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Uptake by perennial ryegrass of iodide, elemental iodine and iodate added to soil as influenced by various amendments
Author(s) -
Whitehead Davi D. C.
Publication year - 1975
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740260317
Subject(s) - iodate , iodine , iodide , chemistry , loam , perennial plant , agronomy , environmental chemistry , soil water , inorganic chemistry , soil science , environmental science , biology , organic chemistry
Perennial ryegrass was grown in pots in a sandy loam soil, into which iodide, elemental iodine or iodate had been incorporated at a rate of 20 mg I/kg. The uptake of iodine into the herbage was much greater from iodate than from the other two forms. Replacement of 5 % of the soil by well‐decomposed farmyard manure reduced uptake from all three forms of iodine more than ten‐fold. Similar replacement by chalk reduced uptake from iodide but increased uptake from iodate. The recovery of added iodine in three successive harvests of ryegrass ranged from 0.03% for elemental iodine in combination with soil + FYM to 2.16% for iodate in combination with soil + chalk.