Soil Acidity

Some articles on soil, soil acidity, acidity, soils:

Soil Biodiversity - Soil Management and Biodiversity - Soil Process Impacts
... Soil acidification Soil acidity (or alkalinity) refers to the concentration of hydrogen ions (H+) in the soil ... Measured on the pH scale, soil acidity is an invisible condition that directly affects soil fertility and toxicity by determining which elements in the soil are ... Soil acidity increases (soil acidification) by removal of agricultural product from the paddock, leaching of nitrogen as nitrate below the root zone ...
Sources of Soil PH - Soil Acidity
... Acidity in soils comes from H+ and Al3+ ions in the soil solution and sorbed to soil surfaces ... of H+ in solution, Al3+ is important in acid soils because between pH 4 and 6, Al3+ reacts with water (H2O) forming AlOH2+, and Al(OH)2+, releasing extra H+ ions ... other processes contribute to the formation of acid soils including rainfall, fertilizer use, plant root activity and the weathering of primary and secondary soil minerals ...
Agriculture In England - Land
... Main article Soil Soil is a complex mix of mineral and organic components, produced when rock is weathered and acted on by living organisms ... Most British soils are 2% to 5% organic and 95% to 98% mineral, but soils such as peat may contain up to 50% organic matter ... British Isles as far south as the Thames Valley, the soil has been heavily glaciated, which not only ground down the rock but redistributed the resulting matter ...

Famous quotes containing the word soil:

    But men labor under a mistake. The better part of the man is soon ploughed into the soil for compost. By a seeming fate, commonly called necessity, they are employed, as it says in an old book, laying up treasures which moth and rust will corrupt and thieves break through and steal. It is a fool’s life, as they will find when they get to the end of it, if not before.
    Henry David Thoreau (1817–1862)