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Transformation in soils following co-application of charcoal and wood ash

Phosphorus (P) is a vital soil macronutrient required by plants for optimum growth and development. However, its availability is limited because of fixation. The phosphorus fixation reaction is pH dependent. In acid soils, the predominance of aluminium (Al) and iron (Fe) oxides in both crystalline a...

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Main Authors: Johan, Prisca Divra, Ahmed, Osumanu Haruna, Omar, Latifah, Hasbullah, Nur Aainaa
Format: Article
Published: MDPI 2021
Online Access:http://psasir.upm.edu.my/id/eprint/93416/
https://www.mdpi.com/2073-4395/11/10/2010
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spelling my.upm.eprints.934162023-01-12T06:29:33Z http://psasir.upm.edu.my/id/eprint/93416/ Transformation in soils following co-application of charcoal and wood ash Johan, Prisca Divra Ahmed, Osumanu Haruna Omar, Latifah Hasbullah, Nur Aainaa Phosphorus (P) is a vital soil macronutrient required by plants for optimum growth and development. However, its availability is limited because of fixation. The phosphorus fixation reaction is pH dependent. In acid soils, the predominance of aluminium (Al) and iron (Fe) oxides in both crystalline and amorphous forms reduces the solubility of soil inorganic P through fixation on positively charged surfaces and formation of insoluble Al and Fe precipitates. In alkaline soils, P readily reacts with calcium (Ca) to form sparingly soluble calcium phosphates. As a result, a large proportion of applied P may become chemically bound, whereas only a small fraction of soil P remains in the soil solution and available for plant uptake. To date, there is little information available on the use of charcoal with a highly negative charge and wood ash with high alkalinity to minimise P fixation in acid soils. Thus, this study examined the potential of the combined use of charcoal and wood ash to unlock P fixation in acid soils. Numerous studies have been conducted to identify effective approaches to improve P availability through the use of different types of soil amendments, regardless of whether P is organically or inorganically present. For example, to mitigate P fixation in acid soils, amendments such as compost and zeolite are used to reduce P sorption sites. These amendments have also been used to increase P uptake and crop productivity in P deficient acid soils by reducing soil acidity and the toxicity of Al and Fe. It is believed that long-term application of charcoal and sago bark ash can positively change the physical and chemical properties of soils. These improvements do not only reduce P fixation in acid soils, but they also promote an effective utilisation of nutrients through timely release of nutrients for maximum crop production. MDPI 2021-10-04 Article PeerReviewed Johan, Prisca Divra and Ahmed, Osumanu Haruna and Omar, Latifah and Hasbullah, Nur Aainaa (2021) Transformation in soils following co-application of charcoal and wood ash. Agronomy-Basel, 11 (10). art. no. 2010. pp. 1-25. ISSN 2073-4395 https://www.mdpi.com/2073-4395/11/10/2010 10.3390/agronomy11102010
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
description Phosphorus (P) is a vital soil macronutrient required by plants for optimum growth and development. However, its availability is limited because of fixation. The phosphorus fixation reaction is pH dependent. In acid soils, the predominance of aluminium (Al) and iron (Fe) oxides in both crystalline and amorphous forms reduces the solubility of soil inorganic P through fixation on positively charged surfaces and formation of insoluble Al and Fe precipitates. In alkaline soils, P readily reacts with calcium (Ca) to form sparingly soluble calcium phosphates. As a result, a large proportion of applied P may become chemically bound, whereas only a small fraction of soil P remains in the soil solution and available for plant uptake. To date, there is little information available on the use of charcoal with a highly negative charge and wood ash with high alkalinity to minimise P fixation in acid soils. Thus, this study examined the potential of the combined use of charcoal and wood ash to unlock P fixation in acid soils. Numerous studies have been conducted to identify effective approaches to improve P availability through the use of different types of soil amendments, regardless of whether P is organically or inorganically present. For example, to mitigate P fixation in acid soils, amendments such as compost and zeolite are used to reduce P sorption sites. These amendments have also been used to increase P uptake and crop productivity in P deficient acid soils by reducing soil acidity and the toxicity of Al and Fe. It is believed that long-term application of charcoal and sago bark ash can positively change the physical and chemical properties of soils. These improvements do not only reduce P fixation in acid soils, but they also promote an effective utilisation of nutrients through timely release of nutrients for maximum crop production.
format Article
author Johan, Prisca Divra
Ahmed, Osumanu Haruna
Omar, Latifah
Hasbullah, Nur Aainaa
spellingShingle Johan, Prisca Divra
Ahmed, Osumanu Haruna
Omar, Latifah
Hasbullah, Nur Aainaa
Transformation in soils following co-application of charcoal and wood ash
author_facet Johan, Prisca Divra
Ahmed, Osumanu Haruna
Omar, Latifah
Hasbullah, Nur Aainaa
author_sort Johan, Prisca Divra
title Transformation in soils following co-application of charcoal and wood ash
title_short Transformation in soils following co-application of charcoal and wood ash
title_full Transformation in soils following co-application of charcoal and wood ash
title_fullStr Transformation in soils following co-application of charcoal and wood ash
title_full_unstemmed Transformation in soils following co-application of charcoal and wood ash
title_sort transformation in soils following co-application of charcoal and wood ash
publisher MDPI
publishDate 2021
url http://psasir.upm.edu.my/id/eprint/93416/
https://www.mdpi.com/2073-4395/11/10/2010
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score 13.211869

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