Propriedades físicas de um latossolo vermelho aluminoférrico húmico: um estudo de caso na área experimental da Universidade Federal da Fronteira Sul Campus Erechim

Abstract

Within the soil system, there is a great interrelationship bettwen the physical, chemical and biological properties, these properties are essential and condition the type and the structure of each soil, favoring the development of plants and the generation of food. The study was carried out in the experimental area of the Federal University of Fronteira Sul - Campus Erechim, dividing into fields of study, laboratory analysis and field analysis with the purpose of describing the physical properties of a Humic Aluminoferric Red Latosol. Physical attributes are texture, particle density, soil density, total porosity and relative density which were evaluate in all layers 0 to 10 cm and 10 to 20 cm, while the penetration resistance was evaluated in layers 0 to 5, 5 to 10, 10 to 15 and 15 to 20 cm from the soil. The study variables of texture, particle density and porosity presented results in the set for the soil of clayey texture. Soil density and relative density differed in the study layers, showing higher values in layer 10 to 20 cm and in the same way for resistance to penetration, however higher values were detected in layers 5 to 15 cm, differing in this way the compacted layers within these attributes.