In low-input land-use systems combining timber trees with shade-tolerant understorey crops, it is essential to establish the effects of tree density upon weeds and the contribution of weeds to competition and nutrient cycling. Adjusting tree density may alter weed competition for light, water and...
Norgrove, L.
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Hauser, S.
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Weise, S.F.
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[Response of Chromolaena odorata to different tree densities in a tropical agrisilvicultural system. Aboveground biomass production, partitioning, decomposition and nutrient release]
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Response of Chromolaena odorata to different tree densities in a tropical agrisilvicultural system. Aboveground biomass production, partitioning, decomposition and nutrient release
Tree litter fall was monitored for 2 years in two Terminalia ivorensis A. Chev. plantations in the humid tropics of southern Cameroon. The plantations were 6 and 17 years old when they were each thinned to two timber stand densities (TSD) and understorey food crops were introduced. Leaf litter wa...
Norgrove, L.
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Hauser, S.
,
[Leaf properties, litterfall and nutrient inputs of Terminalia ivorensis at different tree stand densities in a tropical timberfood crop multistrata system]
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Leaf properties, litterfall and nutrient inputs of Terminalia ivorensis at different tree stand densities in a tropical timberfood crop multistrata system
Soil organic matter (SOM) has a key role in maintaining soil fertility in weathered soils in the tropics. This study was conducted to determine the contribution of different SOM fractions to the cation exchange capacity (CEC) of a tropical soil as influenced by organic matter inputs of different ...
Oorts, K.
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Vanlauwe, Bernard
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Cofie, Olufunke O.
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Sanginga, N.P.
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Merckx, R.
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[Charge characteristics of soil organic matter fractions in a Ferric Lixisol under some multipurpose trees]
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Charge characteristics of soil organic matter fractions in a Ferric Lixisol under some multipurpose trees
Clustering of ten woody and shrub legumes (Acacia auriculiformis, Albizia lebbeck, Gliricidia sepium, Leucaena diversifolia, L. leucocephala var. K28 and var. K636, Lonchocarpus sericeus, Cajanus cajan, Crotalaria juncea and Tephrosia candida) was performed using the partitioning around medoid an...
Kadiata, B.
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Nokoe, S.
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[Clustering shrub and tree legumes grown in acid and nonacid soil conditions using rank performance data]
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Clustering shrub and tree legumes grown in acid and nonacid soil conditions using rank performance data
The impact of land use (unfertilized continuous maize cropping, unfertilized and fertilized alley cropping with maize, Gliricidia sepium tree fallow, natural fallow) on the soil organic matter (SOM) status and general soil fertility characteristics were investigated for a series of soils represen...
Vanlauwe, Bernard
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Aihou, K.
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Tossah, S.
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Aman, B.K.
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Diels, J.
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Lyasse, O.
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Hauser, S.
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Sanginga, P.
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Merckx, R.
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[Nitrogen and phosphorus uptake by maize as affected by particulate organic matter quality, soil characteristics, and landuse history for soils from the West African moist savanna zone]
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Nitrogen and phosphorus uptake by maize as affected by particulate organic matter quality, soil characteristics, and landuse history for soils from the West African moist savanna zone
Agricultural sector plays a key role towards achieving healthier diets that are deemed critical for improving health and nutritional outcomes. To what extent the current food supply systems support healthy diets remains unknown. Using annual and nationally representative data on crop and livestoc...
Baye, K.
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Hirvonen, K.
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Dereje, M.
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Remans, R.
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[Energy and nutrient production in Ethiopia, 2011-2015: Implications to supporting healthy diets and food systems]
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Energy and nutrient production in Ethiopia, 2011-2015: Implications to supporting healthy diets and food systems
Management of harvested (senescent) banana pseudostems has implications for efficiency of nutrient use for sole cropped as well as intercropped bananas. Two studies were conducted on aspects of nutrient flows from senescent pseudostems. Sixty one and 55% of the initial N and P, respectively, in s...
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 ...
Planted fallow systems under slash and mulch management were compared with natural fallow systems at two farms (BM1 and BM2) in the Colombian Andes. The BM1 site was relatively more fertile than the BM2 site. Planted fallow systems evaluated included Calliandra calothyrsus CIAT 20400 (CAL), Ind...
Barrios, E.
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Cobo Borrero, Juan G.
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[Plant growth, biomass production and nutrient accumulation by slash/mulch agroforestry systems in tropical hillsides of Colombia]
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Plant growth, biomass production and nutrient accumulation by slash/mulch agroforestry systems in tropical hillsides of Colombia
Organic resources constitute a major source of nutrient inputs to both soils and livestock in smallholder tropical production systems. Determination of resource quality attributes using current laboratory methods is both timely and costly. This study tested visible and near-infrared (wavelengths ...
Shepherd, Keith D.
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Palm, C.A.
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Gachengo, CN
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Vanlauwe, Bernard
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[Rapid characterization of organic resource quality for soil and livestock management in tropical agroecosystems using near-infrared spectroscopy]
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Rapid characterization of organic resource quality for soil and livestock management in tropical agroecosystems using near-infrared spectroscopy