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soil reaction

См. также в других словарях:

  • Soil map — is a map showing distribution of soil types and/or soil properties (soil pH, textures, organic matter, depths of horizons etc.) in the area of interest. It is typically the end result of a soil survey inventory, i.e. soil survey. Soil maps are… …   Wikipedia

  • Reaction wood — forms when part of a woody plant is subjected to mechanical stress, and helps to bring parts of the plant into an optimal position. This stress may be the result of wind exposure, snow buildup, soil movement, etc. The reaction wood is not… …   Wikipedia

  • soil — soil1 soilless, adj. /soyl/, n. 1. the portion of the earth s surface consisting of disintegrated rock and humus. 2. a particular kind of earth: sandy soil. 3. the ground as producing vegetation or as cultivated for its crops: fertile soil. 4. a… …   Universalium

  • reaction — re|ac|tion W2S2 [riˈækʃən] n ▬▬▬▬▬▬▬ 1¦(to a situation/event)¦ 2¦(moving quickly)¦ 3¦(to food/drugs)¦ 4¦(science)¦ 5¦(change)¦ 6¦(against change)¦ ▬▬▬▬▬▬▬ 1.) ¦(TO A SITUATION/EVENT)¦ [U and C] something that you feel or do because of something… …   Dictionary of contemporary English

  • ion-exchange reaction — ▪ chemical reaction Introduction       any of a class of chemical reactions between two substances (each consisting of positively and negatively charged species called ions (ion)) that involves an exchange of one or more ionic components.… …   Universalium

  • Acid sulfate soil — Acid sulfate soils are naturally occurring soils, sediments or organic substrates (e.g. peat) that are formed under waterlogged conditions. These soils contain iron sulfide minerals (predominantly as the mineral pyrite) or their oxidation… …   Wikipedia

  • Acid-alkali reaction — An acid alkali reaction is a special case of an acid base reaction, where the base used is also an alkali. When an acid reacts with an alkali it forms a metal, salt and water. Acid alkali reactions are also a type of neutralisation reaction.In… …   Wikipedia

  • Serpentine soil — Serpentine soils are soils derived from ultramafic rocks, in particular serpentinite, an ultramafic rock formed by the hydration and metamorphic transformation of ultramafic rock from the Earth s mantle. The soils derived from ultramafic bedrock… …   Wikipedia

  • acid–base reaction — ▪ chemistry Introduction       a type of chemical process typified by the exchange of one or more hydrogen ions, H+, between species that may be neutral (molecules, such as water, H2O; or acetic acid, CH3CO2H) or electrically charged (ions, such… …   Universalium

  • Schikorr reaction — iron(II) hydroxide, Fe(OH)2, the start reagent of the Schikorr reaction …   Wikipedia

  • Polymerase chain reaction inhibitors — PCR inhibitors usually affect PCR through interaction with DNA or interference with the DNA polymerase. Inhibitors can escape removal during the DNA purification procedure by binding directly to single or double stranded DNA.[1] Alternatively, by …   Wikipedia

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