Column: You don't need fertilizers to feed green plants

10/16/2009 | Tampa Tribune (Fla.), The

Craig Chandler, a professor of horticultural sciences at the University of Florida's Gulf Coast Research and Education Center, reminds homeowners and lawn-care professionals that fertilizers are not plant food. So what do plants need to make their own food? Simply water, carbon dioxide (which they obtain from the air) and naturally occurring soil nutrients such as nitrogen, phosphorus and potassium.

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