Crop growth on acid sandy soils of the Sudano-Sahelian zone is primarily limited by the low amounts of organic matter and available mineral nutrients in the topsoil. The shortening of fallow periods with population growth, the exploitation of fire wood, spatial nutrient transfers by wind and wate...
Buerkert, Andreas
,
Hiernaux, Pierre H.Y.
,
[Nutrients in the West African Sudano-Sahelian zone: Losses, transfers and role of external inputs]
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Nutrients in the West African Sudano-Sahelian zone: Losses, transfers and role of external inputs
Land degradation is a great threat for the future and it requires great effort and resources to ameliorate. The major causes of land degradation in Ethiopia are the rapid population increase, severe soil loss, deforestation, low vegetative cover and unbalanced crop and livestock production. Inapp...
Traoré, K.
,
Zemadim, Birhanu
,
Dembele, C.O.
,
Dicko, M.
,
Traoré, K.
,
Samake, O.
,
Tabo, Ramadjita
,
[Evaluating the impact of contour bunding technology on runoff, soil erosion and crop yield in southern Mali]
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Evaluating the impact of contour bunding technology on runoff, soil erosion and crop yield in southern Mali
Land and water degradation due to on-site soil/nutrient loss and off-site pollution/sedimentation are serious environmental problems. Landscape planning and management tools are essential to implement best management practices targeted at locations where they are needed most. Although many soil/w...
Tamene, Lulseged
,
Bao Le Quang
,
Vlek, Paul L.G.
,
[A landscape planning and management tool for land and water resources management: an example application in northern Ethiopia]
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A landscape planning and management tool for land and water resources management: an example application in northern Ethiopia
Chirinda, Ngonidzashe
,
Roncossek, Svenja Doreen
,
Heckrath, Goswin
,
Elsgaard, Lars
,
Kaag Thomsen, Ingrid
,
Eivind Olesen, Jorgen
,
[Root and soil carbon distribution at shoulderslope and footslope positions of temperate toposequences cropped to winter wheat]
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Root and soil carbon distribution at shoulderslope and footslope positions of temperate toposequences cropped to winter wheat
Since the paper by Giller et al. (2009), the debate surrounding the suitability of conservation agriculture (CA) for African smallholders has remained polarized between proponents and opponents. The debate also gave rise to a few studies that attempted to identify the “niche” where CA would fit i...
Baudron, Frédéric
,
Thierfelder, Christian
,
Nyagumbo, Isaiah
,
Gerard, Bruno G.
,
[Where to Target Conservation Agriculture for African Smallholders? How to Overcome Challenges Associated with its Implementation? Experience from Eastern and Southern Africa]
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Where to Target Conservation Agriculture for African Smallholders? How to Overcome Challenges Associated with its Implementation? Experience from Eastern and Southern Africa
Soil degradation is a major problem in Ethiopia. Depletion of soil organic matter is a cause of low agricultural productivity, as soils become less fertile and less resilient to extreme weather events, which are expected to increase with climate change. Further, this could increase the risk of cr...
International Water Management Institute
,
[Reducing soil degradation to increase resilience to climate change and strengthen livelihoods in Ethiopia.]
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Reducing soil degradation to increase resilience to climate change and strengthen livelihoods in Ethiopia.
Predo, C.
,
Grist, P.
,
Menz, K.
,
Ranola, R.F.
,
[Estimating the on-site costs of soil erosion in the Philippines: the replacement cost approach]
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Estimating the on-site costs of soil erosion in the Philippines: the replacement cost approach
A study was carried out in the Sudan savanna zone in the Upper East Region of Ghana to assess the rate of sediment-bound nutrient export (NE) into five small reservoirs (Dua, Doba, Zebilla, Kumpalgogo and Bugri) and to analyse the implications of this export. The catchment soils and reservoir sed...
Amegashie, BK
,
Quansah, C
,
Agyare, W.A.
,
Tamene, Lulseged
,
Vlek, Paul L.G.
,
[Sediment-bound nutrient export from five small reservoir catchments and its implications for the Sudan savanna zone of Ghana]
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Sediment-bound nutrient export from five small reservoir catchments and its implications for the Sudan savanna zone of Ghana
Gabiri, G
,
Obando, JA
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Tenywa, M.M.
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Majaliwa, J.G.M.
,
Kizza, CL
,
Zizinga, A
,
Buruchara, Robin A.
,
[Soil and nutrient losses under cultivated bush and climbing beans on terraced humid highland slopes of southwestern Uganda]
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Soil and nutrient losses under cultivated bush and climbing beans on terraced humid highland slopes of southwestern Uganda