Abstract. The research was conducted in a greenhouse on gomphrena grown in peat. Flowering, height, weight of plants and decorative value were investigated. Plants were fertilized with nitrogen 1.28; 2.56; 3.84 g N·plant^-1 and potassium fertilizer: KCl; K₂SO₄; KNO₃.

The effect of nitrogen and potassium fertilization
on growth, inflorescence and decorative value
of gomphrena (Gomphrena globosa L.)

Summary

The effect of increasing doses of nitrogen and different kind of potassium fertilizer on yielding, growth and decorative value of gomphrena was investigated. The greenhouse experiment was conducted in 2 dm^-3 plastic bands with peat substrate. The obtained results indicate that a greater number of inflorescence was found while KCl and K₂SO₄ were applied rather than when KNO₃ and N doses were used. After drying the material neither lost its color nor decorative value and remained stable.