%0 Journal Article
%T Homogeneidade da qualidade f¨ªsica do solo nas entrelinhas de um pomar de laranjeira com sistemas de manejo da vegeta£¿£¿o permanente
%A Fidalski
%A Jonez
%A Tormena
%A C¨¢ssio Antonio
%J Revista Brasileira de Ci¨ºncia do Solo
%D 2007
%I Sociedade Brasileira de Ci¨ºncia do Solo
%R 10.1590/S0100-06832007000400004
%X the soil physical quality is fundamental for the sustainability of citrus production. the objective of this study was to evaluate the homogeneity of soil physical quality in-between the rows of an orange orchard with groundcover management systems. the study was performed in an experimental field with groundcover systems in-between the rows of 'p¨ºra orange' on 'rangpur' lime rootstock on a typic paleudult, in 1993, in alto paran¨¢, in the northwestern region of the state of paran¨¢, brazil. an experimental design of random blocks was used, with tree replications. the following groundcover treatments between the rows were studied: bahiagrass (paspalum notatum), perennial peanut (arachis pintoi), and the usual management in which weeds of spontaneous vegetation are herbicide-controlled. in may 2003, 216 undisturbed soil samples were collected from the mid 0-15 cm layer in two sampling positions: under and in-between tractor wheel tracks. soil samples were used to measure: water content at different matric potentials, soil bulk density, total porosity, and soil penetration resistance. pore size distribution, air capacity, and s index were also calculated. the inclusion of the soil air capacity and s index associated to pore size distribution broadened the understanding of the soil physical alterations caused by perennial groundcover management types in-between rows of orange orchard. the greater drained pore volume under the leguminous perennial peanut reduces water availability to plants, corroborated by higher air capacity and s index. the physical soil quality in-between rows of orange orchard covered with bahiagrass is more homogeneous that the usual management or perennial peanut.
%K pore size distribution
%K soil bulk density
%K soil compaction
%K soil management
%K soil quality.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0100-06832007000400004&lng=en&nrm=iso&tlng=en