The intensive traffic of agricultural machines on soils used for hay production can result in soil quality degradation. The hypothesis evaluated was that systems of intensive hay production cause soil physical degradation. The objective of this study was to quantify the soil physical properties and morphological attributes to recognize and identify the soil physical degradation of a Red Latosol (Typic Haplorthox) cropped with Tifton 85 forage (Cynodon spp) for hay production, in western Paraná state, southern Brazil. A native forest […]

The physical characterization of two typical Coastal Tableland soils (Yellow Latosol-YL and Gray Argisol-GL) of the State of Bahia, Brazil, was carried out in 2001 and the citrus root system in such soils was evaluated in order to determine attributes that best identify the cohesive layer. The first four horizons in each soil were sampled for analysis of particle size distribution, soil bulk density, total porosity, macroporosity, microporosity, and saturated hydraulic conductivity. Soil resistance to penetration and critical humidity of […]

This experiment had the objective of assessing the influence of management practices (disk harrowing, Pueraria phaseoloides and mowing) on the soil’s bulk density and macro- as well as microporosity between the rows of rubber trees (Hevea brasiliensis) planted in 1992 in the highland of the State of São Paulo. A Dark Red Latosol, from Jaboticabal County and a Yellow Red Podzolic from Tabapuã County, São Paulo State were sampled at four depths (0-10, 10-20, 20-30 and 30-40 cm) in the […]