caa a22 4500 463208714 CHVBK 20180405153133.0 cr unu---uuuuu 170326e20070101xx s 000 0 eng 10.1007/s10705-006-9047-5 doi (NATIONALLICENCE)springer-10.1007/s10705-006-9047-5 Transformations of soil and manure phosphorus after surface application of manure to field plots [Elektronische Daten] [P. Vadas, R. Harmel, P. Kleinman] Transfer of phosphorus (P) from surface-applied manures to runoff is an important source of pollution, but few studies have closely monitored P dynamics in manure, soil, and runoff through time. We monitored manure and soil P over 14 to 17months in field experiments in Texas and Pennsylvania, USA following dairy and poultry manure surface application. Manure was applied to porous fabric that enabled discrete sampling of both manure and underlying soil. Manure mass consistently decreased while manure total P was essentially constant through time. Manure water extractable P decreased rapidly for the first two months, likely due to rainfall leaching, but then maintained stable concentrations thereafter, with other forms of manure P gradually transformed to water extractable forms. Soil P from the upper 2cm rapidly increased after manure application in association with manure leaching by rain. After 2 to 3months, soil P peaked and either remained constant or gradually declined. Similar trends occurred at 2-5 and 5-10cm, but with lesser magnitudes. At 10-15cm, soil P changed little over time. In Pennsylvania, naturally occurring runoff from 0.7-m×1.3-m plots without and without manure was also monitored. Runoff dissolved P concentrations were greatest for the first event after manure application and decreased steadily through time, but remained greater than P concentrations from control plots, and were always well related to manure water extractable P. This study reveals that management practices for water quality protection must consider the potential for manure P transformations to contribute dissolved P to runoff long after manure is applied. Springer Science+Business Media B.V., 2006 Animal manure nationallicence Field plots nationallicence Phosphorus nationallicence Surface runoff nationallicence Soil labile phosphorus nationallicence P : phosphorus nationallicence WEPI : inorganic manure water extractable P nationallicence WEPO : organic manure water extractable P nationallicence TP : total manure P nationallicence DRPI : dissolved inorganic P in runoff nationallicence DRPO : dissolved organic P in runoff nationallicence Vadas P. USDA-ARS, U.S. Dairy Forage Research Center, 1925 Linden Drive West, 53706, Madison, WI, USA aut Harmel R. USDA-ARS, Grassland, Soil, and Water Research Laboratory, 808 East Blackland Rd., 76502, Temple, TX, USA aut Kleinman P. USDA-ARS, Pasture Systems and Watershed Management Research Unit, Building 3702, Curtin Rd., 16802, University Park, PA, USA aut Nutrient Cycling in Agroecosystems Springer Netherlands 77/1(2007-01-01), 83-99 1385-1314 77:1<83 2007 77 10705 https://doi.org/10.1007/s10705-006-9047-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10705-006-9047-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Vadas P. USDA-ARS, U.S. Dairy Forage Research Center, 1925 Linden Drive West, 53706, Madison, WI, USA aut NATIONALLICENCE 700 1- Harmel R. USDA-ARS, Grassland, Soil, and Water Research Laboratory, 808 East Blackland Rd., 76502, Temple, TX, USA aut NATIONALLICENCE 700 1- Kleinman P. USDA-ARS, Pasture Systems and Watershed Management Research Unit, Building 3702, Curtin Rd., 16802, University Park, PA, USA aut NATIONALLICENCE 773 0- Nutrient Cycling in Agroecosystems Springer Netherlands 77/1(2007-01-01), 83-99 1385-1314 77:1<83 2007 77 10705 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer