Isbn: 9786209305900 - distribution and dynamics of boron in tunisia: contribution to the study of boron distribution and dynamics in some typical soils of tunisia (11 resultados)

PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000.

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Condición: New.

Taschenbuch. Condición: Neu. Distribution and dynamics of boron in Tunisia | Contribution to the study of boron distribution and dynamics in some typical soils of Tunisia | Ahlem Tlili (u. a.) | Taschenbuch | Englisch | 2025 | Our Knowledge Publishing | EAN 9786209305900 | Verantwortliche Person für die EU: SIA OmniScriptum Publishing, Brivibas Gatve 197, 1039 RIGA, LETTLAND, customerservice[at]vdm-vsg[dot]de | Anbieter: preigu.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 140 pp. Englisch.

Taschenbuch. Condición: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - 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. …

Paperback. Condición: new. Paperback. 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. This item is printed on demand. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability.…

Taschenbuch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -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.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 140 pp. Englisch.…

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