Soil and surface runoff phosphorus relationships for five typical USA midwest soils

Journal of Environmental Quality
Brett L AllenM Camara

Abstract

Excessively high soil P can increase P loss with surface runoff. This study used indoor rainfall simulations to characterize soil and runoff P relationships for five Midwest soils (Argiudoll, Calciaquaoll, Hapludalf, and two Hapludolls). Topsoil (15-cm depth, 241-289 g clay kg(-1) and pH 6.0-8.0) was incubated with five NH4H2PO4 rates (0-600 mg P kg(-1)) for 30 d. Total soil P (TPS) and soil-test P (STP) measured with Bray-P1 (BP), Mehlich-3 (M3P), Olsen (OP), Fe-oxide-impregnated paper (FeP), and water (WP) tests were 370 to 1360, 3 to 530, 10 to 675, 4 to 640, 7 to 507, and 2 to 568 mg P kg(-1), respectively. Degree of soil P saturation (DPS) was estimated by indices based on P sorption index (PSI) and STP (DPSSTP) and P, Fe, and Al extracted by ammonium oxalate (DPSox) or Mehlich-3 (DPSM3). Soil was packed to 1.1 g cm(-3) bulk density in triplicate boxes set at 4% slope. Surface runoff was collected during 75 min of 6.5 cm h(-1) rain. Runoff bioavailable P (BAP) and dissolved reactive P (DRP) increased linearly with increased P rate, STP, DPSox, and DPSM3 but curvilinearly with DPSSTP. Correlations between DRP or BAP and soil tests or saturation indices across soils were greatest (r > or = 0.95) for FeP, OP, and WP and poore...Continue Reading

References

Jun 13, 2001·Journal of Environmental Quality·D T WestermannC W Robbins
Oct 2, 2001·Journal of Environmental Quality·L G BundyJ M Powell
Jan 29, 2003·Journal of Environmental Quality·Todd W Andraski, Larry G Bundy
Oct 11, 2003·Journal of Environmental Quality·Todd W AndraskiKenneth C Kilian

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Citations

Aug 26, 2009·Environmental Science and Pollution Research International·Rosemarie PöthigGerhard Furrer
Sep 12, 2012·Environmental Science & Technology·Irem DaloğluDonald Scavia
Feb 1, 2015·Archives of Toxicology·Victoria LinaresJosé L Domingo
Jan 8, 2008·Journal of Environmental Quality·Brett L Allen, Antonio P Mallarino
Nov 1, 2013·Journal of Environmental Quality·Mark S ReiterJohn A Lory
Jun 5, 2018·Journal of Environmental Quality·Mingwei YuanDaniel Schaefer
Oct 18, 2007·Journal of Environmental Quality·Brian E HaggardKristofor R Brye
Apr 15, 2011·Journal of Environmental Quality·Sandra C AgudeloGary M Pierzynski
Jan 3, 2018·Journal of Environmental Quality·David B BakerJohn P Crumrine

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