BIOLOGIA DO Sorghum halepense E MANEJO NA CULTURA DO MILHO

Abstract

Sorghum halepense is a weed of great agricultural relevance, especially in maize cultivation, due to its high reproductive capacity through both seeds and rhizomes, which favors its persistence and rapid spread in cultivated areas. Therefore, this study aimed to address the main aspects related to the biology of S.halepense and the management strategies adopted for its control in maize crops. The research consisted of a literature review based on the analysis of scientific articles, technical bulletins, and publications available in databases such as SciELO, Embrapa, Google Scholar, among other relevant technical sources. The morphological and biological characteristics of the species, the impacts of its infestation on maize cultivation, and the main management practices— especially chemical control—were discussed. The analyzed studies indicate that Johnsongrass exhibits a high competitive ability for water, light, and nutrients, which can lead to significant reductions in maize growth and yield. In this context, the judicious use of herbicides, such as nicosulfuron and other graminicides, applied at appropriate weed growth stages, stands out as an effective alternative for its control. Thus, knowledge of the biology of Sorghum halepense is essential for the adoption of more efficient management strategies in maize production.