Desenvolvimento de Peltophorum dubium (Sprengel) Taubert em sistema silvipastoril destinado ao pastejo de ovinos no município de Dois Vizinhos - PR
The canafístula is a timber and promising in silvopastoral systems native species, since its use maintains the concept of knowing and employing the potential of native species, exposing more alternative forms of integration. The increased productivity of species as canafístula can be done through th...
| Autor principal: | Santos, Marcielli Aparecida Borges dos |
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| Formato: | Trabalho de Conclusão de Curso (Graduação) |
| Idioma: | Português |
| Publicado em: |
Universidade Tecnológica Federal do Paraná
2020
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| Assuntos: | |
| Acesso em linha: |
http://repositorio.utfpr.edu.br/jspui/handle/1/10819 |
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| Resumo: |
The canafístula is a timber and promising in silvopastoral systems native species, since its use maintains the concept of knowing and employing the potential of native species, exposing more alternative forms of integration. The increased productivity of species as canafístula can be done through the use of mineral fertilizer. The aim of this study was to assess the initial development of the species Peltophorum dubium (canafístula) in a silvopastoral system in response to different levels of mineral fertilization in Dois Vizinhos - PR. The implantation site features area 2160 m², where it was possible to allocate 4 double lines within 10 meters and spacing of 2,0 x 1,5 m in these lines. 176 seedlings were planted, with the use of hydrogel, and holes were made with use of motocoveador. The ant control we used granular baits and spraying the seedlings with liquid ant-based fipronil. Controlling weed competition was performed by the capping and when necessary with the application of glyphosate herbicide. The NPK fertilization was based on analysis of local soil, and was tested at four different levels: T0 (no fertilizer), T1 (33-22-9), T2 (66-44-18) and T3 (99-66 -27). These four levels of fertilization were the treatments evaluated in this study. Monthly measurements of stem diameter (Dc), height (H) and crown area (Ac) and evaluation of the effect of the settlement were made. All data on input costs, labor and machinery were noted for subsequent quantification of initial costs of implementing the system. The settlement was deployed three times to succeed. The first planting with seedlings 15-20 cm tall suffered severe and repeated attacks of leaf-cutting ants, which caused his loss. In the second planting seedlings, also 15-20 cm tall, did not survive due to low rainfall after its implementation. Because of this the third planting was done using seedlings of 1,5 to 2,0 meters tall, which only occurred in June 2014, which allowed only two qualitative and quantitative assessments. The Dc and H variables showed good increments, although the analysis of variance has not pointed to significant differences between treatments (fertilization levels), probably by the short evaluation period and the fact that the seedlings are in the process of establishment of the root system. The Ac variable showed decline during the study period, due to the falling of the leaves caused by water stress after planting. Most seedlings presented with vigorosidade medium to high regardless of treatment. The implementation cost of this silvopastoral system was R$ 32,14 per seedling. |
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