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The Repressive Effect of Lime and Magnesia upon Soil and Subsoil Potash
Published online by Cambridge University Press: 27 March 2009
Extract
Standard English and American texts teach that liming effects a liberation of soil potash through ionic interchange. As examples we have the statement of Hall(8): “The action of lime upon potash compounds in the soil is equally marked: as the soil water carries down the dissolved calcium bicarbonate it attacks the zeolitic double silicates in the clay and some of their soluble bases, potash among them, change place with the lime and come into solution.” Similar statements, “One of the most important effects of calcium compounds is the conversion of insoluble into soluble forms of potassium…” by Van Slyke(25) and “but it also has some power to increase the solubility of phosphorus and potassium…” by Hopkins(9), have been accepted as authoritative.
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- Copyright © Cambridge University Press 1930
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