EFFECT OF CHLORIDE ANIONIC STRESS ON THE YIELD AMOUNT AND SOME QUALITY PARAMETERS OF STRAWBERRY (Fragaria ananassa)

Imre VÁGÓ¹ – László TOLNER² – Jakab LOCH¹

1 Department of Agricultural Chemistry and Soil Science, Faculty of Agricultural Sciences, University of Debrecen, H-4032 Debrecen, Böszörményi street 138. vago@agr.unideb.hu, loch@agr.unideb.hu

2 Department of Soil Science and Agricultural Chemistry, Szent István University, H-2103 Gödöllő. tolner.laszlo@gmail.com

Abstract: To study the effect of chloride stress, and potassium and magnesium supply of soils, we set up field trials on acidic sandy soil with different fertilizers, such as potassium chloride, potassium sulphate and Patentkali (which contains both of magnesium sulphate and potassium sulphate). It was stated, that the application of the potassium chloride was ineffective on the strawberry yield. The most favourable conditions for the berry development were ensured by the joint treatments with potassium sulphate and magnesium sulphate. Nutrients applied in form of sulphate inhibited the uptake of chloride ions. It is presumable, that the decrease in the chloride ion content of plants contributed to the yield and quality increment.

Keywords: strawberry, yield and quality, chloride stress, potassium chloride, potassium sulphate, Patentkali