Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 408280
Title Performance of Soil-Applied FeEDDHA Isomers in Delivering Fe to Soybean Plants in Relation to the Moment of Application
Author(s) Schenkeveld, W.D.C.; Reichwein, A.M.; Bugter, M.H.J.; Temminghoff, E.J.M.; Riemsdijk, W.H. van
Source Journal of Agricultural and Food Chemistry 58 (2010)24. - ISSN 0021-8561 - p. 12833 - 12839.
Department(s) Chair Soil Chemistry and Chemical Soil Quality
Publication type Refereed Article in a scientific journal
Publication year 2010
Keyword(s) ferric-chelate reductase - iron chlorosis - calcareous soil - cucumber plants - acid o,p-eddha - strategy-i - eddha - behavior - fe(o,o-eddha) - fertilizers
Abstract FeEDDHA (iron(3+) ethylenediamine-N,N-bis(hydroxyphenylacetic acid) products are commonly applied to mend and prevent Fe deficiency chlorosis in soil-grown crops. Plants mainly take up Fe in the progressed vegetative and in the reproductive stages. This study examined which of the principal constituents of FeEDDHA products (the isomers racemic o,o-FeEDDHA, meso o,o-FeEDDHA, and o,p-FeEDDHA), most effectively meets the Fe requirements of soybean plants (Glycine max (L.) Merr.) grown on calcareous soil in the aforementioned growth stages. FeEDDHA isomers were applied once, separately or in mixtures, at t = 0, in the progressed vegetative stage or in the reproductive stage. o,p-FeEDDHA did not significantly contribute to Fe uptake in either growth stage. Both racemic and meso o,o-FeEDDHA were effective in supplying plants with Fe, approximately to the same extent. The moment of application had a significant effect on yield and FeEDDHA pore water concentrations at harvest, but not on Fe uptake. To optimize yield while minimizing FeEDDHA dosage, FeEDDHA is best applied to soybean plants prior to the onset of chorosis.
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