Hydraulic conductivity of Molisolls irrigated with sodic-bicarbonated waters in Santa Fe (Argentine)

Soil physical quality of Mollisols quantified by a global index

“…Physical quality degradation in these soils exacerbates these problems as evidenced in Argiudolls and Hapludolls irrigated with sodic-bicarbonated waters and in Argiudolls when conventional tillage or no-till systems were applied without the inclusion of adequate rotations (Pilatti et al, 2006;Ghiberto et al, 2007;Imhoff et al, 2010 …”

Porosity characterization of Argiudolls under different management systems in the Argentine Flat Pampa

“…Similar work has been conducted in Argentina (Weinzettel and Usunoff, 2001;Ghiberto et al, 2007). Aparicio and Costa (2007) found a clear relation between the soil hydraulic conductivity and its structural porosity, and they suggested the use of the latter to monitor soil degradation occurrence.…”

“…(8) and (9), respectively (Ghiberto et al, 2007). The equations for the site at Gálvez with CT-S and NT-R are included as examples.…”

“…In the Santa Fe Province, one of the main productive regions in the Argentine Humid Pampa, the intensification is causing a strong edaphic degradation because of the low resilience of the silty-loam soils (Cosentino and Pecorari, 2002;Pilatti et al, 2006;Ghiberto et al, 2007;Taboada et al, 2008).…”

Caracterização da matéria orgânica de solo irrigado com efluente de estação de tratamento de esgoto

“…O aumento de sódio no solo provoca a expansão e a dispersão das argilas devido à substituição de cátions bivalentes pelo íon Na + , monovalente e de grande esfera de hidratação (SUMNER, 1993;HALLIWELL et al, 2001). Esses fenômenos provocam a obstrução gradual dos poros e a redução da condutividade hídrica (SUMNER, 1993;EMONGOR;RAMOLEMANA, 2004;GONÇALVES, 2005;BAGARELLO et al, 2006;GLOAGUEN, 2006;GHIBERTO et al, 2007), ocasionando diminuição da condutividade hidráulica, impermeabilização do solo, escoamento superficial e erosão do solo, e decréscimo na aeração do solo (LADO et al, 2004;REICHARDT & TIMM, 2004;FETTER, 1993;MC BRIDE, 1997 (STEVENSON, 1994;ROSE et al, 1998;DARBAN et al, 2000;MARTINEZ et al, 2001;BRADY;WEIL, 2002).…”