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| Registros recuperados: 19 | |
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| LEMOS, N. L. S.; CAVALCANTE, A. C. R.; SILVA, T. G. F. da; PEZZOPANE, J. R. M.; SANTOS, P. M.; CÂNDIDO, M. J. D.. |
| Abstracts: This study aimed to define areas suitable, and the irrigation water requirement for, cultivation of Tanzania guineagrass in the state of Ceará, Brazil. Tanzania guineagrass yield was estimated by a mathematical model, which considers the crop actual evapotranspiration, resulting from the crop climatological water balance. The water requirement throughout the year was estimated for soils with a water holding capacity of 20 (shallow soils), 40 (sandy soils), 60 (soils with medium texture) and 100 mm (clay soils). The relative frequency of occurrence of monthly productions greater than 2,750 kg DM ha-1 month-1 was obtained for different areas in Ceará, representative of most of the state's economic mesoregions. Tanzania guineagrass annual yields in... |
| Tipo: Artigo de periódico |
Palavras-chave: Capacidade de armazenamento de água; Taxa de acúmulo; Capim Tanzânia; Brasil; Ceará; Water storage.; Water requirements; Panicum maximum; Modelo matemático; Gramínea forrageira; Matéria seca; Mathematical models; Simulation models; Pastures; Brazil.. |
| Ano: 2017 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1070933 |
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| Farias, Vivian Dielly da Silva; Costa, Deborah Luciany Pires; Pinto, Joao Vitor de Novoa; Souza, Paulo Jorge Oliveira Ponte de; Souza, Everaldo Barreiro de; Ortega-Farias, Samuel. |
| The use of empirical agrometeorological models that can be adjusted to the climatic conditions of different regions has become increasingly necessary to improve water management in grain-producing municipalities. The aim of this work is to examine the correlation between various reference evapotranspiration (ETo) estimation methods and the standard FAO 56 Penman-Monteith method, as well as to determine correction factors, when necessary, for crop-producing municipalities in the northeast of Pará, during both the rainy and dry seasons. We compared simpler methods of ETo estimation to the FAO 56 Penman-Monteith method. For this purpose, meteorological data from Tracuateua, Bragança, Capitão Poço and Castanhal, provided by the National Institute of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Penman Monteith FAO 56; Climate monitoring; Water requirements. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42475 |
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| Akinbile, Christopher Oluwakunmi. |
| This study estimated crop water requirements using CROPWAT while AQUACROP and CERES models evaluated performance in simulating biomass and grain yield of upland rice’s response to different irrigation schedule. NERICA 4 was subjected to five treatment given as: full (100%ET), good (80%ET), medium (60%ET), average (40%ET), and low (20%ET) and three replicates in a randomized block design. It was planted at the farmyard of the International Institute of Tropical Agriculture (IITA) Ibadan, Nigeria for two seasons 2015 and 2016 and the results of the first season was used in model calibration while second season’s result was used in validation. Biomass and grain yields values were obtained and compared with simulated values from AQUACROP and CERES and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: NERICA 4; Water requirements; Yield; Simulation models; Irrigation schedule.. |
| Ano: 2020 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5636 |
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| Registros recuperados: 19 | |
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