In heavier soils, add gravel to the bottom of the planting hole, topping up with compost. (idealhome.co.uk)
:P) Do an initial rinse and spin, then just put your washer on the hottest setting for heavy soil with an extra rinse at the end and you are golden. (nourishinglittlesouls.com)
It resulted in heavy soil erosion, desertification, and climate change. (religion-online.org)