THE EFFECT OF MICROBIOLOGICAL PREPARATIONS AND MINERAL FERTILIZER DOSES ON THE STEM HEIGHT OF GREEN PEA (PISUM SATIVUM L.) PLANTS

Abstract

This scientific article investigates the effect of microbiological preparations on the stem growth of pea plants (Pisum sativum L.). The preparations Fitovak, Teria-S, Yer Malhami, as well as their combinations, were applied against three different mineral fertilizer backgrounds: P₉₀K₆₀, N₃₀P₉₀K₆₀ and N₆₀P₉₀K₆₀. Plant stem height was measured at the stages of budding, flowering, and pod formation. The highest results were observed in the variant where Teria-S was applied on the P₉₀K₆₀ background. Specifically, the stem height reached 54.9 cm at the budding stage, 70.7 cm during flowering, and 76.2 cm at the pod formation stage. Furthermore, high effectiveness was also recorded with the N₃₀P₉₀K₆₀ background when Teria-S was applied, with stem height reaching 72.8 cm during the pod formation stage. On the N₆₀P₉₀K₆₀ background, the application of Teria-S led to an increase in stem height up to 73.8 cm. In some cases, the combined use of the biostimulant Fitovak and the biological preparation Yer Malhami resulted in comparatively lower values.