Potassium responses in winter crops and pastures
In collaboration with NSW DPI and the GRDC, the response of wheat and barley (Warndoo 2015) and wheat, triticale and canola (Breadalbane 2015) are being investigated. Responses of wheat and canola to K are assessed at Glenthompson (2016) with Southern Farming Systems and the reponse of pasture yield and quality to N, K and Mg is being addressed at Bessiebelle. Additional demonstrations have been undertaken on pastures in coilaboration with Meridian Ag P/L. Support of these trials is provided by Canpotex P/L and IPNI ANZ.
IPNI-2015-AUS-24
Following the market development work in Queensland over the past few years, there are several areas that are proposed for attention during 2015. Monitoring of the Queensland sites will be continued with the current sorghum crop, and there are new activities proposed for the southern region to demonstrate K responses particularly to fodder producers supplying the dairy industry. A summary of the activities is given below: 1. Read more
Articles
| 01 Mar 2017 | Potassium for fodder quality – 2016 |
| 27 Feb 2017 | Potassium responses on wheat and canola at Glenthompson, 2016 |
| 08 Sep 2015 | Potassium for quality hay |
| 08 Sep 2015 | K responses on the Southern Tablelands |
| 23 Jul 2015 | K experiment at Lake Bolac |
Interpretive Summary
A field site was selected at Glenthompson in the high rainfall zone of southwest Victoria, Australia to further evaluate the responses in that region to potassium (K). The site selected was of moderate soil K status (assessed by bicarbonate extraction at 50 mg/kg K), although the reported critical values for soil test K are uncertain for these soils and environments. Five rates of K (0, 25, 50, 100, 150) were applied at seeding to wheat, canola, and faba beans in a small plot experiment.
Earlier projects have identified that potassium (K) removal is increasing in high rainfall cropping zones (annual rainfall 550 mm) as the area and yield of crops both increase with crop intensification. Previous research in this region has shown responses to applied K. To provide additional information, two field experiments were undertaken during 2016.
Updates & Reports
| 2016 | K rate and placement for wheat and canola |
| 2016 | K responses in fodder production |
| 2016 | K responses in fodder crops 2015 |
| 2016 | K responses at Warndoo, 2015 |
| 2016 | K responses at Breadalbane 2015. |
| 2015 | Project Description |
Field site at Glenthompson 2016Project Leader
Jonathan Holland, New South Wales Department of Primary Industries
Ed Hilsden, Landmark
Andrew Speirs, Meridian Agriculture P/L
Mark Conyers, New South Wales Department of Primary Industries
Project Cooperators
Chris Kilby, Landholder
James Cheetham, Delta Ag
Richard Hayes, NSWPDI
Megan Beveridge, Southern Farming Systems
Andrew Speirs, Meridian Ag
Claudia Gebert, Southern Farming Systems
IPNI Staff
Location
Oceania \ Australia and New Zealand \ AUS \ New South Wales \ Breadalbane
Oceania \ Australia and New Zealand \ AUS \ Victoria \ Warndoo
Oceania \ Australia and New Zealand \ AUS \ Victoria \ Glenthompson
Oceania \ Australia and New Zealand \ AUS \ Victoria \ Bessiebelle