Cinza vegetal e umidade do solo no cultivo do gladíolo
Data
2014-12-04
Autores
Pereira, Marcel Thomas Job
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Universidade Federal de Mato Grosso
Resumo
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.
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Citação
PEREIRA, Marcel Thomas Job. Cinza vegetal e umidade do solo no cultivo do gladíolo. 2014. 86 f. Dissertação (Mestrado em Engenharia Agrícola) - Universidade Federal de Mato Grosso, Instituto de Ciências Agrárias e Tecnológicas, Rondonópolis, 2014.