| Researcher(s) |
Peter Rees (Summit Fertilizers) |
|---|---|
| Year(s) | 2009 |
| Contributor | West Midlands Group |
| Trial location(s) |
West Moora, WA
|
This was the first year of an intended long term trial investigating the effect of K nutrition on sandplain. Potassium was applied at rates between zero and 100 kg/ha IBS and banded in the forms of MOP and compound NPK product (Vigour).
| Lead research organisation |
Summit Fertilizers |
|---|---|
| Host research organisation | N/A |
| Related program | N/A |
| Acknowledgments |
Thanks go to the Hamilton and McTaggart families for access to their property. PAPER REVIEWED BY: Brett Beard, Summit Fertilizers |
| Other trial partners | Kalyx Agriculture |
| Crop type | Oilseed: Canola |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Replicated |
| Sow rate or Target density | 5kg/ha |
|---|---|
| Sow date | 19 May 2009 |
| Harvest date | Not specified |
| Plot size | Not specified |
| Plot replication | Not specified |
| Fertiliser |
All treatments (except Treatment 1 - UTC) had 100kg/ha MAPSZC (10.6N, 21P, 8S, 0.3Cu, 0.3Zn) basal at seeding. All treatments (except UTC and Treatment 3 – 0 N) had 120kg/ha N applied as Urea in 3 timings; 1st - IBS on 19th May; 2nd - 4-6 leaf on 29th June; 3rd - pre-spiking on 3rd August |
| Soil amelioration |
2t/ha Lime & 200kg/ha Gypsum were applied pre-seeding |
| Seed treatment | Jockey & Gaucho |
| # | Variety |
Treatment 1
|
Treatment 2
|
Grain yield (t/ha) |
|---|---|---|---|---|
| 1 | █ Cobbler | █ Untreated control | █ Nil N | 0.91 |
| 2 | █ Cobbler | █ 0 K | █ 120kg/ha N | 1.78 |
| 3 | █ Cobbler | █ 25 K banded as MOP | █ Nil N | 0.79 |
| 4 | █ Cobbler | █ 25 K banded as MOP | █ 120kg/ha N | 1.73 |
| 5 | █ Cobbler | █ 12.5 K banded as MOP | █ 120kg/ha N | 1.75 |
| 6 | █ Cobbler | █ 6.25 K banded as MOP | █ 120kg/ha N | 1.83 |
| 7 | █ Cobbler | █ 25 K topdressed IBS | █ 120kg/ha N | 1.97 |
| 8 | █ Cobbler | █ 50 K topdressed IBS | █ 120kg/ha N | 1.94 |
| 9 | █ Cobbler | █ 100 K topdressed IBS | █ 120kg/ha N | 1.93 |
| 10 | █ Cobbler | █ 12.5 K banded as Vigour | █ 120kg/ha N | 1.86 |
| 11 | █ Cobbler | █ 16 K banded as Vigour | █ 120kg/ha N | 1.73 |
| Rainfall trial gsr (mm) | 381mm |
|---|
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.
