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

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

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Gobles soils were frequently mapped incombination with Kelvin (KE) soils .L<strong>and</strong> Use/Management CommentsGobles soils, including those with loamy orcoarse phases, are rated Class 2D for commonfield crops when topography is not a limitation .Gobles washed phase soils are rated Class 1 .Gobles soils in general are suitable for a fairlywide range <strong>of</strong> special crops if the surface slopesare not too steep . <strong>The</strong>ir suitability increases formany special crops if they are tile drained .Suitability ratings for selected special crops aregiven in Tables 6, 7, <strong>and</strong> 8.Gobles soils, especially those with fine texturedsurface materials, are susceptible to compaction .Care should be taken, therefore, not to use heavymachinery when they are too wet. Acrop rotationwhich includes a forage crop . will aid inmaintaining soil structure . Gobles soils with fineor medium textured surface materials are alsosusceptible to water erosion . Planting cover crops<strong>and</strong> maintaining high crop residue levels will aidin reducing the risk <strong>of</strong> erosion by water.Gobles soils with medium or coarse texturedsurface materials should be considered forconservation tillage practices. Conventional tillagepractices, however, are likely best on fine texturedGobles soils to improve structure <strong>and</strong> enhancedrainage .Granby <strong>Soils</strong> (GY)L<strong>and</strong>form <strong>and</strong> TopographyGranby soils have developed on blankets <strong>of</strong>coarse textured lacustrine materials . <strong>The</strong>y usuallyoccur in low-lying or depressional positions inl<strong>and</strong>scapes which have nearly level topography.Slopes are less than 2% .Soil Moisture CharacteristicsGranby soils are poorly drained due to highwater table levels which occur in the subsoilhorizons for prolonged periods <strong>of</strong> time each year.<strong>The</strong>y are usually rapidly permeable <strong>and</strong> have lowwater holding capacities . Surface run<strong>of</strong>f is slow .General Soil Characteristics<strong>The</strong> Ap horizons usually have s<strong>and</strong>y loam orloamy s<strong>and</strong> textures . <strong>The</strong> subsoil Bg <strong>and</strong>calcareous Ckg horizons tend to have higher s<strong>and</strong>contents <strong>and</strong> s<strong>and</strong> or loamy s<strong>and</strong> textures .Gray gley colours are dominant within thepr<strong>of</strong>ile, <strong>and</strong> prominent dark yellowish brown tostrong brown mottles also are present. Soilreaction ranges from neutral in theAp horizons, tomildly alkaline in the Ckg horizons . Soilclassification is typically Orthic Humic Gleysol .Soil VariabilityGranby soils were most <strong>of</strong>ten mapped incombination with Brady (BY) soils in l<strong>and</strong>scapeswhere the blankets <strong>of</strong> s<strong>and</strong>y materials tend to beconsiderably deeper than 100 cm.L<strong>and</strong> Use/Management CommentsGranby soils require tile drainage in order toreach their potential capability for common fieldcrop production . <strong>The</strong>y are rated Class 3W. Duemainly to wetness limitations, they have limitedsuitability for most special crops if they are not tiledrained . <strong>The</strong>ir suitability increases for a widerange <strong>of</strong> special crops, however, if they are tiledrained . Suitability ratings for selected specialcrops are given in Tables 6, 7, <strong>and</strong> 8.Compaction can occur in Granby soils if theyare too wet . Care should be taken, therefore,when using heavy machinery. Conservationtillage practices, particularly no-till practices forfall crops, should be considered for these soils .Highgate <strong>Soils</strong> (HI)L<strong>and</strong>form <strong>and</strong> TopographyHighgate soils have developed on 40 to 100 cmthick veneers <strong>of</strong> coarse textured lacustrinematerials which are underlain by gravelly coarsetextured lacustrine beach materials . <strong>The</strong> uppers<strong>and</strong>y materials are <strong>of</strong>ten wind modified . <strong>The</strong>yfrequently occur on mid <strong>and</strong> lower slope positions<strong>of</strong> beach ridges which are located near the flanks<strong>of</strong> terminal moraines . Slopes are usually less than5% .Soil Moisture CharacteristicsHighgate soils are imperfectly drained <strong>and</strong>rapidly permeable . <strong>The</strong> imperfect drainageconditions associated with these soils are due tohigh water table levels which occur mainly in thewinter <strong>and</strong> early spring. <strong>The</strong>y have low waterholding capacities <strong>and</strong> slow surface run<strong>of</strong>f.General Soil Characteristics<strong>The</strong> Ap, Bm, <strong>and</strong> Bmgj horizons whichcommonly occur usually have s<strong>and</strong>y loam, fines<strong>and</strong>y loam, or loamy fine s<strong>and</strong> textures . Clayenriched Btgj horizons, which usually have s<strong>and</strong>yloam or fine s<strong>and</strong>y loam textures, frequently occurabove the calcareous IICkgj horizons . <strong>The</strong> IICkgj37

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