Avaliação e variabilidade espacial de propriedades químicas do solo da "extensão Maria Tereza" perímetro irrigado Senador Nilo Coelho, Petrolina-PE.

Abstract

Soils because they are three-dimensional bodies, formed by the action of various factors. show great variability in their properties, whether chemical or physical. both for any period of time and within a given space analyzed. The agricultural productivity of a given area is influenced. among other factors. for the chemical properties of their soils, which in turn. influence their fertility. Soils can be naturally fertile or become fertile through proper handling. For this, it is necessary to know and quantify the variation of their chemical properties both horizontally and vertically since. the soils by being dynamic and open systems, are constantly changing and therefore constitute heterogeneous bodies. Thus, it can be said that, however homogeneous a particular soil in its appearance. variations can be detected in the same the chemical properties that affect your fertility level (Oliveira, 1998). It reinforces the need to know these variations.