Search Results - "Kuyper, T.W"

Host-parasite dynamics of Sorghum bicolor and Striga hermonthica – The influence of soil organic matter amendments of different C:N ratio by Ayongwa, G.C., Stomph, T.J., Kuyper, T.W.

“…The effect of organic amendments on the interactions between Striga hermonthica and a sorghum host was studied in a field experiment during three cropping…”
Get full text

Organic matter and seed survival of Striga hermonthica – Mechanisms for seed depletion in the soil by Ayongwa, G.C., Stomph, T.J., Belder, P., Leffelaar, P.A., Kuyper, T.W.

“…Seed survival of Striga hermonthica is influenced by amendments of organic matter; however, the role of organic matter quality (C:N ratio) and mechanisms for…”
Get full text

Evaluating sustainable and profitable cropping sequences with cassava and four legume crops: Effects on soil fertility and maize yields in the forest/savannah transitional agro-ecological zone of Ghana by Adjei-Nsiah, S., Kuyper, T.W., Leeuwis, C., Abekoe, M.K., Giller, K.E.

“…Rotations are important practices for managing soil fertility on smallholder farms. Six cropping sequences (cassava, pigeonpea, mucuna–maize–mucuna,…”
Get full text

Diagnosing the scope for innovation: Linking smallholder practices and institutional context: Introduction to the special issue by Röling, N, Hounkonnou, D, Kossou, D, Kuyper, T.W, Nederlof, S, Sakyi-Dawson, O, Traoré, M, van Huis, A

“…The article introduces the diagnostic studies reported in this special issue and prepares the reader for understanding their full portent, not only as…”
Get full text

Fine roots and ectomycorrhizas as indicators of environmental change by Cudlin, P., Kieliszewska-Rokicka, B., Rudawska, M., Grebenc, T., Alberton, O., Lehto, T., Bakker, M. R., Børja, I., Konôpka, B., Leski, T., Kraigher, H., Kuyper, T. W.

“…Human-induced and natural stress factors can affect fine roots and ectomycorrhizas. Therefore they have potential utility as indicators of environmental…”
Get full text

The political ecology of land management in the oil palm based cropping system on the Adja plateau in Benin by Yemadje, R.H., Crane, T.A., Vissoh, P.V., Mongbo, R.L., Richards, P., Kossou, D.K., Kuyper, T.W.

“…The Adja plateau (Benin) is densely populated by tenant and landowner farmers engaged in oil palm based cropping. Landowners use oil palm sap for the…”
Get full text

Innovation processes navigated by women groups in the Malian shea sector: How targeting of international niche markets results in fragmentation and obstructs co-ordination by Sidibé, A., Vellema, S., Dembelé, F., Traoré, M., Kuyper, T.W.

“…The incorporation of women and their associations into international markets and value chains is proposed increasingly as a development pathway in Sub-Saharan…”
Get full text

Striga infestation in northern Cameroon: Magnitude, dynamics and implications for management by Ayongwa, G.C., Stomph, T.J., Hoevers, R., Ngoumou, T.N., Kuyper, T.W.

“…Surveys of Striga ( S. hermonthica (Del.) Benth.) infestation in northern Cameroon over the period 1987–2005 assessed Striga dynamics and evaluated its control…”
Get full text

Root nitrogen concentration of sorghum above 2% produces least Striga hermonthica seed stimulation by Ayongwa, G.C, Stomph, T.J, Emechebe, A.M, Kuyper, T.W

“…A series of pot and laboratory experiments was carried out to assess the effects of N status of sorghum roots and timing of N application (as NH₄NO₃) on the…”
Get full text

Effects of arbuscular mycorrhizal fungi on damage by Striga hermonthica on two contrasting cultivars of sorghum, Sorghum bicolor by LENDZEMO, V. W, KUYPER, T. W

“…The root hemi-parasitic Striga hermonthica is a serious weed in cereal crops of the semi-arid tropics. Interactions between Striga and arbuscular mycorrhizal…”
Get full text

Land tenure and differential soil fertility management practices among native and migrant farmers in Wenchi, Ghana: implications for interdisciplinary action research by Adjei-Nsiah, S., Leeuwis, C., Giller, K.E., Sakyi-Dawson, O., Cobbina, J., Kuyper, T.W., Abekoe, M., Van Der Werf, W.

