About Us | Help Videos | Contact Us | Subscriptions

Soil Science Society of America Journal Abstract -

The Stability of Different Forms of Selenium Applied to Low-Selenium Soils1


This article in SSSAJ

  1. Vol. 33 No. 4, p. 571-574
    Received: Nov 18, 1969
    Accepted: Feb 20, 1969

Request Permissions

  1. Earle E. Cary and
  2. W. H. Allaway2



In some acid-to-neutral soils, water-soluble selenite salts react rapidly with the solid phase to form a relatively insoluble adsorption complex. The Se in this complex is less available to alfalfa (Medicago sativa L. ‘Dupuit’) than the Se added to the same soil as Fe(OH)3-HSeO3. In other soils, or in some acid soils limed to neutrality, the availability of Se to alfalfa from NaHSeO3 and from Fe(OH)3-HSeO3 is essentially the same. The availability of Se from Seo added to the same soils is less than from either NaHSeO3 or Fe(OH)3-HSeO3 sources. Oxidation of Seo is initially rapid in these soils, and does not seem to be pH dependent, but the rate of oxidation varies in different soils. Soluble selenite may be the most practical form of Se to add to low-Se soils in order to produce crops containing sufficient Se to meet animal requirements.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © . Soil Science Society of America