Project Delivery: Manjimup Pasture Group
Contact: Peter Clifton (Bunbury). Ph: 9724 2469. Email: email@example.com
Website: SWCC Sustainable Agriculture
Start Date: June 2014 End Date: April 2017
Site ID: IN8
Size Are Ha: 2
This project aims to establish grazing cereals and perennial pastures in one grazing system in the high rainfall zone to increase productivity, protect soils and increase groundcover and biodiversity.
The trial will take place on a single farm north of Manjimup on gravelly Jarrah loam soil with clay at depth.
The seeding mix in 2014 included Einstein Wheat, Phalaris, Chicory and Lucerne (except treatment 6 does not have lucerne). Treatment 5 was treated with VAM Plus and Seed Gro Plus.
Trial treatments include:
- No cereal and shallow sown perennials.
- Skip row sowing (sow perennials and cereal in alternate rows, deep cereal, shallow perennial)
- Same row deep cereal / shallow perennial
- Same row shallow cereals and perennials
- No cereal and shallow sown perennials with seed treatment VAM Plus and Seed Grow Plus.
- Same row deep cereal / shallow perennial minus lucerne
Technical report year 2: MPG 2016 Technical Report – July 2016, summarised below:
- Perennials can establish when sown with cereals. Perennial dry matter in year one is reduced compared to perennials sown alone, but this difference is reduced over two years.
- Sowing perennials with cereals can increase gross margins in year one, but when sowing perennials-only, their increased dry matter production in year two brings the annualised gross margins within a much tighter range ($804 to $1096 per hectare).
- Sowing cereals alone in year one and perennials alone in year two does not appear to increase gross margins due to increased chemical inputs to establish crops separately.
- Trends in gross margin analyse suggest that over two years, shallow sown perennials with cereals could have the highest gross margin, but this requires further research to confirm.
- Phalaris has not competed well in the mix and is currently at relatively low plant density. The groups believes this species may be better to establish as a monoculture or in a wetter site.
- Chicory and lucerne have both competed well even when grazed hard. However, using these species may reduce spray options, and the likelihood of grazing out lucerne is still a concern to some.
- Perennials have high feed quality late in the growing season
- In year three the group will examine if oversowing low rates of grazing barley can increase winter dry matter production.
Log of media releases
Media release of first year results (up to May 2015)
Field walk 2: 23 October 2015. Read the overview here
This project is supported by PlanFarm and the Department of Agriculture and Food WA.
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