Which of the following is an example of a BMP?

• A. Over-irrigation of fields
• B. Crop rotation
• C. Monocropping without soil conservation
• D. Dumping manure directly into a lake

Answer: (B)

Best Management Practices are practical, science-based methods farmers use to protect soil, water, and resources while maintaining productivity. Crop rotation fits this idea well because it alternates crops to improve soil structure and fertility, reduce pest and disease pressure, and lessen the need for chemical inputs. By changing what’s grown in a field over time, you boost organic matter, enhance soil health, and reduce erosion and nutrient losses, which are key goals of BMPs.

Over-irrigation wastes water and often causes runoff that carries nutrients and sediments into waterways, undermining water quality. Monocropping without soil conservation wears out the soil, increasing erosion and nutrient depletion. Dumping manure directly into a lake causes pollution and eutrophication, clearly not a best management practice.