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Potential phosphorus leaching from sandy topsoils with different fertilizer histories before and after application of pig slurry

Liu, Jian and Aronsson, Helena and Ulen, Barbro and Bergström, Lars (2012). Potential phosphorus leaching from sandy topsoils with different fertilizer histories before and after application of pig slurry. Soil use and management. 28:4, 457-467
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Official URL: http://dx.doi.org/10.1111/j.1475-2743.2012.00442.x

Abstract

This study investigated the effects of historical long-term and recent single applications of pig slurry on P leaching from intact columns of two sandy topsoils (Mellby and Böslid). The soils had similar physical properties, but different soil P status (ammonium lactate-extractable P; P-AL) and degree of P saturation (DPS-AL). Mellby had P-AL of 220-280 mg kg-1 and DPS-AL of 32-42%, which was higher than for Böslid (P-AL 140 mg kg-1 and DPS 21%). The study investigated the effects since 1983 of four treatments with different fertilizer histories, in summary high (HighSlurryMellby) and low (LowSlurryMellby) rates of pig slurry and mineral P (MinMellby) applications at Mellby and mineral P application at Böslid (MinBöslid). The columns were irrigated in the laboratory five times before and five times after a single application of pig slurry (22 kg P ha-1). Concentrations of dissolved reactive P (DRP), dissolved organic P and total-P (TP) in leachate and loads were significantly higher (p <0.005) from the treatments at Mellby than those at Böslid. TP concentrations followed the trend: HighSlurryMellby (0.57-0.59 mg L-1) > MinMellby (0.41-0.49 mg L-1) > LowSlurryMellby (0.31-0.36 mg L-1) > MinBöslid (0.14-0.15 mg L-1), both before and after the single slurry application. DRP concentrations in leachate were positively correlated with DPS-AL values in the topsoil (R2=0.95, p<0.0001), and increased with greater DPS-AL values after the single slurry application (R2=0.79, p<0.0001). Thus, DPS-AL can be an appropriate indicator of P leaching risk from sandy soils. Moreover, the build-up of soil P due to long-term repeated manure applications seems to be more important for potential P losses than a single manure application.

Authors/Creators:Liu, Jian and Aronsson, Helena and Ulen, Barbro and Bergström, Lars
Title:Potential phosphorus leaching from sandy topsoils with different fertilizer histories before and after application of pig slurry
Series/Journal:Soil use and management (1475-2743)
Year of publishing :2012
Volume:28
Number:4
Page range:457-467
Number of Pages:11
Publisher:Wiley-Blackwell
ISSN:1475-2743
Language:English
Additional Information:Online Open Article
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published 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 > Soil Science
Keywords:Manure management , Pig slurry, Phosphorus leaching, Intact topsoil columns, Soil phosphorus status, Degree of phosphorus saturation
URN:NBN:urn:nbn:se:slu:epsilon-e-1502
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-1502
Additional ID:
Type of IDID
Web of Science (WoS)000312483000004
DOI10.1111/j.1475-2743.2012.00442.x
ID Code:10483
Department:(NL, NJ) > Dept. of Soil and Environment
(S) > Dept. of Soil and Environment
Deposited By: SLUpub Connector
Deposited On:17 Jun 2013 14:04
Metadata Last Modified:05 Dec 2014 00:02

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