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| López Blancas, Sergio. |
| En la recuperación de suelos salino-sódicos con aplicación de S y establecimiento de cultivos tolerantes, los nitratos pueden lixiviarse en el perfil del suelo o acumularse en el tejido vegetal. Esto podría reducirse mediante la promoción de la oxidación del S aplicado, ya que con ello se favorece la desnitrificación y la absorción de sulfatos por los cultivos, limitando la acumulación de nitratos en el suelo y en las plantas, respectivamente. El objetivo del presente trabajo fue determinar el efecto del S en: la lixiviación de nitratos en el perfil del suelo, la concentración de S, nitratos y micronutrimentos del tejido vegetal, la fertilidad del suelo y el rendimiento de especies forrajeras en un suelo salino-sódico. Se establecieron parcelas con... |
| Tipo: Tesis |
Palavras-chave: Lixiviación; Sulfatos; Recuperación de suelos; Maestría; Edafología; Leaching; Sulfates; Soil recovery. |
| Ano: 2009 |
URL: http://hdl.handle.net/10521/1550 |
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| Novoa M,Daniela; Palma S,Soledad; Gaete O,Hernán. |
| Soils near mining centers usually have high heavy metal (HM) levels. It has been found that some plants associated with arbuscular mycorrhizal fungi (AMF) improve growth and tolerance to HM in soils. This symbiosis is a biological resource for degraded soil recovery. The objective of this study was to determine the effect of inoculating AMF (Glomus spp.) on alfalfa (Medicago sativa L.) growth in agricultural soils with different copper (Cu) levels for degraded soil recovery. To this effect, alfalfa seeds were grown in soils from the Catemu and Casablanca valleys and inoculated with AMF. Plant height, stem diameter, and number of leaves were measured weekly. Dry matter, mycorrhizal colonization, and Cu concentration in alfalfa plant tissues were measured... |
| Tipo: Journal article |
Palavras-chave: Mycorrhizal colonization; Soil recovery. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392010000200009 |
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| Barros,Dalmo Arantes de; Pereira,José Aldo Alves; Ferreira,Mozart Martins; Silva,Bruno Montoani; Ferreira Filho,Diógenes; Nascimento,Gleisson de Oliveira. |
| Mining contributes to the life quality of contemporary society, but can generate significant impacts, these being mitigated due to environmental controls adopted. This study aimed to characterize soil physical properties in high-altitude areas affected by bauxite mining, and to edaphic factors responses to restoration techniques used to recover mined areas in Poços de Caldas plateau, MG, Brazil. The experiment used 3 randomized block design involving within 2 treatments (before mining intervention and after environmental recovery), and 4 replicates (N=24). In each treatment, soil samples with deformed structures were determined: granulometry, water-dispersible clay content, flocculation index, particle density, stoniness level, water aggregate stability,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environmental recovery; Physical soil quality; Soil recovery. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000500005 |
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