constituents. This component generally described as a key soil attribute for soil and environmental
quality is involved in several physical and biological properties used for SQ assessment. In this study,
the lack of significant statistical correlation with DMY indicates that the relationship of organic C to soil
productivity is indirect (Carter, 2002). Similarly, soil texture is a basic soil physical quality controlling
soil hydraulic properties, nutrient and oxygen exchange as well as organic C accretion and mineralization
patterns in soil systems. The lack of correlation with maize growth probably pointed at water sufficiency
in potted media during the experiment period. The inorganic sequential extraction procedure isolated
P pools with different potentials to plant nutrition and growth. The last SQ that indubitably stands for
HCl-P showed no significant relationship with DMY, pointing at its low availability to maize at least in
the short run.