| Abstract: | Increased poultry production has contributed to excess nutrient problems in Atlantic Coastal Plain soils due to land application of poultry litter (PL). Aluminum sulfate [alum, Al2(SO4)3?? 14H2O] amendment of PL effectively reduces soluble phosphorus (P) in the PL; however, the effects of these litters when added to acidic, sandy soils are not well understood. The objective of this study was to investigate the efficacy of alum-amended poultry litter in reducing P release from three Delaware Coastal Plain soils: Evesboro loamy sand (Ev; excessively drained, mesic, coated Typic Quartzipsamments), Rumford loamy sand (Ru; well drained, coarse-loamy, siliceous, subactive, thermic Typic Hapludults), and Pocomoke sandy loam (Pm; very poorly drained, coarse-loamy, siliceous, active, thermic Typic Umbraquults). Long-term (25 d) and short-term (24 h) desorption studies were conducted, in addition to chemical extractions and kinetic modeling, to observe the changes that alum-amended versus unamended PL caused in the soils. The Ev, Ru, and Pm soils were incubated with 9 Mg ha-1 of alum-amended or unamended PL. Long-term desorption (25 d) of the incubated material resulted in approximately 13.5% (Ev), 12.7% (Ru), and 13.3% (Pm) reductions in cumulative P desorbed when comparing soil treated with unamended and alum-amended PL. In addition, the P release from the soil treated with alum-amended litter was not significantly different from the control (soil alone). Short-term desorption (24 h) showed 7.3% (Ev), 15.4% (Ru), and 20% (Pm) reductions. The overall implication from this study is that the use of alum as a PL amendment is useful in coarse-textured soils of the Coastal Plain. With increased application of alum-amended PL, more significant decreases may be possible with little or no effect on soil quality. |
| Genre: | Article |
| ProdID: | 70026699 |
| Citation Author: | Staats, K. E.; Arai, Y.; Sparks, D. L. |
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| Citation End Page: | 1911 |
| Citation Issue: | 5 |
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| Citation Language: | English |
| Citation Larger Work Title: | Journal of Environmental Quality |
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| Citation Number Of Pages: | 8 |
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| Citation Search Results Text: | Alum amendment effects on phosphorus release and distribution in poultry litter-amended sandy soils; 2004; Article; Journal; Journal of Environmental Quality; Staats, K. E.; Arai, Y.; Sparks, D. L. |
| Citation Start Page: | 1904 |
| Citation Volume: | 33 |
| Citation Year: | 2004 |
| Type: | citation/reference |
| Text: | Alum amendment effects on phosphorus release and distribution in poultry litter-amended sandy soils; 2004; Article; Journal; Journal of Environmental Quality; Staats, K. E.; Arai, Y.; Sparks, D. L. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Thu, 1 Jan 2004 00:00 -0600 |
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