Macronutrients extrated and exported by guaraná fruits (Paullinia cupana var. sorbilis) in Amazonas state, Brazil

Authors

  • Antonio Maria G. de Castro ACAR-Amazonas
  • José Renato Sarruge E.S.A. Luiz de Queiroz; Departamento de Química
  • Orlando Campelo Ribeiro ACAR-Amazonas

DOI:

https://doi.org/10.1590/S0071-12761975000100053

Abstract

Fruits of Guaraná (Paullinia cupana var. sorbilis) were chemically analized for N, P, K, Ca, Mg e S, with the purpose to determine the amount of macronutrient uptaked and exported by "guaraná" fruits. Four composed samples of fruits were colected from two groves fertilized and two unfertilized. Nitrogen and K was the most absorbed elements by guaraná fruits. N and P was the most exported elements. The return to the soil of fruit pulp is recomended.

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Published

1975-01-01

Issue

Vol. 32 (1975)

Section

naodefinida

How to Cite

Castro, A. M. G. de, Sarruge, J. R., & Ribeiro, O. C. (1975). Macronutrients extrated and exported by guaraná fruits (Paullinia cupana var. sorbilis) in Amazonas state, Brazil . Anais Da Escola Superior De Agricultura Luiz De Queiroz, 32, 609-614. https://doi.org/10.1590/S0071-12761975000100053