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http://hdl.handle.net/1843/52086| Type: | Artigo de Periódico |
| Title: | Atributos físicos do solo sob diferentes usos da terra do Cerrado de Minas Gerais |
| Other Titles: | Physical attributes of the soil under different land uses in the Cerrado of Minas Gerais |
| Authors: | Daniela Aparecida Freitas Igor Costa de Freitas Leidivan Almeida Frazão Nayara Christina Almeida Araújo Leliane Raynne Duarte Silva Márcia Vitória Santos |
| Abstract: | O objetivo deste estudo foi avaliar os atributos físicos do solo apósa conversão de pastagem degradada em sistemas de integração Lavoura-Pecuária-Floresta (ILPF) e culturas forrageiras em Curvelo, Minas Gerais. Coletaram-se amostras nas profundidades de 0-5, 5-10, 10-20 e 20-30 cm. Os atributos avaliados foram densidade do solo (DS) e de partículas (DP), porosidade total (PT), diâmetro médio geométrico (DMG) e ponderado (DMP) e índice de estabilidade de agregados (IEA)em sete tratamentos: ILPF com cultivo de eucalipto consorciado com milho e capim-marandu (ILPF M), milho e java (ILPF J) e milho, marandu e java (ILPF J+M); monocultivo de capim-marandu (MAR) e java (JAVA); consórcio de marandu com java (J+M) e pastagem degradada (PAST). Os resultados foram submetidos à análise de variância e a diferença entre médias de tratamentos foi avaliada pelo teste de Tukey (p<0,05).O menor valorde DS foi observado no JAVA (0-5 cm) e o maior valor de PT no JAVA (0-5 cm). O maior DMP e DMG (10-20 cm) foi encontrado no PAST. Para DP e IEA não se encontraram diferenças significativas entre tratamentos e profundidades. |
| Abstract: | The objective of this study was to evaluate the physical attributes of the soil after the conversion of degraded pasture into integrated crop-livestock-forest systems (ICLF) and forage crops in Curvelo, Minas Gerais.Soil samples were collected from depths of 0-5, 5-10, 10-20, 20-30 cm. Theevaluated attributes were soil density (SD)and particlesdensity (PD), total porosity (TP), geometric mean diameter (GMD)and weighted meandiameter (WMD) and aggregate stability index (ASI) in seven treatments:ICLF withcultivation eucalyptus intercropped with corn and marandu grass (ICLF M), corn and java(ICLF J)and corn, marandu grass and java (ICLF J+M); monoculture of marandu grass (MAR) and java (JAVA); maranduconsortium with java (J+M)anddegraded pasture (PAST).The results were submitted to analysis of variance andstatistical significance of differences between treatment means were assessed by Tukey test (p <0.05).The lowest SDvalueswere observed in JAVA (0-5 cm) and the highest TP valuesin JAVA (0-5 cm). The highest GMDand WMD(10-20 cm) were found in PAST. For PD and ASIno significant differences were found between treatments and depths. |
| Subject: | Solos Pastagens Lavoura Pecuaria Florestas |
| language: | por |
| metadata.dc.publisher.country: | Brasil |
| Publisher: | Universidade Federal de Minas Gerais |
| Publisher Initials: | UFMG |
| metadata.dc.publisher.department: | ICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS |
| Rights: | Acesso Aberto |
| URI: | http://hdl.handle.net/1843/52086 |
| Issue Date: | 2020 |
| metadata.dc.url.externa: | https://ojs.brazilianjournals.com.br/ojs/index.php/BJAER/article/view/20438/16351 |
| metadata.dc.relation.ispartof: | Brazilian Journal of Animal and Environmental Research |
| Appears in Collections: | Artigo de Periódico |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Atributos físicos do solo sob diferentes usos da terra do Cerrado de Minas Gerais_Leidivan Almeida Frazão.pdf | 464.48 kB | Adobe PDF | View/Open |
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