Data/hora: 01/06/2024 00:59:03

Biblioteca(s): | Embrapa Cerrados.
Data corrente: | 15/06/1997
Data da última atualização: | 15/06/1997
Autoria: | SANTOS, J. P.
Título: | Effects of s-trizianes + Alachlor applied early postemergence to corn.
Ano de publicação: | 1976
Fonte/Imprenta: | Raleigh: North Carolina State University, 1976.
Páginas: | 61p
Série: | M.Sc. Thesis.
Idioma: | Inglês
Conteúdo: | Studies were conducted at two locations in North Carolina to determine the effects on corn of certain s-triazine herbicides in combination with alachlor (2-chloro-2`,6`-diethyl-N-(methoxy-methyl) acetanilide)applied over the top of corn at different stages of crop growth. Atrazine (2-chloro-4-(e thylamino)-isopropylamino-s-triazine liquid (4 L) and wettable powder (80 W) formulations, cyanazine (2-(4-chloro-6-(e thylamino)-s-triazine-2-yl)amino-2methyl-propionitrile)(80 W), and procyazine(-(4-chloro-6-cyclopropylamino)-1,3,5-triazine-2-yl)amino)-2-methylpropionitrile) (80 W) were each tankmixed with alachlor and applied preemergence or postemergence at 2, 4, and 6-leaf stages of corn. Each combination was applied at 1.5+2.0 and 3.0+4.0 lb active ingredient/A....All plots had too early mechanical cultivations, and the untreate checks were hand-weeded when needed to eliminate weeds as a variable. Visual estimates were made on corn leaf injury. Corn height was measured several times after treatment and grain yield was computed. The studies were conducted on a sandy loam soil and a silt loam soil during 1975.  A split-plot design replicated four times was used with times of application (preemergence, 2,4, and 6-leaf stages of corn growth) as the whole plots and herbicide combinations as the subplats. Each plot was three rows by 55 ft long. Corn was not affected by the preemergence treatments, but foliar injury was observed at all stages of postemergence application. The injury (leaf burn) rached a maximum about one week ...
Palavras-Chave: | Agricultural chemicals; Growth; Maize; Productivity.
Thesagro: | Agrotóxico; Controle Químico; Crescimento; Defensivo; Herbicida; Milho; Produtividade; Zea Mays.
Thesaurus Nal: | chemical control; herbicides.
Categoria do assunto: | --
Registro original: | Embrapa Cerrados (CPAC)
Exemplares: | CPAC - (13734-1) - ADD - TS - -- - T004/76 -  - T004/76 - DIS