Soil phosphorus mobilization as affected by long-term organic fertilization in a tropical Regosol
Purpose: Phosphorus mobilization (PM) in tropical Regosols may be harmful to the environment and water quality. It is expected that high contents of soluble phosphorus in sandy soils may promote the P leaching through the transport of the available phosphorus from the soil surface to deeper layers....
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| Format: | Article |
| Language: | English |
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OICC Press
2024-03-01
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| Series: | International Journal of Recycling of Organic Waste in Agriculture |
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| Online Access: | https://oiccpress.com/international-journal-of-recycling-of-organic-waste-in-agriculture/wp-content/uploads/private/IJROWA-Vol13-Issue2-pap132414.pdf?sec=$P$BUDd1b9DAMk19VE1YkxHQ1P5a1Z7a0/&auth=eyJmaWxlIjoiNDgxN2RlOGQzMWFkY2Q0NDlkYWJjMWZmNzRjZDdkNTUxNzFmOGQwZCIsInRpbWUiOjE3MTQ0NjYyNTYsInBvc3QiOjkxNDgsImV4cGlyZXMiOi0xfQ= |
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| author | Kalline De Almeida Alves Carneiro Tancredo Augusto Feitosa De Souza Gislaine Dos Santos Nascimento Vânia Da Silva Fraga Bruno de Oliveira Dias |
| author_facet | Kalline De Almeida Alves Carneiro Tancredo Augusto Feitosa De Souza Gislaine Dos Santos Nascimento Vânia Da Silva Fraga Bruno de Oliveira Dias |
| author_sort | Kalline De Almeida Alves Carneiro |
| collection | DOAJ |
| description | Purpose: Phosphorus mobilization (PM) in tropical Regosols may be harmful to the environment and water quality. It is expected that high contents of soluble phosphorus in sandy soils may promote the P leaching through the transport of the available phosphorus from the soil surface to deeper layers. This study aimed to evaluate the PM in a tropical Regosol by using soil columns (10 cm depth) during steady saturated water flow and PM was correlated with Fe and Al oxides.
Method: Soil samples were collected in four sites characterized as smallholder farming systems that shared the same land uses and soil type with each other. P content was estimated by using water, Melich-1, and resin extraction protocols. We estimated the contents of Fe and Al oxides with high and low crystallinity. The miscible displacement technique was used to simulate P leaching in soil columns, and the leached P was quantified by colorimetry.
Results: Soil P loss showed a significant coefficient of determination (r2 > 0.80) with P content. We found the highest values of Fe oxalate (0.30 mg/g), and Al oxalate (0.53 mg/g) in the long-term organic fertilization, while the highest values of Fe dithionite and Al dithionite were found with the non-fertilization system.
Conclusion: The highest soil pH (8.01), soil P content by different extractors (P mehlich-1, P water, and P resin were 54.45, 14.36, and, 38.70 mg/kg, respectively), and soil P loss (128.83 mg/kg) were observed with the long-term non-fertilization system.
Highlights:
The continuous use of higher rates of farmyard manure influences the soil chemical properties and P loss in a Regosol.
Areas with long-term use of farmyard manure show a high rate of P mobilization.
Areas with the addition of high rates of farmyard manure in a short-term schedule may increase P mobilization.
