Analysis of phosphorus by 31PNMR in Oxisols under agroforestry and conventional coffee systems in Brazil
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Oene Oenema | B. H. Janssen | T. Kuyper | O. Oenema | Thomas W. Kuyper | P. Meer | Bert H. Janssen | Irene M. Cardoso | Pieter Van der Meer | I. M. Cardoso
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