Dr Yaseen Khalil provides an update on his pasture rotations project, highlighting key findings

AHRI Snapshots

In this episode of AHRI Snapshots, we’re catching up with AHRI Agronomy Research Associate Dr Yaseen Khalil.Yaseen has been working on pasture rotations, with his project finishing up in December this year. Today, we’re going to get an update on where the project is at so far and find out some of the key results.Yaseen’s project is funded by the Grains Research and Development Corporation, which invests $1.5 million in AHRI each year to ensure Australian grain growers have access to world class research in strategies to mitigate weeds and control herbicide resistance.Rotation explainerActivity 3: Short-term pasture rotational studiesAt the start of the trials, average ryegrass seed banks were 3773 seed/m2 at Bolgart and 9143 seed/m2 at North Brookton.• Rotation 1 (Wheat): Weed management options applied in this rotation, controlled 36 - 67% of the seedbank of the ryegrass at Bolgart and Brookton sites, respectively.• Rotation 2 (Fallow): Weed management options applied in this rotation, controlled 100% of the seedbank of the ryegrass at Bolgart and Brookton sites.• Rotation 3 (Lupin): Weed management options applied in this rotation, controlled 51 and 61% of the seedbank of the ryegrass at Bolgart and Brookton sites, respectively.• Rotation 4 (Serradella killed): Weed management options applied in this rotation, controlled 99.3 and 99.5% of the seedbank of the ryegrass at Bolgart and Brookton sites, respectively.• Rotation 5 (Serradella killed): Weed management options applied in this rotation, controlled 99 and 98.7% of the seedbank of the ryegrass at Bolgart and Brookton sites, respectively.• Rotation 6 (Serradella spray-topped): Weed management options applied in this rotation, controlled 85.6 and 92.2% of the seedbank of the ryegrass at Bolgart and Brookton sites, respectively.• Rotation 7 (Serradella spray-topped): Weed management options applied in this rotation, controlled 86.1 and 92.1% of the seedbank of the ryegrass at Bolgart and Brookton sites, respectively.

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