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Amoah, PhilipAdamtey, N.Cofie, Olufunke O.[Effect of urine, poultry manure, and dewatered faecal sludge on agronomic characteristics of cabbage in Accra, Ghana]Effect of urine, poultry manure, and dewatered faecal sludge on agronomic characteristics of cabbage in Accra, Ghana

This paper reports on a Participatory Learning and Action Research (PLAR) process that was initiated in three villages in eastern Uganda in September 1999 to enable small-scale farmers to reverse nutrient depletion of their soils profitably by increasing their capacity to develop, adapt and use i...


Esilaba, Anthony O.Byalebeka, J.B.Delve, Robert J.Okalebo, JRSsenyange, DMbalule, MSsali, H.[On farm testing of integrated nutrient management strategies in Eastern Uganda]On farm testing of integrated nutrient management strategies in Eastern Uganda

There is an increasing interest in the use of cassava roots for food and industrial purposes especially in the baking industry in Nigeria. Development of some cassava mosaic disease (CMD) resistant clones and application of inorganic fertilizers are principal strategies targeted in the country to...


Shittu, T.Dixon, A.Awonorin, S.Sanni, L.O.Maziya-Dixon, B.B.[Bread from composite cassava wheat flour. II: effect of cassava genotype and nitrogen fertilizer on bread quality]Bread from composite cassava wheat flour. II: effect of cassava genotype and nitrogen fertilizer on bread quality

The two years on-farm tillage research during the 1999 and 2000 cropping seasons in Ethiopian highland Vertisol area demonstrated the importance of adapting cultural practices into participatory trials. The minimum tillage package could be an effective intervention for soil conservation due to th...


Astatke, A.Mamo, T.Peden, Donald G.Diedhiou, M.[Participatory on-farm conservation tillage trial in the Ethiopian highland Vertisols: The impact of potassium application on crop yields]Participatory on-farm conservation tillage trial in the Ethiopian highland Vertisols: The impact of potassium application on crop yields

The vast majority of farmers in sub-Saharan Africa depend on rainfed agriculture for food production and livelihood. Various factors including but not limited to rainfall variability, land degradation, and low soil fertility constrain agricultural productivity in the region. The objectives of thi...


Worqlul, A.W.Dile, Y.T.Schmitter, PetraJeong, J.Meki, M.N.Gerik, T.J.Srinivasan, R.Lefore, Nicole[Water resource assessment, gaps, and constraints of vegetable production in Robit and Dangishta watersheds, Upper Blue Nile Basin, Ethiopia]Water resource assessment, gaps, and constraints of vegetable production in Robit and Dangishta watersheds, Upper Blue Nile Basin, Ethiopia

The productivity and nutritive value of Chamaecrista rotundifolia cv. Wynn, Centrosema pascuorum cv. Cavalcade, Stylosanthes guianensis cv. Pucallpa and S. hamata cv. Verano as affected by single superphosphate fertilisation (SSP) and weed control were measured during the dry season in subhumid N...


Peters, MichaelTarawali, Shirley A.Alkamper, J.[Dry season performance of four tropical pasture legumes in subhumid west Africa as influenced by superphosphate application and weed control]Dry season performance of four tropical pasture legumes in subhumid west Africa as influenced by superphosphate application and weed control

Four contrasting varieties of cassava (Manihot esculenta Crantz) were grown for ten months over two consecutive seasons in hillside Colombia with or without nitrogen, phosphorus and potassium fertilization. Sequential harvests were every two months. The two varieties well adapted to acid soils (C...


Pellet, DEl-Sharkawy, Mabrouk A.[Cassava varietal response to fertilization: Growth dynamics and implications for cropping sustainability]Cassava varietal response to fertilization: Growth dynamics and implications for cropping sustainability

Major challenges for combined use of organic and mineral nutrient sources in smallholder agriculture include variable type and quality of the resources, their limited availability, timing of their relative application and the proportions at which the two should be combined. Short-term nutrient su...


Mtambanengwe, F.Mapfumo, PaulVanlauwe, Bernard[Comparative short-term effects of different quality organic resources on maize productivity under two different environments in Zimbabwe]Comparative short-term effects of different quality organic resources on maize productivity under two different environments in Zimbabwe
Vanlauwe, BernardWendt, J.Giller, Ken E.Corbeels, MarcGerard, Bruno G.[Response to Sommer et al. (2014) Fertiliser use is not required as a fourth principle to define conservation agriculture]Response to Sommer et al. (2014) Fertiliser use is not required as a fourth principle to define conservation agriculture

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