Contribución al estudio del fósforo en suelos ácidos del noroeste de España. II. Relaciones entre valores representativos del P del suelo, obtenidos por incubación o agitación con solución 0.01 M de CaCl subíndice 2, y su absorción por trébol violeta
P- adsorption uptake by red clover grown in an acid brown soil heavily fertilized 6 years before sampling, was correlated with soil P estimated after the procedure followed to obtain their adsorption isotherm, with the value X/logC proposed by Bache and Williams, and with the p extracted by shaking soil samples during 1 h with 0.01 M CaC12 solution. The high determination coefficient (R2 = 0.9847) between P uptake and P extracted with 0.01 M CaC12, suggest the possibility of using this extractant to test soil P status A diagram to estimate fertilizer needs is showed.
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| Main Authors: | , |
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| Format: | biblioteca |
| Language: | spa |
| Published: |
San José, Costa Rica Instituto Interamericano de Cooperación para la Agricultura (IICA)
(Oct
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| Subjects: | FOSFORO, SUELO ACIDO, ABSORCION, AGITACION, RELACIONES PLANTA SUELO, ABONOS FOSFATADOS, ESPANA, |
| Online Access: | https://repositorio.catie.ac.cr/handle/11554/12202 |
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| Summary: | P- adsorption uptake by red clover grown in an acid brown soil heavily fertilized 6 years before sampling, was correlated with soil P estimated after the procedure followed to obtain their adsorption isotherm, with the value X/logC proposed by Bache and Williams, and with the p extracted by shaking soil samples during 1 h with 0.01 M CaC12 solution. The high determination coefficient (R2 = 0.9847) between P uptake and P extracted with 0.01 M CaC12, suggest the possibility of using this extractant to test soil P status A diagram to estimate fertilizer needs is showed. |
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