SciELO - Scientific Electronic Library Online

 
vol.33 número5Produção de seis gramíneas manejadas por corte sob efeito de diferentes lâminas de irrigação e estações anuaisProgênies de Coffea arabica cv. IPR 100 com resistência ao nematóide Meloidogyne incognita raça 1 índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Ciência e Agrotecnologia

versão impressa ISSN 1413-7054versão On-line ISSN 1981-1829

Resumo

RESENDE, Geraldo Milanez de  e  COSTA, Nivaldo Duarte. Yield and storage of onion (Allium cepa L.) submitted to nitrogen and potassium levels through fertirrigation in summer planting. Ciênc. agrotec. [online]. 2009, vol.33, n.5, pp.1314-1320. ISSN 1413-7054.  https://doi.org/10.1590/S1413-70542009000500017.

This study was carried out from August 2001 to March 2002 to evaluate the influence of nitrogen (N) and potassium (K) levels through fertirrigation on yield and post-harvest storage of onion bulbs. Cultivar Alfa Tropical was used in a randomized complete block design, in a 4 x 3 factorial arrangement, with four nitrogen levels (0, 60, 120, and 180 kg/ha) and three potassium levels (0, 90, and 180 kg/ha K2O) with three replications. The commercial yield showed linear effect in the doses of 90 kg/ha K2O and quadratic effect in the absence of potassium fertilization, with maximum yield with the level of 96.5 kg/ha nitrogen and minimum yield with the level of 136.5 kg/ha nitrogen with the dose of 180 kg/ha K2O. The increment of the levels of N reduced the non-commercial yield (culls) in a linear way. Linear effects were observed with the increase of N doses for bulb fresh mass. There were no significant effects at 40 days of curing for mass loss, however, at 80 days of curing, significant effect was evidenced with the application of N and K.

Palavras-chave : Allium cepa; yield; nutrition; post-harvest conservation.

        · resumo em Português     · texto em Português     · Português ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons