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| Aparecido,Lucas Eduardo de Oliveira; Rolim,Glauco de Souza; Moraes,José Reinaldo da Silva Cabral de; Rocha,Hélio Gallo; Lense,Guilherme Henrique Expedito; Souza,Paulo Sergio. |
| ABSTRACT Hardier crops are needed in the arid regions of the Brazilian state of Minas Gerais, and annatto (Bixa orellana L.) is a good candidate. Producers, however, do not know if their areas are suitable for its cultivation and so are not investing in its implementation. Agroclimatic zoning would provide guidance to the producers. Identifying potential areas for the production of this crop would thus contribute to the agroclimatic zoning of B. orellana in Minas Gerais. We collected data for air temperature and precipitation from 852 meteorological stations in the state to classify regions as suitable, marginally suitable, or unsuitable for the crop. Suitable regions had an air temperature between 22 and 27 °C and precipitation between 800 and 1600... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Climatic risk; Climatic modeling; Agrometeorology; Bixa orellana L.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000100193 |
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| Wrege,Marcos Silveira; Caramori,Paulo Henrique; Gonçalves,Sergio Luiz; Almeida,Wilson Paes de; Marur,Celso Jamil; Pires,José Ricoy; Yamaoka,Ruy Seiji. |
| Cotton is cultivated in the North and West of Parana State, southern Brazil, under conditions of climatic risk variable in space and time. Risks of temperature below 15ºC at the establishment period, daily average temperature below 20ºC at the stage of cotton boll opening, and soil water deficit for both plant establishment and flowering periods, were estimated to identify homogeneous zones with sowing periods of lower climatic risk. The time interval with adequate temperature, associated with minimum risks of the other factors and yield data from field experiments allowed the identification of seven distinct zones, with best sowing periods ranging from September 20 to November 20. Official credit to the farmers is conditioned by the Central Bank of Brazil... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cotton; Climatic risk; Planting dates; Zoning; Low temperature. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000100010 |
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| Pasinato,Aldemir; Cunha,Gilberto Rocca da; Fontana,Denise Cybis; Monteiro,Jose Eduardo Boffino de Almeida; Nakai,Alan Massaru; Oliveira,Aryeverton Fortes de. |
| Abstract: The objective of this work was to locate and quantify, through geotechnologies, areas that are currently used for annual agriculture in the Cerrado biome of Central Brazil, located within the boundaries defined by the homogeneous region of adaptation of wheat cultivars 4 and that present favorable conditions for rainfed wheat (Triticum aestivum) cultivation. The following information layers were crossed: use and coverage of the Cerrado biome, digital elevation model, and water requirement satisfaction index for wheat in the Cerrado biome. In addition, different levels of water stress (low, moderate, and high), risk levels (20, 30, and 40%), available soil water capacities (ASWCs) (35, 55, and 75 mm), cultivar cycles (105, 115, and 125 days), and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Triticum aestivum; Agricultural zoning; Climatic risk; Territorial management; Tropical wheat. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000700779 |
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| Garcia,Rodrigo Arroyo; Ceccon,Gessí; Sutier,Guilherme Afonso da Silva; Santos,Anna Luiza Farias dos. |
| Abstract: The objective of this work was to evaluate the grain yield of soybean and corn cultivars cropped in succession, in different sowing dates. The experiment was carried out in the municipality of Dourados, in the state of Mato Grosso do Sul, Brazil, during three growing seasons, in the sowing dates: 9/15, 10/1, 10/15, and 11/1 for soybean; and 2/1, 2/15, 3/1, and 3/15 for corn. Although soybean yields are strongly affected by the crop season, sowing between late September and early October results in higher long-term yields. Planting corn in succession in mid-February provides the highest grain yield in the southern region of the state Mato Grosso do Sul; therefore, there is no need for an early soybean sowing in September, in order to ensure corn... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Zea mays; Climatic risk; Early sowing; Off-season corn; Production system. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000100022 |
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