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Caique Carvalho Medauar Samuel de Assis Silva Luis Carlos Cirilo Carvalho Rafael Augusto Soares Tibúrcio Julião Soares de Souza Lima Paullo Augusto Silva Medauar 《Journal of Sustainable Forestry》2018,37(7):739-752
This study evaluated the effectiveness of chemical control for eradicating eucalyptus sprouts using images obtained with Unmanned Aerial Vehicle (UAV). The study was carried out in eucalyptus plantations in Itabela, BA, in replanting areas during pre-planting application of herbicide. Aerial images obtained by a UAV were used to evaluate the effectiveness of the herbicide application for sprouts control. After the images were acquired, they were processed to calculate the normalized difference vegetation index (NDVI) and submitted to a supervised classification to quantify the percentage reduction of sprout green matter. The percentage data were submitted to analysis of variance and the means were compared by Tukey test at 5%. The differences, both visual and average percentages were observed only during the evaluation period with no evident effect of the treatments on sprout control. The images provided by the UAV allowed to monitor and identify visually the plots where biomass reduced or increased and to evaluate the effectiveness of chemical control of eucalyptus sprouts, indicating areas where it was nonexistent, partial or total. 相似文献
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Rosas Jorge Tadeu Fim de Assis Silva Samuel de Almeida Samira Luns Hatum Medauar Caique Carvalho Moraes Willian Bucker de Souza Lima Julião Soares 《European journal of plant pathology / European Foundation for Plant Pathology》2021,161(3):677-692
European Journal of Plant Pathology - Coffee rust has been one of the main factors responsible for reducing crop yield. The management of this disease corresponds to one of the main costs in the... 相似文献
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