{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,12]],"date-time":"2026-09-12T19:05:27Z","timestamp":1789239927786,"version":"build-2803163510"},"reference-count":32,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2005,1,1]],"date-time":"2005-01-01T00:00:00Z","timestamp":1104537600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"Florida Agricultural Experiment Station"},{"name":"USDA National Research Initiative"}],"content-domain":{"domain":["acsess.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Env Quality"],"published-print":{"date-parts":[[2005,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>Dairy manure application to soils can result in phosphorus (P)\u2010related degradation of water quality. The P in these manure\u2010impacted soils can be labile even years after abandonment and under conditions normally associated with high P stability. Failure of P to stabilize with time compounds the environmental consequences of dairy manure disposal, especially on sandy soils. The objectives of this study were to compare chemical characteristics of active and abandoned dairy manure\u2013impacted soils and minimally impacted soils and to assess the continuous release of P in relation to sparingly soluble salts using repeated water extractions, X\u2010ray diffraction, and speciation modeling of column leachates. Soil samples from Ap horizons were collected from nine highly manure\u2010impacted (total P &gt; 1000 mg P kg<jats:sup>\u22121<\/jats:sup> soil) areas on four active and five abandoned dairies and four minimally impacted soils (total P &lt; 200 mg P kg<jats:sup>\u22121<\/jats:sup> soil). Soil extracts were analyzed for electrical conductivity (EC), soluble reactive phosphorus (SRP), Ca, Mg, Na, and K. The EC of the soil solutions decreased as active dairy &gt; abandoned dairy &gt; minimally impacted soils. Release of Mg and SRP were significantly correlated (<jats:italic>r<\/jats:italic><jats:sup>2<\/jats:sup> = 0.68) and did not decline after abandonment; Ca release was not correlated with SRP (<jats:italic>r<\/jats:italic><jats:sup>2<\/jats:sup> = 0.01), and declined significantly (<jats:italic>p<\/jats:italic> &lt; 0.05) after abandonment. Speciation data from column leachates suggested that Mg\u2010P phases and\/or the most soluble Ca\u2010P phases could control P solution activities. An implication of this study is that P stabilization via crystallization of calcium phosphates (even at near\u2010neutral pH) may be preempted by Mg\u2010P association. Thus, mechanisms to minimize P release may require P\u2010retaining soil amendments or management of animal rations to eliminate Mg\u2010P formation.<\/jats:p>","DOI":"10.2134\/jeq2005.0184","type":"journal-article","created":{"date-parts":[[2010,6,14]],"date-time":"2010-06-14T02:50:11Z","timestamp":1276483811000},"page":"184-191","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":39,"title":["Associated Release of Magnesium and Phosphorus from Active and Abandoned Dairy Soils"],"prefix":"10.1002","volume":"34","author":[{"given":"M. S.","family":"Josan","sequence":"first","affiliation":[{"name":"Soil and Water Science Department, 106 Newell Hall, P.O. Box 110510 University of Florida, Institute of Food and Agricultural Sciences Gainesville FL 32611\u20100510"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"V. D.","family":"Nair","sequence":"additional","affiliation":[{"name":"Soil and Water Science Department, 106 Newell Hall, P.O. Box 110510 University of Florida, Institute of Food and Agricultural Sciences Gainesville FL 32611\u20100510"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"W. G.","family":"Harris","sequence":"additional","affiliation":[{"name":"Soil and Water Science Department, 106 Newell Hall, P.O. Box 110510 University of Florida, Institute of Food and Agricultural Sciences Gainesville FL 32611\u20100510"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D.","family":"Herrera","sequence":"additional","affiliation":[{"name":"Soil and Water Science Department, 106 Newell Hall, P.O. Box 110510 University of Florida, Institute of Food and Agricultural Sciences Gainesville FL 32611\u20100510"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2005,1]]},"reference":[{"key":"e_1_2_7_2_1","first-page":"5","volume-title":"Standard methods for the examination of water and waste waters","author":"American Public Health Association","year":"1992"},{"key":"e_1_2_7_3_1","doi-asserted-by":"crossref","first-page":"329","DOI":"10.1016\/0043-1354(76)90175-5","article-title":"An ignition method for determination of total phosphorus in lake sediments","volume":"10","author":"Anderson J.M.","year":"1974","journal-title":"Water Res."},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1097\/00010694-198706000-00002"},{"key":"e_1_2_7_5_1","first-page":"137","article-title":"Distribution of residual soil phosphorus along transects for three dairies in Okeechobee Co., Florida","volume":"50","author":"Burgoa B.","year":"1991","journal-title":"Soil Crop. 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