PMID: 11931462Apr 5, 2002Paper

Phosphorus leaching from biosolids-amended sandy soils

Journal of Environmental Quality
H A ElliottScott R Brinton

Abstract

Increasing emphasis on phosphorus (P)-based nutrient management underscores the need to understand P behavior in soils amended with biosolids and manures. Laboratory and greenhouse column studies characterized P forms and leachability of eight biosolids products, chicken manure (CM), and commercial fertilizer (triple superphosphate, TSP). Bahiagrass (Paspalum notatum Flugge) was grown for 4 mo on two acid, P-deficient Florida sands, representing both moderate (Candler series: hyperthermic, uncoated Typic Quartzipsamments) and very low (Immokalee series: sandy, siliceous, hyperthermic Arenic Alaquods) P-sorbing capacities. Amendments were applied at 56 and 224 kg P(T) ha(-1), simulating P-based and N-based nutrient loadings, respectively. Column leachate P was dominantly inorganic and lower for biosolids P sources than TSP. For Candler soil, only TSP at the high P rate exhibited P leaching statistically greater (alpha = 0.05) than control (soil-only) columns. For the high P rate and low P-sorbing Immokalee soil, TSP and CM leached 21 and 3.0% of applied P, respectively. Leachate P for six biosolids was <1.0% of applied P and not statistically different from controls. Largo biosolids, generated from a biological P removal process...Continue Reading

Citations

Jun 1, 2005·Journal of Colloid and Interface Science·Konstantinos C MakrisHassan El-Shall
Jul 10, 2014·Environmental Monitoring and Assessment·Somayeh Moharami, Mohsen Jalali
Feb 20, 2016·Environmental Monitoring and Assessment·Virinder SidhuRupali Datta
Sep 18, 2007·Journal of Environmental Management·Olawale O OladejiScott R Brinton
Jan 18, 2011·Journal of Hazardous Materials·Md M RahmanChangSix Ra
Nov 4, 2008·The Science of the Total Environment·S Agyin-Birikorang, G A O'Connor

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