Weed interference period and economic threshold level of ryegrass in wheat

by Leandro Galon, Felipe José Menin Basso, Leonardo Chechi, Thalita Pedrozo Pilla, Carlos Orestes Santin, Maico André Michelon Bagnara, Milena Barretta Franceschetti, Camile Thaís Castoldi, Gismael Francisco Perin, César Tiago Forte