Table A1.
Properties of potting mixes and soil used in glasshouse assays examining the effects of plant growth promoters on seedling growth.
| Organic Soil | Low Nutrient Potting Mix | High Nutrient Potting Mix | ||
|---|---|---|---|---|
| pH | 5.8 | pH | 6.3 | 6 |
| Nutrients (mg/L) | ||||
| Organic matter (%) | 3.3 | Nitrate-N | 1 | 49 |
| Available N (kg/ha) | 81 | Ammonium-N | <1 | 4 |
| P | 3 | 5 | ||
| Total C (%) | 1.9 | K | 25 | 103 |
| Total N (%) | 0.19 | S | <1 | 17 |
| C/N Ratio | 9.9 | Ca | 3 | 19 |
| Mg | 2 | 19 | ||
| Sulphate sulphur (mg/kg) | 11 | Na | 8 | 16 |
| Reisen P (mg/kg) | 28 | Fe | 31 | 19 |
| Olsen P (mg/L) | 12 | Mn | 10 | 9 |
| Zn | 2 | 2 | ||
| K (me/100 g) | 0.45 | Cu | 0.14 | 0.68 |
| Ca (me/100 g) | 7.2 | B | <0.05 | 0.08 |
| Mg (me/100 g) | 0.78 | |||
| Na (me/100 g) | 0.13 | |||
| CEC (me/100 g) | 14 | |||
| Total base saturation (%) | 62 | |||
| Volume weight (g/mL) | 1.03 | |||