Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/72021
Type: Artigo de periódico
Title: Spatial variability of chemical attributes in Latosol and Argisol
Author: Montanari, R
Pereira, GT
Marques, J
de Souza, ZM
Pazeto, RJ
Camargo, LA
Abstract: The objective of this research was to characterize the spatial variability of chemical attributes of soils cultivated with sugarcane in areas with variations in relief forms. The two soils studied were a Latosol, placed in a convex landform (158ha), and an Argisol, placed in a linear landform (172ha). Soil samples for chemical analysis were collected in a regular grid, at the depth of 0.0-0.5m. The convex landform presented the highest coefficient variation and ranges. Therefore, the Latosol inserted in the landform convex presented greater spatial variability for chemical attributes than the Argisol in the linear landform. A larger number of points must be sampled in order to represent the spatial variability of the Latosol from the convex landform. We recommend the sampling interval to be equal to the range of the spatial dependency in order to associate a less intensive sampling effort with a higher representativity.
Subject: Saccharum offcinarum
geostatistics
relation-soil-landscape
Country: Brasil
Editor: Univ Federal Santa Maria
Rights: aberto
Identifier DOI: 10.1590/S0103-84782008000500010
Date Issue: 2008
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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