Volunteer Cereals

Volunteer Cereals

1. Difficult to remove from cereal crop

   • Control via...
     • Rotational ploughing
       • 90% of grass weeds germinate from top 2-3cm
         • Ploughing puts it at a depth it cannot emerge from
         • Ploughing can return seed closer to surface
           • Weeds do not persist
             • Hence could plough every one in 2/3 years to reduce burden
     • Stale seedbed
       • 1. Create medium quality seedbed
         • tined cultivator on light soils
         • heavy disc harrows on heavy soil
         • 2. wait for germination
           • 10-20 days
           • 3. Spray with Roundup
             • 4. Drill 6-48hrs later
               • depends on formulation