Data/hora: 22/09/2024 19:56:40

Biblioteca(s): 	Embrapa Agrobiologia.	
Data corrente: 	04/05/2016	
Data da última atualização: 	04/05/2016	
Autoria: 	RIBEIRO, E. C.; CARVALHO, D. F. de; SANTOS, L. A. de F.; GUERRA, J. G. M.	
Afiliação: 	EDUARDO CASTRO RIBEIRO, SIAGRO, TO; DANIEL FONSECA DE CARVALHO, UFRRJ; LUCAS ANTONIO DE FREITAS SANTOS, UFRRJ; JOSE GUILHERME MARINHO GUERRA, CNPAB.	
Título: 	Onion yield under agroecological farming system using distinct irrigation and soil covers.	
Título original: 	Produtividade de cebola em sistema de cultivo agroecológico sob distintas lâminas de irrigação e coberturas do solo	
Ano de publicação: 	2016	
Fonte/Imprenta: 	Ciência Rural, Santa Maria, v. 46, n. 5, p. 783-789, mar. 2016	
ISSN: 	1678-4596	
DOI: 	http://dx.doi.org/10.1590/0103-8478cr20150342	
Idioma: 	Inglês	
Conteúdo: 	The present study was carried out in order to evaluate the effects of irrigation depths applied through drip and presence/absence of soil cover in onion yield, under agroecological farming. The experiment was conducted in Seropédica, RJ, Brazil, from May to September 2012. The experimental design was a randomized complete block with split-plot design with 10 treatments and 7 replications, characterized by the presence (+S) and absence (-S) of soil cover and five irrigation depths according to percentages of the crop evapotranspiration (ETc): 0, 22, 45, 75 and 100% (0, 155, 220.6, 320.5 and 372,7mm in +S condition and 0, 145.5, 207.6, 285, 351,4mm in -S condition). The irrigation influenced by second-order polynomial regression the total yield of bulbs, percentage distribution of bulbs in diameter classes and water use efficiency (WUE) in the -S condition, and in the linear regression the WUE in +S condition. The soil cover promoted an increase on the total bulb yield, WUE and the percentage of bulbs classified in classes of greater diameter.	
Palavras-Chave: 	Allium cepa L; Organic agriculture.	
Thesaurus Nal: 	water use efficiency.	
Categoria do assunto: 	--	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/142777/1/Onion-yield-under-agroecological-farming-system-using.pdf	
Registro original: 	Embrapa Agrobiologia (CNPAB)	
Exemplares: 	CNPAB - (40199-1) - UPC - AP - PP - 2016.00056 -  - 2016.00056 - DIS