Productivity barriers and opportunities influencing smallholder irrigation sustainability in Zimbabwe were identified using case studies of the Silalatshani and Mkoba irrigation schemes. The major barriers were poor infrastructure and soil fertility, and poor access to farm inputs, farm implement...
Moyo, Martin
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Rooyen, Andre F. van
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Chivenge, P.P.
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Bjornlund, Henning
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[Irrigation development in Zimbabwe: understanding productivity barriers and opportunities at Mkoba and Silalatshani irrigation schemes]
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Irrigation development in Zimbabwe: understanding productivity barriers and opportunities at Mkoba and Silalatshani irrigation schemes
Traditionally, crop production in sub-Saharan Africa (SSA) depends primarily on mining soil nutrients. Integrated Soil Fertility Management (ISFM) is an approach for intensifying agriculture in SSA that aims at maximizing the agronomic efficiency (AE) of applied nutrient inputs. ISFM contains the...
Vanlauwe, Bernard
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Kihara, Job
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Chivenge, P.P.
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Pypers, Pieter
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Coe, R.
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Six, Johan
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[Agronomic use efficiency of N fertilizer in maize-based systems in sub-Saharan Africa within the context of integrated soil fertility management]
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Agronomic use efficiency of N fertilizer in maize-based systems in sub-Saharan Africa within the context of integrated soil fertility management
Aggregation and stabilization of soil organic C (SOC) and N are highly dependent on soil texture and addition of organic resources (ORs). While OR quality may influence SOC and N stabilization within aggregates, the simultaneous addition of N-fertilizers may enhance OR decomposition resulting in ...
Chivenge, P.P.
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Vanlauwe, Bernard
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Gentile, R
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Six, Johan
,
[Comparison of organic versus mineral resource effects on short-term aggregate carbon and nitrogen dynamics in a sandy soil versus a fine textured soil]
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Comparison of organic versus mineral resource effects on short-term aggregate carbon and nitrogen dynamics in a sandy soil versus a fine textured soil
The combined application of organic resources (ORs) and mineral fertilizers is increasingly gaining recognition as a viable approach to address soil fertility decline in sub-Saharan Africa (SSA). We conducted a meta-analysis to provide a comprehensive and quantitative synthesis of conditions unde...
Chivenge, P.P.
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Vanlauwe, Bernard
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Six, Johan
,
[Does the combined application of organic and mineral nutrient sources influence maize productivity? a meta analysis]
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Does the combined application of organic and mineral nutrient sources influence maize productivity? a meta analysis
The management of agroecosystems plays a crucial role in the global carbon cycle with soil tillage leading to known organic carbon redistributions within soils and changes in soil CO2 emissions. Yet, discrepancies exist on the impact of tillage on soil CO2 emissions and on the main soil and envir...
Abdalla, K.
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Chivenge, P.P.
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Ciais, Philippe
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Chaplot, V.
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[No-tillage lessens soil CO2 emissions the most under arid and sandy soil conditions: results from a meta-analysis]
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No-tillage lessens soil CO2 emissions the most under arid and sandy soil conditions: results from a meta-analysis
Modern agricultural systems that promote cultivation of a very limited number of crop species have relegated indigenous crops to the status of neglected and underutilised crop species (NUCS). The complex interactions of water scarcity associated with climate change and variability in sub-Saharan ...
Chivenge, P.P.
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Mabhaudhi, T.
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Modi, A.
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Mafongoya, P.L.
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[The potential role of neglected and underutilised crop species as future crops under water scarce conditions in sub-Saharan Africa.]
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The potential role of neglected and underutilised crop species as future crops under water scarce conditions in sub-Saharan Africa.
Process controls on water, sediment, nutrient, and organic carbon exports from the landscape through runoff are not fully understood. This paper provides analyses from 446 sites worldwide to evaluate the impact of environmental factors (MAP and MAT: mean annual precipitation and temperature; CLAY...
Mutema, M.
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Chaplot, V.
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Jewitt, G.P.W.
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Chivenge, P.P.
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Bl?schl, G.
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[Annual water, sediment, nutrient and organic carbon fluxes in river basins: a global meta-analysis as a function of scale]
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Annual water, sediment, nutrient and organic carbon fluxes in river basins: a global meta-analysis as a function of scale
The on- and off-site effects of soil erosion in many environments are well known, but there is still limited understanding of the soil loss fluxes in downstream direction due, among other factors, to scarce and poor quality. A four year study to (i) evaluate water and sediment fluxes at different...
Mutema, M.
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Jewitt, G.P.W.
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Chivenge, P.P.
,
Kusangaya, S.
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Chaplot, V.
,
[Spatial scale impact on daily surface water and sediment fluxes in Thukela river, South Africa.]
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Spatial scale impact on daily surface water and sediment fluxes in Thukela river, South Africa.
Chivenge, P.P.
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Vanlauwe, Bernard
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Gentile, R
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Wangechi, HK
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Mugendi, DN
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Kessel, Chris van
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Six, Johan
,
[Organic and mineral input management to enhance crop productivity in Central Kenya]
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Organic and mineral input management to enhance crop productivity in Central Kenya
Organic C inputs and their rate of stabilization influence C sequestration and nutrient cycling in soils. This study was undertaken to explore the influence of the combined application of different quality organic resources (ORs) with N fertilizers on the link between aggregate dynamics and soil ...