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The Soils of Brant County - Agriculture and Agri-Food Canada

The Soils of Brant County - Agriculture and Agri-Food Canada

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Commonly Associated <strong>Soils</strong> Ayr (AYR) soils are mostcommonly associated with Stayner soils as subdominant componentsin map unit STN 2 . Ayr soils are poorly drained, <strong>and</strong>also differ from Stayner soils in having less than 40 cm <strong>of</strong>organic materials overlying s<strong>and</strong>y <strong>and</strong> gravelly-texturedsubsoil .L<strong>and</strong>Use <strong>and</strong> Management Stayner soils, to a very largeextent, presently remain under swamp forest vegetation . <strong>The</strong>ywould require extensive clearing <strong>and</strong> drainage to be <strong>of</strong> any agriculturaluse, <strong>and</strong> the advisability <strong>of</strong> this is questionable.Styx <strong>Soils</strong> (SYX)General Soil Description Styx soils have developed onorganic materials greater than 160 cm in depth . <strong>The</strong>y are verypoorly drained . <strong>The</strong> organic horizons are all well-decomposed<strong>and</strong> are relatively uniform with depth . In the lower horizons,there is a slight increase in undecomposed plant remains, mostcommonly woody material . Soil classification is usually TypicHumisol .Soil Moisture Characteristics Styx soils are very poorlydrained . <strong>The</strong>y are rapidly permeable, but are saturated withgroundwater for most <strong>of</strong> the year unless artificially drained .<strong>The</strong>y have high water-holding capacities <strong>and</strong> have very slowsurface run<strong>of</strong>f.Commonly Associated <strong>Soils</strong> Granby (GNY) <strong>and</strong> Colwood(CWO) soils are most commonly associated with Styxsoils as subdominant components in map units SYX 3 <strong>and</strong>SYX 4, respectively. <strong>The</strong>y differ from Styx soils in beingpoorlydrained, <strong>and</strong> consisting <strong>of</strong> shallow organic layers less than 40cm in thickness overlying mineral materials. <strong>The</strong> mineralmaterials in Granby soils are lacustrine s<strong>and</strong> or loamy s<strong>and</strong>,whereasthey are lacustrine silt loam in Colwood soils .L<strong>and</strong> Use <strong>and</strong> Management Styx soils remain largelyunder swamp forest vegetation . If cleared <strong>and</strong> drained, theyhave some potential for vegetable production, but this is generally not considered advisable from an environmentalperspective .Teeswater<strong>Soils</strong> (TEW)General Soil Description Teeswater soils have developedon silt loam or loam textures 40 to 100 cm deep overlying gravellys<strong>and</strong> orgravel . <strong>The</strong>y are well-drained .Surface horizons <strong>of</strong> Teeswater soils are usually around 20cm in depth <strong>and</strong> loam or silt loam in texture. <strong>The</strong>y have moderateorganic matter contents ranging from 3 to 4% . <strong>The</strong> underlying brownish-colouredBm horizons extend to depths <strong>of</strong> 35 to45 cm . <strong>The</strong>y are typically silt loam in texture. Distinctive darkbrownBt horizons with pronounced increases in clay contentoccur at the contact with the gravelly subsoil . <strong>The</strong>y range fromloam to clay loam in texture <strong>and</strong> have a low gravel content . <strong>The</strong>transition to gravelly Ck horizons is abrupt, occurring atdepths <strong>of</strong>50 to 75 cm . <strong>The</strong>y are usually gravelly loamy s<strong>and</strong> intexture <strong>and</strong> are strongly calcareous . Soil reaction <strong>of</strong> Teeswatersoils ranges from slightly acidic to neutral in the surface horizons,to moderately alkaline in the gravelly subsoil layers . Soilclassification is Brunisolic Gray Brown Luvisol .Soil Moisture Characteristics Teeswater soils are welldrained. <strong>The</strong>y are only moderately permeable in the loamytexturedsurface horizons, but are rapidly permeable in