Advanced

The fate of phosphorus of ash-rich biochars in a soil-plant system

Wang, Tao LU ; Camps-Arbestain, Marta and Hedley, Mike (2014) In Plant and Soil 375(1-2). p.61-74
Abstract
The objectives were to investigate (i) the forms and release pattern of P from an ash-rich biochar-amended sandy soil; (ii) the transformation of biochar P in a soil-plant system.



Several methodologies (a bioassay test, soluble P extractions, a sequential P fractionation and successive P extractions via resin strips) were used to study the bioavailability and transformation of P in a sandy soil fertilised with either conventional P fertilisers [Ca(H2PO4)(2) (CaP) and Sechura phosphate rock (SPR)] or biochars produced from cattle manure (MAe) and alum-treated biosolids (BSe) at four temperatures (250, 350, 450, and 550 A degrees C).



Biochar P mainly contributed to increase soil resin-extractable P-... (More)
The objectives were to investigate (i) the forms and release pattern of P from an ash-rich biochar-amended sandy soil; (ii) the transformation of biochar P in a soil-plant system.



Several methodologies (a bioassay test, soluble P extractions, a sequential P fractionation and successive P extractions via resin strips) were used to study the bioavailability and transformation of P in a sandy soil fertilised with either conventional P fertilisers [Ca(H2PO4)(2) (CaP) and Sechura phosphate rock (SPR)] or biochars produced from cattle manure (MAe) and alum-treated biosolids (BSe) at four temperatures (250, 350, 450, and 550 A degrees C).



Biochar P mainly contributed to increase soil resin-extractable P- and inorganic NaOH-extractable P-fractions, and thus to plant available P. The decrease in P concentrations of those fractions was caused by the uptake of P by plants rather than their transformations into more stable forms. P release rates diminished following the order: CaP > MAe > BSe > SPR, which indicates a decline in P availability from these P sources.



Phosphorus-rich biochar can be used as a slow-release fertiliser. It is necessary to determine available P (either soil or fertiliser tests) in biochars prior to its application to soil, so that dose, frequency and timing of application are correctly established. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Plant and Soil
volume
375
issue
1-2
pages
61 - 74
publisher
Springer
external identifiers
  • scopus:84893768134
ISSN
0032-079X
DOI
10.1007/s11104-013-1938-z
language
English
LU publication?
yes
id
807570db-9c21-44b6-9c73-534fb9a13f93 (old id 8034269)
date added to LUP
2015-10-02 15:04:04
date last changed
2017-10-22 04:17:10
@article{807570db-9c21-44b6-9c73-534fb9a13f93,
  abstract     = {The objectives were to investigate (i) the forms and release pattern of P from an ash-rich biochar-amended sandy soil; (ii) the transformation of biochar P in a soil-plant system. <br/><br>
<br/><br>
Several methodologies (a bioassay test, soluble P extractions, a sequential P fractionation and successive P extractions via resin strips) were used to study the bioavailability and transformation of P in a sandy soil fertilised with either conventional P fertilisers [Ca(H2PO4)(2) (CaP) and Sechura phosphate rock (SPR)] or biochars produced from cattle manure (MAe) and alum-treated biosolids (BSe) at four temperatures (250, 350, 450, and 550 A degrees C). <br/><br>
<br/><br>
Biochar P mainly contributed to increase soil resin-extractable P- and inorganic NaOH-extractable P-fractions, and thus to plant available P. The decrease in P concentrations of those fractions was caused by the uptake of P by plants rather than their transformations into more stable forms. P release rates diminished following the order: CaP &gt; MAe &gt; BSe &gt; SPR, which indicates a decline in P availability from these P sources. <br/><br>
<br/><br>
Phosphorus-rich biochar can be used as a slow-release fertiliser. It is necessary to determine available P (either soil or fertiliser tests) in biochars prior to its application to soil, so that dose, frequency and timing of application are correctly established.},
  author       = {Wang, Tao and Camps-Arbestain, Marta and Hedley, Mike},
  issn         = {0032-079X},
  language     = {eng},
  number       = {1-2},
  pages        = {61--74},
  publisher    = {Springer},
  series       = {Plant and Soil},
  title        = {The fate of phosphorus of ash-rich biochars in a soil-plant system},
  url          = {http://dx.doi.org/10.1007/s11104-013-1938-z},
  volume       = {375},
  year         = {2014},
}