Table 3.
Load of Escherichia coli and Salmonella spp. and content of metals and non-metals of hydroponic barley forage (HBF) produced with reclaimed wastewater and with well water.
| Parameter | HBF produced with reclaimed wastewater | HBF produced with well water |
|---|---|---|
| Escherichia coli, CFU/g | <10 | <10 |
| Salmonella spp., CFU/g | Not detected | Not detected |
| Cadmium, mg/kg Cd | <0.010 | <0.005 |
| Chromium, mg/kg Cr | <0.010 | 0.039 |
| Manganese, mg/kg Mn | 2.70 | 3.317 |
| Iron, mg/kg Fe | 6.20 | 11.78 |
| Nichel, mg/kg Ni | 0.067 | 0.286 |
| Lead, mg/kg Pb | <0.010 | 0.03 |
| Copper, mg/kg Cu | 0.78 | 1.69 |
| Zinc, mg/kg Zn | 0.004 | 0.003 |
| Total N, % | 0.29 | 4.9 |
| Calcium, mg/kg Ca | 174.0 | 407.7 |
| Phosphorus, mg/kg P | 196.7 | 86.8 |
| Magnesium, mg/kg Mg | 150.0 | 316.7 |
| Sodium, mg/kg Na | 254.0 | 57.7 |
| Potassium, mg/kg K | 646.0 | 536.9 |