All mulching materials decreased soil evaporation in the energy-limited stage in relation
to the bare soil, but the decreases and their significance varied among the two experiments. In
experiment 1 (soil trays), the average daily soil evaporation rates (ER) were different (p < 0.05)
among all mulching treatments, with highest ER decreases in plastic and pine bark, and lowest
ER decreases in geotextile and vine residues with a 5 cm thickness. In experiment 2
(microlysimeters) where, in contrast with experiment 1, the mulching materials were not in
contact with the wetted soil, the geotextile was more beneficial than the pine bark for soil
evaporation control.
All mulching materials decreased soil evaporation in the energy-limited stage in relationto the bare soil, but the decreases and their significance varied among the two experiments. Inexperiment 1 (soil trays), the average daily soil evaporation rates (ER) were different (p < 0.05)among all mulching treatments, with highest ER decreases in plastic and pine bark, and lowestER decreases in geotextile and vine residues with a 5 cm thickness. In experiment 2(microlysimeters) where, in contrast with experiment 1, the mulching materials were not incontact with the wetted soil, the geotextile was more beneficial than the pine bark for soilevaporation control.
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