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 classic literature ?
By avarice and selfishness, and a grovelling habit, from which none of us is free, of regarding the soil as property, or the means of acquiring property chiefly, the landscape is deformed, husbandry is degraded with us, and the farmer leads the meanest of lives.
Well," she said, smiling, for in her own heart she could not help studying this double love of the prisoner for herself and for the black tulip, "I have done things on a large scale; I have prepared a bed as you described it to me, on a clear spot, far from trees and walls, in a soil slightly mixed with sand, rather moist than dry without a fragment of stone or pebble.
It is but a group of hollows, craters, circles, a network of crests; then, as far as the eye could see, a whole volcanic network cast upon this encrusted soil.
Inaccessible and wonderfully extended over this soil covered with picturesque projections
We'll never be goin' around smellin' out an' swipin' bits of soil an' carryin' it up a hill in a basket.
As regarded the appropriation of the soil, the facility of communication, the rapidity of transport, the claims of both States were evenly balanced.
The soil is becoming hilly and portends mountains not far off.
Dubai: Kids visiting Dubai's Kite Beach this weekend can turn soil scientists for a day and learn about soil conservation in a fun and engaging way.
As a result, a large portion of global soil respiration is created by agricultural land utilization (5.
All the plants are relying on the soil for mineral nutrients supply, and then ruminants obtain the majority of their mineral nutrients from plants grown on these soils.
Currently, most of what is known about aided phytostabilization of heavy metal-contaminated soils focuses on analysis of physicochemical soil properties, especially concentration of bioavailable forms of metals/ metalloids and their accumulation in plant tissues (Wilde et al.
My perspective on soil health is rooted in a field study I conducted when I was a research soil scientist with ARS (Agricultural Research Service)," Honeycutt says.