Effect of Potassium Source and Dose on Yield and Quality of Strawberry Fruit

The purpose of this research is to investigate the effect potassium fertilization source and dose on productivity quality parameters strawberry. trial was conducted in 2016-2017 at experimental greenhouse Hassan II Institute Agronomy Veterinary Sciences Rabat. Strawberry plants cultivar “San Andreas” were planted November 6th 12 liter pots equipped with a gravity fertigation system. design split-plot eight treatment combinations two fertilizer sources: 1) Potassium Sulphate for whole growing cycle (PS/PS); 2) Nitrate during vegetative period Sulfate fruit production (PN/PS) four doses: 100, 200, 300 400 kg/ha K2O replicated thrice. sulfate superior nitrate improvement strawberry fruit. sulphate improved number flowers by 16%, 21%, sugar content 3%, titrable acidity 0.5 g/L. highest yield recorded receiving as sulphate. kg K2O/ha gave also results regarding This optimum enhanced 35%, fruits produced 44%, 25% 0.9