Resumo

MILPA-MEJIA, Silvia; GONZALEZ-CASTELLANOS, Anacleto; GRENON-CASCALES, Graciela N  e  VAZQUEZ-GARCIA, Luis Miguel. Pot culture of Iris xiphium (Holland Iris) with different concentrations of earthworm humus and their lixiviates. Rev. Fac. Cienc. Agrar., Univ. Nac. Cuyo [online]. 2012, vol.44, n.2, pp.109-117. ISSN 1853-8665.

Growth in pots of three varieties of Iris xiphium was evaluated in four proportions of earthworm humus and diluted lixiviate used as foliar organic fertilizer. The experiment was conducted in a completely randomized three factorial design where the following variables were measured: stem length (SL), bud length (BL), flower (FL), bud diameter (BD), flower diameter (FD), biomass (B), leaf area (LA) and days to harvest (HD). The results showed that the 'Telstar' range turned out to be the earlier. The best treatment in the range 'Telstar' for variables SL, BL, B, FD and HD corresponded to the proportion 30% of earthworm along with the 1:10 dilution of lixiviate the second best treatment was in the Discovery range with 40% of earthworm and 1:10 dilution of lixiviate for variables LT, AF and B. In regards the proportions of used earthworm the best results were obtained in the proportions 30 and 40% with the use of the 1:10 dilution lixiviate. The present study provides new information on the use of organic substrates and foliar fertilizer for sustainable, low environmental impact, flower crops.

Palavras-chave : Substrate; Bulbs; Organic fertilizers; Lombrihumus; Containers-grown plants.

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