| Researcher(s) |
Ian Ludwig Amanda Pearce Nigel Wilhelm |
|---|---|
| Contact email | Amanda.Pearce@sa.gov.au |
| Contact phone | 407 400 939 |
| Year(s) | 2022 |
| Contributor | SARDI Minnipa Agricultural Centre |
| Trial location(s) |
Kalangadoo, SA
|
To identify the severity of K deficiency in broad-acre crops in respect to the Colwell K level in the top 10 cm of soil.
| Lead research organisation |
SARDI Minnipa Agricultural Centre |
|---|---|
| Host research organisation |
SARDI Minnipa Agricultural Centre |
| Trial funding source | GRDC UOA2201-002RTX |
| Related program | N/A |
| Acknowledgments |
Childs family, landowners |
| Other trial partners | Not specified |
| Crop type | Cereal (Grain): Wheat |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Replicated |
| Sow rate or Target density | 100kg/ha |
|---|---|
| Sow date | 28 May 2022 |
| Harvest date | Not specified |
| Plot size | 12m x 5m |
| Plot replication | 4 |
| Plot randomisation | No |
| Other trial notes |
​This investment is designed to collect and collate data from a range of different soil types under plus and minus K fertiliser treatments to validate K responsiveness and look to ascertain if current critical K values are accurate across all soil types. The investment is also designed to demonstrate the value of tissue testing to diagnose K deficiency and validate best practice methodologies of application including banding of K which has been shown to provide benefits vs topdressing, foliar application & claying. Colwell K in top 10 cm, 99 ppm |
SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
Jeffrey, S.J., Carter, J.O., Moodie, K.B. and Beswick, A.R. (2001). Using spatial interpolation to
construct a comprehensive archive of Australian climate data , Environmental Modelling and Software, Vol
16/4, pp 309-330. DOI: 10.1016/S1364-8152(01)00008-1.
