Data/hora: 20/06/2024 20:26:30

Biblioteca(s): 	Embrapa Soja.	
Data corrente: 	05/05/1993	
Data da última atualização: 	25/08/2004	
Autoria: 	STUDT, D. M.; FAWCET, R. S.; NELSON, J. E.	
Título: 	Eastern black nightshade control in soybeans.	
Ano de publicação: 	1981	
Fonte/Imprenta: 	In: NORTH CENTRAL WEED CONTROL CONFERENCE, 1981, Des Moines. Proceedings... Des Moines, 1981.	
Volume: 	v.36	
Páginas: 	p.92-94.	
Idioma: 	Inglês	
Conteúdo: 	Satisfactory late-season control was difficult to achieve due to the periodic germination of eastern black night-shade. Nightshade seedlings were first observed on July 9, and small seedlings were found as late as August 26. Many treatments that provided good early-season control failed after hail opened the soybean canopy and allowed weed germination. Lower rates of the soil herbicides had probably dissipated by that time. Late-season germination and growth of eastern black nightshade is critical, since this weed prevents the efficient harvest of soybeans. Either high rates of effective soil herbicides such as alachlor or metolachlor are needed, and/or the timely application of an effective postemergence treatment such as acifluorfen. The postemergence herbi-cide must be timed to the weed stage and may have to be applied more than once to coincide with late germination flushes.	
Palavras-Chave: 	EUA; Planta daninha; Soybean; USA; Weed.	
Thesagro: 	Soja.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Soja (CNPSO)	
Exemplares: 	CNPSO - (11139-1) - ADC - PL - -- - 632.58 - N864p -  - DIS