thegravelly subsoil . Similarly, the moisture-holding capacity <strong>of</strong>the surficial materials is moderate, <strong>and</strong> is enhanced considerablyby the large increase in clay in the Bt horizon . <strong>The</strong> gravellysubsoil has a low moisture-holding capacity. Surface run<strong>of</strong>ffrom Teeswater soils can be moderate to high, the latter occurringon sloping topography.Commonly Associated <strong>Soils</strong> <strong>The</strong> most commonlyoccurring associates <strong>of</strong> Teeswater soils include Colwood(CWO), Burford (BUF) <strong>and</strong> Fox (FOX) soils in map unitsTEW 3, TEW 4 <strong>and</strong> TEW 5, respectively. Colwood soils arepoorly drained <strong>and</strong> occur on deep silt loam materials . Burfordsoils are rapidly drained <strong>and</strong> consist largely <strong>of</strong> gravellytexturedmaterials . Fox soils, likewise, are rapidly drained <strong>and</strong>are formed on deep s<strong>and</strong>y textured soil materials .L<strong>and</strong> Use <strong>and</strong> Management Teeswater soils are verygood soils for agricultural use. <strong>The</strong>yhave no significant limitationswhich affect or limit use, except on complex topographywhere slopes exceed 3 070 . Careful management to prevent erosionon sloping topography is essential . Teeswater soils areused extensively for common agricultural crops such as graincorn <strong>and</strong> forage crops . Specialty crops such as tobacco <strong>and</strong>potatoes are relatively common on these soils where supplementalirrigation is available.Toledo <strong>Soils</strong> (TLD)General Soil Description Toledo soils have developed onglaciolacustrine sediments <strong>of</strong> silty clay loam or silty clay textures. <strong>The</strong>y are poorly drained .Surface horizons <strong>of</strong> Toledo soils usually consist <strong>of</strong> about20 cm <strong>of</strong> silty clay loam, with loam textures sometimes occurring. <strong>The</strong>yare generally high in organic matter. <strong>The</strong> underlyingBg horizons are gleyed <strong>and</strong> strongly mottled . <strong>The</strong>y are usuallysomewhat heavier in texture than the surface horizons, rangingfrom clay loam to silty clay. <strong>The</strong> calcareous Ckg horizons areencountered at a depth between 40 <strong>and</strong> 50 cm . <strong>The</strong>y are siltyclay loam or silty clay in texture <strong>and</strong> strongly calcareous . Soilreaction <strong>of</strong> Toledo soils ranges from near neutral in the surfacehorizons to moderately alkaline in the subsoil . Soil classificationis usually OrthicHumic Gleysol .Soil Moisture Characteristics Toledo soils are poorlydrained . Occasionally, peaty phase Toledo soils occur whichare very poorly drained . <strong>The</strong>y usually are slowly permeable.Because <strong>of</strong> their high clay content, surface cracking is commonduring prolonged dry conditions, <strong>and</strong> short-lived moderatepermeability may occur. Groundwater levels are near the surfaceexcept for short periods during the summer when theysubside, or if the soil is artificially drained . Toledo soils havehigh water-holding capacities. Surface run<strong>of</strong>f is usually moderate,but increases substantially ifthere is significant slope .Commonly Associated <strong>Soils</strong> Beverly (BVY) soils are themost common associates <strong>of</strong> Toledo soils, occurring as the subdominantcomponent in the TLD 7 map unit . <strong>The</strong>y have similar parent material as Toledo soils but are imperfectly drained .L<strong>and</strong> Use <strong>and</strong> Management Toledo soils are fair soils foragricultural use. <strong>The</strong>ir relatively high clay contents <strong>and</strong> tendencyto develop massive subsoil structure creates problemswith slow drainage . <strong>The</strong>y require artificial drainage for successfulproduction <strong>of</strong> common field crops . Grain corn, soybeans<strong>and</strong> spring grain are grown on drained Toledo soils .

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