Dynamic optimization model to control weed infestation by herbicide rotation
Elenice W. Stiegelmeier1; Marcos M. Furlan2; Renan F. Correa1; Vilma A. Oliveira3; Geral N. Silva4
1 Universidade Tecnológica Federal do Paraná; 2 Universidade Federal da Grande Dourados; 3 Universidade de São Paulo; 4 Universidade Estadual Paulista
Resumo
We propose a dynamic optimization model for weed infestation control using selective herbicide application in a corn crop system. The weed population model is based on the life cycle of weeds present in a single agricultural field. This model incorporates the weed resistance to herbicides that occurs on account of an evolutionary process. Additionally, we propose a weed control strategy based on herbicide rotation aimed at reducing the use of herbicides, maximizing economic returns and minimizing the environmental impacts caused by excessive use of herbicide, using a mixed integer nonlinear programming problem solved by the branch and bound method.
Palavras-chave: Modeling; Numerical Simulation; Optimization; Nonlinear dynamics; Weed control