Atributos físicos de um nitossolo vermelho sob diferentes usos em Dois Vizinhos - PR
The improvement of physical soil is important because they establish relations with the rate of infiltration, run off, drainage, erosion, supply and storage of water, nutrients and oxygen in the soil. The study aimed to evaluate the physical quality of soils under different uses in the experimental...
| Autor principal: | Perin, Lucas Daniel |
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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/1/10993 |
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| Resumo: |
The improvement of physical soil is important because they establish relations with the rate of infiltration, run off, drainage, erosion, supply and storage of water, nutrients and oxygen in the soil. The study aimed to evaluate the physical quality of soils under different uses in the experimental area of UTFPR-DV. The experimental unit was composed of five treatments: Eucalyptus, Pinus, No-till System, Native Forest and Conventional Planting System. For variables density, total porosity, macroporosity and microporosity of soil was made a completely randomized design with two replications in a factorial 5 x 5 , 5 depths (0 – 0,05, 0,05 – 0,1, 0,1- 0,2, 0,2 – 0,3 and 0,3 to 0,4 m), and five land uses. To evaluate the water infiltration into the soil used the technique of double concentric rings in a completely randomized design with nine replicates. It was found that for the variable soil density the lowest values were observed in the Native Forest for all depths and higher for No-till System up to 0,2 m deep. The values of penetration resistance were considered among low and medium for all treatments. The total porosity Native Forest and the Eucalyptus showed the highest values, and 0.68 and 0.64 cm 3 cm-3 respectively. To macroporosity Native Forest remained with higher values in the depth 0,05 – 0,4 m. For microporosity observed for the lowest values Eucalyptus (0.36 cm3 cm-3 ) and Conventional Planting System (0.35 cm3 cm-3 ) the depth to 0 to 5 cm. The water infiltration rate in the soil was higher in the Eucalyptus with 205.64 cm h-1 and less for the Conventional Planting System and No-till System with 23.20 cm h-1 and 11.36 cm h -1. The same behavior was observed in infiltration with averages of 586.53 cm h-1 for the Eucalyptus and 72.57 cm h-1 and 41.81 cm h-1 for the Conventional Planting System and No-till System respectively. The Forest Native and the Eucalyptus showed the best physical qualities of the soil, followed by uses Conventional Tillage System, Pine and No-tillage System. |
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