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Response of bell pepper crop subjected to irrigation depths calculated by different methodologies AGRIAMBI
Silva,Gustavo H. da; Ferreira,Mariane G.; Pereira,Silvio B.; Delazari,Fábio T.; Silva,Derly J. H. da.
ABSTRACT Water must be supplied to a crop in the proper amount and in a timely manner. Vegetables require a good water availability in soil during their entire cycle. Thus, it is very important the implementation of an irrigation management and accurate estimation of water requirement. The objective of this work was to evaluate the effect of five irrigation depths estimated by the dual-Kc and single-Kc methodologies on the characteristics of growth, production and water use efficiency in the pepper crop. A randomized block design was adopted in a split plot arrangement. The effect of five irrigation depths (50, 75, 100, 125 and 150% of crop evapotranspiration - ETc) was evaluated in the plots, and the methodologies were evaluated in the subplots. It was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Capsicum annuum L.; Evapotranspiration; Dual Kc; Single Kc.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000100045
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Performance of different methods for reference evapotranspiration estimation in Jaíba, Brazil AGRIAMBI
Silva,Gustavo H. da; Dias,Santos H. B.; Ferreira,Lucas B.; Santos,Jannaylton É. O.; Cunha,Fernando F. da.
ABSTRACT FAO Penman-Monteith (FO-PM) is considered the standard method for the estimation of reference evapotranspiration (ET0) but requires various meteorological data, which are often not available. The objective of this work was to evaluate the performance of the FAO-PM method with limited meteorological data and other methods as alternatives to estimate ET0 in Jaíba-MG. The study used daily meteorological data from 2007 to 2016 of the National Institute of Meteorology’s station. Daily ET0 values were randomized, and 70% of these were used to determine the calibration parameters of the ET0 for the equations of each method under study. The remaining data were used to test the calibration against the standard method. Performance evaluation was based on...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Missing data; Modeling; Irrigation management; FAO-Penman-Monteith.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000200083
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