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FlaVUH Supplement Application
The taste, quality, and combustion potential of medical plants depend on the plant’s chemical profile at harvest. Cultivation practices influence the entire growth cycle and alter those chemical characteristics. Although many growers perform a pre-harvest flushing period with plain water, current scientific studies remain skeptical and have not validated the practice. In this context, a recent trial evaluated whether supplementing with FlaVUH at 3 ml/gal alongside a salt-based fertilizer could improve outcomes. The FlaVUH-treated plants showed a 14% hydroponic yield increase (container-grown in soilless media) with no adverse effects on vegetative growth, electrical conductivity (EC), or growing-medium pH.
Key Takeaways for Hydroponic Growers
Applying 3 ml/gal FlaVUH with a salt-based nutrient program increased yield by 14% while maintaining EC and pH stability in the root zone. For growers prioritizing consistent quality and streamlined workflows, the findings highlight a path to improved productivity without additional stress on the media environment.
Methods and Materials
Root cuttings from six medical plants were transplanted into 3.5-inch square pots, one plant per pot. Plants were monitored for 15 days in the vegetative stage. Once treated plants reached acceptable height and canopy size, they were transplanted into 1.55-gal blow-molded black pots for flowering.
Plants were grown in Sunshine Six #4 (soilless mix) at a density of 0.78 plants/ft². All plants were hand-fertilized using Valenza Nutrients at manufacturer-recommended rates with a 10–20% leaching fraction. The FlaVUH supplementation rate was 3 ml/gal. The experiment, conducted in a randomized fashion, used FlaVUH supplementation as the single experimental factor.
Experimental Controls and Setup
Each of the six replicates was potted as an experimental unit. Plants were re-oriented weekly in the grow room to reduce positional effects until a trestle was used on day 12 of flowering to limit variability. Non-experimental border plants were placed along the edges of each table to standardize canopy density and minimize border effects. FlaVUH supplementation was applied to ensure growth reliability within the treatment group.
Environmental and Cultural Conditions
Photosynthetically active radiation (PAR) at the canopy was maintained at 300–500 μmol·m⁻²·s⁻¹. During vegetative growth, lighting followed an 18-hour photoperiod. In flowering, intensity was increased to 650 ± 50 μmol·m⁻²·s⁻¹ and the photoperiod was reduced to 12 hours under Gavita Pro 1650e LED fixtures. CO₂ was held at ambient 400–600 ppm. Two harvest timing statements appear in the source: “Harvard accrued 53 days into the flowering state” (as written) and “Harvest took place 63 days into the flowering stage.” Stems were clipped at soil level, and plants were hang-dried to 11–13% moisture. All floral material was removed, and leaves were further trimmed to standardize dry weight assessment.
Measurements
Canopy and plant height were measured at the end of vegetative growth. Growth index was calculated as height (cm) × length (cm) × width (cm) × 300⁻¹. During flowering, media pH and EC were measured every two weeks using the pour-through method.
Data Analysis
All data were analyzed with JMP Statistical Discovery Version 13.0 (SAS Institute Inc., Cary, NC). Unpaired tests were used to assess the impact of FlaVUH on yield, growth, and growing media parameters.
Results
Vegetative Growth
The growth index measured 55 ± 9.7 in the control and 67 ± 16.3 in the FlaVUH treatment group, indicating no adverse impact on vegetative performance.
Yield
FlaVUH supplementation produced a 14% increase in yield compared to the non-treated group.
Media pH and EC
Four measurements of pH and EC were taken. The source notes that the control group was “significantly different at P>0.1 in each case” (as reported). Overall, the study concludes FlaVUH did not alter EC or pH within the grow media.
Discussion: Practical Implications for Hydroponic Yield Increase
For hydroponic and soilless growers seeking measurable productivity gains without destabilizing the root-zone environment, this trial is notable. Integrating FlaVUH at 3 ml/gal alongside a standard salt-based nutrient program yielded a clear production benefit while maintaining EC/pH stability—key for preserving nutrient availability and root health. The randomized design, use of border plants to minimize edge effects, and standardized post-harvest procedures strengthen confidence in the reported 14% yield improvement.
Because the findings were observed in containerized soilless culture under controlled lighting, CO₂, and density, they translate well to many hydroponic settings where EC/pH consistency and predictable dry weight are critical KPIs. The data do not support or refute pre-harvest flushing; rather, they suggest that targeted supplementation can contribute to yield without compromising media chemistry.
Conclusion
FlaVUH increased yield by 14% without impacting EC or pH in the growing media. For hydroponic growers, this demonstrates a practical route to improved productivity while maintaining environmental stability—an attractive combination for scaling consistent quality.
Actionable Notes for Growers
Apply FlaVUH at 3 ml/gal with your salt-based fertilizer program; monitor standard EC/pH targets via pour-through or in-line probes as usual. Maintain vegetative and flowering photoperiods and intensities appropriate to your cultivar and system, and continue using border plants or other canopy-management strategies to reduce positional variability in trial runs.
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