Data/hora: 13/06/2024 08:13:25

Provedor de dados: | 124
País: | Brazil
Título: | Nutritional status of the potted chrysanthemum relative to electrical conductivity and salt leaching
Autores: | Beckmann-Cavalcante,Márkilla Zunete; Pivetta,Kathia Fernandes Lopes; Cavalcante,Ítalo Herbert Lucena; Cavalcante,Lourival Ferreira; Silva Júnior,José Valdenor da.
Data: | 2013-12-01
Ano: | 2013
Palavras-chave: | Dendranthema grandiflora Tzvelev; Substrate; Plant nutrition.
Resumo: | The quality of ornamental plants grown in pots is highly dependent on fertilization and substrate management. To this effect, we carried out an experiment in a protected environment to evaluate the nutritional status of the chrysanthemum cv. Miramar grown in pots, relative to the electrical conductivity of the nutrient solution and the leaching of salts. The experimental design was of randomized blocks with four replications and the treatments arranged in a 5 x 2 factorial, relating to the levels of electrical conductivity of the nutrient solution (ECs = 2.1; 2.8; 3.5; 4.2 and 4.9 dS m-1) in substrates without (SNL) and with (SWL) washing for the leaching of salts. The nutritional status of the plants was evaluated by leaf analysis of macronutrients (N, P, K, Ca, Mg and S) and micronutrients (Cu, Fe, Mn and Zn). The increase in ECs inhibited the accumulation of micronutrients and of nitrogen, but stimulated the levels of P, K, Ca, Mg and S in the leaf dry mass of the chrysanthemum. The leaching of salts increased the concentration Cu, Fe and Mn in the plant leaves. Among the macronutrients, with the except of calcium and sulphur, no significant difference was observed for N, P, K and Mg relative to the leaching of salts.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902013000400015
Editor: | Universidade Federal do Ceará
Relação: | 10.1590/S1806-66902013000400015
Formato: | text/html
Fonte: | Revista Ciência Agronômica  v.44 n.4 2013
Fonte: | info:eu-repo/semantics/openAccess