{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,27]],"date-time":"2026-08-27T15:57:30Z","timestamp":1787846250211,"version":"build-2784847793"},"reference-count":58,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2009,1,1]],"date-time":"2009-01-01T00:00:00Z","timestamp":1230768000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"Municipal Washington Council of Governments"},{"name":"Institute of Soil and Environmental Quality at the University of Delaware"}],"content-domain":{"domain":["acsess.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Env Quality"],"published-print":{"date-parts":[[2009,1]]},"abstract":"<jats:p>The solubility of P in biosolids and manures has been shown to influence the potential for dissolved P losses in runoff and leachate when these materials are land applied. As a result, some Mid\u2010Atlantic US states have developed P source coefficients (PSCs) to account for differences in P solubility between fertilizers, manures, and biosolids in P risk assessment tools. The reliability of these PSCs has not been evaluated under anoxic conditions, where environmental changes may affect the P solubility of biosolids or manures. The objective of this study was to assess the effects of anoxic conditions on the release of P from a range of Mid\u2010Atlantic soils amended with manures and biosolids. The concentration of dissolved P released into solution (0.01 mol L<jats:sup>\u22121<\/jats:sup> NaCl) from the Pamunkey, Berks, and Manor soils was significantly lower under reducing conditions than under oxidized conditions (median \u0394<jats:italic>P<\/jats:italic> = \u22120.70, \u22120.49, and \u22120.07 mg L<jats:sup>\u22121<\/jats:sup>, respectively; all significant at the 0.001 probability level). There was no significant P source effect on dissolved P released into solution after anoxic incubation of soils. Calculated solubility diagrams and increases in oxalate\u2010extractable Fe and P sorption index under reducing conditions for all soils suggest the precipitation of (i) an Fe(II)\u2010oxide that increased the P sorption capacity of the soils or (ii) an Fe(II)\u2010phosphate that decreased the solubility of P. We propose that current PSCs do not need alteration to account for differences in P solubility of organic sources under reducing conditions under relatively static conditions (e.g., seasonable high water table, periodically submerged soils, stagnant drainage ditches).<\/jats:p>","DOI":"10.2134\/jeq2007.0660","type":"journal-article","created":{"date-parts":[[2009,1,13]],"date-time":"2009-01-13T21:37:31Z","timestamp":1231882651000},"page":"309-318","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":23,"title":["Evaluating Phosphorus Release from Biosolids and Manure\u2010Amended Soils under Anoxic Conditions"],"prefix":"10.1002","volume":"38","author":[{"given":"Amy L.","family":"Shober","sequence":"first","affiliation":[{"name":"Soil and Water Science Dep. Univ. Florida Gulf Coast REC Wimauma FL 33598"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J. 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