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Título: | Variabilidade espacial e temporal do fósforo, potássio e da produtividade de uma lavoura cafeeira |
Título(s) alternativo(s): | Spatial and temporal variability of phosphorus, potassium and of the yield of a coffee field |
Palavras-chave: | Café – Produtividade Café – Efeito do fósforo Café – Efeito do potássio Agricultura de precisão – Métodos estatísticos Geologia – Métodos estatísticos Coffee – Productivity Coffee – Effect of phosphorus Coffee – Effect of potassium Precision farming – Statistical methods Geology – Statistical methods Coffea arabica |
Data do documento: | Jan-2012 |
Editor: | Associação Brasileira de Engenharia Agrícola |
Citação: | FERRAZ, G. A. e S. et al. Variabilidade espacial e temporal do fósforo, potássio e da produtividade de uma lavoura cafeeira. Engenharia Agrícola, Jaboticabal, v. 32, n. 1, p. 140-150, jan./fev. 2012. |
Resumo: | The Precision Agriculture appears as an important tool to the management of coffee farms where the knowledge of some soil features associated with the coffee production could help specific application of fertilizing with positive environmental and economic results. So the aim of this study was to use precision agriculture and geoestatistics to evaluate the variables phosphorus, potassium and the coffee plant yield, in three different crops, by evaluating the semivariogram and kriging maps and show that these tools are important to the coffee management. This study was conducted on the Brejão farm in Três Pontas, Minas Gerais, in 2007/2008, 2008/2009 e 2009/2010 crop. As data base were used chemical soil 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. It was possible to characterize the spatial variability magnitude of the studied attributes, and they presented huge variation on time and space. Adjusts of the best semivariograms enable to produce more accurate maps that contribute to the geostatistics uses on coffee crop. |
URI: | http://repositorio.ufla.br/jspui/handle/1/28806 |
Aparece nas coleções: | DEG - Artigos publicados em periódicos |
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ARTIGO_Variabilidade espacial e temporal...de uma lavoura cafeeira.pdf | 725,8 kB | Adobe PDF | Visualizar/Abrir |
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