12.07.2015 Views

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

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

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

SHOW MORE
SHOW LESS
  • No tags were found...

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

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

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!