Aims: The aim concerning this work was to review the effect of humic acid, applied at various concentrations and period intervals, on the herbaceous and flowering personalities of Zinnia elegans.Study Design: The experiment was designed as a complete randomized design accompanying three replications and a total of nine treatments.Place and Duration of Study: The experiment was attended at the Department of Horticulture, School of Agriculture, Lovely Professional University, Phagwara, Punjab. The study was carried out over a particular event in 2022.Methodology: The study was conducted in a shady area, place Zinnia elegans plants were subjected to foliar spraying of humic acid at three various concentrations (2.5, 3.5, and 5.0 mL/L) and at different pauses (10, 30 and 10 and 30 days both later transplanting) following in position or time transplanting. Various aspects of plant tumor, including plant climax, leaf area, root distance, branching, and blooming parameters to a degree days to flower, flourishing period, flower proportion, and number of flowers per plant were observed.Results: The results accompanied that foliar application of humic acid at a aggregation of 3.5 mL/L in 10 and 30 days after establishiing significantly raised plant climax, leaf area, root distance, branching, flower magnitude, and number of flowers per plant. Plants treated accompanying 3.5 mL/L of humic acid exhibited the chief values for these limits distinguished to other situations and the control (water spary). The days taken to flower were too reduced in plants discussed with bigger concentrations of humic acid.Conclusion: The findings concerning this study display that foliar application of humic acid, specifically at a concentration of 3.5 mL/L in 10 and 30 days afterwards planting, absolutely influenced the fertile and flowering ranges of Zinnia elegans.
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