Changes in carbon and phosphorus storages and humic substances in a Ferralsol, after tillage and animal manures applications

Oliveira, José Francirlei de; Oliveira, Jean Carlo Santos de; Ruiz, Danilo Bernardino; Barbosa, Graziela Moraes de Césare; Filho, João Tavares

doi:10.1016/j.still.2022.105358

Cited by 4 publications

(1 citation statement)

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“…During the composting process, which involves the transformation of organic matter, there are also significant transformations in the P content and proportions between different P forms, which can have a significant impact on the suitability of such material as a source of P in soil. Detailed studies on phosphorus transformations in composts and treated soils are still scarce [8,19,[31][32][33]. Further research in this area is of great importance in relation to the amounts and relative distribution of P forms and P availability, as well as the environmental risk of possible P leaching from compost [3,32,34,35].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Municipal Solid Waste Compost on the Tranformations of Phosphorus Forms in Soil

et al. 2023

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Searching for a renewable phosphorus (P) source for agricultural soils has become a challenge of particular importance on a global scale. Depletion of the world’s phosphate resources as well as the risk of environmental problems caused by excessive P mobility have placed this topic among the most important environmental issues. The aim of this study was to analyse the transformation of phosphorus forms in municipal solid waste compost (MSWC) at different maturity stages, to assess the effects of their application on soil phosphorus status and to evaluate the suitability of MSWC for agricultural soils as a potential phosphorus source. The application of MSWC to the soil had a positive effect on the content of available P. The content of potentially mobile P forms increased significantly in the soil, primarily after the introduction of immature MSWC and confirmed by the significant correlations with the applied P indicators. However, the results indicate that the MSWC does not pose a serious environmental risk and could become a potential source of P in the soil, although the material used for this purpose should be mature. This study also indicated that the assessment of using compost as a P source should not be based on P total content alone, but should include the content of different P forms and specific P-related indicators, to reflect both the P availability and the potential environmental risks.

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