Source: Science Daily
For decades, phosphorus has accumulated in Wisconsin soils. Though farmers have taken steps to reduce the quantity of the agricultural nutrient applied to and running off their fields, a new study reveals that a ‘legacy’ of abundant soil phosphorus in the Yahara watershed of Southern Wisconsin has a large, direct and long-lasting impact on water quality.
https://www.sciencedaily.com/releases/2017/03/170314190230.htm
