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University of Wyoming Extension

 

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	Long-Term Land Application of Biosolids: Soil and Plant Trace Element Composition
	Publication #: B-1062 Date Published: 04/01/1998 Publication Author(s): Carla Johnson George F. Vance

Description:
Because biosolid disposal is becoming a global concern, past traditional methods have been outlawed or are becoming less popular with the public. Disposing biosolids in landfills, incineration, and ocean dumping have been stopped; however, land application is a popular alternative. "Land application of biosolids can supply necessary plant nutrients, improve soil water-holding capacity, and increase beneficial microbial activity," say authors Johnson and Vance. In their 10-page bulletin, Long-term land application of biosolids: Soil and plant trace element composition, the two discuss a five-year study of biosolid application on a test site in Evanston, Wyoming. They determine if the different grass species grown on these soils have accumulated trace elements such as Cd, Cu, Ni, Pb, Se, and/or Zn.

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