Mulch types application rates benefits, and limitations
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Mulch Type Application Rate Benefits Limitations
Straw, hay, or other grasses 1.5 to 2.5 tons per acre Readily available and inexpensive; very effective in controlling erosion; can be applied on large sites via blower Can carry unwanted seeds; might need tackifier or anchoring,

especially on steep slopes

Wood chips, bark, sawdust 5 to 8 tons per acre Very low cost in some locations; chips can be effective on slopes up to 30% High nitrogen demand when decomposing; can float away or blow away during rain storms
Rock 200 to 500 tons per acre Could be inexpensive and readily available in some locales; might be suitable for smaller sites Inhibits plant growth; adds no nutrients to the soil; can be costly to apply on slopes and large sites; adds hardened look to slopes
Hydraulically applied mulches 1.5 to 2.5 tons per acre Easily and rapidly applied with sprayer equipment; can include seed, fertilizer, flexible/fibrous mulches, and soil binders Could be too expensive for small or very remote sites; after application, must dry for at least 24 hours before rainfall

This page was last edited on 13 April 2020, at 19:36.


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