The use of farmyard manure improves the organic matter accumulation, and available phosphorous, which leads to high vertical P loss. |
| format | Article |
| id | doaj-art-c4a01b4ec32e45b9ba8049b386999965 |
| institution | Kabale University |
| issn | 2195-3228 2251-7715 |
| language | English |
| publishDate | 2024-03-01 |
| publisher | OICC Press |
| record_format | Article |
| series | International Journal of Recycling of Organic Waste in Agriculture |
| spelling | doaj-art-c4a01b4ec32e45b9ba8049b3869999652025-02-02T22:36:34ZengOICC PressInternational Journal of Recycling of Organic Waste in Agriculture2195-32282251-77152024-03-011321810.57647/j.ijrowa.2024.1302.142512Soil phosphorus mobilization as affected by long-term organic fertilization in a tropical RegosolKalline De Almeida Alves Carneirohttps://orcid.org/0000-0000-0000-0000Tancredo Augusto Feitosa De Souza0https://orcid.org/0000-0001-8729-5478Gislaine Dos Santos Nascimento1https://orcid.org/0000-0000-0000-0000Vânia Da Silva Fraga2https://orcid.org/0000-0000-0000-0000Bruno de Oliveira Dias3https://orcid.org/0000-0000-0000-0000Federal University of ParaibaFederal University of ParaibaFederal University of ParaibaFederal University of ParaibaPurpose: Phosphorus mobilization (PM) in tropical Regosols may be harmful to the environment and water quality. It is expected that high contents of soluble phosphorus in sandy soils may promote the P leaching through the transport of the available phosphorus from the soil surface to deeper layers. This study aimed to evaluate the PM in a tropical Regosol by using soil columns (10 cm depth) during steady saturated water flow and PM was correlated with Fe and Al oxides. Method: Soil samples were collected in four sites characterized as smallholder farming systems that shared the same land uses and soil type with each other. P content was estimated by using water, Melich-1, and resin extraction protocols. We estimated the contents of Fe and Al oxides with high and low crystallinity. The miscible displacement technique was used to simulate P leaching in soil columns, and the leached P was quantified by colorimetry. Results: Soil P loss showed a significant coefficient of determination (r2 > 0.80) with P content. We found the highest values of Fe oxalate (0.30 mg/g), and Al oxalate (0.53 mg/g) in the long-term organic fertilization, while the highest values of Fe dithionite and Al dithionite were found with the non-fertilization system. Conclusion: The highest soil pH (8.01), soil P content by different extractors (P mehlich-1, P water, and P resin were 54.45, 14.36, and, 38.70 mg/kg, respectively), and soil P loss (128.83 mg/kg) were observed with the long-term non-fertilization system. Highlights: The continuous use of higher rates of farmyard manure influences the soil chemical properties and P loss in a Regosol. Areas with long-term use of farmyard manure show a high rate of P mobilization. Areas with the addition of high rates of farmyard manure in a short-term schedule may increase P mobilization. The use of farmyard manure improves the organic matter accumulation, and available phosphorous, which leads to high vertical P loss.https://oiccpress.com/international-journal-of-recycling-of-organic-waste-in-agriculture/wp-content/uploads/private/IJROWA-Vol13-Issue2-pap132414.pdf?sec=$P$BUDd1b9DAMk19VE1YkxHQ1P5a1Z7a0/&auth=eyJmaWxlIjoiNDgxN2RlOGQzMWFkY2Q0NDlkYWJjMWZmNzRjZDdkNTUxNzFmOGQwZCIsInRpbWUiOjE3MTQ0NjYyNTYsInBvc3QiOjkxNDgsImV4cGlyZXMiOi0xfQ=farmyard manureorganic fertilizationphosphorus leachingsmallholder farming systemtropical regosol |
| spellingShingle | Kalline De Almeida Alves Carneiro Tancredo Augusto Feitosa De Souza Gislaine Dos Santos Nascimento Vânia Da Silva Fraga Bruno de Oliveira Dias Soil phosphorus mobilization as affected by long-term organic fertilization in a tropical Regosol International Journal of Recycling of Organic Waste in Agriculture farmyard manure organic fertilization phosphorus leaching smallholder farming system tropical regosol |
| title | Soil phosphorus mobilization as affected by long-term organic fertilization in a tropical Regosol |
| title_full | Soil phosphorus mobilization as affected by long-term organic fertilization in a tropical Regosol |
| title_fullStr | Soil phosphorus mobilization as affected by long-term organic fertilization in a tropical Regosol |
| title_full_unstemmed | Soil phosphorus mobilization as affected by long-term organic fertilization in a tropical Regosol |
| title_short | Soil phosphorus mobilization as affected by long-term organic fertilization in a tropical Regosol |
| title_sort | soil phosphorus mobilization as affected by long term organic fertilization in a tropical regosol |
| topic | farmyard manure organic fertilization phosphorus leaching smallholder farming system tropical regosol |
| url | https://oiccpress.com/international-journal-of-recycling-of-organic-waste-in-agriculture/wp-content/uploads/private/IJROWA-Vol13-Issue2-pap132414.pdf?sec=$P$BUDd1b9DAMk19VE1YkxHQ1P5a1Z7a0/&auth=eyJmaWxlIjoiNDgxN2RlOGQzMWFkY2Q0NDlkYWJjMWZmNzRjZDdkNTUxNzFmOGQwZCIsInRpbWUiOjE3MTQ0NjYyNTYsInBvc3QiOjkxNDgsImV4cGlyZXMiOi0xfQ= |
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