0 a covering of decaying leaves that is spread over the soil in order to keep water in it or to improve it
1 to put mulch on or around something:
[ + adv/prep ] Mulch around the base of the roses.
Mulch the roses.
2 a covering, esp. of decaying leaves, grass, or plant material, used to keep water in the earth near plants or to protect them from weeds (= unwanted plants)
Translucent mulches resulted in a 70-88% reduction in purple nutsedge penetration compared to opaque mulches.
The plant material was either removed after crop mowing or was left on the field after mulching.
Finally, workshops were organized for them to learn various tasks (brush work, cobbling, printing, woodwork, ironwork, sewing, basketwork, mulching).
They attributed the increased growth and grain yield to the high nutrient concentrations and fast nutrient release and decomposition of the mulches.
Furthermore, it would be easy to return to traditional farming practices if mulching proved unsatisfactory.
Effects of mulches on soil properties and tomato production 1: soil temperature, soil moisture and marketable yield.
However, previous work has demonstrated the effectiveness of natural mulches in conserving soil moisture.
The use of irrigation masked possible differences in soil moisture content that can occur between nonmulched and mulched soils.
