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Título
The Importance of Liming with an Appropriate Liming Material: Long-Term Experience with a Typic Palexerult
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Plants
Número de la revista
12
Cita Bibliográfica
Olego, M. Á., Quiroga, M. J., López, R., and Garzón-Jimeno, E. (2021). The Importance of Liming with an Appropriate Liming Material: Long-Term Experience with a Typic Palexerult. Plants, 10(12), 2605-. https://doi.org/10.3390/plants10122605
Editorial
Basel MDPI AG
Fecha
2021
Resumen
[EN] Aluminium phytotoxicity is considered the main limiting factor for crop productivity in
agricultural acid soils. Liming is a common practice used to improve acidic soil properties, but
an appropriate liming material is essential for both agricultural productivity and environmental
sustainability. A long-term field experiment with two liming amendments (dolomitic limestone and
limestone) was developed during 10 years to determine the changes in soil acidity and assess the
effects on crop (rye) yields. Although the adverse effects of the soil acidity conditions were alleviated
with both amendments tested, dolomitic limestone was the most effective in the short- and long-term
period. In terms of the saturation of exchange complex, dolomitic limestone had a better efficiency,
likely based on its rate of dissolution. No significant changes in soil organic matter and exchangeable
potassium levels between the treatments tested were found. Both liming materials significantly
increased the rye total biomass, but interestingly, significant correlations were showed between
tissue levels of magnesium and biomass production, but not between the latter and calcium. The
increases in rye biomass production compared with control soils at the end of the research were the
following: dolomitic limestone, 47%, and limestone, 32%. A link between an increase in magnesium
bioavailability and biomass production was found, as well as between magnesium rye content and
total, spike and stem biomass. Hence, it could conceivably be hypothesized that since magnesium is
crucial for the transport of assimilates from source leaves to sink organs, alleviating its deficiency
leads to avoiding the reducing growth rate of sink organs. Although further investigations are needed
to gain a better understanding of liming on the biological, chemical and physical soil properties in
the long term, our research provides support for the conceptual premise that an appropriate selection
of liming material is crucial for the productivity of acid soils.
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