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| Bertol,Ildegardis; Luciano,Rodrigo Vieira; Bertol,Camilo; Bagio,Bárbara. |
| ABSTRACT Soil erosion from water causes loss of nutrients and organic carbon, enriches the environment outside the erosion site, and results in costs. The no-tillage system generates increased nutrient and C content in the topsoil and, although it controls erosion, it can produce a more enriched runoff than in the conventional tillage system. This study was conducted in a Humic Cambisol in natural rainfall from 1997 to 2012 to quantify the contents and total losses of nutrients and organic C in soil runoff, and to calculate the enrichment rates and the cost of these losses. The treatments evaluated were: a) soil with a crop, consisting of conventional tillage with one plowing + two harrowings (CT), minimum tillage with one chisel plowing + one harrowing... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil erosion; Soil and water losses; Nutrient losses; Cost of erosion. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832017000100506 |
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| Bertol,Ildegardis; Bertol,Camilo; Barbosa,Fabrício Tondello. |
| O uso de simuladores de chuva é fundamental em estudos de erosão hídrica pluvial. Com eles é possível controlar as condições experimentais, principalmente as características da chuva, e compreender melhor o processo erosivo do solo. Vários tipos de simulador de chuva foram desenvolvidos desde 1930 no mundo. Atualmente, o tipo Swanson é o mais utilizado. No entanto, um pequeno número desses simuladores está em pleno funcionamento no Brasil, devido ao alto grau de desgaste e às dificuldades de manutenção. O objetivo deste trabalho foi desenvolver um novo modelo de simulador de chuva, construído predominantemente em alumínio, desprovido de motor para rotação dos braços e movido hidraulicamente por empuxo. O simulador de chuva movido hidraulicamente por empuxo... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Erosão hídrica; Chuva simulada; Energia da água. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000600024 |
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| Bandeira,Douglas H.; Bertol,Ildegardis; Vázquez,Eva V.; Ramos,Júlio C.; Bertol,Camilo. |
| ABSTRACT Water erosion in soil is influenced by several factors, including rain, relief, cover, and management and conservation practices. Also, erosion is affected by pig slurry (PS) applied to the soil as a fertilizer. The objectives of this research were i): to evaluate water erosion in a Humic Cambisol cultivated with Zea mays L., Avena strigosa, Glycyne max L., and Raphanus sativus in rotation after PS dispersal under different tillage treatments, namely: no-tillage (NT), minimum tillage (MT), rotation tillage (RT) and conventional tillage (CT) , and ii): to compare erosion before and after PS application in a single dose of 50 m3 ha-1 in each crop, soon after the germination of the crops. NT had lower soil and water loss, which were reduced by 81 and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conservation tillage; Erosivity; Crop rotation; Organic fertilization. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000600425 |
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