Assertion: soil's clay | /r/CapableOf | increase cation-exchange
Facets:
Source sentences:
text: Topsoil - This will make it a real soil, and adds clays that will increase cation-exchange, adding a diverse amount of materials to the mix (EJ likes to take a shovel and get some soil from a nice spot on his property) or just straight 33/33/33—Peat/Compost/Aeration without the topsoil