Phosphorus release from phosphate rock and iron phosphate by low-molecular-weight organic acids.

Phosphorus release from phosphate rock and iron phosphate by low-molecular-weight organic acids. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Phosphorus release from phosphate rock and iron phosphate by low-molecular-weight organic acids. Abstract Text:

Ren-kou Xu,Yong-guan Zhu,David Chittleborough,

Low-molecular-weight(LMW) organic acids widely exist in soils, particularly in the rhizosphere. A series of batch experiments were carried out to investigate the phosphorus release from rock phosphate and iron phosphate by low-molecular-weight organic acids. Results showed that citric acid had the highest capacity to solubilize P from both rock and iron phosphate. P solubilization from rock phosphate and iron phosphate resulted in net proton consumption. P release from rock phosphate was positively correlated with the pKa values. P release from iron phosphate was positively correlated with Fe-organic acid stability constants except for aromatic acids, but was notcorrelated with pKa. Increase in the concentrations of organic acids enhanced P solubilization from both rock and iron phosphate almost linearly. Addition of phenolic compounds further increased the P release from iron phosphate. Initial solution pH had much more substantial effect on P release from rock phosphate than from iron phosphate.

Phosphorus release from phosphate rock and iron phosphate by low-molecular-weight organic acids. Publishing Authors By Initials

RK Xu,YG Zhu,D Chittleborough,

For similar complex mixtures: soil research abstracts see: complex mixtures: soil research

PUBMED ID PMID:

MEDLINE DATE:

Phosphorus release from phosphate rock and iron phosphate by low-molecular-weight organic acids. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of environmental sciences (China)

VOLUME: 16

Page Numbers: 5-8

Journal Abbreviation: J Environ Sci (China)

ISSN: 1001-0742

DAY: 8

MONTH: 02

YEAR: 2004

Phosphorus release from phosphate rock and iron phosphate by low-molecular-weight organic acids. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 100967627

Phosphorus release from phosphate rock and iron phosphate by low-molecular-weight organic acids. Keywords Mesh Terms:

KEYWORDS: Soil

MESH TERMS: chemistry

Chemical & Substance for Abstract: Phosphorus release from phosphate rock and iron phosphate by low-molecular-weight organic acids. Information

Substance Name: Phosphorus

Registry Number: 7723-14-0

Grant and Affiliation Information for Phosphorus release from phosphate rock and iron phosphate by low-molecular-weight organic acids.

AFFILIATION: Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.

Country: Netherlands

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: J Environ Sci (China)

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Phosphorus release from phosphate rock and iron phosphate by low-molecular-weight organic acids Related Publications

• Clear effects of soil organic matter chemistry, as determined by NMR spectroscopy, on the sorption of diuron.
• Midinfrared spectroscopy and chemometrics to predict diuron sorption coefficients in soils.
• Phosphorus release from phosphate rock and iron phosphate by low-molecular-weight organic acids.
• Separating the effects of organic matter-mineral interactions and organic matter chemistry on the sorption of diuron and phenanthrene.