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	Provedor de dados Scientia Agricola (2) Autor Teruel,D.A. (2) Bacchi,O.O.S. (1) Barbieri,V. (1) Dourado-Neto,D. (1) Ferraro Jr.,L.A. (1) Frizzone,J. A. (1) Nielsen,D.R. (1) Reichardt,K. (1) Mais... Palavra-chave Crop modeling (1) Growing degree-days (1) Leaf Area Index (1) Modeling (1) Simulation (1) Sugarcane (1) Water stress (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 1998 (1) 1997 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Principles of crop modelling and simulation: II. the implications of the objective in model development Scientia Agricola Dourado-Neto,D.; Teruel,D.A.; Reichardt,K.; Nielsen,D.R.; Frizzone,J. A.; Bacchi,O.O.S.. With the purpose of presenting to scientists the implications of the objective in model development and a basic vision of modeling, with its potential applications and limitations in agriculture, an integration of crop modeling professionals with agricultural professionals is suggested. Models mean modernization of the information, of the measurement process and of an efficient way to learn more about complex systems. They are one of the best mechanisms of transforming information in useful knowledge and of transferring this knowledge to others. One of the problems that impede a larger progress in modeling is the lack of communication between modelers and a frequent appearance of modelers without a global vision of reality. Tipo: Info:eu-repo/semantics/article Palavras-chave: Crop modeling; Simulation. Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161998000500009 Sugarcane leaf area index modeling under different soil water conditions Scientia Agricola Teruel,D.A.; Barbieri,V.; Ferraro Jr.,L.A.. The knowledge of the Leaf Area Index (LAI) variation during the whole crop cycle is essential to the modeling of the plant growth and development and, consequently, of the crop yield. Sugarcane LAI evolution models were developed for different crop cycles, by adjusting observed LAI values and growing degree-days summation data on a power-exponential function. The resultant equations simulate adequately the LAI behavior during the entire crop cycle. The effect of different water stress levels was calculated in different growth periods, upon the LAI growth The LAI growth deficit was correlated with the ratio between actual evapotranspiration and máximum evapotranspiration, and a constant named kuu was obtained hi each situation. It was noticed that the kLAI... Tipo: Info:eu-repo/semantics/article Palavras-chave: Leaf Area Index; Sugarcane; Growing degree-days; Water stress; Modeling. Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161997000300008 Registros recuperados: 2 Primeira ... 1 ... Última

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