Iron-chelates evaluation in a calcareous soil |
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Authors: | J. L. Lucena A. Gárate O. Carpena |
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Affiliation: | (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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