{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,4]],"date-time":"2026-10-04T10:35:00Z","timestamp":1791110100344,"version":"4.1.0"},"reference-count":56,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2006,11,1]],"date-time":"2006-11-01T00:00:00Z","timestamp":1162339200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"U.S. Department of Energy, Division of Materials Science and Division of Chemical Services"}],"content-domain":{"domain":["acsess.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Env Quality"],"published-print":{"date-parts":[[2006,11]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>Identification of the chemical P species in biosolids or manures will improve our understanding of the long\u2010term potential for P loss when these materials are land applied. The objectives of this study were to determine the P species in dairy manures, poultry litters, and biosolids using X\u2010ray absorption near\u2010edge structure (XANES) spectroscopy and to determine if chemical fractionation techniques can provide useful information when interpreted based on the results of more definitive P speciation studies. Our XANES fitting results indicated that the predominant forms of P in organic P sources included hydroxylapatite, PO<jats:sub>4<\/jats:sub> sorbed to Al hydroxides, and phytic acid in lime\u2010stabilized biosolids and manures; hydroxylapatite, PO<jats:sub>4<\/jats:sub> sorbed on ferrihydrite, and phytic acid in lime\u2010 and Fe\u2010treated biosolids; and PO<jats:sub>4<\/jats:sub> sorbed on ferrihydrite, hydroxylapatite, \u03b2\u2010tricalcium phosphate (\u03b2\u2010TCP), and often PO<jats:sub>4<\/jats:sub> sorbed to Al hydroxides in Fe\u2010treated and digested biosolids. Strong relationships existed between the proportions of XANES PO<jats:sub>4<\/jats:sub> sorbed to Al hydroxides and NH<jats:sub>4<\/jats:sub>Cl\u2010 + NH<jats:sub>4<\/jats:sub>F\u2010extractable P, XANES PO<jats:sub>4<\/jats:sub> sorbed to ferrihydrite + phytic acid and NaOH\u2010extractable P, and XANES hydroxylapatite + \u03b2\u2010TCP and dithionite\u2013citrate\u2013bicarbonate (DCB)\u2010 + H<jats:sub>2<\/jats:sub>SO<jats:sub>4<\/jats:sub>\u2010extractable P (<jats:italic>r<\/jats:italic><jats:sup>2<\/jats:sup> = 0.67 [<jats:italic>P<\/jats:italic> = 0.01], 0.78 [<jats:italic>P<\/jats:italic> = 0.01], and 0.89 [<jats:italic>P<\/jats:italic> = 0.001], respectively). Our XANES fitting results can be used to make predictions about long\u2010term solubility of P when biosolids and manures are land applied. Fractionation techniques indicate that there are differences in the forms of P in these materials but should be interpreted based on P speciation data obtained using more advanced analytical tools.<\/jats:p>","DOI":"10.2134\/jeq2006.0100","type":"journal-article","created":{"date-parts":[[2006,10,27]],"date-time":"2006-10-27T21:12:00Z","timestamp":1161983520000},"page":"1983-1993","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":113,"title":["Characterization of Phosphorus Species in Biosolids and Manures Using XANES Spectroscopy"],"prefix":"10.1002","volume":"35","author":[{"given":"Amy L.","family":"Shober","sequence":"first","affiliation":[{"name":"Department of Soil and Water Science, Gulf Coast Research and Education Center University of Florida Wimauma FL 33594"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dean L.","family":"Hesterberg","sequence":"additional","affiliation":[{"name":"Department of Soil Science North Carolina State University Raleigh NC 27695"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J. Thomas","family":"Sims","sequence":"additional","affiliation":[{"name":"Department of Plant and Soil Sciences University of Delaware Newark DE 19716"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sheila","family":"Gardner","sequence":"additional","affiliation":[{"name":"Department of Plant and Soil Sciences University of Delaware Newark DE 19716"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2006,11]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.2134\/jeq2004.1062"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1006\/jcis.2001.7773"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.2134\/jeq2003.1809"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.2175\/106143004X141645"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2389.1958.tb01903.x"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.3168\/jds.S0022-0302(04)73579-1"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/0022-0248(83)90303-2"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/0022-0248(90)90079-Z"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/0022-0248(91)90019-2"},{"key":"e_1_2_7_11_1","first-page":"501","article-title":"Laboratory procedures for characterizing manure phosphorus","volume":"29","author":"Dou Z.","year":"2000","journal-title":"J. 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