Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Manure harvesting practices : effects on waste characteristics and runoff /
Author Hansen, Ralph W. ; Harper, Judson M. ; Stone, Marvin L. ; Ward, Gerald M. ; Kidd., Ricky A.
Other Authors
Author Title of a Work
Hansen, Ralph W.
CORP Author United States. Environmental Protection Agency. Office of Research and Development.; Colorado. State University, Fort Collins.
Publisher Environmental Protection Agency, Office of Research and Development, Robert S. Kerr Environmental Research Laboratory ; For sale by the National Technical Information Service,
Year Published 1976
Report Number EPA 600/2-76-292; EPA-R-803378
Stock Number 22161
OCLC Number 02916916
ISBN pbk.
Subjects Manures--Analysis. ; Animal waste--Research. ; Runoff--Research.
Additional Subjects Fertilizers and manures--Analysis ; Animal waste--Research ; Runoff--Research ; Agricultural wastes ; Water pollution abatement ; Solid waste disposal ; Management ; Beef cattle ; Quality ; Concentration(Composition) ; Nitrogen ; Phosphorus ; Potassium ; Decomposition ; Fertilizers ; Circulation ; Waste disposal ; Industrial waste treatment ; Materials recovery ; Manure ; Feedlot wastes
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-2-76-292 Headquarters Library/Washington,DC 01/12/2011
EJBD  EPA 600-2-76-292 c.1 Headquarters Library/Washington,DC 11/04/2013
EMBD  EPA/600/2-76/292 NRMRL/GWERD Library/Ada,OK 02/17/1995
ERAD  EPA 600/2-76-292 Region 9 Library/San Francisco,CA 09/17/2012
ESAD  EPA 600-2-76-292 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-265 569 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation viii, 104 p. : ill., graphs, chart ; 28 cm.
To develop a basis for better manure harvesting management practices a combined field and laboratory study was conducted. The effect of management practices on manure qualities and runoff pollution potential were compared on three feedlot pens with fully surfaced, partially surfaced and unsurfaced conditions. Average N, P and K elements were present in a ratio of approximately 4:1:2 providing 46 lbs N, 11 lbs P and 27 lbs K per ton of dry manure. For recycling purposes ash is an important fraction of manure and can be reduced by use of hard surfaced pens. Ash content averaged 36.2%. Fiber and lignin in manure are directly related to the fiber content of the ration. The effect of decomposition of the manure was greatest on its viscosity and squeezability. Bulk density and particle size remained the same. Surfaced feedlot areas have a larger percentage of precipitation in runoff with higher concentrations of pollutants. Increased animal densities on surfaced pens will offset the difference with non-surfaced pens and can result in a lower peranimal pollution potential from runoff.
Prepared by Colorado State University, Fort Collins, Colo., under grant no. R-803378. Includes bibliographies and appendices.