Open-access Herbicidal effects of isouron on sugarcane crop.

Two field trials were conducted from 1982 to 1984 on São Paulo State, Brazil, to determine the effects of N'- [5(1 ,l-dimethylethyl)-3-isoxazolyl] - N ,N-dimethylurea (isouron), on weeds and sugarcane tolerance. Isouron provided an excelent control for a period of two months of Brachiaria plantaginea (link) Hitch, Digitaria sanguinalis (L.) Scop., Amaranthus viridis L., Sonchus oleraceus L., Cyperus eragrostis Lam. e Richardia brasiliensis Gomes at the rates of 0.75 to 1.0 kg/ha-l , in preemergence applications. The growth and the productions of NA 5679 and SP 71-1406 cultivar were not affected by isouron.

KEY-WORDS
Pesticides; weeds Saccharum spp.

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Instituto Biológico Av. Conselheiro Rodrigues Alves, 1252 - Vila Mariana - São Paulo - SP, 04014-002 - São Paulo - SP - Brazil
E-mail: arquivos@biologico.sp.gov.br
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