Destroying dug up weeds+ seeds
If you moisten everything and then spread it in the sun some days later,
the seeds should break dormancy and then die. I don't know if this works
with weeds, or if it's feasible on the scale you need, but it's what I
do to the sawdust that comes out of the birdcage, before putting it on
the garden so the birdseed doesn't sprout.
jane
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