{'fraction_non_alphanumeric': 0.0407673860911271, 'fraction_numerical': 0.03597122302158273, 'mean_word_length': 4.327659574468085, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
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 K 2 O/6 kg of soil) and magnesium (ESTA Kieserite; 0.3 g MgO/6 kg of soil) applied together or separately to poppy on soil with good K and Mg supply on the seed yield, oil content and cadmium in the seed. Seed yields increased significantly after the application of KCl and ESTA Kieserite, respectively by 23.89% and 21.68%, as compared to the unfertilized control. Combined application of both fertilizers stimulated the yields significantly, i.e. by 15.26%. The seed oil content showed no significant changes among the treatments and ranged only between 42.1 and 43.6%. The pot production of oil in the fertilized treatments increased to 2.21–2.44 g/pot compared to 1.92 g/ pot in the unfertilized control. The Cd content in seeds was very low, there were no differences among the treatments and it ranged only between 0.204 and 0.214 mg/kg fresh matter – FM (threshold level of 1.20 mg/kg wet weight). Therefore, the application of both KCl and ESTA Kieserite fertilizers can be recommended on soils well supplied with both nutrients.