Altitude and management affect soil fertility, leaf nutrient status and Xanthomonas wilt prevalence in enset gardens
Enset (Ensete ventricosum) is a productive, drought-tolerant and multipurpose food security crop grown in the densely populated Ethiopian highlands. It is a so-called orphan crop, and its production suffers from a lack of information on proper soil fertility management and its interaction with bacte...
| Autores principales: | , , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Copernicus GmbH
2021
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| Acceso en línea: | https://hdl.handle.net/10568/110901 |
| _version_ | 1855532566309765120 |
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| author | Shara, Sabura Swennen, Rony L. Deckers, Jozef Weldesenbet, Fantahun Vercammen, Laura Eshetu, Fassil Woldeyes, Feleke Blomme, Guy Merckx, Roel Vancampenhout, Karen |
| author_browse | Blomme, Guy Deckers, Jozef Eshetu, Fassil Merckx, Roel Shara, Sabura Swennen, Rony L. Vancampenhout, Karen Vercammen, Laura Weldesenbet, Fantahun Woldeyes, Feleke |
| author_facet | Shara, Sabura Swennen, Rony L. Deckers, Jozef Weldesenbet, Fantahun Vercammen, Laura Eshetu, Fassil Woldeyes, Feleke Blomme, Guy Merckx, Roel Vancampenhout, Karen |
| author_sort | Shara, Sabura |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Enset (Ensete ventricosum) is a productive, drought-tolerant and multipurpose food security crop grown in the densely populated Ethiopian highlands. It is a so-called orphan crop, and its production suffers from a lack of information on proper soil fertility management and its interaction with bacterial wilt disease caused by the pathogen Xanthomonas campestris pv. musacearum. The aim of this study was therefore to assess soil–plant nutrient variation within enset home gardens at three altitudes (ranging from 2000 to 3000m above sea level – a.s.l.) in the Gamo highlands and investigate whether this variation affects disease prevalence. Altitude in the rift valley covaries with soil leaching, and plant available P, Ca and Mg in soils significantly raised
with decreasing altitude. Soil carbon and most nutrients reached very high levels in the gardens, whereas the more distant outfields were severely nutrient deprived. Differences in management intensity within the garden caused soil pH, conductivity, total organic carbon, total N and available P, K, Ca, Mg, Mn and Fe levels to significantly decline with distance from the house; yet, this decrease in soil nutrients was not mirrored in a response of foliar nutrient content, except for N. Hence, over-fertilization is likely, and establishing evidencebased nutrient recommendations for enset would benefit soil quality and productivity both in the gardens and in the outfields. Disease prevalence was high in the study area, with one-third of the farms affected in the recent past.
Although more experimental work is needed to exclude confounding factors, our data indicate that the effects of altitude, P fertilization, micronutrients and K-Ca-Mg balance are promising avenues for further investigation into Xanthomonas wilt disease susceptibility. |
| format | Journal Article |
| id | CGSpace110901 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Copernicus GmbH |
| publisherStr | Copernicus GmbH |
| record_format | dspace |
| spelling | CGSpace1109012025-11-11T18:59:54Z Altitude and management affect soil fertility, leaf nutrient status and Xanthomonas wilt prevalence in enset gardens Shara, Sabura Swennen, Rony L. Deckers, Jozef Weldesenbet, Fantahun Vercammen, Laura Eshetu, Fassil Woldeyes, Feleke Blomme, Guy Merckx, Roel Vancampenhout, Karen soil fertility crop wild relatives food security altitude xanthomonas ensete fertilidad del suelo especies silvestres afín a las plantas cultivadas seguridad alimentaria Enset (Ensete ventricosum) is a productive, drought-tolerant and multipurpose food security crop grown in the densely populated Ethiopian highlands. It is a so-called orphan crop, and its production suffers from a lack of information on proper soil fertility management and its interaction with bacterial wilt disease caused by the pathogen Xanthomonas campestris pv. musacearum. The aim of this study was therefore to assess soil–plant nutrient variation within enset home gardens at three altitudes (ranging from 2000 to 3000m above sea level – a.s.l.) in the Gamo highlands and investigate whether this variation affects disease prevalence. Altitude in the rift valley covaries with soil leaching, and plant available P, Ca and Mg in soils significantly raised with decreasing altitude. Soil carbon and most nutrients reached very high levels in the gardens, whereas the more distant outfields were severely nutrient deprived. Differences in management intensity within the garden caused soil pH, conductivity, total organic carbon, total N and available P, K, Ca, Mg, Mn and Fe levels to significantly decline with distance from the house; yet, this decrease in soil nutrients was not mirrored in a response of foliar nutrient content, except for N. Hence, over-fertilization is likely, and establishing evidencebased nutrient recommendations for enset would benefit soil quality and productivity both in the gardens and in the outfields. Disease prevalence was high in the study area, with one-third of the farms affected in the recent past. Although more experimental work is needed to exclude confounding factors, our data indicate that the effects of altitude, P fertilization, micronutrients and K-Ca-Mg balance are promising avenues for further investigation into Xanthomonas wilt disease susceptibility. 2021-01 2021-01-19T08:54:23Z 2021-01-19T08:54:23Z Journal Article https://hdl.handle.net/10568/110901 en Open Access application/pdf Copernicus GmbH Shara, S.; Swennen, R.; Deckers, J.; Weldesenbet, F.; Vercammen, L.; Eshetu, F.; Woldeyes, F.; Blomme, G.; Merckx, R.; Vancampenhout, K. (2021) Altitude and management affect soil fertility, leaf nutrient status and Xanthomonas wilt prevalence in enset gardens. SOIL 7 14 p. ISSN: 2199-3971 |
| spellingShingle | soil fertility crop wild relatives food security altitude xanthomonas ensete fertilidad del suelo especies silvestres afín a las plantas cultivadas seguridad alimentaria Shara, Sabura Swennen, Rony L. Deckers, Jozef Weldesenbet, Fantahun Vercammen, Laura Eshetu, Fassil Woldeyes, Feleke Blomme, Guy Merckx, Roel Vancampenhout, Karen Altitude and management affect soil fertility, leaf nutrient status and Xanthomonas wilt prevalence in enset gardens |
| title | Altitude and management affect soil fertility, leaf nutrient status and Xanthomonas wilt prevalence in enset gardens |
| title_full | Altitude and management affect soil fertility, leaf nutrient status and Xanthomonas wilt prevalence in enset gardens |
| title_fullStr | Altitude and management affect soil fertility, leaf nutrient status and Xanthomonas wilt prevalence in enset gardens |
| title_full_unstemmed | Altitude and management affect soil fertility, leaf nutrient status and Xanthomonas wilt prevalence in enset gardens |
| title_short | Altitude and management affect soil fertility, leaf nutrient status and Xanthomonas wilt prevalence in enset gardens |
| title_sort | altitude and management affect soil fertility leaf nutrient status and xanthomonas wilt prevalence in enset gardens |
| topic | soil fertility crop wild relatives food security altitude xanthomonas ensete fertilidad del suelo especies silvestres afín a las plantas cultivadas seguridad alimentaria |
| url | https://hdl.handle.net/10568/110901 |
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