Living · 6 pages · 12 min

Why tilling can wake a weed

Tilling lifts buried seed into light and air, which is the cue many weed seeds use to germinate.

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From the opening

Tilling wakes weeds because it moves buried seeds toward the surface and briefly creates the open, bright conditions their dormancy is waiting for. The tool that prepares a seedbed for a crop prepares one for the bank as well. The opening covers buried seed rides up into light, other seed is buried in the same pass, and a stale seedbed uses the flush.

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Inside

  • Buried seed rides up into light
  • Other seed is buried in the same pass
  • A stale seedbed uses the flush
  • Chopped roots are a second wake-up
  • Where the idea stops applying
  • A distinction worth keeping

Sources

  • Light-sensitive germination after soil disturbance
  • Stale seedbeds as a deliberate use of the flush