| Title | Comment | Keywords |
|---|---|---|
| Conservation Tillage | 24:00 - 24:59 (00:59) / 1.9 MB | "Wayne Soppeland", weathering, soil, wind, windbreak, erosion, "conservation tillage", tilling, percolation, water, crop, irrigation |
Coastal & Marine Geology InfoBank
USGS CMG InfoBank Geology School: percolation |
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