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- Title
Doses de potássio e lâminas de irrigação na qualidade de mudas de eucalipto.
- Authors
Cordeiro RAMALHO, Antonio Henrique; MAFFIOLETTI, Fernanda Dalfior; TRAZZI, Paulo André; Cordeiro RAMALHO, Eduardo; Cesar FIEDLER, Nilton
- Abstract
Forest productivity depends on the genetic potential of the matrices, the environment proposed by the substrates, frequency of irrigation, availability of light, nutrition and phytosanitary conditions. Thus, the aim of this study was to analyze the effects of potassium and irrigation on the quality of Eucalyptus urophylla seedlings. For this purpose, the experimental design was adopted in subdivided plots, defining the 2 layers of irrigation (10 mm and 15 mm) as plots and the 5 levels of potassium (0; 1.2; 2.4; 4.8; and 9.6 g L-1) as subplots, in 5 repetitions composed of 8 plants. The comparison between the methods was made using the Tukey test with a 5% probability. At 120 days, the following were evaluated: height of the aerial part, diameter of the neck, dry mass of the aerial part and the root. The control treatment showed the best averages in all parameters, being considered the most efficient. The 15 mm irrigation blade was considered the most efficient. Therefore, it is concluded that whatever the potassium increase in the production of seedlings, it must be harmoniously related to the pre-existing quantity in the base substrate and to the requirements of the culture, so that there is balance between all parts.
- Publication
Nativa, 2020, Vol 8, Issue 5, p643
- ISSN
2318-7670
- Publication type
Article
- DOI
10.31413/nativa.v8i5.10146