Data/hora: 02/06/2024 15:33:09

Provedor de dados: | 90
País: | Brazil
Título: | Sampling Design of Soil Physical Properties in a Conilon Coffee Field
Autores: | Santos,Eduardo Oliveira de Jesus; Gontijo,Ivoney; Silva,Marcelo Barreto da; Partelli,Fábio Luiz.
Data: | 2017-01-01
Ano: | 2017
Palavras-chave: | Coffea canephora; Geostatistics; Soil sampling.
Resumo: | ABSTRACT Establishing the number of samples required to determine values of soil physical properties ultimately results in optimization of labor and allows better representation of such attributes. The objective of this study was to analyze the spatial variability of soil physical properties in a Conilon coffee field and propose a soil sampling method better attuned to conditions of the management system. The experiment was performed in a Conilon coffee field in Espírito Santo state, Brazil, under a 3.0 × 2.0 × 1.0 m (4,000 plants ha-1) double spacing design. An irregular grid, with dimensions of 107 × 95.7 m and 65 sampling points, was set up. Soil samples were collected from the 0.00-0.20 m depth from each sampling point. Data were analyzed under descriptive statistical and geostatistical methods. Using statistical parameters, the adequate number of samples for analyzing the attributes under study was established, which ranged from 1 to 11 sampling points. With the exception of particle density, all soil physical properties showed a spatial dependence structure best fitted to the spherical model. Establishment of the number of samples and spatial variability for the physical properties of soils may be useful in developing sampling strategies that minimize costs for farmers within a tolerable and predictable level of error.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832017000100411
Editor: | Sociedade Brasileira de Ciência do Solo
Relação: | 10.1590/18069657rbcs20160426
Formato: | text/html
Fonte: | Revista Brasileira de Ciência do Solo  v.41 2017
Fonte: | info:eu-repo/semantics/openAccess