Mulch types application rates benefits, and limitations
Link to this table

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 24 July 2022, at 14:59.