Levantamento fitossociológico de plantas daninhas em áreas de café irrigado na Região Norte de Minas Gerais

Abstract

Weed management is a significant challenge in coffee farming, and understanding the species present is crucial for the development of effective control strategies. Thus, in this study they were carried out phytosociological surveys of weeds on five irrigated coffee farms in the regions of Taiobeiras and Rio Paro de Minas, northern Minas Gerais. The collection was done using the square inventory method, with 20 random releases between the rows of coffee plants. The plants were identified and analyzed for parameters such as frequency, density, abundance, dominance, and similarity. The main species varied among the farms: Eleusine indica and Poa annua on the Esplendor Farm; Alternanthera tenella, Portulaca oleracea, Eleusine indica and Richardia brasiliensis on Lagoa Redonda Farm; Alternanthera tenella, Alternanthera pungens, Euphorbia hirta, Eleusine indica and Poa annua on Taiobeiras Velha; Boerhavia difusa, Eleusine indica, Portulaca oleracea, Euphorbia hirta and Amaranthus blitum on Apóstolo Simão Farm; and Commelina benghalensis, Eleusine indica and Boerhavia difusa on Natanael Farm. The presence of Cuscuta racemosa, a species not recorded in coffee farming, was observed on Lagoa Redonda and Natanael Farms. These data provide valuable information for planning weed management strategies in irrigated coffee cultivation.