Iron-chelates evaluation in a calcareous soil |
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| Authors: | J L Lucena A Gárate O Carpena |
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| Institution: | (1) Department of Agricultural Chemistry, Autónoma University, Madrid, Spain |
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| Abstract: | A greenhouse pot experiment withLolium multiflorum, cv. Tetila, grown in a calcareous soil was carried out to determine the efficiency of iron-chelate (Fe-EDTA,-DTPA,-EDDHA
and Rexene) as soil amendments. In the soil solution Fe was displaced more readily from EDTA chelate and less so from EDDHA
chelate. A significant increase of Mn, Cu and Zn in the soil solution was observed, with Fe-DTPA; Cu and Zn with Fe-EDTA;
Cu with Rexene and, with Fe-EDDHA after 14 days. Plant took up more Fe from Rexene treatment than from the other treatments,
Fe-EDDHA was the least efficient. In general, Mn, Cu and Zn concentrations in the leaf diminish in all the treatments compared
with the control. |
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| Keywords: | calcareous soil copper iron iron chelates Lolium multiflorum manganese zinc |
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