Location area: Rutherglen in NE Victoria | |||
SR1 (Stubble retention 1) | RGL6 (Rotation of grain Legumes) | PTD (permanent top-dressing) | |
Start date | 1980 | 1977 | 1914 |
Treatments Rotations/ crop sequences | DDR, DDB, CCB (DD = direct drill, R = stubble retained, B = stubble burnt, CC= cultivation, 2 passes with scarifier) 2 year: cereal – grain legume (wht-fab) 3 year: canola, faba wheat (can-fab-wht) 5 year: subclover-grain crop (subclv-subclv-can-wht-bar) | DDB 1 year: continuous wheat (wht-wht) 1 year: continuous lupin (lup-lup) 2 year: phase replicationwheat – lupin lupin - wheat | Superphosphate 1. No fertiliser (control) 2. Superphosphate - 125 kg/ha every 2nd year 3. Superphosphate - 250 kg/ha every 2nd year 4. Superphosphate - 125 kg/ha every 2nd year + lime at 1.25 t/ha every 4th year from 1914-48. 5. Basic phosphate 125 kg/ha |
Replicates | 8 | 4 | 1 |
Plot size | 4.5 m x 20 m | 2.4 m x 20 m | 0.5 ha |
No plots | 56 | 32 | 6 |
Soil type | Dermosol | Dermosol | Chromosol |