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Rapid redistribution of P to deeper soil layers in P saturated acid sandy soils

Sara De Bolle, Stefaan De Neve UGent and Georges Hofman UGent (2013) SOIL USE AND MANAGEMENT. 29(suppl. 1). p.76-82
abstract
Problems of excessive soil phosphorus (P) levels as a result of intensive agriculture are found in many regions in Western Europe, USA, Canada and New Zealand. This may lead to phosphorus leaching in soils with low P binding capacity. However, little is known about the changes in P saturation degree (PSD) of such soils with time. Between 1995 and 2005, an intensive inventory of the PSD status of acid sandy soils in Flanders was conducted, the results of which were used to enforce strict rules on P fertilizer inputs on P saturated soils. A new smaller survey on a selection of these fields was undertaken in 2009 and 2010. Comparison of the survey results shows that the mean PSD increased significantly from 46 to 59% over this period. We found evidence for a strong shift of the PSD from the upper to lower layers. The PSD level in the top layer (030cm) generally increased significantly (P<0.01) from 83 to 91%. The average increase in the PSD level of the 3060 and 6090cm layers was even greater, from 33 to 55% and from 14 to 25%, respectively (P<0.01). Current limits on P fertilizer application have not yet resulted in P mining in these soils and will thus need to be further restricted. The very clear increase in PSD movement in deeper layers from both increased Pox, and reduced Feox concentrations show that these high PSD soils pose a very serious and direct threat to groundwater quality.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
high P conditions, Phosphate saturation degree, leaching, P mobilization, PHOSPHORUS ACCUMULATION, AVAILABILITY, MANAGEMENT, FLANDERS, SORPTION, IRON
journal title
SOIL USE AND MANAGEMENT
Soil Use Manage.
volume
29
issue
suppl. 1
pages
76 - 82
Web of Science type
Article
Web of Science id
000315827800009
JCR category
SOIL SCIENCE
JCR impact factor
1.968 (2013)
JCR rank
14/34 (2013)
JCR quartile
2 (2013)
ISSN
0266-0032
DOI
10.1111/j.1475-2743.2012.00426.x
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
3080399
handle
http://hdl.handle.net/1854/LU-3080399
date created
2013-01-03 09:16:43
date last changed
2016-12-19 15:39:39
@article{3080399,
  abstract     = {Problems of excessive soil phosphorus (P) levels as a result of intensive agriculture are found in many regions in Western Europe, USA, Canada and New Zealand. This may lead to phosphorus leaching in soils with low P binding capacity. However, little is known about the changes in P saturation degree (PSD) of such soils with time. Between 1995 and 2005, an intensive inventory of the PSD status of acid sandy soils in Flanders was conducted, the results of which were used to enforce strict rules on P fertilizer inputs on P saturated soils. A new smaller survey on a selection of these fields was undertaken in 2009 and 2010. Comparison of the survey results shows that the mean PSD increased significantly from 46 to 59\% over this period. We found evidence for a strong shift of the PSD from the upper to lower layers. The PSD level in the top layer (030cm) generally increased significantly (P{\textlangle}0.01) from 83 to 91\%. The average increase in the PSD level of the 3060 and 6090cm layers was even greater, from 33 to 55\% and from 14 to 25\%, respectively (P{\textlangle}0.01). Current limits on P fertilizer application have not yet resulted in P mining in these soils and will thus need to be further restricted. The very clear increase in PSD movement in deeper layers from both increased Pox, and reduced Feox concentrations show that these high PSD soils pose a very serious and direct threat to groundwater quality.},
  author       = {De Bolle, Sara and De Neve, Stefaan and Hofman, Georges},
  issn         = {0266-0032},
  journal      = {SOIL USE AND MANAGEMENT},
  keyword      = {high P conditions,Phosphate saturation degree,leaching,P mobilization,PHOSPHORUS ACCUMULATION,AVAILABILITY,MANAGEMENT,FLANDERS,SORPTION,IRON},
  language     = {eng},
  number       = {suppl. 1},
  pages        = {76--82},
  title        = {Rapid redistribution of P to deeper soil layers in P saturated acid sandy soils},
  url          = {http://dx.doi.org/10.1111/j.1475-2743.2012.00426.x},
  volume       = {29},
  year         = {2013},
}

Chicago
De Bolle, Sara, Stefaan De Neve, and Georges Hofman. 2013. “Rapid Redistribution of P to Deeper Soil Layers in P Saturated Acid Sandy Soils.” Soil Use and Management 29 (suppl. 1): 76–82.
APA
De Bolle, S., De Neve, S., & Hofman, G. (2013). Rapid redistribution of P to deeper soil layers in P saturated acid sandy soils. SOIL USE AND MANAGEMENT, 29(suppl. 1), 76–82.
Vancouver
1.
De Bolle S, De Neve S, Hofman G. Rapid redistribution of P to deeper soil layers in P saturated acid sandy soils. SOIL USE AND MANAGEMENT. 2013;29(suppl. 1):76–82.
MLA
De Bolle, Sara, Stefaan De Neve, and Georges Hofman. “Rapid Redistribution of P to Deeper Soil Layers in P Saturated Acid Sandy Soils.” SOIL USE AND MANAGEMENT 29.suppl. 1 (2013): 76–82. Print.