Presentations at a Sept. 9 field day near Marion — on cover crops, no-till and more — will help farmers tackle Lake Erie’s phosphorus problem, said one of the event’s organizers. CFAES’s statewide outreach arm, OSU Extension, is one of the event’s sponsors. Get details. To stop harmful algal blooms, the Ohio Lake Erie Phosphorus Task Force is recommending a 40-percent cut in phosphorus loading in the lake and its tributaries.