|Authors: ||F. Okturen Asri, S. Sonmez|
|Keywords: ||Lycopersicon esculentum, greenhouse, hydroponics, macronutrients, micronutrients|
The aim of this study was to investigate effect of K applications on plant Fe uptake and effects of K and Fe applications on mineral nutrition of tomato plants grown in soilless culture.
Different combinations of potassium (150, 300, 450 mg L-1) and iron (1, 2, 3 mg L-1) ratios were evaluated.
Results showed that N concentration of plant was increased by K application while iron applications were decreased.
There were no effects of K and Fe applications on P, Ca, Mg, Zn, Mn concentrations of stem, and P, Mn concentrations of leaf.
K concentrations of plant were increased by K applications.
Fe concentration of plant was not affected by K applications.
Leaf Ca and Mg concentrations decreased depending on K and Fe aplications.
As a result, high level of K and Fe applications caused antagonistic effect on nutrient uptake and resulted in imbalance on mineral nutrition of tomato plants.
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