CHEMICAL CHARACTERIZATION OF DIFFERENT SYSTEMS OF LAND USE

Abstract

The form of management that is used in Amazonian soils determines its use in the future, so the chemical is critical, as is a parameter to indicate the fertility of these soils. The aim of this work was the chemical characterization of different land uses in the state of Pará were collected fifteen samples simple to form three composite samples with three replicates for each area in lowland soils, poultry and poultry in transition to floodplain with a wide range variation of chemical characteristics. Analyses were carried out in the department of soils in Universidade Federal Rural da Amazônia (UFRA). The following analyzes were performed: The pH, calcium, exchangeable magnesium, exchangeable aluminum and moisture content. Regarding pH, showed marked all soil acidity. As for humidity, lowland soil that was presented greater. For Ca2+ and Mg2+, the lowland soils that were also presented higher values??.   KEYWORDS: fertility, soil chemistry, soil management.