MAIA, João Carlos de Souza.; ROBOREDO, Delmonte.; GUIMARÃES, Ednaldo Carvalho.; KIM, Michely Eliane.
Résumé:
Knowledge on spatial dependence characterization of soil properties can help plan and
optimize research studies, and be used for commercial agricultural cultivation. The objective of this
work was to evaluate the spatial variability of physical attributes of a RHODIC HAPLUSTOX under
soybean cultivation. The research was carried out at Fazenda Santa Rosa, in the township of Nova
Mutum, MT, Brazil. The experimental plots were delimited by a 100 × 50 m grid, totaling 45 sampling
plots. The following attributes were studied: soil mechanical resistance to penetration, bulk density,
and water content of soil, at two depths (0.0 – 0.10 m and from 0.10 – 0.20 m). Soil management
changed the spatial dependence of the soil attributes on the surface layer, increasing the variability of
the soil's physical attributes in relation to the deeper layer.
