Cargando…
On the tropical soils; The influence of organic matter (OM) on phosphate bioavailability
Application of organic manure (OM) and crop residues in agricultural soils can potentially influence positively or negatively the availability of soil phosphorus (P) through soil mineralization, sorption, or desorption of soil-bound P. Traditionally, the addition of OM can reduce the capacity of the...
Autores principales: | , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9280210/ https://www.ncbi.nlm.nih.gov/pubmed/35844405 http://dx.doi.org/10.1016/j.sjbs.2022.02.056 |
_version_ | 1784746587853946880 |
---|---|
author | Mabagala, Frank Stephano Mng'ong'o, Marco E. |
author_facet | Mabagala, Frank Stephano Mng'ong'o, Marco E. |
author_sort | Mabagala, Frank Stephano |
collection | PubMed |
description | Application of organic manure (OM) and crop residues in agricultural soils can potentially influence positively or negatively the availability of soil phosphorus (P) through soil mineralization, sorption, or desorption of soil-bound P. Traditionally, the addition of OM can reduce the capacity of the soil colloids to adsorb P, thus increasing the release of P in soil solution, but also added OM can increase the adsorption site and increase the fixation or sorption of P to soil colloids, thus reducing the availability of P in soil solution and loss to the environment. The highly weathered tropical soils (HWTS) are susceptible to P insufficiency because HWTS have high P adsorption and fixation; this is mainly due to high concentration of P adsorbent. The main P adsorbents in HWTS include Al, Fe, Ca, and clay minerals, which are principally the same binding or adsorbent for OM compounds, but in excess, are toxic (Al and Fe) to crops. Thus, the presence of OM in HWTS can compromise the adsorption and availability of P in agricultural soils following phosphatic fertilizer applications. In this study, the influence of OM on P adsorption and availability was characterized to have a clear understanding of how OM influences P availability in agricultural soils, especially in highly weathered tropical soil. It is clearly outlined that the application of OM and crop residues can positively or negatively influence the availability of P in agricultural soils for plant uptake and dictate the P that is available for loss to the environment. Thus, the addition of organic matter as a strategy to increase P bioavailability for plant uptake must be treated with care because their contribution is not strait forward to be positive in many agricultural soils. |
format | Online Article Text |
id | pubmed-9280210 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-92802102022-07-15 On the tropical soils; The influence of organic matter (OM) on phosphate bioavailability Mabagala, Frank Stephano Mng'ong'o, Marco E. Saudi J Biol Sci Review Application of organic manure (OM) and crop residues in agricultural soils can potentially influence positively or negatively the availability of soil phosphorus (P) through soil mineralization, sorption, or desorption of soil-bound P. Traditionally, the addition of OM can reduce the capacity of the soil colloids to adsorb P, thus increasing the release of P in soil solution, but also added OM can increase the adsorption site and increase the fixation or sorption of P to soil colloids, thus reducing the availability of P in soil solution and loss to the environment. The highly weathered tropical soils (HWTS) are susceptible to P insufficiency because HWTS have high P adsorption and fixation; this is mainly due to high concentration of P adsorbent. The main P adsorbents in HWTS include Al, Fe, Ca, and clay minerals, which are principally the same binding or adsorbent for OM compounds, but in excess, are toxic (Al and Fe) to crops. Thus, the presence of OM in HWTS can compromise the adsorption and availability of P in agricultural soils following phosphatic fertilizer applications. In this study, the influence of OM on P adsorption and availability was characterized to have a clear understanding of how OM influences P availability in agricultural soils, especially in highly weathered tropical soil. It is clearly outlined that the application of OM and crop residues can positively or negatively influence the availability of P in agricultural soils for plant uptake and dictate the P that is available for loss to the environment. Thus, the addition of organic matter as a strategy to increase P bioavailability for plant uptake must be treated with care because their contribution is not strait forward to be positive in many agricultural soils. Elsevier 2022-05 2022-03-07 /pmc/articles/PMC9280210/ /pubmed/35844405 http://dx.doi.org/10.1016/j.sjbs.2022.02.056 Text en © 2022 The Author(s) https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Review Mabagala, Frank Stephano Mng'ong'o, Marco E. On the tropical soils; The influence of organic matter (OM) on phosphate bioavailability |
title | On the tropical soils; The influence of organic matter (OM) on phosphate bioavailability |
title_full | On the tropical soils; The influence of organic matter (OM) on phosphate bioavailability |
title_fullStr | On the tropical soils; The influence of organic matter (OM) on phosphate bioavailability |
title_full_unstemmed | On the tropical soils; The influence of organic matter (OM) on phosphate bioavailability |
title_short | On the tropical soils; The influence of organic matter (OM) on phosphate bioavailability |
title_sort | on the tropical soils; the influence of organic matter (om) on phosphate bioavailability |
topic | Review |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9280210/ https://www.ncbi.nlm.nih.gov/pubmed/35844405 http://dx.doi.org/10.1016/j.sjbs.2022.02.056 |
work_keys_str_mv | AT mabagalafrankstephano onthetropicalsoilstheinfluenceoforganicmatteromonphosphatebioavailability AT mngongomarcoe onthetropicalsoilstheinfluenceoforganicmatteromonphosphatebioavailability |