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Journal of Plant Nutrition Volume 25, 2002 - Issue 11
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Original Articles

HUMIC SUBSTANCES AND AMINO ACIDS IMPROVE EFFECTIVENESS OF CHELATE FeEDDHA IN LEMON TREES

Antonio Sánchez-Sánchez Department of Agrochemistry and Biochemistry, University of Alicante, P.O. Box 99, Alicante, 03080, SpainCorrespondence[email protected]
,
Juan Sánchez-Andreu Department of Agrochemistry and Biochemistry, University of Alicante, P.O. Box 99, Alicante, 03080, Spain
,
Margarita Juárez Department of Agrochemistry and Biochemistry, University of Alicante, P.O. Box 99, Alicante, 03080, Spain
,
Juana Jordá Department of Agrochemistry and Biochemistry, University of Alicante, P.O. Box 99, Alicante, 03080, Spain
&
Dolores Bermúdez Department of Agrochemistry and Biochemistry, University of Alicante, P.O. Box 99, Alicante, 03080, Spain
Pages 2433-2442 | Published online: 14 Feb 2007
 
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ABSTRACT

Lemon trees cv. Fino were fertilized with mixtures of FeEDDHA and humic compounds (leonardite) or aminoacids. All the treatments improved the iron (Fe) uptake respect to a control fertilized only with FeEDDHA. The effect was more marked with humic substances (HS). The copper (Cu) uptake also increased, which can be a direct effect of the organic compounds, or indirect as a consequence of the release of EDDHA after Fe uptake. Humic compound also improved fruit weight. Vitamin C was affected by all the treatments depending on the ripening condition of the lemons (in a cold chamber or in the field).

Acknowledgments

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