Ramial wood amendments (Piliostigma reticulatum) mitigate degradation of tropical soils but do not replenish nutrient exports
Restoring degraded soils to support food production is a major challenge for West African smallholders who have developed local innovations to counter further degradation. The objective of this study was to evaluate a local farmer's technique that uses ramial wood (RW) as soil amendment (Piliostigma...
| Autores principales: | , , , , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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John Wiley & Sons Ltd
2018
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/3439 https://onlinelibrary.wiley.com/doi/abs/10.1002/ldr.3033 https://doi.org/10.1002/ldr.3033 |
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| author | Felix, Georges F. Clermont-Dauphin, Cathy Hien, Edmond Groot, Jeroen C.J. Penche, Aurélien Barthés, Bernard G. Manlay, Raphaël J. Tittonell, Pablo Adrian Cournac, Laurent |
| author_browse | Barthés, Bernard G. Clermont-Dauphin, Cathy Cournac, Laurent Felix, Georges F. Groot, Jeroen C.J. Hien, Edmond Manlay, Raphaël J. Penche, Aurélien Tittonell, Pablo Adrian |
| author_facet | Felix, Georges F. Clermont-Dauphin, Cathy Hien, Edmond Groot, Jeroen C.J. Penche, Aurélien Barthés, Bernard G. Manlay, Raphaël J. Tittonell, Pablo Adrian Cournac, Laurent |
| author_sort | Felix, Georges F. |
| collection | INTA Digital |
| description | Restoring degraded soils to support food production is a major challenge for West African smallholders who have developed local innovations to counter further degradation. The objective of this study was to evaluate a local farmer's technique that uses ramial wood (RW) as soil amendment (Piliostigma reticulatum shrub). Three treatments were applied in an experimental plot in Burkina Faso: control (no amendment), low RW (3 Mg fresh mass·ha−1·yr−1), and high RW (12 Mg fresh mass·ha−1·yr−1). RW was chipped to <5‐cm pieces and either buried or mulched. Topsoil carbon (C), nitrogen (N), and phosphorus (P) in control and low‐RW treatments declined after 7 years of continuous sorghum cultivation. Use of high‐RW amendment stabilized soil C content while N and P declined, thus not replenishing nutrient exports. Net contribution to soil C in the layer measuring 0–15 cm was 15% of the applied C in the high‐RW
amendments. Although biomass and grain yields were higher in high‐RW treatments, crop productivity declined throughout the experiment for all treatments. Termite casts on RW treatments evidenced the potential role of wood‐foraging termites in diluting
the impact of RW on soil fertility build‐up and soil water content. We conclude that mitigating soil degradation under semiarid conditions in Burkina Faso would require large amounts of woody amendments, particularly if the level of termite activity is high.
Additional nutrient sources would be needed to compensate for removal in exported products so that biomass and grain production can be stabilized or increased. |
| format | Artículo |
| id | INTA3439 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | John Wiley & Sons Ltd |
| publisherStr | John Wiley & Sons Ltd |
| record_format | dspace |
| spelling | INTA34392018-09-21T14:18:58Z Ramial wood amendments (Piliostigma reticulatum) mitigate degradation of tropical soils but do not replenish nutrient exports Felix, Georges F. Clermont-Dauphin, Cathy Hien, Edmond Groot, Jeroen C.J. Penche, Aurélien Barthés, Bernard G. Manlay, Raphaël J. Tittonell, Pablo Adrian Cournac, Laurent Degradación del Suelo Soil Degradation Termitidae Arbustos Shrubs Piliostigma Reticulatum Restoring degraded soils to support food production is a major challenge for West African smallholders who have developed local innovations to counter further degradation. The objective of this study was to evaluate a local farmer's technique that uses ramial wood (RW) as soil amendment (Piliostigma reticulatum shrub). Three treatments were applied in an experimental plot in Burkina Faso: control (no amendment), low RW (3 Mg fresh mass·ha−1·yr−1), and