Cover image of publication "Fertilizing with Biosolids"

Fertilizing with Biosolids

Focuses on how biosolids can be used to supply nutrients to crops. Describes the nutrient content and fertilizer replacement value of biosolids and the relationship between biosolids nutrient inputs and crop removal of nutrients. Discusses the effects of biosolids processing on nitrogen (N) forms, organic N mineralization rates, and ammonium-N retention and explains how to convert N-availability estimates to application rates. Covers biosolids quality factors (trace element concentrations and pathogen levels), the effects of biosolids applications on soil pH and soil quality, applicable regulations, and questions about biosolids safety and application practices. Includes sources for additional information.

PNW 508    Revised February 2015    19 pages
January 2019


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