Effect of poppy (Papaver somniferum L.) fertilization with potassium and magnesium on the seed yield and its quality

In a vegetation pot experiment we explored the effect of fertilizers with potassium (KCl; 0.9 g K2O/6 kg soil) and magnesium (ESTA Kieserite; 0.3 MgO/6 applied together or separately to poppy on soil good K Mg supply seed yield, oil content cadmium in seed. Seed yields increased significantly after application KCl ESTA Kieserite, respectively by 23.89% 21.68%, as compared unfertilized control. Combined both stimulated significantly, i.e. 15.26%. The showed no significant changes among treatments ranged only between 42.1 43.6%. production fertilized 2.21-2.44 g/pot 1.92 Cd seeds was very low, there were differences it 0.204 0.214 mg/kg fresh matter - FM (threshold level 1.20 wet weight). Therefore, Kieserite can be recommended soils well supplied nutrients.