Table 1.
Chemical analysis and rate of N applications for the slurries supplied at pre-sowing (Broadcasting) and with fertigation events.
| Treatment | Dry matter content (%) | Total N on a fresh matter basis (g kg-1) | TAN (% Total-N) | Application rate (m3 ha-1) | Total-N applied (kg ha-1) | Applied TAN (kg ha-1) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | A + P | P | A | A + P | P | A | A + P | P | ||||
| Broadcasta | 3.85 | 3.01 | 54.57 | 88 | 49 | 0 | 265 | 147 | 0 | 145 | 80 | 0 |
| Fertigation Ib | 0.25 | 0.16 | 76.25 | 0 | 160 | 160 | 0 | 26 | 26 | 0 | 20 | 20 |
| Fertigation IIb | 1.03 | 0.68 | 59.32 | 0 | 0 | 94 | 0 | 0 | 64 | 0 | 0 | 38 |
| Fertigation IIIb | 0.97 | 0.66 | 44.82 | 0 | 148 | 148 | 0 | 97 | 97 | 0 | 44 | 44 |
| Fertigation IVb | 1.23 | 0.93 | 51.72 | 0 | 0 | 96 | 0 | 0 | 89 | 0 | 0 | 46 |
| Sum | 265 | 270 | 276 | 145 | 144 | 148 | ||||||
aData refers to liquid-separated and undiluted slurry.
bData refers to microfiltered and diluted (1:10) slurry liquid fraction.