Sabiia Seb
        Busca avançada

Botão Atualizar

Botão Atualizar

Registro completo
Provedor de dados:  AGRIAMBI
País:  Brazil
Título:  Carrot yield and water-use efficiency under different mulching, organic fertilization and irrigation levels
Autores:  Carvalho,Daniel F. de
Gomes,Daniela P.
Oliveira Neto,Dionizio H. de
Guerra,José G. M.
Rouws,Janaína R. C.
Oliveira,Fábio L. de
Data:  2018-07-01
Ano:  2018
Palavras-chave:  Irrigation management
Gliricidia sepium
Castor bean cake
Daucus carota L.
Organic agriculture
Resumo:  ABSTRACT This study was carried out to evaluate the contributions to the optimization of water use in a carrot crop under different forms of mulch using Gliricidia sepium, fertilization with castor bean cakes and irrigation water depths. The experiment was conducted in Seropédica, RJ, Brazil (22º 46’ S and 43º 41’ W), from June to September 2010. The experiment was conducted using a split-split-plot scheme (5 x 3 x 2), with four replicates. The five plots had irrigation depths corresponding to 0, 43, 72, 100 and 120% of crop evapotranspiration (ETc); the three subplots contained the different forms of mulch (whole leaves (WL) and chopped leaves and branches (CLB)) and the absence of mulch (AM); and the two sub-subplots contained either the presence (PF) or absence of fertilization (AF). Using time domain reflectometry (TDR) in the irrigation management, water depths ranging from 67.8 to 285.5 mm were applied. The use of mulch in association with fertilization led to higher yields and water-use efficiency (WUE) of the carrot plants, and the mulch composed of WL performed best. The application of irrigation depths corresponding to 97% of ETc promoted the highest carrot yields, although the highest values of WUE were observed, with irrigation depths corresponding to a range from 51 to 68% of ETc.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Editor:  Departamento de Engenharia Agrícola - UFCG
Relação:  10.1590/1807-1929/agriambi.v22n7p445-450
Formato:  text/html
Fonte:  Revista Brasileira de Engenharia Agrícola e Ambiental v.22 n.7 2018
Direitos:  info:eu-repo/semantics/openAccess

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC:

Valid HTML 4.01 Transitional