Compartir
Título
Laboratory Extractions of Soil Phosphorus Do Not Reflect the Fact That Liming Increases Rye Phosphorus Content and Yield in an Acidic Soil
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Plants
Número de la revista
21
Cita Bibliográfica
Olego, M. Á., Cuesta-Lasso, M. D., Visconti Reluy, F., López, R., López-Losada, A., & Garzón-Jimeno, E. (2022). Laboratory Extractions of Soil Phosphorus Do Not Reflect the Fact That Liming Increases Rye Phosphorus Content and Yield in an Acidic Soil. Plants, 11(21). https://doi.org/10.3390/PLANTS11212871
Editorial
Basel MDPI AG
Fecha
2022
Resumen
[EN] In addition to aluminum and other heavy metal toxicities, acidic soils also feature nutrient
deficits that are not easily overcome by merely adding the required amounts of mineral fertilizers. One
of the most critically scarce nutrients in acidic soils is phosphorus, which reacts with aluminum and
iron to form phosphates that keep soil phosphorus availability significantly low. Liming ameliorates
acidic soils by increasing pH and decreasing aluminum contents; however, it also increases the
amount of calcium, which can react with phosphorus to form low-solubility phosphates. In the
present work, three liming materials, namely, dolomitic limestone, limestone and sugar foam, were
applied on a Typic Palexerult cropped with rye. The effects of these materials on soil properties,
including soil available phosphorus extracted with the Olsen and Bray-1 methods, rye phosphorus
content in stems and stem and spike harvested biomasses were monitored for nine years. According to
the Olsen extraction, the amount of soil available phosphorus generally decreased following liming,
with limestone presenting the lowest values; however, the amount of soil available phosphorus
increased according to the Bray-1 extraction, though only to a significant extent with the sugar foam
from the third year onward. Regardless, the phosphorus content in rye and the relative biomass
yield in both stems and spikes generally increased as a consequence of liming. Since crop uptake
and growth are the ultimate tests of soil nutrient availability, the inconsistent stem phosphorus
content results following the Olsen and Bray-1 extraction methods suggest a lowered efficiency of
both extractants regarding crops in soils rich in both aluminum and calcium ions. This decrease can
lead to important interpretation errors in the specific conditions of these limed acidic soils, so other
methods should be applied and/or researched to better mimic the crop roots’ phosphorus extraction
ability. Consequently, the effects of the liming of acidic soils on phosphorus availability and crop
performance in the short and long term will be better understood.
Materia
Palabras clave
Peer review
SI
URI
DOI
Aparece en las colecciones
- Artículos [5134]
Ficheros en el ítem
Tamaño:
6.686
xmlui.dri2xhtml.METS-1.0.size-megabytes
Formato:
Adobe PDF
Descripción:
Artículo principal