Effects of Vermi-compost and Two Bacterial Bio-fertilizers on some Quality Parameters of Petunia
The present research was conducted to study the effect of vermi-compost and two bio-fertilizer applications on growth, yield and quality of petunia (Petunia hybrida). The experiment laid out in randomized block design with 3 replications and 9 treatment combinations composing of vermi-compost, bio-fertilizers and NPK fertilizer. The treatment receiving Azospirillum sp. + Phosphate solubilizing bacterium + Vermicompost + NPK (25% of recommended dose) recorded the highest plant height, number of branches, plant spread, leaf area index, dry matter accumulation and yield attributes such as number of flowers per plant, number of flowers per plot, flower yield/plant, flower yield/plot. The early flower bud initiation, 50 percent flowering and more flowering duration was achieved in the treatment receiving Azospirillum sp. + Phosphate solubilizing bacterium + Vermicompost + NPK (25% of recommended dose). Application of Azospirillum sp. + Phosphate solubilizing bacterium + Vermicompost + NPK (25% of recommended dose) registered significantly higher quality parameters such as flower diameter.
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