Data/hora: 03/06/2024 10:49:24

Provedor de dados: | 75
País: | Brazil
Título: | Broccoli production depending on the seed production system and organic and mineral fertilizer
Autores: | Lopes,José Carlos; Mauri,Janaína; Ferreira,Adésio; Alexandre,Rodrigo S; Freitas,Allan R de.
Data: | 2012-03-01
Ano: | 2012
Palavras-chave: | Brassica oleracea var. italica; Emergence; Productivity; Plant nutrition; Substrate.
Resumo: | The experiment was conducted in a greenhouse at the Universidade Federal do Espirito Santo, in Alegre, Espirito Santo state, Brazil, to evaluate the broccoli production depending on the seed production system and organic and mineral fertilization. Seeds of the broccoli cultivar Ramoso Piracicaba were originated from lots of seed obtained in an organic and conventional production system. The experimental design was of randomized blocks, with four replications in a factorial arrangement combination of the lots, 2x5 (organic and mineral fertilized seeds) and substrates [S1 (soil + sand + manure), S2 (soil + sand + manure + NPK), S3 (soil + sand + manure + Fertium® 10 g L-1), S4 (soil + sand + manure + Fertium® 30 g L-1) and S5 (soil + sand + manure + Fertium® 50 g L-1]. The analyzed variables were emergency, fresh and dry mass of aerial part, emergency speed and height of seedlings after 28 days of sowing, and plant diameter, leaf area, number of leaves, fresh and dry mass of aerial part, plant height, root volume, fresh and dry root mass, absolute and relative growth rates and increment to leaf area and plant height after 104 days. The emergency was similar in the different substrates; great vigor occurred on conventional seeds; the mineral fertilization increased the production of fresh mass of aerial part; the use of substrate containing soil, sand soil conditioner Fertium (30 to 50 g L-1) increased the volume, fresh and dry mass of roots and rate of increase in these variables.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362012000100024
Editor: | Associação Brasileira de Horticultura
Relação: | 10.1590/S0102-05362012000100024
Formato: | text/html
Fonte: | Horticultura Brasileira  v.30 n.1 2012
Fonte: | info:eu-repo/semantics/openAccess