SAWDUST
Sawdust is often used as a mulch material around herbaceous perennials
and woody ornamentals.
Problems can occur as sawdust starts decomposing. Soil bacteria may
tie- up or "borrow temporarily" some available nitrogen. The constant addition
of sawdust may cause plants to appear stunted and yellowish.
As the sawdust finishes decomposing, nitrogen will be returned to the
soil.
A handful of a complete fertilizer scattered over the sawdust should
limit any temporary nitrogen depletion.
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