What question did this study set out to answer?

To evaluate the influence of organic versus inorganic hydroponic growing media on the concentrations of calcium, iron, potassium, phosphorus, and vitamin C in tomato fruit.

April 1, 1998HortScienceOpen Access

Calcium, Iron, Potassium, Phosphorus, and Vitamin C Content of Organic and Hydroponic Tomatoes

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Authors

ZPZ. PremuzicUniversity of Buenos Aires MBMartha BargielaUniversity of Buenos Aires AGAna Rosa GarcíaUniversity of Buenos Aires

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Implication

Experimental study reveals higher calcium and vitamin C but lower iron in organically grown tomatoes compared to hydroponics, indicating distinct nutritional profiles by substrate.

Key Points

To evaluate the influence of organic versus inorganic hydroponic growing media on the concentrations of calcium, iron, potassium, phosphorus, and vitamin C in tomato fruit.
Cultivated 'Platense' tomatoes (Lycopersicon esculentum Mill.) in a greenhouse across two hydroponic substrates (sand or peat-perlite irrigated with a complete nutrient solution) and two organic substrates (100% vermicompost or 50% vermicompost-50% soil irrigated with water).
Harvested fruit at physiological maturity to quantify concentrations of phosphorus, potassium, calcium, iron, and vitamin C.
Fruit grown in organic media contained significantly higher concentrations of calcium and vitamin C than fruit grown in hydroponic systems.
Hydroponically cultivated fruit exhibited significantly higher iron content compared to fruit grown in organic substrates.
Phosphorus and potassium levels did not differ significantly between organic and hydroponic substrates.

Cite This Study

Premuzic et al. (1998) studied this question.

synapsesocial.com/papers/69eb89fa05ec2570be82c92b https://doi.org/10.21273/hortsci.33.2.0255

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Implication

Experimental study reveals higher calcium and vitamin C but lower iron in organically grown tomatoes compared to hydroponics, indicating distinct nutritional profiles by substrate.

Calcium, Iron, Potassium, Phosphorus, and Vitamin C Content of Organic and Hydroponic Tomatoes

Discussion

Member takes

Implication

Key Points

Cite This Study

Calcium, Iron, Potassium, Phosphorus, and Vitamin C Content of Organic and Hydroponic Tomatoes

Discussion

Member takes

Implication

Key Points

Cite This Study

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