Table 2 Percentages of hydrophilic (HIL) and hydrophobic (HOB) C in humic acid extracted from microaggregates (150–250 µm), determined by high performance liquid chromatography.
Hydrophilic[HIL] | Hydrophobic[HOB] | HIL/HOB ratio | |
---|---|---|---|
% | |||
NTR | 59.8 | 40.2 | 1.5 |
CTR | 71.3 | 28.7 | 2.5 |