Final published version
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Opportunities for mobilizing recalcitrant phosphorus from agricultural soils
T2 - a review
AU - Blackburn, Daniel Menezes
AU - Giles, Courtney D.
AU - Darch, Tegan
AU - George, Timothy S.
AU - Blackwell, Martin S. A.
AU - Stutter, Marc
AU - Shand, Charles
AU - Lumsdon, David
AU - Cooper, Patricia
AU - Wendler, Renate
AU - Brown, Lawrie
AU - Almeida, Danilo S.
AU - Wearing, Catherine Louise
AU - Zhang, Hao
AU - Haygarth, Philip Matthew
PY - 2018/6
Y1 - 2018/6
N2 - BackgroundPhosphorus (P) fertilizer is usually applied in excess of plant requirement and accumulates in soils due to its strong adsorption, rapid precipitation and immobilisation into unavailable forms including organic moieties. As soils are complex and diverse chemical, biochemical and biological systems, strategies to access recalcitrant soil P are often inefficient, case specific and inconsistently applicable in different soils. Finding a near-universal or at least widely applicable solution to the inefficiency in agricultural P use by plants is an important unsolved problem that has been under investigation for more than half a century.ScopeIn this paper we critically review the strategies proposed for the remobilization of recalcitrant soil phosphorus for crops and pastures worldwide. We have additionally performed a meta-analysis of available soil 31P–NMR data to establish the potential agronomic value of different stored P forms in agricultural soils.ConclusionsSoil inorganic P stocks accounted on average for 1006 ± 115 kg ha−1 (57 ± 7%), while the monoester P pool accounted for 587 ± 32 kg ha−1 (33 ± 2%), indicating the huge potential for the future agronomic use of the soil legacy P. New impact driven research is needed in order to create solutions for the sustainable management of soil P stocks.
AB - BackgroundPhosphorus (P) fertilizer is usually applied in excess of plant requirement and accumulates in soils due to its strong adsorption, rapid precipitation and immobilisation into unavailable forms including organic moieties. As soils are complex and diverse chemical, biochemical and biological systems, strategies to access recalcitrant soil P are often inefficient, case specific and inconsistently applicable in different soils. Finding a near-universal or at least widely applicable solution to the inefficiency in agricultural P use by plants is an important unsolved problem that has been under investigation for more than half a century.ScopeIn this paper we critically review the strategies proposed for the remobilization of recalcitrant soil phosphorus for crops and pastures worldwide. We have additionally performed a meta-analysis of available soil 31P–NMR data to establish the potential agronomic value of different stored P forms in agricultural soils.ConclusionsSoil inorganic P stocks accounted on average for 1006 ± 115 kg ha−1 (57 ± 7%), while the monoester P pool accounted for 587 ± 32 kg ha−1 (33 ± 2%), indicating the huge potential for the future agronomic use of the soil legacy P. New impact driven research is needed in order to create solutions for the sustainable management of soil P stocks.
KW - Phosphorus
KW - Organic phosphorus
KW - Soil
KW - Crops
KW - Fertilizer
KW - Plant nutrition
U2 - 10.1007/s11104-017-3362-2
DO - 10.1007/s11104-017-3362-2
M3 - Journal article
VL - 427
SP - 5
EP - 16
JO - Plant and Soil
JF - Plant and Soil
SN - 0032-079X
IS - 1-2
ER -