eng Enviro Research Publishers Current Agriculture Research Journal 2347-4688 2321-9971 2024-04-15 12 1 07 09 18713 article José Luis da Silva Nunes 1 Agronomist, Dr. in Plant Science Administrative Director BADESUL Development, Porto Alegre, Rio Grande do Sul state, Brazil https://www.agriculturejournal.org/volume12number1/management-of-spontaneous-plants/