Abstract
Repeated tillage operations for planting sugarcane (Saccharum spp.) and wheel traffic for cane harvesting and transport are known to affect the surface and sub-surface soil in Ramu sugarcane plantation of Papua New Guinea. This study examines the changes in the bulk density (SBD), penetration resistance (PR) and water infiltration (WI) parameters in cane rows and wheel tracks of a Tropofluents that have been exposed to varying durations (0, 6, 11, 16 and 22 years) of cane cultivation after being converted from grasslands. Sugarcane cultivation duration had a significant (p 10 cm depth). In response to 22 years of cane cultivation, bulk density increased by a small extent in the cane rows (2.5%), while in wheel tracks the increase was by 15%. There was a significant (p
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