Show simple item record

Improvement of the physical fertility of a degraded Alfisol with planted and natural fallows under humid tropical conditions

dc.contributor.authorSalako, F.
dc.contributor.authorHauser, S.
dc.contributor.authorBabalola, O.
dc.contributor.authorTian, G.
dc.date.accessioned2019-12-04T11:21:22Z
dc.date.available2019-12-04T11:21:22Z
dc.date.issued2001
dc.identifier.citationSalako, F., Hauser, S., Babalola, O. & Tian, G. (2001). Improvement of the physical fertility of a degraded Alfisol with planted and natural fallows under humid tropical conditions. Soil Use and Management, 17(1), 41-47.
dc.identifier.issn0266-0032
dc.identifier.urihttps://hdl.handle.net/20.500.12478/3760
dc.description.abstractTopsoil (0–15 cm) bulk density, aggregate stability, soil dispersibility, water retention and infiltration were measured between 1989 and 1996 on an Alfisol under rehabilitation in southwestern Nigeria. The planted leguminous species were Pueraria phaseoloides, Senna siamea, Leucaena leucocephala, Acacia leptocarpa and A. auriculiformis. Also, plots with natural fallow and maize/cassava intercropping were included. Level (minimum) and mound tillage with hoes was adopted for the cultivated areas under study after 4 and 6 year fallow periods. Under fallow, the soil bulk density decreased from1.56 to 1.11 t m73.The continuously cropped treatment (level tillage) had significantly higher bulk density than the fallowed subplots after 6 years. Mean soil penetrometer resistance ranged from 75 to 157 kPa for fallowed plots and from 192 to 295 kPa for the continuously cropped (level tillage) subplot. Surface soilwater contentswere similar for all the treatments during the soil strength measurements. Although soil aggregates were generally of low stability and not well formed, they were improved by fallowing. Soil structural improvement by planted fallows was similar to that by natural fallow, but the trees were more promising for long-term fallow (>6 years) than the herbaceous P. phaseoloides. However, the improvement in soil structure after 4 or 6 year fallow could not be maintained in subsequent cropping. Furthermore, the significant improvement in soil bulk density caused by A. auriculiformis and natural fallow was more rapidly lost on the cultivated subplots compared with other fallow treatments. Thus, soil structure recovery under a fallow does not imply a sustained improvement when stress is applied to this soil. Post-fallow soil management options such as residue incorporation and tillage to ameliorate compaction or soil strength will be necessary to enhance the improvements by fallow species.
dc.language.isoen
dc.subjectSoil Fertility
dc.subjectAlfisols
dc.subjectFallow
dc.subjectLegumes
dc.subjectTrees
dc.subjectSoil Physical Properties
dc.subjectHumid Tropics
dc.titleImprovement of the physical fertility of a degraded Alfisol with planted and natural fallows under humid tropical conditions
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationFederal University of Agriculture, Nigeria
cg.contributor.affiliationUniversity of Ibadan
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectSoil Fertility
cg.iitasubjectClimate Change
cg.iitasubjectGrain Legumes
cg.iitasubjectSoil Health
cg.iitasubjectSoil Information
cg.iitasubjectForestry
cg.accessibilitystatusLimited Access
local.dspaceid95915
cg.identifier.doihttps://doi.org/10.1111/j.1475-2743.2001.tb00006.x


Files in this item

Thumbnail
Name:
salako-improvement-2001.pdf
Size:
752.1Kb
Format:
PDF
View/Open

This item appears in the following Collection(s)

Show simple item record