Related by context. Frequent words. (Click for all words.) 64 acidic soils 64 calcareous 62 soils 62 sandy loam 60 alkaline soils 60 marl 59 coarse sand 58 silts 58 moist soils 58 alkaline soil 58 sandy soils 58 resinous 58 tannic acid 57 clay soils 57 streambanks 57 loamy 57 loess 57 pasture grasses 56 ponded 56 coniferous 56 dentine 55 sweet clover 55 kaolinite 55 sulfide minerals 55 basaltic 55 glacial till 55 greenish brown 55 peaty 55 iron oxides 55 drained soils 55 greywacke 55 tuffs 55 goethite 55 pine bark 55 acidic soil 55 clasts 55 stubbles 55 corundum 55 aragonite 55 riparian vegetation 55 calcium oxide 54 pyrite pyrrhotite 54 vegetated 54 friable 54 sparse vegetation 54 phosphatic 54 limed 54 broad leafed 54 hygroscopic 54 biotite 54 alluvium 54 composted manure 54 oak hickory 54 oak pine 54 ochres 54 montane 54 hummocks 54 siltstones 54 evergreen foliage 54 calcium sulfate 54 decaying vegetation 53 mudstone 53 andesitic 53 blackish 53 rotting vegetation 53 Grass clippings 53 oxidise 53 sandy soil 53 compacted soil 53 foliated 53 interbedded 53 stippled 53 gravels 53 silty 53 grassy meadows 53 calcium oxalate 53 exudate 53 erosional 53 decomposed granite 53 arsenate 53 chalky 53 mullein 53 woody stems 53 scheelite 53 pebbly 52 revegetated 52 grayish white 52 carbides 52 mudstones 52 tilth 52 creek bottoms 52 evergreen shrubs 52 grainy texture 52 carbonaceous 52 mottling 52 sulphide minerals 52 cinnabar 52 shredded bark 52 pine oak 52 Tannins 52 sandy