Sowing rules as for barley. If nothing else appeals. Grasses and clover may struggle, but there will be plenty of canola. Some lupin seed could also be topdressed to fix N 2 . Take the opportunity to prevent grass seed set and the paddock will be set up for wheat in 2002.
Volunteers are a problem.
Treat as above. Chickpeas are not an option as Broadstrike will not control volunteers. Available varieties are rather dated. If the soil is suitable and disease not an issue, this is the best option by far. Barley is the most triazine tolerant of the cereals.