Fertilizers are used to add nutrients to soil to help developing plants grow healthily. Sites with information explaining the chemical components of fertilizers, how to use them, and what exactly they are used for are listed here.
Extremely Green Gardening Company
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Online source for organic gardening products including fertilizers, biological pest control, soil test kits.
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Fertilizer Application
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Debates whether to fertilize with organic or inorganic products.
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Fertilizer Registration and Penalties
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The North Carolina Department of Agriculture and Consumer Services offers advice on the fertilizer penalty system.
Island Lawn and Garden
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Concise discussion about organic and inorganic fertilizing along with a number of lawn fertilization topics.
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Lawn Talk
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A range of lawn fertilizing articles beginning with "Choosing Fertilizers for Home Lawns".
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MDS Harris Turf
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A commercial soil-testing laboratory that provides soil and water testing as well as plant and tissue analysis for golf courses and athletic fields, as well as agronomic growers and dealers.
