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 Author(s): VIEIRA, S. R.; CARVALHO, J. R. P. de; PAZ GONZÁLEZ, A. The semivariogram function fitting is the most important aspect of geostatistics and because of this the model chosen must be validated. Jack knifing may be one the most efficient ways for this valida... ... |
 Author(s): VIEIRA, S. R.; GREGO, C. R.; TOPP, G. C.; REYNOLDS, W. D. The water, element essential for life, is present as a large reservoir in the soil. Soil water content varies in space as a consequence of the variability of other related properties and its study is... ... |
 Author(s): VIEIRA, S. R.; CARVALHO, J. R. P. de; CEDDIA, M. C.; PAZ GONZÁLEZ The use of geostatistics requires at least that the intrinsic hypothesis be satisfied. The presence of a trend in the data invalidates this hypothesis. One of the ways of solving this problem is by su... ... |
 Author(s): GUEDES FILHO, O.; VIEIRA, S. R.; CHIBA, M. K.; GREGO, C. R. It is known, for a long time, that crop yields are not uniform at the field. In some places, it is possible to distinguish sites with both low and high yields even within the same area. This work aime... ... |
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 Author(s): VENDRUSCULO, L. G.; BASSI, B.; EVARISTO, J. W. ABSTRACT. The objective of this work was to study the variability of maximum temperature and chlorophyll A in an agroforestry system using the geostatistics technique. This study was carried out in an... ... |
 Author(s): FRIGUETTO, J. M.; MACHOTA JUNIOR, R.; BORTOLI, L. C.; BOTTON, M.; GUERRA, A. C. B. The South American fruit fly Anastrepha fraterculus (Wied., 1830) is one of the major insect pests of economicimportance in vineyards of Southern Brazil. Understanding species behavior and knowing the... ... |
 Author(s): HURTADO, S. M. C.; SILVA, C. A.; RESENDE, A. V. de; PINHO, R. G. von; INÁCIO, E. dos S. B.; HIGASHIKAWA, F. S. In Brazil, technicians, in most cases, ignore the aspects related to the spatial variability of the soil acidity attributes when liming requirement is calculated. The objective of this study was to va... ... |
 Spatial variability of satured soil hydraulic conductivity in the region of Araguaia River - Brazil. Author(s): GUIMARÃES, E. C.; HAMADA, E.; GOMES, M. A. F. This study evaluates the spatial variability of saturated hydraulic conductivity in the soil in an area of 51,850 ha at the headwaters of the Araguaia River MT/GO. This area is highly vulnerable becau... ... |
 Author(s): AQUINO, R. F.; SILVA, M. L. N.; FREITAS, D. A. F. de; CURI, N.; MELLO, C. R. de; AVANZI, J. C. Rainfall erosivity and its spatial variability were studied for 54 pluviometric stations in Southern Minas Gerais State (48º00? - 44º00?W; 23º50? - 20º00?S), aiming to plan the land-use strategies. Th... ... |
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