Bioavailability of Phosphorus on Iron (Oxy)hydroxide Not Affected by Soil Amendment–Derived Organic Matter

Numerous studies have demonstrated that synthetic organic acids can affect phosphorus (P) solubility in soils and uptake by plants. However, few studies have examined the effects of dissolved organic matter (DOM) derived from carbon (C)-rich soil amendments on P bioavailability. This study investiga...

Full description

Bibliographic Details
Main Authors: Andrew J. Chase, M. Susan Erich, Tsutomu Ohno
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Agricultural & Environmental Letters
Online Access:https://dl.sciencesocieties.org/publications/ael/articles/3/1/170042
id doaj-e50a2d2d0a3a439a8ffc784d3d2d9c97
record_format Article
spelling doaj-e50a2d2d0a3a439a8ffc784d3d2d9c972020-11-25T01:19:22ZengWileyAgricultural & Environmental Letters2471-96252018-01-013110.2134/ael2017.12.0042Bioavailability of Phosphorus on Iron (Oxy)hydroxide Not Affected by Soil Amendment–Derived Organic MatterAndrew J. ChaseM. Susan ErichTsutomu OhnoNumerous studies have demonstrated that synthetic organic acids can affect phosphorus (P) solubility in soils and uptake by plants. However, few studies have examined the effects of dissolved organic matter (DOM) derived from carbon (C)-rich soil amendments on P bioavailability. This study investigated how DOM extracted from crop residues, animal manures, and compost affected P adsorption onto iron (oxy)hydroxide (FeOOH) and its bioavailability using a plant bioassay. The results showed that pre-adsorbed DOM significantly decreased P adsorption by 19%. However, the pre-adsorbed DOM treatment did not significantly affect P uptake by tomato ( L. ‘German Johnson’) plants in a 5-wk agar-culture bioassay. The results of these laboratory-based studies suggest that the initial DOM leached from C-rich soil amendments such as crop residues and animal manures is unlikely to affect soil P bioavailability because orthophosphate forms strong inner-sphere bonds to the FeOOH and this DOM fraction does not.https://dl.sciencesocieties.org/publications/ael/articles/3/1/170042
collection DOAJ
language English
format Article
sources DOAJ
author Andrew J. Chase
M. Susan Erich
Tsutomu Ohno
spellingShingle Andrew J. Chase
M. Susan Erich
Tsutomu Ohno
Bioavailability of Phosphorus on Iron (Oxy)hydroxide Not Affected by Soil Amendment–Derived Organic Matter
Agricultural & Environmental Letters
author_facet Andrew J. Chase
M. Susan Erich
Tsutomu Ohno
author_sort Andrew J. Chase
title Bioavailability of Phosphorus on Iron (Oxy)hydroxide Not Affected by Soil Amendment–Derived Organic Matter
title_short Bioavailability of Phosphorus on Iron (Oxy)hydroxide Not Affected by Soil Amendment–Derived Organic Matter
title_full Bioavailability of Phosphorus on Iron (Oxy)hydroxide Not Affected by Soil Amendment–Derived Organic Matter
title_fullStr Bioavailability of Phosphorus on Iron (Oxy)hydroxide Not Affected by Soil Amendment–Derived Organic Matter
title_full_unstemmed Bioavailability of Phosphorus on Iron (Oxy)hydroxide Not Affected by Soil Amendment–Derived Organic Matter
title_sort bioavailability of phosphorus on iron (oxy)hydroxide not affected by soil amendment–derived organic matter
publisher Wiley
series Agricultural & Environmental Letters
issn 2471-9625
publishDate 2018-01-01
description Numerous studies have demonstrated that synthetic organic acids can affect phosphorus (P) solubility in soils and uptake by plants. However, few studies have examined the effects of dissolved organic matter (DOM) derived from carbon (C)-rich soil amendments on P bioavailability. This study investigated how DOM extracted from crop residues, animal manures, and compost affected P adsorption onto iron (oxy)hydroxide (FeOOH) and its bioavailability using a plant bioassay. The results showed that pre-adsorbed DOM significantly decreased P adsorption by 19%. However, the pre-adsorbed DOM treatment did not significantly affect P uptake by tomato ( L. ‘German Johnson’) plants in a 5-wk agar-culture bioassay. The results of these laboratory-based studies suggest that the initial DOM leached from C-rich soil amendments such as crop residues and animal manures is unlikely to affect soil P bioavailability because orthophosphate forms strong inner-sphere bonds to the FeOOH and this DOM fraction does not.
url https://dl.sciencesocieties.org/publications/ael/articles/3/1/170042
work_keys_str_mv AT andrewjchase bioavailabilityofphosphorusonironoxyhydroxidenotaffectedbysoilamendmentderivedorganicmatter
AT msusanerich bioavailabilityofphosphorusonironoxyhydroxidenotaffectedbysoilamendmentderivedorganicmatter
AT tsutomuohno bioavailabilityofphosphorusonironoxyhydroxidenotaffectedbysoilamendmentderivedorganicmatter
_version_ 1725138649816760320