Bioavailability of phosphorus from composts and struvite in acid soils
ABSTRACT The objective of this study was to assess the type and fractions of phosphorus (P) forms in composts and struvite and how these P forms affect the bioavailability of P in the soil. P fertilization was performed with compost from sewage sludge (CSS), compost from poultry litter (CPL) and str...
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Universidade Federal de Campina Grande
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| author | Carmo Horta |
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| description | ABSTRACT The objective of this study was to assess the type and fractions of phosphorus (P) forms in composts and struvite and how these P forms affect the bioavailability of P in the soil. P fertilization was performed with compost from sewage sludge (CSS), compost from poultry litter (CPL) and struvite (SV) and compared with single superphosphate (SSP). P forms were quantified through a sequential fractionation scheme. The first extraction was performed with H2O, the second with 0.5 M NaHCO3, the third with 0.1 M NaOH and the fourth with 1 M HCl. The release of P over time, after soil P fertilization, was assessed by incubating the fertilizers with a low-P acid soil. P bioavailability was assessed through a micro-pot experiment with the incubated soils in a growth chamber using rye plants (Secale cereale L.). Inorganic P forms in the first two fractions represented ~50% (composts), 32% (SV) and 86% (SSP) of the total P; and in the HCl fraction, ~40% (composts), 26% (SV) and 13% (SSP) of the total P. Despite the variability of the P form fractions in the composts and struvite, the P release and bioavailability were similar among the fertilized treatments. The acidic nature of the soil, which improve solubility of Ca-P forms, and the high efficiency of rye, which favors P uptake, were factors that contributed to these results. |
| format | Article |
| id | doaj-art-fbff8ec592ff4e38b4c20153e70d0766 |
| institution | OA Journals |
| issn | 1807-1929 |
| language | English |
| publisher | Universidade Federal de Campina Grande |
| record_format | Article |
| series | Revista Brasileira de Engenharia Agrícola e Ambiental |
| spelling | doaj-art-fbff8ec592ff4e38b4c20153e70d07662025-08-20T02:25:49ZengUniversidade Federal de Campina GrandeRevista Brasileira de Engenharia Agrícola e Ambiental1807-192921745946410.1590/1807-1929/agriambi.v21n7p459-464S1415-43662017000700459Bioavailability of phosphorus from composts and struvite in acid soilsCarmo HortaABSTRACT The objective of this study was to assess the type and fractions of phosphorus (P) forms in composts and struvite and how these P forms affect the bioavailability of P in the soil. P fertilization was performed with compost from sewage sludge (CSS), compost from poultry litter (CPL) and struvite (SV) and compared with single superphosphate (SSP). P forms were quantified through a sequential fractionation scheme. The first extraction was performed with H2O, the second with 0.5 M NaHCO3, the third with 0.1 M NaOH and the fourth with 1 M HCl. The release of P over time, after soil P fertilization, was assessed by incubating the fertilizers with a low-P acid soil. P bioavailability was assessed through a micro-pot experiment with the incubated soils in a growth chamber using rye plants (Secale cereale L.). Inorganic P forms in the first two fractions represented ~50% (composts), 32% (SV) and 86% (SSP) of the total P; and in the HCl fraction, ~40% (composts), 26% (SV) and 13% (SSP) of the total P. Despite the variability of the P form fractions in the composts and struvite, the P release and bioavailability were similar among the fertilized treatments. The acidic nature of the soil, which improve solubility of Ca-P forms, and the high efficiency of rye, which favors P uptake, were factors that contributed to these results.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000700459&lng=en&tlng=enOlsen Pfracionamento do fósforosustentabilidade do fósforouso eficiente do fósforo |
| spellingShingle | Carmo Horta Bioavailability of phosphorus from composts and struvite in acid soils Revista Brasileira de Engenharia Agrícola e Ambiental Olsen P fracionamento do fósforo sustentabilidade do fósforo uso eficiente do fósforo |
| title | Bioavailability of phosphorus from composts and struvite in acid soils |
| title_full | Bioavailability of phosphorus from composts and struvite in acid soils |
| title_fullStr | Bioavailability of phosphorus from composts and struvite in acid soils |
| title_full_unstemmed | Bioavailability of phosphorus from composts and struvite in acid soils |
| title_short | Bioavailability of phosphorus from composts and struvite in acid soils |
| title_sort | bioavailability of phosphorus from composts and struvite in acid soils |
| topic | Olsen P fracionamento do fósforo sustentabilidade do fósforo uso eficiente do fósforo |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000700459&lng=en&tlng=en |
| work_keys_str_mv | AT carmohorta bioavailabilityofphosphorusfromcompostsandstruviteinacidsoils |