01944nam a2200253 a 450000100080000000500110000800800410001910000190006024501540007926003870023352008500062065000150147065000130148565000220149865000150152065000160153565000110155165000260156265000230158865300140161170000210162570000250164670000190167119686462013-10-18       2013    bl uuuu     u00u1 u    #d1 aPARAIBA, L. C.  aModelling pesticide uptake by potatoes through an ordinary differential equation coupled with a dispersion-advection equation.h[electronic resource]  aIn: REUNIÃO ANUAL DA REGIÃO BRASILEIRA DA SOCIEDADE INTERNACIONAL DE BIOMETRIA, 58.; SIMPÓSIO DE ESTATÍSTICA APLICADA À EXPERIMENTAÇÃO AGRONÔMICA, 15., 2013, Campina Grande. Modelagem estatística em áreas multidisciplinares: impactos causados pelas mudanças climáticas na Região Nordeste. Anais... Campina Grande: Sociedade Internacional de Biometria, 2013. 16 p.c2013  aThe objective of this work is to present a model that simulates pesticide uptake by potatoes using a system with two differential equations, where one equation describes pesticide uptake by potatoes and the other one describes the pesticide lixiviation in soil. It was assumed that uptake and lixiviation occur, respectively, by diffusion of the pesticide through potato tissues and by diffusion and advection of the pesticide in soil profile. Uptake was described by an ordinary differential equation (ODE) that was coupled to a dispersionadvection equation (DAE). These equations describe the kinetics of the pesticide in potatoes and in soil profile, respectively. The coupled equations (ODE-DAE) were numerically solved through a finite difference method, programmed in Matlab® system, and used to simulate uptake of pesticides by potatoes.  aAbsorption  aPotatoes  aSimulation models  aAbsorção  aAgrotóxico  aBatata  aModelo de simulação  aModelo matemático  aPesticide1 aCONTRERAS, W. A.1 aPAZIANOTTO, R. A. A.1 aLUIZ, A. J. B.