Interaction between saflufenacil and imazapyr+imazapic in the management of barnyardgrass and weedy rice and selectivity for irrigated rice oleh Ânderson da Rosa Feijó, Marcus Vinicius Fipke, Luiza Piccinini Silveira, Edinalvo Rabaioli Camargo, Nelson Diehl Kruse, Luis Antonio de Avila