Cinza vegetal e umidade do solo no cultivo do gladíolo

• Autor(a) principal: Pereira, Marcel Thomas Job
• Data de Publicação: 2014
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da UFMT
• Texto Completo: http://ri.ufmt.br/handle/1/1091
• topic: Manejo de irrigação; Plantas ornamentais; Resíduo sólido na agricultura; CNPQ::CIENCIAS AGRARIAS::ENGENHARIA AGRICOLA; Irrigation management; Ornamental plants; Solid waste in agriculture

The fertilizer management through the use of residue from the plant material burns, associated with irrigation management has demonstrated a sustainable strategy to increase production of ornamental plants in the greenhouse. The objective was to evaluate the development of gladiolus submitted to doses of wood ash and water soil contents in Cerrado Oxisol. The experiment was conducted under controlled conditions, from April to September 2014, the Federal University of Mato Grosso, Campus Rondonopolis. The experimental design was randomized blocks, arranged in factorial 5x5, totaling 25 treatments with four replications. The treatments consisted of five doses of wood ash (0, 8, 16, 24 and 32 g dm-3) and five volumetric soil moisture (7, 14, 21, 28, and 35%). The irrigation management was carried out with the use of portable probe Diviner 2000. The species used was Gladiolus x grandiflorus L., cultivar White Friendship. Were evaluated: plant height, number of leaves, chlorophyll index (SPAD reading), dry weight of shoot and root, floral spike and floral stem length, flower diameter, flower number, number of days to flowering, diameter and weight corm and number of cormilhos. The results were analyzed in response surface through the use of "Statistical Analysis System". Observed was quadratic response for flower diameter (11.61 g dm-3); Flower number (11.64 g dm-3); number of days to flowering (8 g dm-3). For the growth of gladiolus (height, number of leaves and dry weight of shoots), the ideal moisture range was between 26 to 29%; for flower production (floral spike length and floral stem, and flower number), in the range of 31 to 34%; to produce corms in moisture of 28%. The best results for chlorophyll index and stem length and floral spike, weight and corms diameter depend on the combination of vegetable ash doses of soil moisture at appropriate levels. The doses wood ash increases the pH and water retention capacity of the soil. The moisture near field capacity provided the best results of production and development of Gladiolus White Friendship in Oxisol of the Cerrado.