Commentary: Stay away from phosphorous when fertilizing

03/30/2010 | (Mich.)

Phosphorous levels in the Huron River in Ann Arbor, Mich., must be reduced by 50% to meet water-quality standards, so gardeners in the area should try to avoid phosphorus fertilizer when tending to their lawns, writes Matthew Naud, the city's environmental coordinator. Most local lawn professionals and garden shops should be able to provide alternatives to phosphorus fertilizers. Naud says most soils in Ann Arbor already have enough phosphorus to grow grass.

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