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Earthworm surface cast production and nutrient turnover through casts were measured for 3 years in a 17-year-old timber plantation in southern Cameroon after selective reduction to two timber stand densities (TSDs) and understorey cropping with plantain and tannia. Neither understorey cropping no...


Norgrove, L.Hauser, S.[Production and nutrient content of earthworm casts in a tropical agrisilvicultural system]Production and nutrient content of earthworm casts in a tropical agrisilvicultural system

Deforestation in the humid tropics poses an increasing threat to natural forests and future timber supplies. Smallholder slash and burn farming and timber extraction are the major causes of deforestation in the Congo basin. Therefore, the feasibility of an alternative to slash and burn, the combi...


Norgrove, L.Hauser, S.[Yield of plantain grown under different tree densities and slash and mulch versus slash and burn management in an agrisilvicultural system in southern Cameroon]Yield of plantain grown under different tree densities and slash and mulch versus slash and burn management in an agrisilvicultural system in southern Cameroon

Data are presented for termite assemblages across an anthropogenic disturbance gradient in the humid forest zone of West and Central Africa. Sampling was by standardised 100m × 2m transects in: primary forest, several ages of regenerating forest, agroforestry plots, short fallows, mixed food crop...


Eggleton, P.Bignell, D.Hauser, S.Dibog, L.Norgrove, L.Madong, B.[Termite diversity across an anthropogenic disturbance gradient in the humid forest zone of West Africa]Termite diversity across an anthropogenic disturbance gradient in the humid forest zone of West Africa

Earthworms can have positive effects upon crop growth in the tropics. If soils are to be managed sustainably, then more attention should be paid to the effects of cultivation and cropping practices upon earthworms. When forest vegetation is cleared, slashed, burned and land is tilled and cultivat...


Norgrove, L.Csuzdi, C.Hauser, S.[Effects of cropping and tree density on earthworm community composition and densities in central Cameroon]Effects of cropping and tree density on earthworm community composition and densities in central Cameroon

Two methods of intensifying crop production in ‘no-external-input’ slash and burn crop fallow rotation systems: increased crop density and increased cropping frequency, were tested on an Ultisol in southern Cameroon. Two common fallow types, secondary forest (forest fallow) and young...


Hauser, S.Norgrove, L.Nkem, J.[Groundnut/maize/cassava intercrop yield response to fallow age, cropping frequency and crop plant density on an Ultisol in southern Cameroon]Groundnut/maize/cassava intercrop yield response to fallow age, cropping frequency and crop plant density on an Ultisol in southern Cameroon

Plantain is an important staple in West and Central Africa, where it is predominantly grown by smallholder farmers. On-farm data are rare but yields are considered to be low. We collated actual yields in the region, reviewed regional plantain research published from 1976 to 2013, then estimated w...


Norgrove, L.Hauser, S.[Improving plantain (Musa spp. AAB) yields on smallholder farms in West and Central Africa]Improving plantain (Musa spp. AAB) yields on smallholder farms in West and Central Africa
Hauser, S.Vanlauwe, BernardAsawalam, D.Norgrove, L.[Role of earthworms in traditional and improved lowinput agricultural systems in West Africa]Role of earthworms in traditional and improved lowinput agricultural systems in West Africa

Norgrove, L.Hauser, S.[Biophysical criteria used by farmers for fallow selection in West and Central Africa]Biophysical criteria used by farmers for fallow selection in West and Central Africa

Appropriate canopy management, including planting density and pruning, and application of fertilizer may increase flowering success and seed and oil yields of Jatropha curcasL.Twofieldexperimentswereperformedfrom2009to 2011 in Balaka, Malawi, to assess the effect of planting density and pruning r...


Negussie, A.Achten, W.M.J.Norgrove, L.Mekuria, Wolde M.Hadgu, K.M.Both, G. deLeroy, B.Hermy, M.Muys, B.[Initial effects of fertilization and canopy management on flowering and seed and oil yields of Jatropha curcas L. in Malawi]Initial effects of fertilization and canopy management on flowering and seed and oil yields of Jatropha curcas L. in Malawi

We report on an attempt to distinguish cropped from fallowed land and young from old fallow by the rate of decomposition of a standard material, to contribute towards the development of simple, yet reliable indicators of soil quality and agricultural sustainability on tropical soils. In three sou...


Hauser, S.Gang, E.Norgrove, L.Birang, M.[Decomposition of plant material as an indicator of ecosystem disturbance in tropical land use systems]Decomposition of plant material as an indicator of ecosystem disturbance in tropical land use systems

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