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Rapchan, V.M. and Malavolta, E. 1976. Studies on the mineral nutrition and fertilization of the passion fruit plant (Passiflora edulis F. flavicarpa): II. placement of fertilizer phosphorus . Anais da Escola Superior de Agricultura Luiz de Queiroz. 33, (Jan. 1976), 455–458. DOI:https://doi.org/10.1590/S0071-12761976000100041.