| Author | Park, G |
| Author | Schroeder, BL |
| Author | Wood, AW |
| Author | Skocaj, DM |
| Date Accessioned | 2021-05-31 |
| Date Available | 2021-05-31 |
| Issued | 2019 |
| Identifier | https://hdl.handle.net/11079/18213 |
| Abstract | Excess potassium (K) fertiliser use can have a significant effect on sugar quality and refining
costs but offers no benefit to sugarcane crop yield. Potassium fertiliser guidelines are based on
soil texture and two measures of soil potassium: readily available or exchangeable K and
reserve K. The maximum recommended K rate for the Herbert is 120 kg/ha. A long-term K
trial was established on a sandy loam soil at Macknade. High K application rates increased soil
exchangeable K levels and resulted in luxury K consumption by the sugarcane plant. This
significantly increased juice conductivity and third-leaf K levels. It also resulted in significant
reductions in third-leaf values for Ca and Mg. |
| Publisher | ASSCT |
| Part of Series | Proceedings of the Australian Society of Sugar Cane Technologists, volume 41, 88-91, 2019 |
| Subject | Potassium |
| Subject | Herbert River |
| Title | Effect of long-term application of potassium on sugarcane and soil properties in the Herbert River district : ASSCT peer-reviewed paper |
| Keywords | Potassium, exchangeable K, nitric K, juice conductivity, sugar quality |
