Article (Scientific journals)
Relationships between the P status of surface and deep horizons of agricultural soils under various cropping systems and for different soil types: a case study in Belgium
Renneson, Malorie; Dufey, J.; Legrain, Xavier et al.
2013In Soil Use and Management, 29 (S1), p. 103-113
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Keywords :
Phosphorus; soil; parent material; land use; P forms; Belgium
Abstract :
[en] Application of phosphorus (P) fertilizers to agricultural soils should be based on sound knowledge about soil P reserves, availability and lability to optimize conditions for plant uptake while limiting P transport to surface waters. This study investigated relationships between parent material (PM), land use and P fractions in agricultural soils at a regional scale. Surface and deep (100–120 cm) soil samples were collected from 120 agricultural sites (240 total samples) and analysed for three P forms (inorganic, organic and available) as well as for additional key properties. Land uses within the study area were continuous cropland, permanent pasture and temporary grassland. The area covered the 12 most common parent types in Wallonia. Mean total P contents were 904 and 401 mg/kg in surface and deep samples, respectively, with a 33% coefficient of variation for both horizons. The organic P fraction represented, on average, 30% of total P, while available P corresponded to 9% of total P. The influence of PM was apparent in both the surface and deep soil samples, while land use influenced only surface properties. The pattern in total P content relative to land use was pasture ≥ cropland ≥ temporary grassland. Correlation analyses highlighted significant relationships between edaphic parameters viz Alox, Feox, CEC, TOC, pH and P content, the main soil parameter being Alox which determines P sorption capacity. An enrichment factor was used to distinguish between geogenic sources and human activities in terms of topsoil P content.
Disciplines :
Agriculture & agronomy
Environmental sciences & ecology
Author, co-author :
Renneson, Malorie ;  Université de Liège - ULiège > Sciences et technologie de l'environnement > Systèmes Sol-Eau
Dufey, J.
Legrain, Xavier  ;  Université de Liège - ULiège > Sciences et technologie de l'environnement > Systèmes Sol-Eau
Genot, V.
Bock, Laurent ;  Université de Liège - ULiège > Sciences et technologie de l'environnement > Systèmes Sol-Eau
Colinet, Gilles  ;  Université de Liège - ULiège > Sciences et technologie de l'environnement > Systèmes Sol-Eau
Language :
English
Title :
Relationships between the P status of surface and deep horizons of agricultural soils under various cropping systems and for different soil types: a case study in Belgium
Publication date :
March 2013
Journal title :
Soil Use and Management
ISSN :
0266-0032
eISSN :
1475-2743
Publisher :
Blackwell Publishing Ltd
Special issue title :
Phosphorus in Soil and Its Transfer to Water
Volume :
29
Issue :
S1
Pages :
103-113
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture [BE]
Available on ORBi :
since 07 May 2013

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