Interaction of soil moisture and excess of boron and nitrogen on lettuce growth and quality

G. Ouzounidou, C. Paschalidis, D. Petropoulos, A. Koriki, P. Zamanidis and A. Petridis
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G. Ouzounidou: Institute of Food Technology, Hellenic Agricultural Organization "Demeter", Lycovrissi Attikis, Greece
C. Paschalidis: Technological Educational Institute of Kalamata, School of Agricultural Technology, Kalamata, Greece
D. Petropoulos: Technological Educational Institute of Kalamata, School of Agricultural Technology, Kalamata, Greece
A. Koriki: Technological Educational Institute of Kalamata, School of Agricultural Technology, Kalamata, Greece
P. Zamanidis: Institute of Vine, Hellenic Agricultural Organization "Demeter", Lycovrissi Attikis, Greece
A. Petridis: Laboratory of Soil Science and Agricultural Chemistry, Agricultural University of Athens, Athens, Greece

Horticultural Science, 2013, vol. 40, issue 3, 119-125

Abstract: A study of the effects of boron (10 mg/kg as H3BO3) and nitrogen (0-0.15-0.30-0.45-0.60 g/kg) fertilization in combination with soil water capacity (40% and 70%) on lettuce growth and nutritional value was performed. The effects of the simultaneous application of N and B depend on the soil moisture, since lower water in the soil reduced lettuce growth and quality. Linear correlation was found between N fertilization and lettuce yield and quality at the two water soil capacities. Only when N fertilization exceeded 0.45 g/kg the fresh and dry biomass, photosynthesis, sugars and ascorbic acid showed negative influence as compared to the control. The toxic effects of B in lettuce cultivation were alleviated by the presence of high N doses, since a competition between N and B ions was revealed. Overall, the management of irrigation and N fertilization is very important in soils with boron toxicity.

Keywords: ascorbic acid; boron toxicity; nitrogen fertilization; soil water capacity; sugars (search for similar items in EconPapers)
Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlhor:v:40:y:2013:i:3:id:15-2013-hortsci

DOI: 10.17221/15/2013-HORTSCI

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