Ahlem Tlili, Imene Dridi, Naceur Jedidi

Distribution and dynamics of boron in Tunisia

Contribution to the study of boron distribution and dynamics in some typical soils of Tunisia

• Broschiertes Buch

Produktbeschreibung

Boron is a soil microelement with a narrow margin between deficiency and toxicity. The results show a decrease in available boron with depth for calcareous soils (Luvisol-1, Vertisol, Fluvisol and Cambisol), while they increase in non-calcareous soils (Luvisol-2 and Luvisol-3). Calcareous soils contain more total boron than non-calcareous ones. Chemical fractionation shows that readily soluble boron represents less than 1.7% of the total, while the residual fraction exceeds 97.5%. Granulometric fractionation reveals that the majority of available boron is associated with the silty fraction (51%), followed by the sandy (34%) and clayey (15%) fractions. In terms of humic substances, humic acids account for 70.69% of total boron, compared with 27.88% for fulvic acids and 1.43% for humin. Adsorption and desorption follow the Freundlich isotherm, with high boron retention during the desorption process. In hydroponics, the optimum boron dose for lettuce (Lactuca sativa L.) is 0.5-5 mg/kg to avoid toxicity. However, for soil-grown lettuce, this concentration may exceed 5 mg/kg.

Produktdetails

• Verlag: Our Knowledge Publishing
• Seitenzahl: 140
• Erscheinungstermin: 26. Dezember 2025
• Englisch
• Abmessung: 220mm x 150mm x 9mm
• Gewicht: 227g
• ISBN-13: 9786209305900
• ISBN-10: 6209305903
• Artikelnr.: 76250365

Autorenporträt

Dr. Ahlem TLILI, Bodenwissenschaft,Faculté des Sciences de Tunis, Université Tunis El Manar, Tunisie.Dr. Imene DRIDI, Bodenwissenschaft, Maitre de Conférences an der Faculté des Sciences de Tunis, Université Tunis El Manar, Tunisie.Prof. Dr. Ing. Naceur JEDIDI, Bodenwissenschaft und Umwelt am CERTE, Borj Cédria, Tunesien.