Table 1.
Calculated concentration of elements and compounds in the sand solutions of different seaweed extract (SE) treatments
| Component | Control | SE (1:25) | SE (1:200) |
|---|---|---|---|
| pH | 5.73 | 6.14 | 5.79 |
| N (mg L−1) | 97.3 | 103.2 | 98.0 |
| P (mg L−1) | 14.3 | 14.9 | 14.4 |
| K (mg L−1) | 108.6 | 218.2 | 122.3 |
| S (mg L−1) | 29.7 | 38.6 | 30.9 |
| Ca (mg L−1) | 92.7 | 94.1 | 92.9 |
| Mg (mg L−1) | 22.5 | 25.4 | 22.9 |
| Fe (μg L−1) | 67.2 | 408.0 | 109.8 |
| Mn (μg L−1) | 915.6 | 921.5 | 916.4 |
| B (μg L−1) | 920.9 | 965.4 | 926.5 |
| Zn (μg L−1) | 90.8 | 105.6 | 92.7 |
| Mo (μg L−1) | 24.9 | 24.9 | 24.9 |
| Cu (μg L−1) | 37.6 | 37.6 | 37.6 |
| Laminarins (mg L−1) | 0.0 | 207.4 | 25.9 |
| Auxins (μg L−1) | 0.00 | 0.45 | 0.06 |
| Cytokinins (μg L−1) | 0.00 | 0.11 | 1.3 × 10−2 |
| Betaines (μg L−1) | 0.00 | 1.13 | 0.14 |