Combining napier grass with leguminous shrubs in contour hedgerows controls soil erosion without competing with crops
We established hedges/barriers of calliandra (Calliandra calothyrsus Meissner), leucaena (Leucaena trichandra (Zucc.) Urban)) and napier grass (Pennisetum purpureum chumach) and combination hedges of either calliandra or leucaena with napier grass on slopes exceeding 5% to study the effect of vegeta...
| Main Authors: | , , , |
|---|---|
| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Springer
2008
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/19950 |
| _version_ | 1855514408171601920 |
|---|---|
| author | Mutegi, J.K. Mugendi, D.N. Verchot, Louis V. Kung'u, J.B. |
| author_browse | Kung'u, J.B. Mugendi, D.N. Mutegi, J.K. Verchot, Louis V. |
| author_facet | Mutegi, J.K. Mugendi, D.N. Verchot, Louis V. Kung'u, J.B. |
| author_sort | Mutegi, J.K. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | We established hedges/barriers of calliandra (Calliandra calothyrsus Meissner), leucaena (Leucaena trichandra (Zucc.) Urban)) and napier grass (Pennisetum purpureum chumach) and combination hedges of either calliandra or leucaena with napier grass on slopes exceeding 5% to study the effect of vegetative barriers on productivity of arable steeplands in central Kenya. Hedges/barriers were pruned regularly and biomass incorporated into the plots. Hedge plots were monitored for soil fertility, soil losses and maize crop yield changes. Inorganic-N concentration in the tree hedge plots was higher than in the control and napier barrier plots after 20 months. Napier grass barriers were the most effective in reducing erosion losses across the two seasons. The effectiveness of napier grass to significantly reduce soil erosion was detectable in one year old napier barriers. Soil loss from all the other one year old vegetative treatmentswas similar to soil loss from the control. Seventeen month old combination hedge plots recorded lower soil losses than tree hedges of the same age (P = 0.012). Maize crop yields throughout the trial period were high and similar for leguminous and combination hedge plots, but lower in the napier grass and control plots. Overall, we observed that the combination hedges seemed to provide a win-win scenario of reduction in soil erosion combined with improvement of maize crop yields and soil fertility enhancement.We conclude that vegetative hedges have a potential for improving soil productivity in arable steep-lands of the central highlands of Kenya, and that in adoption of vegetative hedges for this purpose there are trade-offs between soil conservation, soil fertility and maize crop yields to be considered. |
| format | Journal Article |
| id | CGSpace19950 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2008 |
| publishDateRange | 2008 |
| publishDateSort | 2008 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace199502024-08-27T10:34:47Z Combining napier grass with leguminous shrubs in contour hedgerows controls soil erosion without competing with crops Mutegi, J.K. Mugendi, D.N. Verchot, Louis V. Kung'u, J.B. soil fertility soil erosion leucaena forestry We established hedges/barriers of calliandra (Calliandra calothyrsus Meissner), leucaena (Leucaena trichandra (Zucc.) Urban)) and napier grass (Pennisetum purpureum chumach) and combination hedges of either calliandra or leucaena with napier grass on slopes exceeding 5% to study the effect of vegetative barriers on productivity of arable steeplands in central Kenya. Hedges/barriers were pruned regularly and biomass incorporated into the plots. Hedge plots were monitored for soil fertility, soil losses and maize crop yield changes. Inorganic-N concentration in the tree hedge plots was higher than in the control and napier barrier plots after 20 months. Napier grass barriers were the most effective in reducing erosion losses across the two seasons. The effectiveness of napier grass to significantly reduce soil erosion was detectable in one year old napier barriers. Soil loss from all the other one year old vegetative treatmentswas similar to soil loss from the control. Seventeen month old combination hedge plots recorded lower soil losses than tree hedges of the same age (P = 0.012). Maize crop yields throughout the trial period were high and similar for leguminous and combination hedge plots, but lower in the napier grass and control plots. Overall, we observed that the combination hedges seemed to provide a win-win scenario of reduction in soil erosion combined with improvement of maize crop yields and soil fertility enhancement.We conclude that vegetative hedges have a potential for improving soil productivity in arable steep-lands of the central highlands of Kenya, and that in adoption of vegetative hedges for this purpose there are trade-offs between soil conservation, soil fertility and maize crop yields to be considered. 2008-09 2012-06-04T09:12:53Z 2012-06-04T09:12:53Z Journal Article https://hdl.handle.net/10568/19950 en Limited Access Springer Mutegi, J.K., Mugendi, D.N., Verchot, L.V., Kung'u, J.B. 2008. Combining napier grass with leguminous shrubs in contour hedgerows controls soil erosion without competing with crops . Agroforestry Systems (74) :37-49. DOI 10.1007/s10457-008-9152-3. Springer Netherlands. ISSN: 0167-4366. |
| spellingShingle | soil fertility soil erosion leucaena forestry Mutegi, J.K. Mugendi, D.N. Verchot, Louis V. Kung'u, J.B. Combining napier grass with leguminous shrubs in contour hedgerows controls soil erosion without competing with crops |
| title | Combining napier grass with leguminous shrubs in contour hedgerows controls soil erosion without competing with crops |
| title_full | Combining napier grass with leguminous shrubs in contour hedgerows controls soil erosion without competing with crops |
| title_fullStr | Combining napier grass with leguminous shrubs in contour hedgerows controls soil erosion without competing with crops |
| title_full_unstemmed | Combining napier grass with leguminous shrubs in contour hedgerows controls soil erosion without competing with crops |
| title_short | Combining napier grass with leguminous shrubs in contour hedgerows controls soil erosion without competing with crops |
| title_sort | combining napier grass with leguminous shrubs in contour hedgerows controls soil erosion without competing with crops |
| topic | soil fertility soil erosion leucaena forestry |
| url | https://hdl.handle.net/10568/19950 |
| work_keys_str_mv | AT mutegijk combiningnapiergrasswithleguminousshrubsincontourhedgerowscontrolssoilerosionwithoutcompetingwithcrops AT mugendidn combiningnapiergrasswithleguminousshrubsincontourhedgerowscontrolssoilerosionwithoutcompetingwithcrops AT verchotlouisv combiningnapiergrasswithleguminousshrubsincontourhedgerowscontrolssoilerosionwithoutcompetingwithcrops AT kungujb combiningnapiergrasswithleguminousshrubsincontourhedgerowscontrolssoilerosionwithoutcompetingwithcrops |