@article{fdi:010077359, title = {{P}hosphorus sorption and availability in an andosol after a decade of organic or mineral fertilizer applications : importance of p{H} and organic carbon modifications in soil as compared to phosphorus accumulation}, author = {{N}obile, {C}. {M}. and {B}ravin, {M}. {N}. and {B}ecquer, {T}hierry and {P}aillat, {J}. {M}.}, editor = {}, language = {{ENG}}, abstract = {{T}he effect of organic fertilizers on soil phosphorus ({P}) availability is usually mainly associated with the rate and forms of {P} applied, while they also alter the soil physical-chemical properties, able to change {P} availability. {W}e aimed to highlight the impact of p{H} and organic {C} modifications in soil on the inorganic {P} ({P}i) sorption capacity and availability as compared to the effect of {P} accumulation after mineral or organic fertilizers. {W}e conducted a 10-years-old field experiment on an andosol and compared fields that had been amended with mineral or organic (dairy slurry and manure compost) fertilizers against a nonfertilized control. {W}ater and {O}lsen extractions and {P}i sorption experiments were realized on soils sampled after 6 and 10 years of trial. {W}e also realized an artificial and ex situ alkalization of the control soil to isolate the effect of p{H} on {P}i sorption capacity. {O}rganic fertilizer application increased total {P}, p{H}, and organic {C} in soil. {P}i-{O}lsen increased mainly with soil total {P} (r(2) adj = 0.79), while {P}i-water increased jointly with soil total {P} and p{H} (r(2) adj = 0.85). {T}he {P}i sorption capacity decreased with organic fertilizer application. {A}rtificial and ex situ alkalization of the control soil showed that {P}i sorption capacity decreased with increasing p{H}. {O}ur study demonstrated that, beyond the {P} fertilization rate, the increase in organic {C} content and even more so in p{H} induced by a decade of organic fertilizer applications in soil decreased the {P}i sorption capacity and consequently increased {P}i-water in soil.}, keywords = {{A}dsorption ; {F}ield trial ; {O}rganic residues ; {P}hosphate ; {R}esidual {P} ; {S}olid-solution partitioning coefficient ; {LA} {REUNION}}, booktitle = {}, journal = {{C}hemosphere}, volume = {239}, numero = {}, pages = {art. 124709 [10 p.]}, ISSN = {0045-6535}, year = {2020}, DOI = {10.1016/j.chemosphere.2019.124709}, URL = {https://www.documentation.ird.fr/hor/fdi:010077359}, }