Olives (Jaén, Spain)

Study details

• Research institution: Juan Vilar Consultores Estratégicos (MSc. Isabel Raya Garcia)
• Date: 2023-2026
• Location: Baeza, Jaén, Spain
• Soil: Clayey soil
• Fertilizers: Granubor^® and Solubor^®
• Trial design: Randomized complete block with three repetitions in a traditional irrigated olive plantation, with an area of 7.98 hectares.

Study results

Boron treatments exhibit higher values of wet fat and industrial yield than the control. The Granubor (200 g/olive tree), Solubor (0.3%), and Granubor (100 g/olive tree) + Solubor (0.3%) treatments had the highest oil yields. There is an inverse relationship between fruit moisture and fat content—a common behavior in olives during ripening.

These trends suggest that boron could indirectly influence oil accumulation, possibly through its role in:

• Carbohydrate metabolism
• Sugar transport
• Reproductive processes and fruit development

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Resources

• Crop guide: Olives
• Granubor
• Solubor
• European regional solutions