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| Guimarães,Lorena Abdalla de Oliveira Prata; Dias,Luiz Eduardo; Rocha,Genelício Crusoé; Assis,Igor Rodrigues de; Fernandes,Raphael Bragança Alves. |
| ABSTRACT Tailings from bauxite washing produced in Porto Trombetas, Pará state, a Brazilian Amazon region, have chemical and physical characteristics limiting the development of plants, which hinders to revegetate the tanks where they are deposited. This study was carried out under field conditions, and aimed to assess the physical quality of these tailings after a decade of recovery practices. Three treatments were assessed: no application of inputs and planting of seedlings (T1) and two levels of fertilization, one with lower (T2) and other with higher (T3) doses of limestone and fertilizers associated with planting tree seedlings. After ten years of experimentation, penetration resistance (PR) and substrate moisture up to 60 cm depth were assessed and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Revegetation; Mining; Natural regeneration.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000200192 |
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| Souza,Gustavo Soares de; Alves,Danielle Inácio; Dan,Maurício Lima; Lima,Julião Soares de Souza; Fonseca,Abner Luiz Castelão Campos da; Araújo,João Batista Silva; Guimarães,Lorena Abdalla de Oliveira Prata. |
| Abstract: The objective of this work was to evaluate the cultivation effects of organic conilon coffee (Coffea canephora) intercropped with tree and fruit species on soil physico-hydraulic properties. Conilon coffee managements in the organic system were: T1, full-sun monoculture; T2, T3, T4, and T5, intercropping with peach palm (Bactris gasipae), gliricidia (Gliricidia sepium), banana (Musa sp.), and inga (Inga edulis), respectively; and T6, an area of secondary native forest used as a control. The evaluated soil physico-hydraulic properties were: bulk density, porosity, plant-available water capacity, soil-penetration resistance, soil-water content, soil temperature, and least limiting water range. Conilon coffee intercropped with peach palm and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bactris gasipae; Coffea canephora; Gliricidia sepium; Climatic vulnerability; Shade trees; Shaded coffee.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000700539 |
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