Table 2.
Nutrient composition in fertigation/water.
| Fertigation treatment | Injection rates | ||
|---|---|---|---|
| Product | Application rate | L per 1000 L | |
| 1000 L tank | Pre 3rd truss flower | Post 3rd truss | |
| Tank A | |||
| Calcium Nitrate | 80 kg | 5 | 5 |
| Iron 6% EDDHA-chelate | 1 kg | 5 | 5 |
| 8.10% | |||
| Tank B | |||
| MAP | 36 kg | 5 | 5 |
| Tank C | |||
| Magnesium Nitrate | 80 kg | 5 | 5 |
| Micromix with Iron 11% DTPA-chelate | 4 kg | ||
| 8.40% | |||
| Tank D | |||
| Potassium sulphate | 90 kg | 5 | 5 |
| 9.00% | |||
| Tank E | |||
| Nitric Acid | 8L | ||
| 11.90% | |||
| Calculated EC (mS cm−1) at specified injections = | 1.55 | 1.8 | |
Throughout the experimental period, the computerized system (Priva, Netherlands), managed the irrigation timing and frequency as shown in Table 2.