Phosphorus leaching from agricultural soils of the Delmarva Peninsula, USA

Peter J.A. Kleinman, Clinton Church, Lou S. Saporito, Josh M. McGrath, Mark S. Reiter, Arthur L. Allen, Shawn Tingle, Greg D. Binford, Kun Han, Brad C. Joern

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Leaching of phosphorus (P) mobilizes edaphic and applied sources of P and is a primary pathway of concern in agricultural soils of the Delmarva Peninsula, which defines the eastern boundary of the eutrophic Chesapeake Bay. We evaluated P leaching before and after poultry litter application from intact soil columns (30 cm diameter × 50 cm depth) obtained from low- and high-P members of four dominant Delmarva Peninsula soils. Surface soil textures ranged from fine sand to silt loam, and Mehlich-3 soil P ranged from 64 to 628 mg kg-1. Irrigation of soil columns before litter application pointed to surface soil P controls on dissolved P in leachate (with soil P sorption saturation providing a stronger relationship than Mehlich-3 P); however, strong relationships between P in the subsoil (45-50 cm) and leachate P concentrations were also observed (r2 = 0.61-0.73). After poultry litter application (4.5 Mg ha-1), leachate P concentrations and loads increased significantly for the finest-textured soils, consistent with observations that wellstructured soils have the greatest propensity to transmit applied P. Phosphorus derived from poultry litter appeared to contribute 41 and 76% of total P loss in leachate from the two soils with the finest textures. Results point to soil P, including P sorption saturation, as a sound metric of P loss potential in leachate when manure is not an acute source of P but highlight the need to factor in macropore transport potential to predict leaching losses from applied P sources.

Original languageEnglish (US)
Pages (from-to)524-534
Number of pages11
JournalJournal of Environmental Quality
Volume44
Issue number2
DOIs
StatePublished - Jan 1 2015

Fingerprint

agricultural soil
Leaching
Phosphorus
leaching
phosphorus
Soils
leachate
litter
poultry
soil
Poultry
soil column
sorption
saturation
macropore
Sorption
soil texture
loam
subsoil
Textures

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Water Science and Technology
  • Waste Management and Disposal
  • Pollution
  • Management, Monitoring, Policy and Law

Cite this

Kleinman, P. J. A., Church, C., Saporito, L. S., McGrath, J. M., Reiter, M. S., Allen, A. L., ... Joern, B. C. (2015). Phosphorus leaching from agricultural soils of the Delmarva Peninsula, USA. Journal of Environmental Quality, 44(2), 524-534. https://doi.org/10.2134/jeq2014.07.0301
Kleinman, Peter J.A. ; Church, Clinton ; Saporito, Lou S. ; McGrath, Josh M. ; Reiter, Mark S. ; Allen, Arthur L. ; Tingle, Shawn ; Binford, Greg D. ; Han, Kun ; Joern, Brad C. / Phosphorus leaching from agricultural soils of the Delmarva Peninsula, USA. In: Journal of Environmental Quality. 2015 ; Vol. 44, No. 2. pp. 524-534.
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Kleinman, PJA, Church, C, Saporito, LS, McGrath, JM, Reiter, MS, Allen, AL, Tingle, S, Binford, GD, Han, K & Joern, BC 2015, 'Phosphorus leaching from agricultural soils of the Delmarva Peninsula, USA', Journal of Environmental Quality, vol. 44, no. 2, pp. 524-534. https://doi.org/10.2134/jeq2014.07.0301

Phosphorus leaching from agricultural soils of the Delmarva Peninsula, USA. / Kleinman, Peter J.A.; Church, Clinton; Saporito, Lou S.; McGrath, Josh M.; Reiter, Mark S.; Allen, Arthur L.; Tingle, Shawn; Binford, Greg D.; Han, Kun; Joern, Brad C.

In: Journal of Environmental Quality, Vol. 44, No. 2, 01.01.2015, p. 524-534.

Research output: Contribution to journalArticle

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T1 - Phosphorus leaching from agricultural soils of the Delmarva Peninsula, USA

AU - Kleinman, Peter J.A.

AU - Church, Clinton

AU - Saporito, Lou S.

AU - McGrath, Josh M.

AU - Reiter, Mark S.

AU - Allen, Arthur L.

AU - Tingle, Shawn

AU - Binford, Greg D.

AU - Han, Kun

AU - Joern, Brad C.

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N2 - Leaching of phosphorus (P) mobilizes edaphic and applied sources of P and is a primary pathway of concern in agricultural soils of the Delmarva Peninsula, which defines the eastern boundary of the eutrophic Chesapeake Bay. We evaluated P leaching before and after poultry litter application from intact soil columns (30 cm diameter × 50 cm depth) obtained from low- and high-P members of four dominant Delmarva Peninsula soils. Surface soil textures ranged from fine sand to silt loam, and Mehlich-3 soil P ranged from 64 to 628 mg kg-1. Irrigation of soil columns before litter application pointed to surface soil P controls on dissolved P in leachate (with soil P sorption saturation providing a stronger relationship than Mehlich-3 P); however, strong relationships between P in the subsoil (45-50 cm) and leachate P concentrations were also observed (r2 = 0.61-0.73). After poultry litter application (4.5 Mg ha-1), leachate P concentrations and loads increased significantly for the finest-textured soils, consistent with observations that wellstructured soils have the greatest propensity to transmit applied P. Phosphorus derived from poultry litter appeared to contribute 41 and 76% of total P loss in leachate from the two soils with the finest textures. Results point to soil P, including P sorption saturation, as a sound metric of P loss potential in leachate when manure is not an acute source of P but highlight the need to factor in macropore transport potential to predict leaching losses from applied P sources.

AB - Leaching of phosphorus (P) mobilizes edaphic and applied sources of P and is a primary pathway of concern in agricultural soils of the Delmarva Peninsula, which defines the eastern boundary of the eutrophic Chesapeake Bay. We evaluated P leaching before and after poultry litter application from intact soil columns (30 cm diameter × 50 cm depth) obtained from low- and high-P members of four dominant Delmarva Peninsula soils. Surface soil textures ranged from fine sand to silt loam, and Mehlich-3 soil P ranged from 64 to 628 mg kg-1. Irrigation of soil columns before litter application pointed to surface soil P controls on dissolved P in leachate (with soil P sorption saturation providing a stronger relationship than Mehlich-3 P); however, strong relationships between P in the subsoil (45-50 cm) and leachate P concentrations were also observed (r2 = 0.61-0.73). After poultry litter application (4.5 Mg ha-1), leachate P concentrations and loads increased significantly for the finest-textured soils, consistent with observations that wellstructured soils have the greatest propensity to transmit applied P. Phosphorus derived from poultry litter appeared to contribute 41 and 76% of total P loss in leachate from the two soils with the finest textures. Results point to soil P, including P sorption saturation, as a sound metric of P loss potential in leachate when manure is not an acute source of P but highlight the need to factor in macropore transport potential to predict leaching losses from applied P sources.

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Kleinman PJA, Church C, Saporito LS, McGrath JM, Reiter MS, Allen AL et al. Phosphorus leaching from agricultural soils of the Delmarva Peninsula, USA. Journal of Environmental Quality. 2015 Jan 1;44(2):524-534. https://doi.org/10.2134/jeq2014.07.0301