soil

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Related to Mineral soil: Mineral weathering

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 ?
These studies indicated that the flow of groundwater was accompanied by an increase of peroxidase activity from 2% to 51% (from site 1 to 2) in mineral soils in all periods of sampling.
In fact, the mineral soils appear to be unchanged in the face of low-intensity surface forest fires (Richter et al.
Infiltration was not as concentrated, and preferential zones were not as obvious, although upon excavation it was apparent that dry patches or layers of organic material remained above the wetted mineral soil.
The distribution of total SOC stocks in mineral soil cover by land use, SOC quality, soil calcareousness, and vertical distribution is given in Fig.
0 g (oven-dry equivalent) of mineral soil adjusted to 60% of water-holding capacity, in 125-mL polypropylene cups covered with polyethylene (30 [micro]m), for 56 days at 25[degrees]C (Scott et al.
The SOC stocks of the SC on automorphic mineral soils range from 43 to 106 Mg [ha.
The amount of Na, K, Ca, and Mg (base cations) stored in the mineral soil fraction predetermines the status of soils, as well as in the long term, its evolution in view of anthropogenic activities (Fichter et al.
7) Implementation of the fertile layer of soil formation of humus or mineral soil mixed with sewage sludge with a thickness of 1 m - 15 176 mA, protection embankments geogrid dimensions 488 x 466 - 3 700 mA.
Among the more difficult processes to simulate in these models have been changes in litter decomposition and incorporation of litter C into the mineral soil (Halliday et al.
Since soil water repellency was observed in situ to occur only at the mineral soil surface, soil for the WDPT test was collected from the 0-0.
The range of forest services which the contracting authority intends to award over the framework agreement covers the work of preparing the surface for further cultivation of forest fires occurred cowshed area on land managed by State Forests Forest District Siewierz to reduce the potential spread of fire belt of mineral soil and plowing firebreaks.