Effects of soil properties on phosphorus fractions in subtropical soils of Iran

Loading...
Thumbnail Image
File version
Author(s)
Adhami, E
Owliaie, HR
Molavi, R
Rezaei Rashti, M
Esfandbod, M
Griffith University Author(s)
Primary Supervisor
Other Supervisors
Editor(s)
Ebrahim Adhami ,Hamid Reza Owliaie, Roya Molavi, Mehran Rezaei Rashti, Maryam Esfandbod
Date
2013
Size
780475 bytes
File type(s)
application/pdf
Location
License
http://creativecommons.org/licenses/by-nc/3.0/
Abstract

The distribution of inorganic P fractions and their relationships with soil properties was studied in 17 slightly acidic to slightly alkaline soils (pH range 5.37 to 7.61). The soils were selected from agricultural fields of the north of Iran. Inorganic P fractionation included successive extraction with NaOH (NaOH-P), citrate-bicarbonate (CB-P), citrate two times (C1- and C2-P), Citrate-ascorbate (CAs-P), citrate-dithionite-bicarbonate (CBD-P), sodium-acetate buffer (NaOAc-P) and HCl (HCl-P). Results showed that the abundance of P fractions was in the order NaOH-P (35.67 mg kg-1) , NaOAc-P (39 mg kg-1), C2-P (49 mg kg-1), CBD-P (102 mg kg-1), CB-P (136 mg kg-1), CAs-P (156 mg kg-1), C1-P (197 mg kg-1), HCl-P (417 mg kg-1). Among soil properties, pH had almost a linear negative relationship with NaOH-P and a linear positive relationship with HCl-P; in addition, it significantly affected C1-P, CAs-P and NaOAc-P. Oxalate extractable Fe showed a significant positive correlation with NaOH-P and CAs-P, while calcium carbonate equivalent (CCE) had a significant positive correlation with NaOAc-P and HCl-P.

Journal Title
Journal of soil science and plant nutrition
Conference Title
Book Title
Edition
Volume
13
Issue
1
Thesis Type
Degree Program
School
Publisher link
Patent number
Funder(s)
Grant identifier(s)
Rights Statement
Rights Statement
© The Author(s) 2013. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0) License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.
Item Access Status
Note
Access the data
Related item(s)
Subject
Soil sciences
Soil chemistry and soil carbon sequestration (excl. carbon sequestration science)
Agriculture, land and farm management
Agricultural systems analysis and modelling
Crop and pasture production
Persistent link to this record
Citation
Collections