Laboratory extractions of soil phosphorus do not reflect the fact that liming increases rye phosphorus content and yield in an acidic soil
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.
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2022
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Subjects: | Biomass, Extractant, Liming, Mitscherlich equation, Phosphorus, soil acidity, |
Online Access: | http://hdl.handle.net/10261/303515 |
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dig-cide-es-10261-3035152023-03-17T12:20:14Z Laboratory extractions of soil phosphorus do not reflect the fact that liming increases rye phosphorus content and yield in an acidic soil Olego, Miguel Ángel Cuesta-Lasso, Mateo D. Visconti Reluy, Fernando López, Roberto López-Losada, Alba Garzón-Jimeno, Enrique Junta de Castilla y León Biomass Extractant Liming Mitscherlich equation Phosphorus soil acidity 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. This research was funded by the Castilla y León regional government (project nº LE 04/01). 2023-03-17T12:20:04Z 2023-03-17T12:20:04Z 2022 2023-03-17T12:20:13Z artículo doi: 10.3390/plants11212871 e-issn: 2223-7747 Plants 11(21): 2871 (2022) http://hdl.handle.net/10261/303515 Publisher's version http://dx.doi.org/10.3390/plants11212871 Sí open |
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Biomass Extractant Liming Mitscherlich equation Phosphorus soil acidity Biomass Extractant Liming Mitscherlich equation Phosphorus soil acidity |
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Biomass Extractant Liming Mitscherlich equation Phosphorus soil acidity Biomass Extractant Liming Mitscherlich equation Phosphorus soil acidity Olego, Miguel Ángel Cuesta-Lasso, Mateo D. Visconti Reluy, Fernando López, Roberto López-Losada, Alba Garzón-Jimeno, Enrique Laboratory extractions of soil phosphorus do not reflect the fact that liming increases rye phosphorus content and yield in an acidic soil |
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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. |
author2 |
Junta de Castilla y León |
author_facet |
Junta de Castilla y León Olego, Miguel Ángel Cuesta-Lasso, Mateo D. Visconti Reluy, Fernando López, Roberto López-Losada, Alba Garzón-Jimeno, Enrique |
format |
artículo |
topic_facet |
Biomass Extractant Liming Mitscherlich equation Phosphorus soil acidity |
author |
Olego, Miguel Ángel Cuesta-Lasso, Mateo D. Visconti Reluy, Fernando López, Roberto López-Losada, Alba Garzón-Jimeno, Enrique |
author_sort |
Olego, Miguel Ángel |
title |
Laboratory extractions of soil phosphorus do not reflect the fact that liming increases rye phosphorus content and yield in an acidic soil |
title_short |
Laboratory extractions of soil phosphorus do not reflect the fact that liming increases rye phosphorus content and yield in an acidic soil |
title_full |
Laboratory extractions of soil phosphorus do not reflect the fact that liming increases rye phosphorus content and yield in an acidic soil |
title_fullStr |
Laboratory extractions of soil phosphorus do not reflect the fact that liming increases rye phosphorus content and yield in an acidic soil |
title_full_unstemmed |
Laboratory extractions of soil phosphorus do not reflect the fact that liming increases rye phosphorus content and yield in an acidic soil |
title_sort |
laboratory extractions of soil phosphorus do not reflect the fact that liming increases rye phosphorus content and yield in an acidic soil |
publishDate |
2022 |
url |
http://hdl.handle.net/10261/303515 |
work_keys_str_mv |
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