Data/hora: 12/06/2024 16:57:59

Biblioteca(s): | Embrapa Gado de Leite.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 2
Data corrente: | 22/11/2017
Data da última atualização: | 06/02/2024
Autoria: | BRIGHENTI, A. M.; MACHADO, J. C.; LEDO, F. J. da S.; CALSAVARA, L. H. F.; VAROTTO, Y. V. G.
Afiliação: | ALEXANDRE MAGNO B DOS SANTOS, CNPGL; JUAREZ CAMPOLINA MACHADO, CNPGL; FRANCISCO JOSE DA SILVA LEDO, CNPGL; LEONARDO HENRIQUE FERREIRA CALSAVARA, EMATER; YAGO VIEIRA GUERRA VAROTTO, CES-JF.
Título: | HPPD-Inhibiting herbicides alone or in tank-mix with Atrazine in elephant grass.
Ano de publicação: | 2017
Fonte/Imprenta: | Journal of Agricultural Science, v. 9, n. 11, p. 234-241, 2017.
Idioma: | Inglês
Conteúdo: | The interference imposed by weeds is one of the most important factors limiting elephant grass forage yield. Two experiments were carried out in 2015/2016 and 2017 to evaluate the selectivity and weed control of 4-hydroxyphenylpyruvate dioxygenase (HPPD)-inhibiting herbicides applied alone or in combination with atrazine in elephant grass. The treatments applied in the experiment conducted in Valença, Rio de Janeiro State, Brazil, were as follows: two rates of mesotrione (0.072 and 0.144 kg ha-1 + 0.5% v/v mineral oil - Assist®), two rates of tembotrione (0.075 and 0.100 kg ha-1 + 0.5% v/v mineral oil - Aureo®), atrazine + mesotrione (1.25 + 0.072 kg ha-1 + 0.5% v/v mineral oil - Assist®), atrazine + tembotrione (1.25 + 0.100 kg ha-1 + 0.5% v/v mineral oil - Aureo®), atrazine + mesotrione (1.25 + 0.072 kg ha-1), atrazine + tembotrione (1.25 + 0.100 kg ha-1) and two checks (weed-free check and weedy check). The same herbicide treatments and a check without application were applied in an experiment conducted in Coronel Pacheco, Minas Gerais State, Brazil. Two application rates of mesotrione with the addition of mineral oil or the tank mixture of atrazine plus mesotrione, with or without the addition of mineral oil, did not provide injuries capable to reduce elephant grass forage yield. Tembotrione was phytotoxic to elephant grass when applied with mineral oil. Atrazine plus tembotrione in a tank-mix, with or without mineral oil, were also phytotoxic to elephant grass. All treatments provided satisfactory weed control.
Palavras-Chave: | Napier grass; Pasture; Pennisetum purpurem.
Thesaurus Nal: | forage; weeds.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/167324/1/Cnpgl-2017-JAgricultSci-HPPD.pdf
Registro original: | Embrapa Gado de Leite (CNPGL)
Exemplares: | CNPGL - (23714-1) - UPC - AP - DD -  -  -  - DIS