Soil chemistry Soil chemistry Calcareous refers to a sediment, sedimentary rock, or soil type which is formed from or contains a high proportion of calcium carbonate in the form of calcite or aragonite. ...more on Wikipedia about "Calcareous"
Effective Microorganisms (有用・微生物群, "Yūyō・Biseibutsugun") or EM is a technology first coined by Dr. Teruo Higa (比嘉照夫博) of Japan. The technical translation from Japanese to English is "Effective Microorganisms". It is known generically as "beneficial and efficient or effective microorganisms technology". People refer to it descriptively as "EM Technology" or simply "EM". EM was first brought to the market in 1982. Dr. Higa's students started EM Research Organization in 1994 and Sustainable Community Development, LLC in 1998 to expand the use of the technology to over 120 countries. Only official products carry the "Mother Culture EM Inside" logo or EM Logo, a series of green dots with the letters "EM" in the largest circle. ...more on Wikipedia about "Effective Microorganisms"
A reducing environment is one chacterized by little or no free oxygen (dissolved or as a gas). In chemistry, reduction is the reverse of oxidation. That is, the oxidation state of an atom (independent or within a molecule) is reduced by the addition of electrons. A reduced gas is thus hydrogen-rich. ...more on Wikipedia about "Reducing environment"
Soil pH is an indication of the alkalinity or acidity of soil. It is based on the measurement of pH, which is based in turn on the concentration of hydrogen ions (H+) in a water or salt solution.
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Weathering is the process of decomposition and/or disintegration of rocks, soils and their minerals through natural, chemical, and biological processes. It is not to be confused with erosion, which is the movement of rocks and/or weathering products by water, wind, ice or gravity. ...more on Wikipedia about "Weathering"
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