soil

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soil

(soyl),
Dirt.

soil

the uppermost layer of the earth's crust that supports the majority of terrestrial plant life together with many animals and microorganisms. Soil derives from the erosion of the rock strata and contains minerals and variable amounts of organic material derived from organisms which live or have lived upon it. Soils are affected by climate, living organisms, parent rock, relief, groundwater and age, and usually contain various ‘horizons’, the succession of which is called the ‘soil profile’. MULL soils tend to be alkaline and ‘Mor’ soils acid. Soils may be heavy clay, loam (sand and clay), peaty (large amounts of dead plant material), chalky light or sandy

soil

the earth, origin of all plant growth and the basis of all animal agriculture. Its characteristics of chemical composition, physical structure, especially porosity and water retaining capacity, its humus content, pH and salinity exert enormous effects on its productivity.

soil analysis
an essential activity in densely farmed farms. Measures the soil content of total and available amounts of each of the important soil minerals.
soil contaminated herbage
either from dust storms or in loose soil by hoof movement may contribute to dental attrition in sheep, or sand colic in horses.
soil eating
a form of pica; caused by salt deficiency.
soil fumigants
are used to prepare fields for planting and may cause poisoning in animals grazing them or eating crops harvested from them. See methyl bromide.
soil type
includes clay, sand, loam.
References in periodicals archive ?
Landform and soil type generally affected the chemical properties and enzymatic activities significantly (Table 3).
where: P is the perimeter of soil type patch; A is the area of soil type patch; C is a constant; D is the fractal dimension of the given soil type.
Soil type and treatment effects on phosphorus and suspended sediment loads in runoff
For test plants, there was no significant interaction between effects of flooding and soil type on the numbers of live/total larvae (F = 3.
Both groundnut cultivars did not nodulate in this soil type (Fig.
number of seeds, plant height, and numbers of flowers) of plants growing in the various soil types show significant differences.
Five soils, representing four important soil types in Estonia, Rendzic Leptosol (Rendzinas), Podzol (Sod-podzolic), Podzoluvisol (Brown pseudopodzolic), and Podzolic Gleysols (Gley-podzols), were investigated (Table 1).
Knowing your soil type is important because even the most difficult soil can produce a good garden if it is enriched with organic matter.
By accounting for soil type, vegetation type, topography, evapotranspiration rates, and precipitation, one may continuously simulate surface pooling in space and time.
They have also checked the soil type found on security guard Michelle's car against the earth around Edgbaston Reservoir in Ladywood.