| dc.contributor.author | Hauser, S. |
| dc.date.accessioned | 2019-12-04T11:14:49Z |
| dc.date.available | 2019-12-04T11:14:49Z |
| dc.date.issued | 2008 |
| dc.identifier.citation | Hauser, S. (2008).Groundnut cassava maize intercrop yields over three cycles of planted tree fallow/crop rotations on Ultisol in Southern Cameroon. Biological Agriculture and Horticulture, 25, 379-399. |
| dc.identifier.issn | 0144-8765 |
| dc.identifier.uri | https://hdl.handle.net/20.500.12478/2861 |
| dc.description.abstract | Lack of crop yield response to planted tree fallow led to introducing a two-year fallow phase to
determine if planted tree fallow can improve soil fertility and yields over a no-tree control. Three
cycles of two years fallow followed by slash-and-burn land preparation and one year of groundnut
/cassava/maize intercropping were conducted with Senna spectabilis, Flemingia macrophylla
and Dactyladenia barteri as planted hedgerow fallows and a no-tree control on an Ultisol in
southern Cameroon. The land had been continuously cropped to maize/cassava intercrop for 5
years previous to the first two-year fallow phase. Groundnut grain yields were unaffected by
fallow system in 1998 and 2001 and the sum of the three cropping years. Maize grain yield was
unaffected by fallow system in 1998. In 2001 and 2004 maize grain yield was highest in the S.
spectabilis system. Total maize grain yield across the three cropping years was higher in the F.
macrophylla and S. spectabilis systems than in the D. barteri system. Cassava root yields were in
all years and the sum of the 3 years unaffected by fallow system. Cassava root (1998, 2001) and
groundnut grain (2001) yields had significant spatial responses to the distance from hedgerows,
with yield increases with increasing distance from hedgerows. Annual biomass production of
hedgerow prunings during cropping phases ranged from zero (D. barteri) to 3.4 Mg ha–1 (S.
spectabilis). During the growth of groundnut and maize, hedgerows produced < 1 Mg ha–1 in
1998, < 0.6 Mg ha–1 in 2001 and < 0.8 Mg ha–1 at any individual pruning. Combined relative crop
yields over the three cycles were lower in planted fallow than in the no-tree control. The N export
with groundnut and maize grain and cassava roots, as an indicator of crude protein production
was lower in the planted hedgerow fallow systems than in no-tree control. The planted fallow
hedgerow system appears unsuitable to improve crop yields because the nutrient supply from
prunings is low due to their low biomass production. Yet on short distances, the spatial response
of cassava and groundnut indicates competition between hedgerows and crops, which was most
pronounced on cassava and groundnut in the S. spectabilis system. The crop combination appears
incompatible as benefits realized by the maize were outweighed by losses in groundnut. |
| dc.language.iso | en |
| dc.subject | Senna Spectabilis |
| dc.subject | Cassava Root Yields |
| dc.subject | Biomass |
| dc.subject | Flemingia Macrophylla |
| dc.subject | Maize Grain Yield |
| dc.subject | Dactyladenia Barteri |
| dc.subject | Groundnuts |
| dc.title | Groundnut cassava maize intercrop yields over three cycles of planted tree fallow/crop rotations on Ultisol in Southern Cameroon |
| dc.type | Journal Article |
| dc.description.version | Peer Review |
| cg.contributor.affiliation | International Institute of Tropical Agriculture |
| cg.coverage.region | Africa |
| cg.coverage.region | Central Africa |
| cg.coverage.country | Cameroon |
| cg.isijournal | ISI Journal |
| cg.authorship.types | CGIAR single centre |
| cg.iitasubject | Food Security |
| cg.iitasubject | Soil Fertility |
| cg.iitasubject | Cassava |
| cg.iitasubject | Plant Breeding |
| cg.iitasubject | Smallholder Farmers |
| cg.iitasubject | Genetic Improvement |
| cg.iitasubject | Soil Information |
| cg.iitasubject | Maize |
| cg.iitasubject | Crop Systems |
| cg.iitasubject | Disease Control |
| cg.iitasubject | Soil Health |
| cg.iitasubject | Farm Management |
| cg.iitasubject | Food Security |
| cg.iitasubject | Soil Surveys And Mapping |
| cg.iitasubject | Handling, Transport, Storage And Protection Of Agricultural Products |
| cg.iitasubject | Domestic Trade |
| cg.accessibilitystatus | Limited Access |
| local.dspaceid | 93962 |
