2015
DOI: 10.4215/rm2015.1403.0010
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Macro and Micromorphologic Indicators of Physical Clayey Red Latosol Cultivated With Sugarcane

Abstract: O sudoeste do estado de Goiás se destaca no processo de expansão recente do cultivo da cana-de-açúcar, em especial a microrregião de Quirinópolis, onde inicialmente foram substituídas áreas de cultura anual, sobretudo soja, e em seguida áreas de pastagem, sobre Latossolo Vermelho distroférrico argiloso (LVdf), que apresenta alto potencial de compactação. O objetivo desse trabalho foi avaliar o processo de compactação de tais solos cultivados com cana-de-açúcar, considerando que os perfis selecionados foram des… Show more

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Cited by 2 publications
(3 citation statements)
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“…The relative distribution pattern was typically gefuric in P1 and P2, and chitonic/ porfiric in P14, probably caused by clay losses and packing under intensive cultivation (soil compaction) (Figure 2, Table 4). Analyzing a comparable Rhodic Ferralsols with medium texture under sugarcane (Cerrado), Silva and Castro (2015) reported very similar results, with a porfiric pattern as a consequence of densified zones, reaching cementation of quartz grains (skeleton) by the compacted micromass. This was also corroborated by Silva et al (1998) and Soares et al (2005), who considered the porfiric pattern of Ferralsols as result of severe compaction, particularly in surface horizons of medium-texture soils.…”
Section: Photomicrographs Of Ferralsols Under Native Vegetation (P1 Amentioning
confidence: 67%
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“…The relative distribution pattern was typically gefuric in P1 and P2, and chitonic/ porfiric in P14, probably caused by clay losses and packing under intensive cultivation (soil compaction) (Figure 2, Table 4). Analyzing a comparable Rhodic Ferralsols with medium texture under sugarcane (Cerrado), Silva and Castro (2015) reported very similar results, with a porfiric pattern as a consequence of densified zones, reaching cementation of quartz grains (skeleton) by the compacted micromass. This was also corroborated by Silva et al (1998) and Soares et al (2005), who considered the porfiric pattern of Ferralsols as result of severe compaction, particularly in surface horizons of medium-texture soils.…”
Section: Photomicrographs Of Ferralsols Under Native Vegetation (P1 Amentioning
confidence: 67%
“…This results in a porostriated to granostriated b-fabrics under plane polarized light. Micromorphological results indicated evidences of compaction by intensive mechanization in patches of sandy soils, and the structural reorganization of P14, leading to coalescing aggregates and closed packing voids with lower macroporosity, becoming similar to clayey Ferralsols, as reported by Gomes et al (2004) and Silva and Castro (2015). Changes in soil structure due to land use can be detected by micromorphological studies and associated features, when comparing natural with compacted or degraded soil (Bullock et al, 1985).…”
Section: Photomicrographs Of Ferralsols Under Native Vegetation (P1 Amentioning
confidence: 94%
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