EFFECT OF THE DOSES OF HERBICIDES IN THE CHEMICAL CONTROL OF THE HELIOTROPO (Hedichium coronarium) IN CORDILLERA, CHIRIQUI, PANAMA. 1993. (1998). Ciencia Agropecuaria, 9, 117-126. https://idiap.desarrollo-ojs1.metadatos.org/index.php/ciencia-agropecuaria/article/view/461