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Influence of soil phosphorus and manure on phosphorus leaching in Swedish topsoils

Svanbäck, Annika and Ulen, Barbro and Etana, Ararso and Bergström, Lars and Kleinman, Peter J.A. and Mattsson, Lennart (2013). Influence of soil phosphorus and manure on phosphorus leaching in Swedish topsoils. Nutrient cycling in agroecosystems. 96:2-3, 133-147
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Official URL: http://dx.doi.org/10.1007/s10705-013-9582-9

Abstract

In Sweden, subsurface transport of phosphorus (P) from agricultural soils represents the primary pathway of concern for surface water quality. However, there are mixed findings linking P in leachate with soil P and limited understanding of the interactive effects of applied P sources and soil test P on P leaching potential. Identifying soils that are susceptible to P leaching when manure is applied is critical to management strategies that reduce P loadings to water bodies. Intact soil columns (20 cm deep) from five long-term fertilization trials across Sweden were used in leaching experiments with simulated rainfall to explore the interactive effects of dairy cow (Bos taurus L.) manure application, soil test P and cropping system. Strong relationships were observed between ammonium-lactate extractable P in soil and dissolved reactive P (DRP) concentrations in leachate, although regression slopes varied across soils. For three soils, application of manure (equal to 21-30 kg P ha-1) to the soil columns significantly increased DRP leaching losses. The increase in DRP concentration was correlated to soil test P, but with wide variations between the three soils. For two soils leachate P concentrations after manure addition were independent of soil P status. Despite variable trends in P leaching across the different soils, P concentrations in leachate were always moderate from soils at fertilization rates equivalent to P removal with harvest. Results clearly stress the importance of long-term P balance to limit P leaching losses from Swedish agricultural soils.

Authors/Creators:Svanbäck, Annika and Ulen, Barbro and Etana, Ararso and Bergström, Lars and Kleinman, Peter J.A. and Mattsson, Lennart
Title:Influence of soil phosphorus and manure on phosphorus leaching in Swedish topsoils
Series/Journal:Nutrient cycling in agroecosystems (1385-1314)
Year of publishing :24 August 2013
Volume:96
Number:2-3
Page range:133-147
Publisher:Springer
ISSN:1385-1314
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Accepted version
Full Text Status:Public
Agris subject categories.:P Natural resources > P30 Soil science and management
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Soil Science
Agrovoc terms:Phosphorus, Leaching, Ammonium, Lactates, Rainfall, Simulation, Fertility, Experiments, Manure
Keywords:phosphorus leaching, ammonium lactate-extractable P, rainfall simulation, long-term fertility experiements, manure management
URN:NBN:urn:nbn:se:slu:epsilon-e-1860
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-1860
ID Code:11121
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Soil and Environment
(S) > Dept. of Soil and Environment
External funders:Stiftelsen Lantbruksforskning
Deposited By: Annika Svanbäck
Deposited On:14 Apr 2014 13:16
Metadata Last Modified:02 Dec 2014 11:05

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