Fertilizer Product Database

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WSDA's fertilizer product database provides information on the metals concentrations of each of the nine heavy metals (arsenic, cadmium, cobalt, mercury, molybdenum, lead, nickel, selenium, and zinc) for which Washington State has developed soil loading standards. The registrants may list a higher concentration than actually found by the laboratory in order to build in a safety factor. All calculations are based on these numbers and either the state default application rates or company listed maximum application rates from the registration application. Metals concentrations levels for each registered product for each licensed company and all companies selling fertilizers will be accessible by the public at this web site.

Search for fertilizer products by Product Name or Registrant

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