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Selenium Concentrations in Alfalfa from Several Sources Applied to a Low Selenium, Alkaline Soil
Author(s) -
Carter D. L.,
Brown M. J.,
Robbins C. W.
Publication year - 1969
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1969.03615995003300050027x
Subject(s) - selenium , loam , livestock , environmental chemistry , chemistry , ferric , agronomy , environmental science , soil water , inorganic chemistry , soil science , biology , ecology , organic chemistry
Two laboratory‐prepared ferric hydroxy bi‐selenites and CuSeO 3 applied to Portneuf silt loam in the field provided slowly available Se to alfalfa, resulting in Se concentration adequate but nontoxic for livestock. These materials have potential as Se fertilizers at low application rates. The ferric hydroxy bi‐selenites offer little or no advantage over CuSeO 3 . Se from BaSeO 4 alone, BaSeO 4 ‐BaSO 4 mixtures, and CuSeO 4 was absorbed by alfalfa in concentrations toxic to livestock. A small fraction of applied elemental Se was available immediately after application, providing adequate Se to alfalfa for livestock. The remaining elemental Se was rather inert, and supplies only slightly more Se to alfalfa than did the untreated soil the year following application.