The studies were conducted in the years 1999-2001. Single seeds were sown directly into ground in the rows of 25 cm spacing. Three fertilization variants were used: a multicomponent fertilizer - Azofoska, the mixture of three one-component fertilizers - ammonium nitrate, triple superphosphate and ammonium sulphate; a by-product from „Dolna Odra” power-station (about 25% total N) supplemented with triple superphosphate and potassium sulphate. The weight proportions and doses of fertilizers were selected in such a wag that the NPK content was similar on all experimental objects. In order to evaluate the plant quality following parameters were considered: plant height and the number of shoots with inflorescences per plant, the weight of dried inflorescences, the number of corolla and calyx diameter. It was found that the kind of applied fertilizer significantly influenced the number of inflorescences and the quality of yield. By-product fertilization resulted in the greatest number of inflorescence shoots. The inflorescence shoots of poorest quality were obtained after Azofoska application. The quality of inflorescences shoots on other objects was similar.