Mineral levels in mango cultivar Amelie. Methods for the determination of fertilizer needs in north Côte d'Ivoire.
Marchal J., Goguey T., Didier C.
Author Affiliation: IRAF-CIRAD, BP 5035, 34032 Montpellier Cedex, France.
Fruits (Paris) 46 : 477-487
Abstract : Mineral concentrations were measured in various parts of two 5-year-old mango cv. Amélie trees. The tree on the more acid soil with a lower Ca content showed better growth and had lower tissue Ca concentrations and higher Mg and Mn concentrations. The minerals immobilized in trees and fruits during the 5 years of growth were easily replaced by the rates of fertilizer applied. The ratio of minerals in the plants was found to be 10:3:11:2.8 for N, P2O5, K2O and MgO and these, together with the levels of immobilized minerals, can be used to formulate the required fertilizer rates.