| Researcher(s) |
Sarah Noack Ben Smith |
|---|---|
| Year(s) | 2025 |
| Contributor | Hart Field Site Group |
| Trial location(s) |
Farrell Flat, SA
Hart, SA |
| Further information | View external link |
The specific objectives of the mixed-species pasture trials were to:
• Optimise pasture production across different environments and production zones.
• Evaluate pasture options for their ability to produce biomass and feed quality during key periods of the season when feed gaps occur.
• Demonstrate weed and disease management benefits, nitrogen fixation, and soil water conservation, which may improve crop yield in following seasons.
• Cereals were the most reliable and productive crop type in 2025, with barley varieties leading both early and later (post-grazing) season dry matter.
• Brassicas offered high dry matter potential but were more variable; tillage radish and forage brassicas performed well early, while Puna chicory consistently had low dry matter.
• Ryegrass varieties produced moderate early feed but increased later in the season. Pasture legumes were low yielding early and variable later; vetches, medics, clover and trigonella improved with time but generally remained lower than cereals and ryegrass in 2025.
• Mixed-species treatments provided consistent dry matter, often matching the best single species crops, highlighting their value for providing feed across the season.
• Feed quality and other benefits from pasture legumes and mixed-species (e.g. residual water and soil nitrogen) are still being assessed for 2025.
| Lead research organisation | N/A |
|---|---|
| Host research organisation | N/A |
| Related program | N/A |
| Acknowledgments |
The authors acknowledge current program funding the project DN6_25_13 “Mixed Species Pastures in the Mid North” and previous investment DN6_24_05 “Mixed Species Pastures in the Mid North High Rainfall Zone” which contributed to the development of this work. We also thank collaborating grower groups Hart Field-Site Group and the Mid North High Rainfall Zone for hosting the trials. |
| Other trial partners | Not specified |
| Crop type | Pasture: Mixed species |
|---|---|
| Treatment type(s) |
|
| Trial type | Demonstration |
| Trial design | Unknown |
| Sow date | 18 June 2025 |
|---|---|
| Harvest date | Unknown |
| Plot size | Not specified |
| Plot replication | Not specified |
| Fertiliser |
Urea (47 kg N/ha) was applied in July at each trial site to ensure pasture production was not limited by nitrogen. |
| Sow date | 18 June 2025 |
|---|---|
| Harvest date | Unknown |
| Plot size | Not specified |
| Plot replication | Not specified |
| Fertiliser |
Urea (47 kg N/ha) was applied in July at each trial site to ensure pasture production was not limited by nitrogen. |
| Sow date | 20 June 2025 |
|---|---|
| Harvest date | Unknown |
| Plot size | Not specified |
| Plot replication | Not specified |
| Fertiliser |
Urea (47 kg N/ha) was applied in July at each trial site to ensure pasture production was not limited by nitrogen. |
| Sow date | 20 June 2025 |
|---|---|
| Harvest date | Unknown |
| Plot size | Not specified |
| Plot replication | Not specified |
| Fertiliser |
Urea (47 kg N/ha) was applied in July at each trial site to ensure pasture production was not limited by nitrogen. |
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.