Agricultural Producers Value-Added Investment Tax Credit Act of 2005 - Amends the Internal Revenue Code to allow individuals who materially participate in a farming business and certain farmer-owned entities a business tax credit up to $30,000 for investment in qualified value-added agricultural property. Defines "qualified value-added agricultural property" as depreciable property which is used to add value to a good or product, suitable for food or nonfood use, derived in whole or in part from organic matter which is available on a renewable basis, including agricultural crops and agricultural wastes and residues, wood wastes and residues, and domesticated animal wastes. Terminates the credit after 2010.