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This study presents results from a farmer survey conducted with 560 rice farmers from 27 villages spread over five hubs (concentration areas of rice production and processing) in three different countries in Eastern Africa (Ethiopia, Tanzania and Madagascar). The main research objective was to as...


Achandi, E.L.Mujawamariya, G.Agboh-Noameshie, A.R.Gebremariam, S.Rahalivavololona, N.Rodenburg, J.[Women's access to agricultural technologies in rice production and processing hubs: A comparative analysis of Ethiopia, Madagascar and Tanzania]Women's access to agricultural technologies in rice production and processing hubs: A comparative analysis of Ethiopia, Madagascar and Tanzania

Competition from weeds is one of the major biophysical constraints to rice (Oryza spp.) production in sub-Saharan Africa. Smallholder rice farmers require efficient, affordable and labour-saving weed management technologies. Mechanical weeders have shown to fit this profile. Several mechanical we...


Johnson, J-M.Rodenburg, J.Tanaka, A.Senthilkumar, K.Ahouanton, K.Dieng, I.Klotoe, A.Akakpo, C.Segda, Z.Yameogo, L.P.Gbakatchetche, H.Acheampong, G.K.Bam, R.K.Bakare, O.S.Kalisa, A.Gasore, E.R.Ani, S.Ablede, K.Saito, K.[Farmers' perceptions on mechanical weeders for rice production in sub-Saharan Africa]Farmers' perceptions on mechanical weeders for rice production in sub-Saharan Africa

In low-input rice-maize rotation systems in the hills of central Madagascar, farmers deal with erratic rainfall, poor soils, high soil erosion risks and infestation by the parasitic weed Striga asiatica (L.) Kuntze. Practices combining zero-tillage with permanent soil cover by intercropped legume...


Randrianjafizanaka, M.T.Autfray, P.Andrianaivo, A.P.RatsimialaRamonta, I.Rodenburg, J.[Combined effects of cover crops, mulch, zero-tillage and resistant varieties on Striga asiatica (L.) Kuntze in rice-maize rotation systems]Combined effects of cover crops, mulch, zero-tillage and resistant varieties on Striga asiatica (L.) Kuntze in rice-maize rotation systems

The parasitic weed Rhamphicarpa fistulosa is threatening rainfed lowland rice production in Benin. The aim of this study was to explore factors (such as biophysical characters of the rice growing environment, farmers’ management practices, and socioeconomic characteristics) that affect the infest...


N’cho SMourits, M.Rodenburg, J.Demont, M.Oude Lansink, Alfons G.[Determinants of parasitic weed infestation in rainfed lowland rice in Benin]Determinants of parasitic weed infestation in rainfed lowland rice in Benin

Rice is an increasingly important commodity in sub-Saharan Africa. In Tanzania, the rice yield gap is as high as 87%, due to a combination of production constraints and sub-optimal crop management. Reducing this yield gap may be partly achieved through the introduction and dissemination of good a...


Senthilkumar, K.Tesha, B.J.Mghase, J.Rodenburg, J.[Increasing paddy yields and improving farm management: results from participatory experiments with good agricultural practices (GAP) in Tanzania]Increasing paddy yields and improving farm management: results from participatory experiments with good agricultural practices (GAP) in Tanzania

If future rice production is to contribute to food security for the increasing population of sub-Saharan Africa (SSA), effective strategies are needed to control weeds, the crop’s fiercest competitors for resources. To gain better insights into farmers’ access to, and use of, herbicides as part o...


Rodenburg, J.Johnson, J.M.Dieng, I.Senthilkumar, K.Vandamme, E.Akakpo, C.Allarangaye, M.D.Baggie, I.Bakare, S.O.Bam, R.K.Bassoro, I.Abera, B.B.Cisse, M.Dogbe, W.Gbakatchetche, H.Jaiteh, F.Kajiru, G.J.Kalisa, A.Kamissoko, N.Sekou, K.Kokou, A.Mapiemfu-Lamare, D.Lunze, F.M.Mghase, J.Maiga, I.M.Nanfumba, D.Niang, A.Rabeson, R.Segda, Z.Sillo, F.S.Tanaka, A.Saito, K.[Status quo of chemical weed control in rice in sub-Saharan Africa]Status quo of chemical weed control in rice in sub-Saharan Africa

We developed an interactive electronic weed identification tool, AFROweeds, and an online network, Weedsbook, for agricultural change agents to aid communication and offer assistance to rice farmers with specific weed problems. We collected quantitative and qualitative data to assess effectivenes...


Rodenburg, J.Le Bourgeois, T.Grard, P.Carara, A.Irakiza, R.Makokha, D.W.Kabanyoro, R.Dzomeku, I.Chiconela, T.Malombe, I.Sarra, S.Ekeleme, F.Mariko, M.Andrianaivo, A.P.Marnotte, P.[Electronic support tools for identification and management of rice weeds in Africa for better-informed agricultural change agents]Electronic support tools for identification and management of rice weeds in Africa for better-informed agricultural change agents

Rodenburg, J.Schut, MarcDemont, M.Klerkx, LaurensGbèhounou, G.Oude Lansink, Alfons G.Mourits, M.Rotteveel, T.Kayeke, J.Ast, A. vanAkanvou, L.Cissoko, M.Kamanda, J.Bastiaans, L.[Systems approaches to innovation in pest management: reflections and lessons learned from an integrated research program on parasitic weeds in rice]Systems approaches to innovation in pest management: reflections and lessons learned from an integrated research program on parasitic weeds in rice

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