“…In the past, farmers in the forest-savannah transitional agro-ecological zone of Ghana relied on the bush fallow system for maintaining the productivity of…”
Get full text

Towards a multidimensional root trait framework: a tree root review by Weemstra, Monique, Mommer, Liesje, Visser, Eric J. W., Ruijven, Jasper, Kuyper, Thomas W., Mohren, Godefridus M. J., Sterck, Frank J.

“…The search for a root economics spectrum (RES) has been sparked by recent interest in trait-based plant ecology. By analogy with the one-dimensional leaf…”
Get full text

A thready affair: linking fungal diversity and community dynamics to terrestrial decomposition processes by van der Wal, Annemieke, Geydan, Thomas D., Kuyper, Thomas W., de Boer, Wietse

“…Abstract Filamentous fungi are critical to the decomposition of terrestrial organic matter and, consequently, in the global carbon cycle. In particular, their…”
Get full text

Convergence of sciences: the management of agricultural research for small-scale farmers in Benin and Ghana by Hounkonnou, D., Kossou, D.K., Kuyper, T.W., Leeuwis, C., Richards, P., Röling, N.G., Sakyi-Dawson, O., Van Huis, A.

“…The Convergence of Sciences programme (CoS) addresses the sub-optimal impact of science on the livelihoods of resource-poor farmers in West Africa,…”
Get full text

Plant species identity surpasses species richness as a key driver of N2O emissions from grassland by Abalos, Diego, De Deyn, Gerlinde B., Kuyper, Thomas W., van Groenigen, Jan Willem

“…Grassland ecosystems worldwide not only provide many important ecosystem services but they also function as a major source of the greenhouse gas nitrous oxide…”
Get full text

Mycorrhizas and tropical soil fertility by Cardoso, Irene M., Kuyper, Thomas W.

“…Major factors that constrain tropical soil fertility and sustainable agriculture are low nutrient capital, moisture stress, erosion, high P fixation, high…”
Get full text

Agricultural waste utilisation strategies and demand for urban waste compost: Evidence from smallholder farmers in Ethiopia by Nigussie, Abebe, Kuyper, Thomas W., Neergaard, Andreas de

“…•Competition in agricultural waste utilisation.•Farm characteristics influence agricultural waste allocation.•Urban waste compost demand is…”
Get full text

Are the rates of photosynthesis stimulated by the carbon sink strength of rhizobial and arbuscular mycorrhizal symbioses? by Kaschuk, Glaciela, Kuyper, Thomas W., Leffelaar, Peter A., Hungria, Mariangela, Giller, Ken E.

“…Rhizobial and arbuscular mycorrhizal (AM) symbioses each may consume 4–16% of recently photosynthetically-fixed carbon to maintain their growth, activity and…”
Get full text

Deconstructing and unpacking scientific controversies in intensification and sustainability: why the tensions in concepts and values? by Struik, PC, Kuyper, TW, Brussaard, L, Leeuwis, C

“…•Depending on conditions, definitions and values, intensification can enhance or threaten sustainability.•The societal debate on sustainability lacks…”
Get full text

An innovation systems approach to institutional change: Smallholder development in West Africa by Hounkonnou, Dominique, Kossou, Dansou, Kuyper, Thomas W., Leeuwis, Cees, Nederlof, E. Suzanne, Röling, Niels, Sakyi-Dawson, Owuraku, Traoré, Mamoudou, van Huis, Arnold

“…► Increasing the productivity of African smallholders is key to global food security. ► Institutions explain much variance in the quantity and quality of…”
Get full text