high RW (12 Mg fresh mass·ha−1·yr−1). RW was chipped to <5‐cm pieces and either buried or mulched. Topsoil carbon (C), nitrogen (N), and phosphorus (P) in control and low‐RW treatments declined after 7 years of continuous sorghum cultivation. Use of high‐RW amendment stabilized soil C content while N and P declined, thus not replenishing nutrient exports. Net contribution to soil C in the layer measuring 0–15 cm was 15% of the applied C in the high‐RW amendments. Although biomass and grain yields were higher in high‐RW treatments, crop productivity declined throughout the experiment for all treatments. Termite casts on RW treatments evidenced the potential role of wood‐foraging termites in diluting the impact of RW on soil fertility build‐up and soil water content. We conclude that mitigating soil degradation under semiarid conditions in Burkina Faso would require large amounts of woody amendments, particularly if the level of termite activity is high. Additional nutrient sources would be needed to compensate for removal in exported products so that biomass and grain production can be stabilized or increased. Estación Experimental Agropecuaria Bariloche Fil: Félix, Georges F. Wageningen University. Farming Systems Ecology; Holanda Fil: Clermont-Dauphin, Cathy. Montpellier SupAgro- Centre de Coopération Internationale en Recherche Agronomique pour le Développement-Institut National de la Recherche Agronomique. Eco&Sols; Francia Fil: Hien, Edmond. Laboratoire Mixte International. Intensification Ecologique des Sols Cultivés en Afrique de l'Ouest; Burkina Faso Fil: Groot, Jeroen C.J. Wageningen University. Farming Systems Ecology; Holanda Fil: Penche, Aurelien. Laboratoire Mixte International. Intensification Ecologique des Sols Cultivés en Afrique de l'Ouest; Burkina Faso Fil: Barthès, Bernard G. Universidad Montpellier; Francia Fil: Manlay, Raphaël J. AgroParisTech; Francia Fil: Tittonell, Pablo Adrian. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina Fil: Cournac, Laurent. Montpellier SupAgro- Centre de Coopération Internationale en Recherche Agronomique pour le Développement-Institut National de la Recherche Agronomique. Eco&Sols; Francia 2018-09-21T13:20:23Z 2018-09-21T13:20:23Z 2018-08 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/3439 https://onlinelibrary.wiley.com/doi/abs/10.1002/ldr.3033 1099-145X https://doi.org/10.1002/ldr.3033 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf John Wiley & Sons Ltd Land degradation & development 29 : 2694–2706. (2018) |
| spellingShingle | Degradación del Suelo Soil Degradation Termitidae Arbustos Shrubs Piliostigma Reticulatum Felix, Georges F. Clermont-Dauphin, Cathy Hien, Edmond Groot, Jeroen C.J. Penche, Aurélien Barthés, Bernard G. Manlay, Raphaël J. Tittonell, Pablo Adrian Cournac, Laurent Ramial wood amendments (Piliostigma reticulatum) mitigate degradation of tropical soils but do not replenish nutrient exports |
| title | Ramial wood amendments (Piliostigma reticulatum) mitigate degradation of tropical soils but do not replenish nutrient exports |
| title_full | Ramial wood amendments (Piliostigma reticulatum) mitigate degradation of tropical soils but do not replenish nutrient exports |
| title_fullStr | Ramial wood amendments (Piliostigma reticulatum) mitigate degradation of tropical soils but do not replenish nutrient exports |
| title_full_unstemmed | Ramial wood amendments (Piliostigma reticulatum) mitigate degradation of tropical soils but do not replenish nutrient exports |
| title_short | Ramial wood amendments (Piliostigma reticulatum) mitigate degradation of tropical soils but do not replenish nutrient exports |
| title_sort | ramial wood amendments piliostigma reticulatum mitigate degradation of tropical soils but do not replenish nutrient exports |
| topic | Degradación del Suelo Soil Degradation Termitidae Arbustos Shrubs Piliostigma Reticulatum |
| url | http://hdl.handle.net/20.500.12123/3439 https://onlinelibrary.wiley.com/doi/abs/10.1002/ldr.3033 https://doi.org/10.1002/ldr.3033 |
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