Precision agriculture to study soil chemical properties and the yield of a coffee field

Authors

  • Gabriel Araújo e Silva Ferraz Universidade Federal de Lavras
  • Fábio Moreira da Silva Universidade Federal de Lavras
  • Pedro Augusto Negrini da Costa Universidade Federal de Lavras
  • Antônio Carlos Silva Universidade Federal de Lavras
  • Francisval de Melo Carvalho Universidade Federal de Lavras

DOI:

https://doi.org/10.25186/cs.v7i1.204

Keywords:

Geostatistic, Spatial variability, Kriging, Semivariogram, coffee plant

Abstract

Precision agriculture appears as an important tool in the management of coffee farms where the knowledge of some soil fertility characteristics associated with the coffee production could help in specific application of fertilizers with positive environmental and economic results. So the aim of this article was to use precision agriculture and geoestatistics to evaluate the availability of phosphorus, potassium and yield of the coffee plant by evaluating the semivariogram and kriging maps and show that these tools are important for coffee management. This study was conducted on the Brejão farm in Três Pontas, Minas Gerais state, Brazil. As a data base we used soil chemical property data obtained by sampling in a georreferenced location using a quadricycle with a sampler and a GPS, and the yield data was obtained from manual harvest on the georreferenced location. The analysis of these data by using statistics and geostatistics tools allowed to characterize the spatial variability of the phosphorus, potassium, and the coffee yield, and allowed to analyze the relation among these variables. It was possible to observe that spatial dependence exists so it is possible to create maps of spatial distribution of the variables.

Author Biographies

Gabriel Araújo e Silva Ferraz, Universidade Federal de Lavras

Engenheiro Agrícola formado pela Universidade Federal de Lavras e atualmente é estudante de mestrado no curso de Engenharia Agrícola na área de concentração Máquinas e Automação Agrícola

Fábio Moreira da Silva, Universidade Federal de Lavras

Engenheiro Agrícola, doutor em engenharia Mecânica, Professor do Departamento de Engenharia (DEG) da Universidade Federal de Lavras (UFLA)

Pedro Augusto Negrini da Costa, Universidade Federal de Lavras

Granduando em Engenharia Agrícola na Universidade Federal de Lavras

Antônio Carlos Silva, Universidade Federal de Lavras

Engenheiro Agrícola, pós-doutorando em Engenharia Agrícola na área de Máquinas e Automação Agrícola na Universidade Federal de Lavras

Francisval de Melo Carvalho, Universidade Federal de Lavras

Engenheiro Agrônomo, Doutor em Administração de Empresas, Professor do Departamento de Administração e Economia/DAE – Universidade Federal de Lavras

Published

2012-06-27

How to Cite

FERRAZ, G. A. E S.; SILVA, F. M. DA; COSTA, P. A. N. DA; SILVA, A. C.; CARVALHO, F. DE M. Precision agriculture to study soil chemical properties and the yield of a coffee field. Coffee Science - ISSN 1984-3909, v. 7, n. 1, p. 59-67, 27 Jun. 2012.

Issue

Section

Articles