Rainfall intensity and phosphorus source effects on phosphorus transport in surface runoff from soil trays.
作者： Francirose Shigaki , Andrew Sharpley , Luis Ignacio Prochnow
DOI: 10.1016/J.SCITOTENV.2006.10.048
关键词: Phosphorite 、 Lolium multiflorum 、 Phosphorus 、 Manure 、 Loam 、 Environmental science 、 Surface runoff 、 Agronomy 、 Hydrology 、 Eutrophication 、 Soil water
摘要: Abstract Phosphorus runoff from agricultural fields amended with mineral fertilizers and manures has been linked to freshwater eutrophication. A rainfall simulation study was conducted evaluate the effects of different intensities P sources differing in water soluble (WSP) concentration on transport soil trays packed a Berks loam grassed annual ryegrass (Lolium multiflorum Lam.). Triple superphosphate (TSP; 79% WSP), low-grade super single phosphate (LGSSP; 50% North Carolina rock (NCRP; 0.5% WSP) swine manure (SM; 70% were broadcast (100 kg total ha− 1) applied at 25, 50 75 mm h− 1 1, 7, 21, 56 days after source application. The dissolved reactive (DRP), particulate (PP), (TP) significantly (P
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