2010
DOI: 10.1590/s0100-06832010000200018
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Rugosidade da superfície do solo sob diferentes sistemas de manejo e influenciada por chuva artificial

Abstract: RESUMOA rugosidade da superfície do solo é influenciada pelo manejo, formada em especial pelo tipo de preparo e reduzida pela ação da chuva, principalmente. O objetivo deste estudo foi avaliar a influência de diferentes sistemas de manejo do solo e da aplicação de chuva artificial na rugosidade da superfície do solo. Os tratamentos estudados resultaram da combinação de três sistemas de manejo do solo, semeadura direta (SD), preparo convencional (PC) e cultivo mínimo (CM), com três doses de resíduo vegetal seco… Show more

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Cited by 18 publications
(16 citation statements)
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References 21 publications
(24 reference statements)
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“…The exponential model obtained a good fit to the soil surface roughness values, which were altered by the energy transferred from the impact of raindrops, with high coefficients of determination (Figures 1 and 2), just as observed by Bertol et al (2006), Panachuki et al (2010), and Correa et al (2012), who explained this fact by the greater effect of the first rains on soil roughness, considering the time after soil tillage. In the oat crop under no-tillage (Figure 1a), in the absence of soil cover, the decay coefficient was greater than with plant residue cover, and at the level of 1.0 Mg ha -1 , soil roughness was not altered by rain activity.…”
Section: Effect Of Rain On Surface Roughnesssupporting
confidence: 74%
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“…The exponential model obtained a good fit to the soil surface roughness values, which were altered by the energy transferred from the impact of raindrops, with high coefficients of determination (Figures 1 and 2), just as observed by Bertol et al (2006), Panachuki et al (2010), and Correa et al (2012), who explained this fact by the greater effect of the first rains on soil roughness, considering the time after soil tillage. In the oat crop under no-tillage (Figure 1a), in the absence of soil cover, the decay coefficient was greater than with plant residue cover, and at the level of 1.0 Mg ha -1 , soil roughness was not altered by rain activity.…”
Section: Effect Of Rain On Surface Roughnesssupporting
confidence: 74%
“…These relations show that no tillage is the most effective system in maintaining soil roughness, especially under conditions of greater percentage of soil cover (Table 1). Guzha (2004), after applying the same amount of rain as in this study, found relations of 0.78 in no tillage, 0.34 in conventional tillage, and 0.57 in minimum tillage, whereas Panachuki et al (2010), under the soybean crop, obtained values of 0.70, 0.65, and 0.60 for relations of these variables in the same soil management systems.…”
Section: Effect Of Rain On Surface Roughnesssupporting
confidence: 64%
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“…A rugosidade da superfície do solo foi estimada com uso do rugosímetro de varetas, acoplado a uma máquina fotográfica digital, conforme descrito por Panachuki et al (2010). O equipamento é constituído de 20 varetas de alumínio, alinhadas e distanciadas 30 mm entre si, que foram deslocadas no sentido do aclive, tendo ocupado 20 posições em cada parcela.…”
Section: Methodsunclassified