Data/hora: 09/06/2024 20:59:36

Biblioteca(s): | Embrapa Cerrados; Embrapa Soja.
Data corrente: | 16/07/1998
Data da última atualização: | 01/06/2006
Autoria: | VAL, W. M. da C.
Afiliação: | EMBRAPA-CNPSo. Londrina, PR.
Título: | Effect of method of weed control and row spacing on yield of soybeans Glycine max (L.) Merril).
Ano de publicação: | 1978
Fonte/Imprenta: | [S.l.]: Purdue University, 1978.
Páginas: | 104p.
Idioma: | Inglês
Notas: | Ph.D. Thesis.
Conteúdo: | Field trials were established in 1976-78 period to study the influence of cultural methods on soybean (Glycine max (L.) Merrill) grain yield. The treatments included two planting dates, four row spacings, one with cultivation, three periods of handweeding and two herbicide treatments: a preplant incorporated mixture of trifluralin [a,a,a-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine] and metribuzin [4-amino-6-ter-butyl-3-(methylthio)-as-trizin-5(4H)-one], followed by a postemergence treatment of bentazon [3-isopropyl-1H-2,1,3-benzenoathiadiazin-(4)3H-one, 2,2-dioxide]. 1X and 3X multiples of field rates were applied. A handweeded treatment handthinned to exact population was included to permit comparison with the 3X herbicide treatment. Stand reduction, weed  population, and yield were evaluated. No statistically significant response was obtained from the early and late planting dates. Crop response varied with type of row spacing. The narrowest row spacing and handweeded for 5-6 weeks gave the highest yields. The 3X herbicide rate caused injury to soybean plants and reduced stand of healthy plants. The IX herbicide did not cause injury for any row spacing treatment with the narrowest row spacing preferred. Cultivation was beneficial in the wet years.
Palavras-Chave: | Controle de planta daninha; EUA; Planta daninha; Soybean; Spacing; USA; Yield.
Thesagro: | Espaçamento; Glycine Max; Rendimento; Rentabilidade; Soja.
Thesaurus Nal: | weed control.
Categoria do assunto: | --
Registro original: | Embrapa Soja (CNPSO)

Exemplares:

CNPSO - (1175-1) - UPC - TS - -- - 49/78 -  - 49/78 - DIS
CPAC - (22694-1) - ADD - TS - -- - T103/78 - VAL - T103/78 - DIS