Replication data for: Performance of interpolation methods in digital soil mapping: the influence of data characteristics

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Bejarano, Laura Delgado; Amaral, Lucas Rios do, 2026, "Replication data for: Performance of interpolation methods in digital soil mapping: the influence of data characteristics", https://doi.org/10.25824/redu/DEBGPB, Repositório de Dados de Pesquisa da Unicamp, V1, UNF:6:uIaVVWsqg3Ipe/aqYCeqwg== [fileUNF]
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Description
This dataset compiles the georeferenced soil sampling tables produced within the Master’s research in Agricultural Engineering (UNICAMP). It contains the soil fertility data collected in three agricultural areas located in São Paulo State, Brazil. The dataset includes sampling tables corresponding to three sampling intensities (1, 0.5, and 0.2 samples per hectare), representing different density scenarios evaluated in the study. Each table contains geographic coordinates (UTM) and soil fertility attributes (P, K, CTC, pH, V%, and clay content). These data were used as input for the generation of soil fertility maps using six spatial interpolation methods (IDW, TPS, OK, RK, RF, and SVM) and for the development of variable-rate fertilizer prescription maps based on regional agronomic recommendations. The interpolation procedures and prescription criteria are fully described in the associated Master’s thesis and related publications.
Subject Agricultural Sciences; Computer and Information Science; Engineering
Keyword Interpolation, Soil fertility, Soil mapping
Related Publication Delgado Bejarano, L., Loureiro Gonçalves Oliveira, A., Fiolo Pozzuto, J. V., Castañeda Sánchez, D., & Rios do Amaral, L. (2026). Performance of interpolation methods in digital soil mapping: the influence of data characteristics. Precision Agriculture, 27(1), 10. doi: https://doi.org/10.1007/s11119-025-10311-8
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Caiua_0.2am_cada1ha.tab
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Published Feb 13, 2026
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1 Variables, 40 Observations UNF:6:qn/rNziaAd4RrtWOsXdC3Q==
Dataset with a sampling density of 1 sample per 5 ha in the Caiuá area for soil fertility attributes.
Caiua_0.5am_cada1ha.tab
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Published Feb 13, 2026
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1 Variables, 100 Observations UNF:6:qsBfadyfQ9F2QergxBzpYg==
Dataset with a sampling density of 1 sample per 2 ha in the Caiuá area for soil fertility attributes.
Caiua_1am_cada1ha.tab
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Published Feb 13, 2026
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1 Variables, 200 Observations UNF:6:oS9rM4gZ7jF7D51O3FF0Fg==
Dataset with a sampling density of 1 sample per 1 ha in the Caiuá area for soil fertility attributes.
Cosmopolis_0.2am_cada1ha.tab
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Published Feb 13, 2026
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1 Variables, 23 Observations UNF:6:Fc2a0DdOFiKOC7yK0unfqg==
Dataset with a sampling density of 1 sample per 5 ha in the Cosmopolis area for soil fertility attributes.
Cosmopolis_0.5am_cada1ha.tab
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Published Feb 13, 2026
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1 Variables, 58 Observations UNF:6:tQuRuUxGzx+9wG1T+M71vw==
Dataset with a sampling density of 1 sample per 2 ha in the Cosmopolis area for soil fertility attributes.
Cosmopolis_1am_cada1ha.tab
Tabular Data - 5.1 KB
Published Feb 13, 2026
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1 Variables, 114 Observations UNF:6:pIW+q9v0ShNw+baIGt10Kw==
Dataset with a sampling density of 1 sample per 1 ha in the Cosmopolis area for soil fertility attributes.
README – Master’s Dataset.md
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Published Feb 13, 2026
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MD5: d8d30875e1aa2efc51fd8c8d14ce6437
README file with description of dataset
Sales_0.2am_cada1ha.tab
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Published Feb 13, 2026
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1 Variables, 15 Observations UNF:6:ObiEK777L4Kd0eZZ60dqrQ==
Dataset with a sampling density of 1 sample per 5 ha in the Sales Oliveira area for soil fertility attributes.
Sales_0.5am_cada1ha.tab
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Published Feb 13, 2026
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1 Variables, 38 Observations UNF:6:+ynSbDYM3l4TLf+IkO6gyw==
Dataset with a sampling density of 1 sample per 2 ha in the Sales Oliveira area for soil fertility attributes.
Sales_1am_cada1ha.tab
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1 Variables, 77 Observations UNF:6:3PiwMbXm7xZNJ2hR+72Nyg==
Dataset with a sampling density of 1 sample per 1 ha in the Sales Oliveira area for soil fertility attributes.
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