SciELO - Scientific Electronic Library Online

 
vol.22 número12Desenvolvimento da soja RR em função de doses de glifosato e da inoculação com BradyrhizobiumÍndice de estresse pupilar: Um novo índice de conforto térmico para caprinos mestiços índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Revista Brasileira de Engenharia Agrícola e Ambiental

versão impressa ISSN 1415-4366versão On-line ISSN 1807-1929

Resumo

OLIVEIRA, Marcelo S. de et al. Production of cut sunflower under water volumes and substrates with coconut fiber. Rev. bras. eng. agríc. ambient. [online]. 2018, vol.22, n.12, pp.859-865. ISSN 1807-1929.  https://doi.org/10.1590/1807-1929/agriambi.v22n12p859-865.

This study aimed to evaluate the production of cut sunflower in response to different water volumes and substrates, composed of soil and coconut fiber. Two simultaneous experiments were conducted in greenhouse, located in the Horticulture Sector of the Federal Rural University of Rio de Janeiro (UFRRJ), Seropédica - RJ, Brazil (22º 48’ S, 43º 41’ W and altitude of 33 m), between April and June 2016. Water was applied by an Simplified Irrigation Controller (SIC), allowing the application of different volumes (33, 67 and 133% of retention capacity of substrate) in comparison to the control treatment (100%). The substrates used were 1/3 of coconut fiber and 2/3 of soil (v/v) (Experiment 1), and 2/3 of coconut fiber and 1/3 of soil (Experiment 2). The experimental design was completely randomized, with 5 replicates. The treatment with 100% of the volume applied by the SIC led to best growth of sunflower, increasing the potential income obtained with stems at better marketing standard according to the prices practiced.

Palavras-chave : Helianthus annuus L.; irrigation water management; ornamental plant.

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