Table 2 Results of GeoChem-EZ analysis of nutrients solutions in Table 1
|  | Free Activity (−log) | |||
|---|---|---|---|---|
Ion | 1/2x | 1/2 High | 1/2x -N | 1/2x High -N |
Mg | 4.176 | 4.177 | 4.16 | 4.16 |
Fe +2 | 5.902 | 5.818 | 5.894 | 5.822 |
Mn +2 | 6.189 | 5.801 | 6.178 | 5.79 |
Na | 4.337 | 4.304 | 4.331 | 4.299 |
Zn | 9.847 | 7.552 | 9.838 | 7.551 |
Cu +2 | 12.691 | 12.106 | 12.682 | 12.105 |
Co +2 | 11.09 | 10.506 | 11.081 | 10.505 |
Ca | 3.563 | 3.563 | 3.546 | 3.545 |
K | 2.378 | 2.378 | 2.372 | 2.372 |
EDTA | 14.984 | 15.571 | 14.968 | 15.547 |
B(OH)4 | 7.522 | 7.522 | 7.521 | 7.521 |
Cl | 3.044 | 3.044 | 3.038 | 3.038 |
SO4 | 3.585 | 3.568 | 3.565 | 3.547 |
MoO4 | 6.478 | 6.478 | 6.455 | 6.455 |
NH3 | 5.146 | 5.146 | -- | -- |
NO3 | 2.646 | 2.646 | -- | -- |
PO4 | 9.273 | 9.275 | 9.266 | 9.268 |