Use of certain fertilizers in Petunia (Petunia hybrida)
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Author: Nevena Stoeva, Yordanka Kartalska, Valeria Ivanova
The Agriful and Planta fertilizers provided better results in terms of fresh mass of plants and leaves, as well as the photosynthetic leaf area. The photosynthesis and transpiration rates were increased. The amount of anthocyanins was increased to a slightly lesser extent. Agriful (applied in concentration of 5 ml/l) showed higher activity of the enzyme nitrate reductase, as well as higher number, mass and diameter of the flowers. A positive effect was proved afterthe soil application of Agriful on the bacterial community, actinomycetes and microscopic fungi. The changes in the number of the microorganisms after the application of Planta were lower than after the treatment with Agriful.