Nitrogen mineralization pattern of agroforestry tree leaves under tropical highland conditions
Leaves of nine agroforestry tree species (Grevillea robusta, Erythrina abyssinica, Gliricidia sepium, Albizia schimperiana. Acacia nilotica. Acacia polyacantha, Leu-caena leucocephala, Leucaena pallida and Entada abys-sinica) were compared in a glasshouse incubation experiment under natural temperat...
| Autores principales: | , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
1997
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/24817 |
| _version_ | 1855536361619062784 |
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| author | Anthofer, J. Hanson, Jean Jutzi, S.C. |
| author_browse | Anthofer, J. Hanson, Jean Jutzi, S.C. |
| author_facet | Anthofer, J. Hanson, Jean Jutzi, S.C. |
| author_sort | Anthofer, J. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Leaves of nine agroforestry tree species (Grevillea robusta, Erythrina abyssinica, Gliricidia sepium, Albizia schimperiana. Acacia nilotica. Acacia polyacantha, Leu-caena leucocephala, Leucaena pallida and Entada abys-sinica) were compared in a glasshouse incubation experiment under natural temperature conditions to relate the observed nitrogen mineralization pattern to quality factors of the mulch material such as N, lignin, phenolic and tannin content and C/N ratio, lignin/N ratio, phenolic/N ratio and (lignin -I- phenolics)/N ratio. Separation of the plant material into leaflets and petioles/rachis or into leaves and petioles with subsequent chemical analyses revealed large differences in the quality of the material not only between species but also amongst plant parts within the same species. Erythrina abyssinica, G. sepium, L. leucocephala and L. pallida had a rapid nitrogen release especially during the early sampling dates and were superior compared with mulch treatments of G. robusta, A. polyacantha, and Entada abyssinica. Immobilization processes started around 5 weeks after incubation and continued up to the end of the experiment, 9 weeks after incubation. N and lignin content, C/N ratio, lignin/N ratio, phenolics/N ratio and (phenolics + lignin)/N ratio were all significantly correlated with mineralized nitrogen after 3 weeks but their influence in driving the mineralization pattern decreased with incubation time. |
| format | Journal Article |
| id | CGSpace24817 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1997 |
| publishDateRange | 1997 |
| publishDateSort | 1997 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace248172024-05-05T18:39:21Z Nitrogen mineralization pattern of agroforestry tree leaves under tropical highland conditions Anthofer, J. Hanson, Jean Jutzi, S.C. crops tropics highlands agroforestry browse plants leaves nitrogen Leaves of nine agroforestry tree species (Grevillea robusta, Erythrina abyssinica, Gliricidia sepium, Albizia schimperiana. Acacia nilotica. Acacia polyacantha, Leu-caena leucocephala, Leucaena pallida and Entada abys-sinica) were compared in a glasshouse incubation experiment under natural temperature conditions to relate the observed nitrogen mineralization pattern to quality factors of the mulch material such as N, lignin, phenolic and tannin content and C/N ratio, lignin/N ratio, phenolic/N ratio and (lignin -I- phenolics)/N ratio. Separation of the plant material into leaflets and petioles/rachis or into leaves and petioles with subsequent chemical analyses revealed large differences in the quality of the material not only between species but also amongst plant parts within the same species. Erythrina abyssinica, G. sepium, L. leucocephala and L. pallida had a rapid nitrogen release especially during the early sampling dates and were superior compared with mulch treatments of G. robusta, A. polyacantha, and Entada abyssinica. Immobilization processes started around 5 weeks after incubation and continued up to the end of the experiment, 9 weeks after incubation. N and lignin content, C/N ratio, lignin/N ratio, phenolics/N ratio and (phenolics + lignin)/N ratio were all significantly correlated with mineralized nitrogen after 3 weeks but their influence in driving the mineralization pattern decreased with incubation time. 1997-11 2012-11-21T15:50:01Z 2012-11-21T15:50:01Z Journal Article https://hdl.handle.net/10568/24817 en Limited Access Wiley Anthofer, J., Hanson, J., & Jutzi, S. C. (1997). Nitrogen Mineralization Pattern of Agroforestry Tree Leaves under Tropical Highland Conditions. Journal of Agronomy and Crop Science, 179(3), 139–147. Portico. https://doi.org/10.1111/j.1439-037x.1997.tb00510.x |
| spellingShingle | crops tropics highlands agroforestry browse plants leaves nitrogen Anthofer, J. Hanson, Jean Jutzi, S.C. Nitrogen mineralization pattern of agroforestry tree leaves under tropical highland conditions |
| title | Nitrogen mineralization pattern of agroforestry tree leaves under tropical highland conditions |
| title_full | Nitrogen mineralization pattern of agroforestry tree leaves under tropical highland conditions |
| title_fullStr | Nitrogen mineralization pattern of agroforestry tree leaves under tropical highland conditions |
| title_full_unstemmed | Nitrogen mineralization pattern of agroforestry tree leaves under tropical highland conditions |
| title_short | Nitrogen mineralization pattern of agroforestry tree leaves under tropical highland conditions |
| title_sort | nitrogen mineralization pattern of agroforestry tree leaves under tropical highland conditions |
| topic | crops tropics highlands agroforestry browse plants leaves nitrogen |
| url | https://hdl.handle.net/10568/24817 |
| work_keys_str_mv | AT anthoferj nitrogenmineralizationpatternofagroforestrytreeleavesundertropicalhighlandconditions AT hansonjean nitrogenmineralizationpatternofagroforestrytreeleavesundertropicalhighlandconditions AT jutzisc nitrogenmineralizationpatternofagroforestrytreeleavesundertropicalhighlandconditions |