Mineral nutrition of cerrado species I: inorganic chemical composition of Byrsonima coccolobifolia (Sp) kunth, Kielmeyera coriacea (Sp) mart and "shurb" (Polypodiaceae)

Abstract

The word "Cerrado" is used in Brazil in a broad sense. In the wide sense, it is a regional large-scale vegetation type that forms both a vegetational and a floristic province. This large-scale vegetational province posseses a distinctive flora with a few endemic genera and hundreds of endemic species. In the present work, the authors, run analysis of the differents parts of three species collected during one year, from a Regosol (Entisols), situated at the region of Cajuru, São Paulo, Brazil. In this paper, analysis of N, P, K, Ca, Mg, S, B, Cu, Fe, Mn, Mo, Zn and Al are presented. From the data the followings conclusions may be draw: 1 - The year seasons does not affected markedly the dry matter production of the species; 2 - The concentration on macro and micronutrients, with few exceptions, are similars to the cultivated plants; 3 - The lignotuber of "shrub" plant actually accumulate nutrients; 4 - All of the studied species are not aluminium accumulator plants.