Information on fertilizing shrubs and trees on home lanscapes.

Online source for organic gardening products including fertilizers, biological pest control, soil test kits.

Details the benefits of and how to fertilize lawns.

Debates whether to fertilize with organic or inorganic products.

The North Carolina Department of Agriculture and Consumer Services offers advice on the fertilizer penalty system.

Explains the necessities of fertilizing plants.

Explains the best way to fertilize these types of plants.

Concise discussion about organic and inorganic fertilizing along with a number of lawn fertilization topics.

A range of lawn fertilizing articles beginning with "Choosing Fertilizers for Home Lawns".

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.

Outlines general fertilizer practices, nitrogen and phosphorus requirements, and application timing for lawns.

Offers a database and search function of a range of articles about fertilizers.

Information on fertilizers to supplement nutrients in the soil.

Information on products and their content of heavy metals, along with fertilizer laws and label requirements.