Potassium participates in the essential processes in plant physiology, however, the effects of K sources on plant metabolism have been little studied. Also, in certain cases, K sources and concentrations may cause undesirable effects, e.g., soil salinization. The objective was to evaluate the effect of K sources and levels on the enzyme activity of the antioxidant system and protein content in eggplant (Solanum melongena L.) leaves and to determine the most suitable K sources for these physiological characteristics. The experiment […]

Appropriate nitrogen availability during the common bean cycle is essential to ensure high grain yield and quality. This nutrient can be absorbed by the roots and leaves. However, there are still doubts about the efficiency of N leaf application and the influence on common bean grain quality. Therefore, the purpose of this study was to evaluate the effect of N sidedressing and leaf application on common bean grain yield and quality. The experiment was carried out in the dry growing […]