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Produtividade da cana-de-açúcar: Variabilidade linear e espacial entre componentes tecnológicos e da produção
Fecha
2014-01-01Registro en:
Bioscience Journal, v. 30, n. 3 SUPPL. 1, p. 390-400, 2014.
1981-3163
1516-3725
2-s2.0-84904039949
7000845749315355
0673699867824241
0000-0002-3557-2362
Autor
Instituto Federal de Mato Grosso, Campus Campo Novo do Parecis, Departamento de Agronomia
Universidade Estadual Paulista (Unesp)
Institución
Resumen
Nowadays, the culture of the sugarcane plays an important role regarding the Brazilian reality, especially in the aspect related to the alternative energy sources. In 2009, the municipality of Suzanápolis (SP), in the Brazilian Cerrado, an experiment was conducted with the culture of the sugarcane in a Red eutrophic, with the aim of selecting, using Pearson correlation coefficients, modeling, simple, linear and multiple regressions and spatial correlation, and also the best technological and productive components, to explain the variability of the productivity of the sugarcane. The geostatistical grid was installed in order to collect the data, with 120 sampling points, in an area of 14.53 ha. For the simple linear regressions, the plants population is the component of production that presents the best quadratic correlation with the productivity of the sugarcane, given by: PRO = -0.553**xPOP2+16.14*xPOP-15.77. However, for multiple linear regressions, the equation PRO = -21.11+4.92xPOP**+0.76xPUR** is the one that best presents in order to estimate that productivity. Spatially, the best correlation with yield of the sugarcane is also determined by the component of the production population of plants.