{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,7]],"date-time":"2026-02-07T22:13:17Z","timestamp":1770502397516,"version":"3.49.0"},"reference-count":37,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2005,11,1]],"date-time":"2005-11-01T00:00:00Z","timestamp":1130803200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"USDA CSREES"},{"name":"Agricultural Experiment Station","award":["#VT-PS-01003"],"award-info":[{"award-number":["#VT-PS-01003"]}]}],"content-domain":{"domain":["acsess.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Env Quality"],"published-print":{"date-parts":[[2005,11]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>There is considerable concern about pollution of surface waters with P. Although most of the research has focused on inorganic P in surface runoff, it has recently become possible to easily follow the fate of soluble organic P forms in soils and waters. Two experiments were performed to compare the relative mobility and soil fixation affinity of orthophosphate monoesters, orthophosphate diesters, and soluble inorganic P. We used three P substrates, 4\u2010methylumbelliferyl phosphate (MUP), deoxyribonucleic acid (DNA), and KH<jats:sub>2<\/jats:sub>PO<jats:sub>4<\/jats:sub> in (i) a soil column experiment and (ii) a soil P adsorption test tube experiment. Shortly after columns were prepared, approximately two pore volumes of 0.005 <jats:italic>M<\/jats:italic> CaCl<jats:sub>2<\/jats:sub> were passed through 25 cm length columns containing 10 cm of loamy sand amended with approximately 10 mg P as MUP, DNA, or KH<jats:sub>2<\/jats:sub>PO<jats:sub>4<\/jats:sub> above 15 cm of nonamended loamy sand. The total net quantity of 757.8 \u03bcg P 2L<jats:sup>\u22121<\/jats:sup> of orthophosphate diesters in the leachate from the DNA columns exceeded the net quantity of orthophosphate monoesters in leachate from the MUP columns (4.6 \u03bcg P 2L<jats:sup>\u22121<\/jats:sup>) and soluble inorganic P from the KH<jats:sub>2<\/jats:sub>PO<jats:sub>4<\/jats:sub> columns (34.0 \u03bcg P 2L<jats:sup>\u22121<\/jats:sup>). Adsorption of soluble organic and inorganic P in the test tube experiment yielded similar results: DNA, containing orthophosphate diesters, had a relatively low affinity for soils. In both experiments, high concentrations of other P compounds were identified in samples treated with organic P substrates, suggesting enzymatic hydrolysis by native soil phosphatase enzymes. These findings indicate that repeated application of organic forms of P could lead to significant leaching of P to ground water.<\/jats:p>","DOI":"10.2134\/jeq2005.0025","type":"journal-article","created":{"date-parts":[[2005,11,7]],"date-time":"2005-11-07T20:33:12Z","timestamp":1131395592000},"page":"2228-2233","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":30,"title":["Relative Movement and Soil Fixation of Soluble Organic and Inorganic Phosphorus"],"prefix":"10.1002","volume":"34","author":[{"given":"Brandon H.","family":"Anderson","sequence":"first","affiliation":[{"name":"Department of Plant and Soil Science, 105 Carrigan Dr. Univ. of Vermont Burlington VT 05405"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Frederick R.","family":"Magdoff","sequence":"additional","affiliation":[{"name":"Department of Plant and Soil Science, 105 Carrigan Dr. Univ. of Vermont Burlington VT 05405"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2005,11]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2389.1974.tb01102.x"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.2136\/sssaj1967.03615995003100040018x"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1097\/00010694-199908000-00005"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.2134\/jeq1997.00472425002600020006x"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.2134\/jeq1984.00472425001300010020x"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2389.1990.tb00043.x"},{"key":"e_1_2_7_8_1","first-page":"59","article-title":"Inorganic pyrophosphate activity of soils","volume":"10","author":"Dick W.A.","year":"1978","journal-title":"Soil Biol. 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