Effects of potassium and iron applications on nutrient concentrations of tomato plants grown in soilless culture
6th Balkan Symposium on Vegetables and Potatoes, Zagreb, Croatia, 29 September - 02 October 2014, vol.1142, pp.329-334, (Full Text)
- Publication Type: Conference Paper / Full Text
- Volume: 1142
- Doi Number: 10.17660/actahortic.2016.1142.50
- City: Zagreb
- Country: Croatia
- Page Numbers: pp.329-334
- Keywords: Lycopersicon esculentum, greenhouse, hydroponics, macronutrients, micronutrients, STRESS
- Akdeniz University Affiliated: Yes
Abstract
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 aPlicaions. 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.