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Copy link BEOZ® in Strawberries
better fruit firmness
Langförden, Germany 2025
better fruit firmness
Key Conclusions
For optimal increases in yield and quality alongside robust plant vitality, BEOZ® Flintstone and BEOZ® Sard represent the most effective options for supporting strawberries beyond standard fertilization.
Application Guidelines:
- BEOZ® Sard is highly recommended for both June-bearing and everbearing (day-neutral) varieties.
- BEOZ® Flintstone demonstrated its greatest potential when applied during the establishment phase and on June-bearing varieties.
- The best results were achieved through repeated foliar applications every 10–14 days at a rate of 2–3 L/ha.
Objective
In this field trial conducted at the Esteburg Research Station, the effects of the biostimulants BEOZ® Sard and BEOZ® Flintstone on the quality and yield of strawberries were evaluated. The trial utilized a randomized complete block design (RCBD) with 32 plants per plot.
Treatments
Application Timings: The trial consisted of five applications on the following dates:
August 21, 2024; September 5, 2024; April 4, 2025; April 24, 2025; and May 9, 2025.
Application Rates:
- BEOZ® Flintstone: 3 L/ha
- BEOZ® Sard: 2.5 L/ha
Application Method: Treatments were applied as a foliar spray using a backpack sprayer. These biostimulant applications were supplemental to a standard fertigation program utilizing Agrolution Special 316, Agrolution Special 324, Magnesium Nitrate, and Ammonium Nitrate.
Note: BEOZ® Flintstone is currently available exclusively for the German market. Contact your local ICL representative for regional biostimulant alternatives.
Treatments
Application Timings: The trial consisted of five applications on the following dates:
August 21, 2024; September 5, 2024; April 4, 2025; April 24, 2025; and May 9, 2025.
Application Rates:
- BEOZ® Flintstone: 3 L/ha
- BEOZ® Sard: 2.5 L/ha
Application Method: Treatments were applied as a foliar spray using a backpack sprayer. These biostimulant applications were supplemental to a standard fertigation program utilizing Agrolution Special 316, Agrolution Special 324, Magnesium Nitrate, and Ammonium Nitrate.
Note: BEOZ® Flintstone is currently available exclusively for the German market. Contact your local ICL representative for regional biostimulant alternatives.
Results
This trial evaluated the impact of the biostimulants BEOZ® Sard and BEOZ® Flintstone on both the fruit firmness and marketable yield of strawberries.
Enhanced Fruit Firmness
Measured in g/mm, the BEOZ® Flintstone treatment achieved a higher fruit firmness (321 g/mm) compared to the untreated control. BEOZ® Sard delivered even greater results, reaching 330 g/mm, representing a 6% increase in firmness over the control group.
Increased Marketable Yield
Simultaneously, the impact on marketable yield was recorded, with BEOZ® Flintstone delivering the highest overall yield increase. With an average weight of 428 g/plant, the marketable yield was approximately 11% higher than the untreated control. The BEOZ® Sard treatment also showed strong performance, with a yield of 420 g/plant, representing a 9% increase over the control group (386 g/plant).
