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Cantidades y formas de fósforo en diez suelos altamente temperizados de Puerto Rico
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1978-01)
Amounts and forms of P were determined in sixty soil samples from profiles - one Inceptisol, four Ultisols and five Oxisols of Puerto Rico. Samples of one Oxisol and one Ultisol contain relatively large quantities of total ...