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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)
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author
; and
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
additional info
1-2
id
807570db-9c21-44b6-9c73-534fb9a13f93 (old id 8034269)
date added to LUP
2016-04-01 14:13:51
date last changed
2022-02-27 01:33:08
@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}},
  doi          = {{10.1007/s11104-013-1938-z}},
  volume       = {{375}},
  year         = {{2014}},
}