1. Introduction
Biochar application (CA) has received a growing interest as a
sustainable technology to improve highly weathered or degraded
tropical soils (Lehmann and Rondon, 2006). CA can enhance plant
growth by improving soil chemical characteristics (i.e., nutrient
retention, nutrient availability), soil physical characteristics (i.e.,
bulk density, water holding capacity, permeability), and soil
biological properties, all contributing to an increased crop