Spatial interpolation techniques for site-specific irrigation management in a mango orchard

Autores

  • Marcos Sales Rodrigues Universidade Federal do Vale do São Francisco http://orcid.org/0000-0002-6567-1273
  • David Castro Alves Universidade Federal do Vale do São Francisco
  • Valéria Cristina de Souza Universidade Federal do Vale do São Francisco
  • Antonio Carlos de Melo Universidade Federal do Vale do São Francisco
  • Augusto Miguel do Nascimento Lima Universidade Federal do Vale do São Francisco

DOI:

https://doi.org/10.14295/cs.v9i1.2645

Palavras-chave:

deterministic, Mangifera indica L., precision agriculture, semiarid, stochastic

Resumo

Interpolation techniques can be a suitable approach to apply site-specific management for irrigation in fruit fields. However, which interpolation method will produce more accurate maps? In order to respond this question, the aim of this study was to test the performance of spatial interpolation techniques for mapping soil physical properties for site-specific irrigation management purpose in a mango orchard in the Brazilian semi-arid region. The experimental site was structured in a grid of 60 georeferenced points, which correspond to the number of mango trees spaced about 8 × 10-m in a fruit field in Petrolina county, Pernambuco. Soil texture, bulk density, volumetric water content at -0.01; -0.033; -0.06; -0.1; and -1.5 MPa, and soil water available were determined. Stochastic and deterministic interpolation methods were tested. Soil physical properties did not show spatial dependence preventing the interpolation by stochastic method (Kriging). However, it was possible to interpolate using deterministic methods such as inverse distance weight (IDW), local polynomial interpolation (LPI), and Radial basis functions (RBF). IDW and RBF showed the best results of map quality for physical properties, however, all interpolation method showed relative small errors and could be all used for delineating zones for site-specific irrigation management.

Downloads

Não há dados estatísticos.

Downloads

Publicado

2018-07-16

Como Citar

Rodrigues, M. S., Alves, D. C., Souza, V. C. de, Melo, A. C. de, & Lima, A. M. do N. (2018). Spatial interpolation techniques for site-specific irrigation management in a mango orchard. Comunicata Scientiae, 9(1), 93–101. https://doi.org/10.14295/cs.v9i1.2645

Edição

v. 9 n. 1 (2018)

Seção

Artigos

Licença

A revista se reserva o direito de efetuar, nos originais, alterações de ordem normativa, ortográfica e gramatical, com vistas a manter o padrão culto da língua, respeitando, porém, o estilo dos autores. As provas finais serão enviadas aos autores. Os trabalhos publicados passam a ser propriedade da revista Comunicata Scientiae, ficando sua reimpressão total ou parcial, sujeita à autorização expressa da direção do periódico. Deve ser consignada a fonte de publicação original. Os originais não serão evolvidos aos autores. As opiniões emitidas pelos autores dos artigos são de sua exclusiva responsabilidade.