** Soil fertility

* Soil Science – study of soil as a natural resource on the surface of the earth including soil formation, classification and mapping ; physical, chemical, biological, and fertility properties of soils ; and these properties in relation to the use and management of soils.

Soil science is the study of soil as a natural resource on the surface of the earth including soil formation, classification and mapping ; physical, chemical, biological, and fertility properties of soils ; and these properties in relation to the use and management of soils.

* Soil fertility / Nutrient management

Soil fertility is maintained by the use of green manures and composted vegetable matter and minerals.

Soil fertility limits carbon sequestration by forest ecosystems in a CO < sub > 2 </ sub >- enriched atmosphere.

C3. 3 Soil fertility and plant nutrition.

Soil fertility is a complex process that involves the constant cycling of nutrients between organic and inorganic forms.

Soil depletion occurs when the components which contribute to fertility are removed and not replaced, and the conditions which support soil's fertility are not maintained.

# Soil problems ( erosion, salinization, and soil fertility losses )

Soil properties such as fertility, temperature, and structural stability are partial determinants of the ability of white spruce to grow in the extreme northern latitudes.

Soil composition is quite equalized and fertility is naturally high.

Soil type, drainage, or degree of slope can make the difference between good crops and poor ones.

Soil biology and chemistry can be seriously damaged by acid rain.

Soil chemistry can be dramatically changed when base cations, such as calcium and magnesium, are leached by acid rain thereby affecting sensitive species, such as sugar maple ( Acer saccharum ).

Soil moisture can be measured in various ways ; by capacitance probe, time domain reflectometer or Tensiometer.

The Climate, Soil, and Sea provide everything that can be expected from them.

According to the Soil Association, the total copper that can be applied to organic land is 6 kg / ha / year.

Soil forms a structure filled with pore spaces and can be thought of as a mixture of solids, water, and air ( gas ).

Soil factors such as density, depth, chemistry, pH, temperature and moisture greatly affect the type of plants that can grow in a given location.

Soil building and pest population management benefits can be further utilized with different complexities of crop rotation.

Soil salinity can be reduced by leaching soluble salts out of soil with excess irrigation water.

From the FAO / UNESCO Soil Map of the World the following salinised areas can be derived.

Soil of the Town is generally clay loam and somewhat difficult to cultivate, but heavy crops of wheat can be grown on the land, thus giving the Town its name-Wheatfield.

* Soil analysis, such as determining pH, can help to confirm the presence of physiological disorders.

Soil steaming can be used as an ecological alternative to chemicals for soil sterilization.

Soil failure can also occur due to earthquake-induced landslides in steep terrain.

Much of this is oriented towards the use of herbicides, the majority of which may not be acceptable to the organic producer ( apart from non-synthetic substances like sulphur, which in some circumstances are accepted within Soil Association standards ) but in most cases there are manual techniques that can be used such as digging out the roots, mulching out or carefully timed cutting before seeds are able to spread.

Soil that are high in calcium minerals, for example, can be given green manure to generate a higher phosphate content in the soil, which in turn acts as a fertilizer.

Soil erosion is a process that can irreparably reduce the productive capacity of an agroecosystem.

Soil failure can occur on a slope, a slope failure or landslide, or in a flat area due to liquefaction of water-saturated sand and / or mud.

In May 2005, McKeith was given the Best Organic Businesses 2005 Consumer Education Award by the Soil Association, a British charity promoting organic food, in recognition of her work in " tackling obesity, championing healthier eating and promoting the contribution that organic fruit, vegetables and other products can make to sound nutrition.

Soil classification can be approached from the perspective of soil as a material and soil as a resource.

A number of Borsodi's texts can be found in the Social Criticism section of the Soil and Health Online Library.

Soil and sand carried through a culvert can wear away the galvanizing of a steel culvert, allowing it to corrode and eventually collapse, disrupting the road or railway above it.

Soil in good tilth is loamy, nutrient-rich soil that can also be said to be friable because optimal soil has a mixture of sand, clay and organic matter that prevents severe compaction.

Sprague defeated incumbent Democrat Charles E. Stuart to be elected as a Whig, though he is sometimes also identified with the Free Soil Party, from Michigan's 2nd District to the Thirty-first Congress, serving March 4, 1849 – March 3, 1851.

Soil contamination is sometimes related to such surface runoff, but more importantly is associated with soil contamination from underground fuel tanks or auto servicing operations which commonly are ancillary uses of car wash sites — but not an issue for car washing itself.

Soil erosion ( especially from agricultural activity ) is considered to be the leading global cause of diffuse water pollution, due to the effects of the excess sediments flowing into the world's waterways.

Though he did vote against the admission of Missouri as a slave state, and though he would be the nominated presidential candidate of the Free Soil Party, an anti-slavery political party, in 1848, there was no ambiguity in his position on the abolition of slavery during his term of office.

Soil is commonly referred to as " earth " or " dirt "; technically, the term " dirt " should be restricted to displaced soil.

Soil is said to be formed when organic matter has accumulated, and colloids washed downward, leaving deposits of clay, humus, iron oxide, carbonate, and gypsum.

Soil is said to be formed when detectable layers of clays, organic colloids, carbonates, or soluble salts have been moved downward.

Ribosomal RNA gene sequencing of soil suggests that there may be a fourth subphylum of Ascomycota ( termed Soil Clone Group I or SCGI ), that has not been described in cultures or based on fruiting bodies.

The " Free Soil " Party of 1848 – 52 and the new Republican Party after 1854 demanded that the new lands opening up in the west be made available to independent farmers, rather than wealthy planters who would develop it with slaves, and force yeomen farmers onto marginal lands.

Soil degradation may also be viewed as any change or disturbance to the soil perceived to be deleterious or undesirable.

* Soil classification systems cannot be based entirely on perceptions of genesis, however, because genetic processes are seldom observed and because pedogenic processes change over time.

The current village is actually the second settlement in Mason County to be named Free Soil.

Cedar Soil Conservation Office should be given credit here as they assisted in

Soil pH should be tested, and corrected if needed, because calcium deficiency is often associated with low pH.