Data/hora: 22/06/2024 03:21:05

Biblioteca(s): | Embrapa Gado de Leite.
Data corrente: | 02/01/2020
Data da última atualização: | 06/02/2024
Autoria: | BRIGHENTI, A. M.; BENITES, F. R. G.; SOUZA SOBRINHO, F. de.
Afiliação: | ALEXANDRE MAGNO B DOS SANTOS, CNPGL; FLAVIO RODRIGO GANDOLFI BENITES, CNPGL; FAUSTO DE SOUZA SOBRINHO, CNPGL.
Título: | African star grass response to postemergence herbicides.
Ano de publicação: | 2019
Fonte/Imprenta: | Ciência e Agrotecnologia, v. 43, artigo e026918, 2019.
DOI: | https://doi.org/10.1590/1413-7054201943026918
Idioma: | Inglês
Conteúdo: | Cynodon nlemfuensis Vanderyst, commonly called African star grass, is excellent forage in pasture formation and herd feeding. However, little information is available regarding weed management in areas of star grasses. Two field experiments were carried out in 2017 and 2018 to evaluate the response of African star grass to postemergence herbicides. The treatments applied were as follows: 2,4-D (1,340.0 g ae ha-1); 2,4-D + picloram (720.0 +192.0 g ae ha-1 + 0.3% v/v nonionic surfactant); fluroxypyr + picloram (80.0 + 80.0 g ae ha-1 + 0.3% v/v mineral oil); fluroxypyr + aminopyralid (160.0 + 80.0 g ae ha-1 + 0.3% v/v mineral oil); fluroxypyr + triclopyr (320.0 + 960.0 g ae ha-1 + 0.3% v/v mineral oil); bentazon (720.0 g ai ha-1 + 0.5% v/v mineral oil); imazapyr (25.0 g ai ha-1); monosodium methyl arsenate (MSMA) (1,440.0 g ai ha-1 + 0.1% v/v nonionic surfactant); atrazine + S-metolachlor (1,480.0 + 1,160.0 g ai ha-1); atrazine + tembotrione (1,000.0 + 100.8 g ai ha-1 + 0.3% v/v mineral oil) and a control without herbicide application. The most phytotoxic treatments for the African star grass plants were fluroxypyr + amininopyralid, fluroxypyr + triclopyr and atrazine + tembotrione. The dry matter yield of star grass plants was not reduced by the applications of 2,4-D, 2,4-D + picloram, bentazon, imazapyr, MSMA and atrazine + S-metolachlor. These herbicides can be considered potential practices in African star grass crop management.
Palavras-Chave: | Selectivity.
Thesaurus Nal: | Chemical control; Cynodon nlemfuensis; Forage; Pastures.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/208047/1/Brighenti-African-1981-1829-cagro-43-e026918.pdf
Registro original: | Embrapa Gado de Leite (CNPGL)
Exemplares: | CNPGL - (24920-1) - UPC - AP - DD -  -  -  - DIS