2015
DOI: 10.32404/rean.v1i1.255
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Atributos Tecnológicos, Stand E Produtividade Da Cana-Planta Correlacionados Com Aspectos Da Fertilidade Do Solo

Abstract: A agricultura de precisão, que pode ser aplicada em qualquer etapa da produção de cana-de-açúcar, visa proporcionar maior produtividade, redução do impacto ambiental e melhor rendimento econômico pela aplicação correta dos insumos agrícolas. Objetivou-se com este trabalho caracterizar as zonas específicas de manejo do solo, empregando-se correlações lineares e espaciais entre atributos da cultura da cana-de-açúcar e atributos químicos de um Latossolo Vermelho-Amarelo distrófico, no sentido de indicar aquele qu… Show more

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Cited by 3 publications
(5 citation statements)
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References 13 publications
(16 reference statements)
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“…Also, in Table 1, calcium showed very high OLIVEIRA, T. J. et al variability with values of 35.8% and 34.2%, consistent with those obtained by Alves et al (2014), where the author working with a grid of 230 m x 228 m in two soil layers obtained 44.81% and 43.39% respectively. For magnesium, values of Mg1a and Mg2 of 19.0% and 48.5% respectively were observed.…”
Section: Resultssupporting
confidence: 85%
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“…Also, in Table 1, calcium showed very high OLIVEIRA, T. J. et al variability with values of 35.8% and 34.2%, consistent with those obtained by Alves et al (2014), where the author working with a grid of 230 m x 228 m in two soil layers obtained 44.81% and 43.39% respectively. For magnesium, values of Mg1a and Mg2 of 19.0% and 48.5% respectively were observed.…”
Section: Resultssupporting
confidence: 85%
“…Discordant results from those were found by Montanari et al (2013a) (43.4% and 43%) and Lima et al (2013) (32.1% and 48.0%), where the authors obtained very high variability for phosphorus at both soil layers. This discrepancy in the data obtained can be explained by the adsorption of this nutrient to the oxides of Fe and Al (ALVES et al, 2014).…”
Section: Resultsmentioning
confidence: 79%
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“…Finally, with an average ratio of plant attributes (Table 1), it was noted a production of 89.51 t.ha -1 , TRS equal to 136 kg.t -1 , TSS (19.59%) and corresponding purity of 85.48%, lower than those found by Alves et al (2014), with an average productivity of 112.12 t.ha -1 , TRS equal to 160.68 kg.t -1 , TSS (22.52%) and purity measured at 86.60%. Looking at Figure 3, it was detected 11 observations candidate for multivariate outliers by the Mahalanobis Robusta distance (QQ Plot), but considering the size of the sample (118 observations), we chose to not take such observations and work with robust estimation methods (PISON et al, 2003).…”
Section: Preliminary Analysismentioning
confidence: 75%
“…O aumento no teor de brix e diminuição no teor de fibra no experimento 1 proporcionado pela adubação nitrogenada difere dos resultados obtidos por Anjos et al (2007) e Trivelin et al (2002), em que à aplicação de N não interferiu nos valores apresentados. Além disso, a porcentagem de brix apresentou pequena diferença entre as áreas experimentais, no experimento 1 houve média 2 % a mais de brix, apresentando valores médios de 18 %, os quais são próximos ao encontrados por Dalchiavon et al (2014) (GOMES, 2003;FRANCO, 2008;CORREIA, 2012;ALVES et al, 2014).…”
Section: Discussionunclassified