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Soil Science Society of America Journal Abstract -

Grass Cycling of Calcium, Magnesium, Potassium, and Sodium in Solodization1


This article in SSSAJ

  1. Vol. 35 No. 2, p. 309-311
    Received: Nov 19, 1970
    Accepted: Nov 24, 1970

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  1. E. M. White2



Insufficient Na is cycled to the soil surface by the blue grama (Bouteloua gracilis), buffalograss (Buchloe dactyloides), western wheatgrass (Agropyron smithii), and bromegrass (Bromus inermis) to retard the solodization of a solonetz soil. Sodium, Ca, and Mg contents in plant tops were about the same as in the roots, while tops contained more K than the roots. The ratio of Ca to Mg in the plants was less than the ratio of exchangeable Ca to exchangeable Mg in the soil. Proportionately more Mg than Ca is cycled to the upper part of the soil by these plants. This cycling may be a factor in the genesis of solodized soils with considerable exchangeable Mg.

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