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Open Access Publications from the University of California

Department of Plant Sciences

UC Davis

Copper fertilization in citrus seedlings


The present experiment aimed at evaluating copper supply in five treatments (T1 – control, T2 – copper oxychloride (1.8 g L-1), T3 - cuprous oxide (500 g L-1), T4 - copper chelate EDTA (0.04 mL L-1), T5 - copper sulfate (2.5g L-1)). Plant mean height (cm), rootstock mean diameter (mm), shoot and root dry matter mass (g), and mean copper content in leaves were evaluated monthly. There were no significant differences for the analyzed variables, except for mean copper content, which was highly excessive in treatments 2 and 3 but did not affect plant development during the experiment.

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