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Registros recuperados: 15 | |
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PESSOA, M. C. P. Y.; LUCHINI, G. A.; MARINHO-PRADO, J. S.; MINGOTI, R.. |
Resumo: Este trabalho avaliou a dinâmica populacional de Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) por simulação numérica em algodão CNPA-293 RF e trigo BR- 18. Esse inseto exótico, polífago, foi detectado no Brasil na safra 2012/2013, causando grande impacto nas produtividades de soja, milho e algodão. Posteriormente, foi confirmado em outras culturas de grãos, fibras e hortaliças, principalmente no bioma Cerrados, exigindo controle. O manejo integrado de H. armigera depende de estratégias fundamentadas no conhecimento de períodos de maior disponibilidade de suas fases imaturas e adultas, e respectivas durações e quantidades de indivíduos, por geração. Dados biológicos do inseto disponíveis para variedades de algodão e trigo possibilitaram... |
Tipo: Parte de livro |
Palavras-chave: Praga de Planta; Dinâmica Populacional; Algodão; Trigo; Praga Exótica; Mapa; Defesa Vegetal; Helicoverpa armigera; Plant pests; Population dynamics; Thematic maps; Geographic information systems. |
Ano: 2020 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1121906 |
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SILVA, J. dos S. V. da; ABDON, M. de M.; SILVA, S. M. A. da; MORAES, J. A. de. |
Maps elaborated from five different periods were recovered and inserted within a single GIS. Considering these maps, the evolution of deforestation in the Pantanal and its surroundings in Brazil was analyzed for the last 32 years and scenarios were described for the timeframe 2010-2050. The results for the different BAP (Floodplain and Plateau), BAP (Mato Grosso and Mato Grosso do Sul States), BAP (Biomes: Pantanal, Cerrado and Amazon). Until 2008, the deforestation on the Pantanal floodplain affected 12,14% of its area, while on the Plateau 58,90% were concerned. The actual deforestation percentages indicate that, if no effective control actions are taken, the natural vegetation from this region could be eliminated till 2050. As an instrument for the... |
Tipo: Artigo de periódico |
Palavras-chave: Geotecnologia; Biomas; Bacia do alto Paraguai; Sistemas de informação geográfica.; Desmatamento.; Deforestation; Ecosystems; Thematic maps; Geographic information systems. |
Ano: 2011 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/895455 |
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SPERANZA, E. A.; TORRE-NETO, A.; RODRIGUES, E. L.; GREGO, C. R.. |
Este trabalho teve como objetivo desenvolver um aplicativo computacional capaz de gerar mapas georreferenciados úteis para a tomada de decisão em irrigação de precisão. Para tanto, foram utilizadas as bibliotecas TerraLib e SOMCode, ambas de código aberto e escritas na linguagem C++, desenvolvidas pelo Instituto Nacional de Pesquisas Espaciais (INPE) e pela Embrapa Tabuleiros Costeiros (CPATC), respectivamente. Os dados utilizados para a geração desses mapas foram obtidos por uma grade de sensores de uma unidade piloto da plataforma Irrigap, desenvolvida pela Embrapa Instrumentação Agropecuária (CNPDIA), dados esses referentes a medidas horárias de umidade e temperatura do solo e temperatura do ar. Diferentes métodos de interpolação foram utilizados, com o... |
Tipo: Anais e Proceedings de eventos |
Palavras-chave: Irrigação de precisão; Mapas temáticos; Instrumentação agropecuária; Mapas georreferenciados; Aplicativo computacional.; Agricultura de Precisão.; Precision agriculture; Georeferencing; Thematic maps; Irrigation. |
Ano: 2010 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/873048 |
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PONZONI,FLÁVIO J.; GALVÃO,LÊNIO S.; EPIPHANIO,JOSÉ C.N.. |
To evaluate the role played by the spatial resolution in distinguishing land cover classes in the Amazon region, different levels of spatial resolution (60, 100, 120, 200 and 250 meters) were simulated from a Landsat_5 Thematic Mapper (TM) image. Thematic maps were produced by visual interpretation from the original (30 x 30 meters) and simulated set of images. The map legend included primary forest, old and young woody secondary succession, and non-forest. The results indicated that for the discrimination between primary forest and non-forest, spatial resolution did not have great influence for pixel size equal or lower than 200 meters. The contrary was verified for the identification of old and young woody secondary vegetation due to their occurrence in... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Spatial resolution; Remote sensing; Amazon region; Thematic maps; Tropical rain forest. |
Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652002000400011 |
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Konopatzki,Marcia R. S.; Souza,Eduardo G.; Nóbrega,Lúcia H. P.; Uribe-Opazo,Miguel A.; Suszek,Grazieli. |
In the last few years, precision agriculture has become commonly used with many crops, particularly cereals, and there is also interest in precision horticulture. Pear is a seasonal fruit and well appreciated by Brazilian people, although it is mostly imported. Brazilian farmers are nowadays trying to increase pear production. Thus, this research aimed at mapping the yield of pear trees in order to study the spatial variability of yield as well as its comparison with spatial variability of soil and plant attributes. The experimental field had 146 pear trees, variety 'Pêra d'água', distributed on a 1.24 ha. Four harvests were performed according to the fruit ripening and from each tree; only the ripe fruits were harvested. In each harvest, all the fruits... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Precision agriculture; Thematic maps; Horticulture. |
Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000200018 |
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Medauar,Caique C.; Galvão,Ícaro M.; Carvalho,Luis C. C.; Silva,Samuel de A.. |
ABSTRACT The objective of this study was to evaluate the spatial-temporal variability of leaf chlorophyll index and its relationship with cocoa yield. The experiment was carried out in an experimental area of cocoa production located in Ilhéus, Bahia State, Brazil. Leaf chlorophyll content was measured in September, October, January, February, March and April in the 2014/2015 season, at each sampling point of a regular grid by using a portable chlorophyll meter. Under the same conditions, yield was evaluated and the data were submitted to descriptive statistics and a linear correlation study. Geostatistical analysis was used to determine and quantify the spatial and temporal variability of leaf chlorophyll index and yield. Leaf chlorophyll index varied... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Theobroma cacao; Geostatistics; Thematic maps. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000300164 |
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Filgueiras,Roberto; Oliveira,Vinicius M. R. de; Cunha,Fernando F. da; Mantovani,Everardo C.. |
ABSTRACT One of the main factors that determine the success of decision-making in the fields is the climatic factor. This way, the geostatistical techniques have been used to represent and understand the spatial or temporal dynamics of meteorological parameters. Therefore, the aim of this research was to represent temporally through thematic maps, the average daily behavior for meteorological variables and the hydric balance for the municipality of Patos de Minas - MG. The climatic data were acquired from the automatic station INMET from the years 1990 to 2015. Later, it was calculated the evapotranspiration and the hydric balance for different capacities of available water in the soil (CAW): 24 mm, 48 mm, 80 mm and 112 mm. The climate variables showed... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Climate; Geostatistical; Ordinary kriging; Thematic maps. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000500705 |
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Registros recuperados: 15 | |
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