Changes in P pools over three months in two soils amended with legume residues

To assess the longer term effects of soil properties and residue addition on soil P pool concentrations, we added residues from three different legumes to two soils and measured the concentration of soil P pools over three months. The size of various P pools was assessed by sequential P fractionatio...

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Autores principales:	Alamgir,M, Marschner,P
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2016
Materias:	C/P ratio legume residue P fractionation soil properties
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162016000100006
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spelling	oai:scielo:S0718-951620160001000062016-05-05Changes in P pools over three months in two soils amended with legume residuesAlamgir,MMarschner,P C/P ratio legume residue P fractionation soil properties To assess the longer term effects of soil properties and residue addition on soil P pool concentrations, we added residues from three different legumes to two soils and measured the concentration of soil P pools over three months. The size of various P pools was assessed by sequential P fractionation on days 0, 14, 28, 56, 70 and 98. Compared to the unamended control, addition of faba bean and chickpea residues increased the concentrations of resin P, microbial P, NaHCO3-Pi temporarily whereas amendment with white lupin residues had little effect on P pool concentrations. The decrease in NaHCO3-Po and NaOH-Po towards the end of the experiment coincided with an increase in NaOH-Pi in Mt. Bold soil and of HCl-Pi in Monarto soil. These temporal changes were more pronounced in soils amended with faba bean and chickpea residues than in the unamended soil or after addition of white lupin residues. The principal component analysis (PCA) plot showed that the P pool concentrations on days 0 and 98 were quite similar and differed from those on days 28, 56 and 70 suggesting clear temporal patterns. The results of this study show that the concentration of various P pools is strongly affected by soil properties such as pH and organic matter content and further modulated by the properties of the residues.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.16 n.1 20162016-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162016000100006en10.4067/S0718-95162016005000006
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	C/P ratio legume residue P fractionation soil properties
spellingShingle	C/P ratio legume residue P fractionation soil properties Alamgir,M Marschner,P Changes in P pools over three months in two soils amended with legume residues
description	To assess the longer term effects of soil properties and residue addition on soil P pool concentrations, we added residues from three different legumes to two soils and measured the concentration of soil P pools over three months. The size of various P pools was assessed by sequential P fractionation on days 0, 14, 28, 56, 70 and 98. Compared to the unamended control, addition of faba bean and chickpea residues increased the concentrations of resin P, microbial P, NaHCO3-Pi temporarily whereas amendment with white lupin residues had little effect on P pool concentrations. The decrease in NaHCO3-Po and NaOH-Po towards the end of the experiment coincided with an increase in NaOH-Pi in Mt. Bold soil and of HCl-Pi in Monarto soil. These temporal changes were more pronounced in soils amended with faba bean and chickpea residues than in the unamended soil or after addition of white lupin residues. The principal component analysis (PCA) plot showed that the P pool concentrations on days 0 and 98 were quite similar and differed from those on days 28, 56 and 70 suggesting clear temporal patterns. The results of this study show that the concentration of various P pools is strongly affected by soil properties such as pH and organic matter content and further modulated by the properties of the residues.
author	Alamgir,M Marschner,P
author_facet	Alamgir,M Marschner,P
author_sort	Alamgir,M
title	Changes in P pools over three months in two soils amended with legume residues
title_short	Changes in P pools over three months in two soils amended with legume residues
title_full	Changes in P pools over three months in two soils amended with legume residues
title_fullStr	Changes in P pools over three months in two soils amended with legume residues
title_full_unstemmed	Changes in P pools over three months in two soils amended with legume residues
title_sort	changes in p pools over three months in two soils amended with legume residues
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162016000100006
work_keys_str_mv	AT alamgirm changesinppoolsoverthreemonthsintwosoilsamendedwithlegumeresidues AT marschnerp changesinppoolsoverthreemonthsintwosoilsamendedwithlegumeresidues
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Changes in P pools over three months in two soils amended with legume residues

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