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It is widely believed that tropical soils (mainly Oxisols) have excellent physical characteristics such as high infiltration rates, high permeability of water, good and stable soil structure and that consequently, they can support mechanized agriculture. However in the Eastern Plains (Llanos Orie...


Amézquita Collazos, EdgarThomas, Richard J.Rao, Idupulapati M.Molina Lopez, DLHoyos Garcés, Phanor[Use of deep-rooted tropical pastures to build-up an arable layer throught improvement soil properties of an oxisol in the Eastern Plains (Llanos Orientales) of Colombia]Use of deep-rooted tropical pastures to build-up an arable layer throught improvement soil properties of an oxisol in the Eastern Plains (Llanos Orientales) of Colombia
Jiménez Jaén, J.J.Thomas, Richard J.[Nature's plow: soil macroinvertebrate communities in the neotropical savannas of Colombia]Nature's plow: soil macroinvertebrate communities in the neotropical savannas of Colombia

Agricultural productivity and farm household welfare in areas of severe land degradation can be improved through ecosystem-based interventions. Decisions on the possible types of practices and investments can be informed using evidence of potential benefits. Using farm household data together wit...


Getnet, KindieMekuria, Wolde M.Langan, Simon J.Rivington, M.Novo, P.Black, H.[Ecosystem-based interventions and farm household welfare in degraded areas: comparative evidence from Ethiopia]Ecosystem-based interventions and farm household welfare in degraded areas: comparative evidence from Ethiopia

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

Fallow management plays a key role in supplying nutrients to the growing crop, suppressing weeds, reducing pests and diseases, and improving the sustainability of cropping systems in the humid forest zone of West and Central Africa. We evaluated soil nutrient concentration, soil acidity and soil ...


Koutika, L.S.Sanginga, N.Vanlauwe, BernardWeise, S.F.[Chemical properties and soil organic matter assessment under fallow systems in the forest margins benchmark]Chemical properties and soil organic matter assessment under fallow systems in the forest margins benchmark

Earthworm populations (predominantly Hyperiodrilus africanus and Eudrilus eugeniae) were sampled monthly for 1 yr during 1994 and 1995 in natural regrowth vegetation fallow (dominated by the natural fallow shrub Chromolaena odorata L.), planted fallow (the woody species Senna siamea Lam., Leucaen...


Tian, G.Olimah, J.Adeoye, G.Kang, B.[Regeneration of earthworm populations in a degraded soil by natural and planted fallows under humid tropical conditions]Regeneration of earthworm populations in a degraded soil by natural and planted fallows under humid tropical conditions

Soil organic C (SOC), the largest terrestrial C pool, has been shown to be sensitive to agricultural disturbance. In the Andean Puna, agricultural expansion is thought to be jeopardizing the large SOC stock sequestered in its soils. In this paper, we assessed the impact changes in land use have o...


Rolando, J.L.Dubeux, J.C.Pérez, W.Ramírez, D.Turin, C.Ruiz Moreno, M.Comerford, N.Mares, V.García, S.Quiróz, R.[Soil organic carbon stocks and fractionation under different land uses in the Peruvian high-Andean Puna.]Soil organic carbon stocks and fractionation under different land uses in the Peruvian high-Andean Puna.

Thomas, Richard J.Ayarza, Miguel Angel[Sustainable land management for the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality]Sustainable land management for the oxisols of the Latin American savannas: dynamics of soil organic matter and indicators of soil quality
Frazão, JoanaGoede, Ron G.M. deCapowiez, YvanPulleman, Mirjam[Soil structure formation and organic matter distribution as affected by earthworm species interactions and crop residue placement]Soil structure formation and organic matter distribution as affected by earthworm species interactions and crop residue placement

In cropping systems with limited amounts of external inputs, the soil organic matter pool (SOM) may contribute significantly to plant nutrition. The impact of organic inputs on total SOM and particulate organic matter (POM) N contents as affected by soil type and the relationships between sources...


Vanlauwe, BernardAman, S.Aihou, K.Tossah, B.K.Adebiyi, V.Sanginga, N.Lyasse, O.Diels, J.Merckx, R.[Alley cropping in the moist savanna of West Africa III. Soil organic matter fractionation and soil productivity]Alley cropping in the moist savanna of West Africa III. Soil organic matter fractionation and soil productivity

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