@InProceedings{DuftSaLuMoSiSaKo:2017:IdFeDo,
               author = "Duft, Daniel Garbellini and Sanches, Guilherme Martineli and 
                         Luciano, Ana Cl{\'a}udia dos Santos and Montibeller, Bruno and 
                         Silveira, Hilton Lu{\'{\i}}s Ferraz da and Sanches, Ieda Del 
                         Arco and Kolln, Oriel Tiago",
          affiliation = "{} and {} and {} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Identifica{\c{c}}{\~a}o de fechamento de dossel de 
                         cana-de-a{\c{c}}{\'u}car atrav{\'e}s de imagens de VANT",
            booktitle = "Anais...",
                 year = "2017",
               editor = "Gherardi, Douglas Francisco Marcolino and Arag{\~a}o, Luiz 
                         Eduardo Oliveira e Cruz de",
                pages = "5998--6005",
         organization = "Simp{\'o}sio Brasileiro de Sensoriamento Remoto, 18. (SBSR)",
            publisher = "Instituto Nacional de Pesquisas Espaciais (INPE)",
              address = "S{\~a}o Jos{\'e} dos Campos",
             abstract = "Traditionally, planting sugarcane is due to the imposition of the 
                         width of the gauge of agricultural machines, which are limited to 
                         some already established technologies that require innovation. The 
                         use of wider spacing facilitates mechanization, avoids damages 
                         caused by trampling and conditioning the culture to the machines 
                         characteristics. However, the reduction in the distance between 
                         the lines and between plants increases the population of sugarcane 
                         plants by area, and probably, the crop yield. Several factors 
                         contribute to yield increase, such as greater leaf area, greater 
                         use of nutrients and soil water by roots, better control of weeds 
                         by greater soil shading, greater soil protection against erosion 
                         due to the impact of raindrops, more tillers per hectare, among 
                         others. The easiest way of measuring canopy closure is through 
                         leaf area index (LAI). To indirect obtain the LAI, new instruments 
                         and techniques have been developed, presenting speed and facility 
                         for the data collection. Unmanned aerial vehicles (UAVs) can be 
                         used as a low-cost tool for obtaining high resolution remote data. 
                         In order to measure leaf area or canopy closure, several studies 
                         have used some methodologies using UAV, but none of them for 
                         sugarcane. The objective of this paper was to use UAV images to 
                         detect canopy closure at different spacing of sugarcane planting 
                         in experimental plots. The ANOVA test shown that the Green-Red 
                         Vegetation Index (GRVI) index was able to detect canopy closure.",
  conference-location = "Santos",
      conference-year = "28-31 maio 2017",
                 isbn = "978-85-17-00088-1",
                label = "59687",
             language = "pt",
         organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                  ibi = "8JMKD3MGP6W34M/3PSMC4T",
                  url = "http://urlib.net/ibi/8JMKD3MGP6W34M/3PSMC4T",
           targetfile = "59687.pdf",
                 type = "VANTs, videografia e alta resolu{\c{c}}{\~a}o",
        urlaccessdate = "27 abr. 2024"
}