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Comparison of Yield, Nutrient Solution Changes and Nutritional Status of GREENHOUSE TOMATO GROWN IN RECIRCULATING AND NON-RECIRCULATING NUTRIENT SOLUTION SYSTEMS



Comparison of Yield, Nutrient Solution Changes and Nutritional Status of GREENHOUSE TOMATO GROWN IN RECIRCULATING AND NON-RECIRCULATING NUTRIENT SOLUTION SYSTEMS



Journal of Plant Nutrition 34(9-11): 1473-1488



Studies were carried out in the years 2005-2007 with greenhouse tomato (Lycopersicon esculentum Mill.) cv. 'Emotion F(1)' 'grown in rockwool with the recirculating and non-recirculating nutrient solution systems. No significant differences were found in yields of fruits in both systems. In the recirculating system them was more intensive accumulation of sodium (Na), calcium (Ca), chloride (Cl), and zinc (Zn) in the root environment. Leaves of tomato grown in the recirculating nutrient solution system showed a higher content of Ca, magnesium (Mg), and Zn. There were no differences in. the contents of nitrates and nitrites in fruits. In the recirculating system, the following savings were recorded: 42.5% of water and (in %): 42.1 nitrogen (N)-ammonium (NH(4)), 56.0 N-nitrate (NO(3)), 31.4 phosphorus (P), 52.1 potassium (K), 63.5 Ca, 47.9 magnesium (Mg), 49.4 sulfur (S)- sulfate (SO(4)), 51.9 Cl, 50.9 iron (Fe), 47.9 Zn, 24.6 manganese (Mn), 53.3 copper (Cu) and 47.2 boron (B). A high effectiveness in decreasing of bacteria number in drain. water by UV irradiation was found.

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Accession: 066253145

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DOI: 10.1080/01904167.2011.585204


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