Effect of liming on the availability of three rock phosphate sources in two West African Ultisols
The relative effectiveness of two African rock phosphate (Morocco rock, MR and Togo rock, TR) was compared with the more reactive North Carolina rock phosphate (NCR) and with Triple superphosphate (TSP) in greenhouse using two strongly acidic Ultisols from southern Nigeria with and without applicati...
| Autores principales: | , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
1979
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/175383 |
| _version_ | 1855529572557127680 |
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| author | Juo, A.S.R. Kang, B.T. |
| author_browse | Juo, A.S.R. Kang, B.T. |
| author_facet | Juo, A.S.R. Kang, B.T. |
| author_sort | Juo, A.S.R. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The relative effectiveness of two African rock phosphate (Morocco rock, MR and Togo rock, TR) was compared with the more reactive North Carolina rock phosphate (NCR) and with Triple superphosphate (TSP) in greenhouse using two strongly acidic Ultisols from southern Nigeria with and without application of lime. Without liming, the relative effectiveness of the four P sources is in the order of NCR>TSP>MR>TR; while with liming, the sequence becomes: TSP≥NCR>MR>TR. Liming soils to pH near 5.5 depressed P uptake by plant from the rock P sources but increased P uptake from TSP. Morocco and Togo rocks are poor sources of P for direct application under both limed and unlimed conditions. |
| format | Journal Article |
| id | CGSpace175383 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1979 |
| publishDateRange | 1979 |
| publishDateSort | 1979 |
| record_format | dspace |
| spelling | CGSpace1753832025-11-11T10:33:33Z Effect of liming on the availability of three rock phosphate sources in two West African Ultisols Juo, A.S.R. Kang, B.T. rock phosphate ultisols liming availability The relative effectiveness of two African rock phosphate (Morocco rock, MR and Togo rock, TR) was compared with the more reactive North Carolina rock phosphate (NCR) and with Triple superphosphate (TSP) in greenhouse using two strongly acidic Ultisols from southern Nigeria with and without application of lime. Without liming, the relative effectiveness of the four P sources is in the order of NCR>TSP>MR>TR; while with liming, the sequence becomes: TSP≥NCR>MR>TR. Liming soils to pH near 5.5 depressed P uptake by plant from the rock P sources but increased P uptake from TSP. Morocco and Togo rocks are poor sources of P for direct application under both limed and unlimed conditions. 1979 2025-06-30T10:42:44Z 2025-06-30T10:42:44Z Journal Article https://hdl.handle.net/10568/175383 en Limited Access application/pdf Juo, A.S.R. & Kang, B.T. (1979). Effect of liming on the availability of three rock phosphate sources in two West African ultisols. Communications in Soil Science and Plant Analysis, 10(7), 993-1003. |
| spellingShingle | rock phosphate ultisols liming availability Juo, A.S.R. Kang, B.T. Effect of liming on the availability of three rock phosphate sources in two West African Ultisols |
| title | Effect of liming on the availability of three rock phosphate sources in two West African Ultisols |
| title_full | Effect of liming on the availability of three rock phosphate sources in two West African Ultisols |
| title_fullStr | Effect of liming on the availability of three rock phosphate sources in two West African Ultisols |
| title_full_unstemmed | Effect of liming on the availability of three rock phosphate sources in two West African Ultisols |
| title_short | Effect of liming on the availability of three rock phosphate sources in two West African Ultisols |
| title_sort | effect of liming on the availability of three rock phosphate sources in two west african ultisols |
| topic | rock phosphate ultisols liming availability |
| url | https://hdl.handle.net/10568/175383 |
| work_keys_str_mv | AT juoasr effectoflimingontheavailabilityofthreerockphosphatesourcesintwowestafricanultisols AT kangbt effectoflimingontheavailabilityofthreerockphosphatesourcesintwowestafricanultisols |