Résultats pour Auteur : "Van Asten, Piet J.A."

Disentangling effects of altitude and shade cover on coffee fruit dynamics and vegetative growth in smallholder coffee systems. Sarmiento-Soler Alejandra, Rötter Reimund P., Hoffmann Munir P., Jassogne Laurence, Van Asten Piet J.A., Graefe Sophie, Vaast Philippe. 2022. Agriculture, Ecosystems and Environment, 326:107786, 16 p.

Effect of cropping system, shade cover and altitudinal gradient on coffee yield components at Mt. Elgon, Uganda. Sarmiento-Soler Alejandra, Vaast Philippe, Hoffmann Munir P., Jassogne Laurence, Van Asten Piet J.A., Graefe Sophie, Rötter Reimund P.. 2020. Agriculture, Ecosystems and Environment, 295:106887, 12 p.

Variations in yield gaps of smallholder cocoa systems and the main determining factors along a climate gradient in Ghana. Abdulai Issaka, Hoffmann Munir P., Jassogne Laurence, Asare Richard, Graefe Sophie, Tao Hsiao-Hang, Muilerman Sander, Vaast Philippe, Van Asten Piet J.A., Läderach Peter, Rötter Reimund P.. 2020. Agricultural Systems, 181:102812, 8 p.

Banana leaf pruning to facilitate annual legume intercropping as an intensification strategy in the East African highlands. Ocimati Walter, Ntamwira Jules, Groot Jeroen C. J., Taulya Godfrey, Tittonell Pablo, Dhed'a B., Van Asten Piet J.A., Vanlauwe Bernard, Ruhigwa B., Blomme Guy. 2019. European Journal of Agronomy, 110:125923, 12 p.

Interactive effects of altitude, microclimate and shading system on coffee leaf rust. Liebig Theresa, Ribeyre Fabienne, Läderach Peter, Poehling Hans-Michael, Van Asten Piet J.A., Avelino Jacques. 2019. Journal of Plant Interactions, 14 (1) : 407-415.

Water use of Coffea arabica in open versus shaded systems under smallholder's farm conditions in Eastern Uganda. Sarmiento-Soler Alejandra, Vaast Philippe, Hoffmann Munir P., Rötter Reimund P., Jassogne Laurence, Van Asten Piet J.A., Graefe Sophie. 2019. Agricultural and Forest Meteorology, 266-267 : 231-242.

Characterization of cocoa production, income diversification and shade tree management along a climate gradient in Ghana. Abdulai Issaka, Jassogne Laurence, Graefe Sophie, Asare Richard, Van Asten Piet J.A., Läderach Peter, Vaast Philippe. 2018. PloS One, 13 (4):e0195777, 17 p.

Cocoa agroforestry is less resilient to sub-optimal and extreme climate than cocoa in full sun. Abdulai Issaka, Vaast Philippe, Hoffmann Munir P., Asare Richard, Jassogne Laurence, Van Asten Piet J.A., Rötter Reimund P., Graefe Sophie. 2018. Global Change Biology, 24 (1) : 273-286.

Cocoa agroforestry is less resilient to suboptimal and extreme climate than cocoa in full sun: Reply to Norgrove (2017). Abdulai Issaka, Vaast Philippe, Hoffmann Munir P., Asare Richard, Jassogne Laurence, Van Asten Piet J.A., Rötter Reimund P., Graefe Sophie. 2018. Global Change Biology, 24 (5) : e733-e740.

Exploring adaptation strategies of coffee production to climate change using a process-based model. Rahn Eric, Vaast Philippe, Läderach Peter, Van Asten Piet J.A., Jassogne Laurence, Ghazoul Jaboury. 2018. Ecological Modelling, 371 : 76-89.

Local and regional drivers of the African coffee white stem borer (Monochamus leuconotus) in Uganda. Liebig Theresa, Babin Régis, Ribeyre Fabienne, Läderach Peter, Van Asten Piet J.A., Poehling Hans-Michael, Jassogne Laurence, Cilas Christian, Avelino Jacques. 2018. Agricultural and Forest Entomology, 20 (4) : 514-522.

Opportunities for sustainable intensification of coffee agro-ecosystems along an altitudinal gradient on Mt. Elgon, Uganda. Rahn Eric, Liebig Theresa, Ghazoul Jaboury, Van Asten Piet J.A., Läderach Peter, Vaast Philippe, Sarmiento Alejandra, Garcia Claude, Jassogne Laurence. 2018. Agriculture, Ecosystems and Environment, 263 : 31-40.

Towards a collaborative research: A case study on linking science to farmers' perceptions and knowledge on Arabica coffee pests and diseases and its management. Liebig Theresa, Jassogne Laurence, Rahn Eric, Läderach Peter, Poehling Hans-Michael, Kucel Patrick, Van Asten Piet J.A., Avelino Jacques. 2016. PloS One, 11 (8):e0159392, 23 p.

Mineral fertilizer response and nutrient use efficiencies of East African highland banana (Musa spp., AAA-EAHB, cv. Kisansa). Nyombi Kenneth, Van Asten Piet J.A., Corbeels Marc, Taulya Godfrey, Leffelaar Peter A., Giller Ken E.. 2010. