and GPS provide in nutrient management?

Using GIS (Geographic Information Systems) and GPS (Global Positioning Systems) in nutrient management significantly contributes to reducing nutrient losses in the environment. These technologies allow for precise mapping and analysis of land and soil characteristics, enabling farmers to apply nutrients more accurately according to the specific needs of different areas within their fields.

By using GIS and GPS, farmers can identify nutrient deficiencies or excesses and tailor their fertilization practices accordingly. This targeted approach means that fertilizers are applied only where needed and in the appropriate amounts, which minimizes the risk of runoff and leaching into water bodies. By reducing nutrient losses, these practices help protect water quality and promote sustainable agricultural practices, which are vital for maintaining environmental health.

The other options do not accurately reflect the primary benefits of GIS and GPS in this context. Increasing fertilizer costs does not align with the aim of precision agriculture, which seeks to optimize inputs. While improving water retention in soils can be a beneficial practice, it is not a direct application of GIS and GPS technologies. Similarly, enhancing crop rotation strategies, while important in sustainable farming, is not the primary benefit of utilizing GIS and GPS in nutrient management specifically.