Cultivo de crisântemo sob adubação mineral, cinza vegetal e organomineral associado à calagem
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Data
2022-02-18
Autores
Meneghetti, Luana Aparecida Menegaz
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Universidade Federal de Mato Grosso
Resumo
The production of ornamental flowers in Brazil is an activity of great economic
importance in the country. For the vigorous development of flowers, it’s necessary to properly
manage soil fertility. The objective was to evaluate different types of fertilization under two
levels of liming in the development and production of potted chrysanthemum in Oxisol,
cultivated in a greenhouse. The experiment was carried out at the Federal University of
Rondonópolis, in a greenhouse of the Postgraduate Program in Agricultural Engineering. The
experimental design was in randomized blocks, with a 5x2 factorial scheme, with five types
of fertilization (incubated wood ash, non-incubated wood ash, organomineral (50% mineral
fertilizer and 50% wood ash), mineral fertilizer and control) and two types of liming (with
liming and without liming), with five replicates, totaling 50 experimental units (UEs). The
soil used in the experiment was the Oxisol and the chrysanthemum cultivar used was the
white Singelo. The variables analyzed are plant height, number of leaves, leaf area, root
volume, dry mass of roots, chlorophyll index, water use efficiency, total water consumption
and soil chemical characteristics (pH, macronutrients and micronutrients). The data were
submitted to analysis of variance by the F test, and when significant they were submitted to
the Tukey test at 5% probability. The SISVAR software was used to perform the statistical
analysis. The productive and phytometric variables were significant only for fertilization in
isolation, except for plant height, which was significant for factor liming and fertilization in
isolation. There was interaction between the factors in pH. All chemical characteristics and
macronutrients were statistically significant for the types of fertilization and liming, except for
sulfur, which was significant only for types of fertilization. There was interaction between the
factors in the variables aluminum (Al), magnesium (Mg) and base saturation (V%). Regarding
micronutrients, except for iron, treatments with liming and fertilizers with wood ash in their
composition provided a higher content of these nutrients in the soil. Wood ash reduces the
dependence on liming and mineral fertilizer in potted chrysanthemum plants. Organomineral
fertilizer is an alternative for reducing the volume of wood ash and the use of mineral
fertilizer. Wood ash is an alternative fertilizer for growing potted chrysanthemum.
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MENEGHETTI, Luana Aparecida Menegaz. Cultivo de crisântemo sob adubação mineral, cinza vegetal e organomineral associado à calagem. 2022. 103 f. Dissertação (Mestrado em Engenharia Agrícola) - Universidade Federal de Mato Grosso, Instituto de Ciências Agrárias e Tecnológicas, Rondonópolis, 2022.