Phosphorus leaching through intact soil cores as influenced by type and duration of manure application

Elizabeth H. Brock, Quirine M. Ketterings, Peter J A Kleinman

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Leaching of phosphorus (P) in manure-amended soils has received increased attention as a significant source of non-point source P pollution. Intact soil cores were collected from fields on a farm in Southern New York to test the effects of long-term dairy or poultry manure application on P leaching. Nine fields were selected (four poultry, four dairy, and one unamended) to represent a broad range of P saturation levels (5.3 to 62.4%) in the topsoil (0-7.5 cm). Water was applied weekly at a rate matching a 1-year return period storm for the study area (230 mm h-1). Dissolved reactive P (DRP) losses in leachate from all soil cores ranged from 0.007 to 0.055 kg P ha-1, except in two fields with long-term histories of dairy and poultry manure application, where losses averaged 0.21 and 0.45 kg P ha-1, respectively. Hydrographs of the field with the dairy manure history suggested preferential flow as an explanation of leachate P enrichment. In the poultry manure amended field, high levels of soil P saturation throughout the profile suggested subsoil P desorption as a factor controlling leachate P. Surface application of dairy manure to the soil cores (167 kg total P ha-1) increased the mean leachate DRP concentration from 1.5 to 10.5 fold. After five leaching events spanning 22 days, DRP concentrations remained 2.0 to 13.4 fold above pre-manure application levels. This study points to saturation of P in subsoils by long-term manure application as a key concern to P loss in leachate and highlights the role of annual manure additions on subsurface P loss potential.

Original languageEnglish (US)
Pages (from-to)269-281
Number of pages13
JournalNutrient Cycling in Agroecosystems
Volume77
Issue number3
DOIs
StatePublished - Mar 1 2007

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leachates
dairy manure
animal manures
manure
leaching
phosphorus
poultry manure
duration
leachate
poultry
soil
subsoil
saturation
preferential flow
desorption
topsoil
long term effects
dairies
pollution
fold

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Soil Science

Cite this

Brock, Elizabeth H. ; Ketterings, Quirine M. ; Kleinman, Peter J A. / Phosphorus leaching through intact soil cores as influenced by type and duration of manure application. In: Nutrient Cycling in Agroecosystems. 2007 ; Vol. 77, No. 3. pp. 269-281.
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abstract = "Leaching of phosphorus (P) in manure-amended soils has received increased attention as a significant source of non-point source P pollution. Intact soil cores were collected from fields on a farm in Southern New York to test the effects of long-term dairy or poultry manure application on P leaching. Nine fields were selected (four poultry, four dairy, and one unamended) to represent a broad range of P saturation levels (5.3 to 62.4{\%}) in the topsoil (0-7.5 cm). Water was applied weekly at a rate matching a 1-year return period storm for the study area (230 mm h-1). Dissolved reactive P (DRP) losses in leachate from all soil cores ranged from 0.007 to 0.055 kg P ha-1, except in two fields with long-term histories of dairy and poultry manure application, where losses averaged 0.21 and 0.45 kg P ha-1, respectively. Hydrographs of the field with the dairy manure history suggested preferential flow as an explanation of leachate P enrichment. In the poultry manure amended field, high levels of soil P saturation throughout the profile suggested subsoil P desorption as a factor controlling leachate P. Surface application of dairy manure to the soil cores (167 kg total P ha-1) increased the mean leachate DRP concentration from 1.5 to 10.5 fold. After five leaching events spanning 22 days, DRP concentrations remained 2.0 to 13.4 fold above pre-manure application levels. This study points to saturation of P in subsoils by long-term manure application as a key concern to P loss in leachate and highlights the role of annual manure additions on subsurface P loss potential.",
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Phosphorus leaching through intact soil cores as influenced by type and duration of manure application. / Brock, Elizabeth H.; Ketterings, Quirine M.; Kleinman, Peter J A.

In: Nutrient Cycling in Agroecosystems, Vol. 77, No. 3, 01.03.2007, p. 269-281.

Research output: Contribution to journalArticle

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AB - Leaching of phosphorus (P) in manure-amended soils has received increased attention as a significant source of non-point source P pollution. Intact soil cores were collected from fields on a farm in Southern New York to test the effects of long-term dairy or poultry manure application on P leaching. Nine fields were selected (four poultry, four dairy, and one unamended) to represent a broad range of P saturation levels (5.3 to 62.4%) in the topsoil (0-7.5 cm). Water was applied weekly at a rate matching a 1-year return period storm for the study area (230 mm h-1). Dissolved reactive P (DRP) losses in leachate from all soil cores ranged from 0.007 to 0.055 kg P ha-1, except in two fields with long-term histories of dairy and poultry manure application, where losses averaged 0.21 and 0.45 kg P ha-1, respectively. Hydrographs of the field with the dairy manure history suggested preferential flow as an explanation of leachate P enrichment. In the poultry manure amended field, high levels of soil P saturation throughout the profile suggested subsoil P desorption as a factor controlling leachate P. Surface application of dairy manure to the soil cores (167 kg total P ha-1) increased the mean leachate DRP concentration from 1.5 to 10.5 fold. After five leaching events spanning 22 days, DRP concentrations remained 2.0 to 13.4 fold above pre-manure application levels. This study points to saturation of P in subsoils by long-term manure application as a key concern to P loss in leachate and highlights the role of annual manure additions on subsurface P loss potential.

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