East Africa's smallholder agriculture is expected to be strongly affected by climate change, which, together with a growing population and pressure on natural resources, will result in an increasing challenge to achieve food security for households and regions. Policy makers need information on w...
Wichern, Jannike
,
Wijk, Mark T. van
,
Descheemaeker, Katrien
,
Heerwaarden, Joost van
,
Frelat, Romain
,
Giller, Ken E.
,
[What works where and for whom? Farm Household Strategies for Food Security across Uganda]
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What works where and for whom? Farm Household Strategies for Food Security across Uganda
Heerwaarden, Joost van
,
Ortega Del Vecchyo, D.
,
Álvarez Buylla, E.R.
,
Bellon, M.
,
[New genes in traditional seed systems: diffusion, detectability and persistence of transgenes in a maize metapopulation.]
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New genes in traditional seed systems: diffusion, detectability and persistence of transgenes in a maize metapopulation.
Soybean yields could benefit from the use of improved varieties, phosphate-fertilizer and rhizobium inoculants. In this study, we evaluated the results of widespread testing of promiscuous soybean varieties with four treatments: no inputs (control); SSP fertilizer (P); inoculants (I) and SSP plus...
Ronner, E.
,
Franke, A.C.
,
Vanlauwe, Bernard
,
Dianda, M.
,
Edeh, E.
,
Ukem, B.
,
Bala, A.
,
Heerwaarden, Joost van
,
Giller, Ken E.
,
[Understanding variability in soybean yield and response to P-fertilizer and rhizobium inoculants on farmers' fields in northern Nigeria]
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Understanding variability in soybean yield and response to P-fertilizer and rhizobium inoculants on farmers' fields in northern Nigeria
Improving bacterial nitrogen fixation in grain legumes is central to sustainable intensification of agriculture in sub-Saharan Africa. In the case of soyabean, two main approaches have been pursued: first, promiscuous varieties were developed to form effective symbiosis with locally abundant nitr...
Heerwaarden, Joost van
,
Baijukya, Frederick P.
,
Kyei-Boahen, S.
,
Adjei-Nsiah, Samuel
,
Ebanyat, Peter
,
Kamai, N.
,
Woldemeskel, Endalkachew
,
Kanampiu, F.
,
Vanlauwe, Bernard
,
Giller, Ken E.
,
[Soyabean response to rhizobium inoculation across sub-Saharan Africa: Patterns of variation and the role of promiscuity]
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Soyabean response to rhizobium inoculation across sub-Saharan Africa: Patterns of variation and the role of promiscuity
Nutrient limitation is a major constraint in crop production in sub-Saharan Africa (SSA). Here, we propose a generic and simple equilibrium model to estimate minimum input requirements of nitrogen, phosphorus and potassium for target yields in cereal crops under highly efficient management. The m...
Berge, Hein F.M. ten
,
Hijbeek, Renske
,
Loon, Marloes P. van
,
Rurinda, Jairos
,
Tesfaye, Kinde
,
Zingore, Shamie
,
Craufurd, Peter Q.
,
Heerwaarden, Joost van
,
Brentrup, Frank
,
Schröder, Jaap J.
,
Boogaard, Hendrik L.
,
Groot, Hugo L.E. de
,
Ittersum, Martin K. van
,
[Maize crop nutrient input requirements for food security in sub-Saharan Africa]
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Maize crop nutrient input requirements for food security in sub-Saharan Africa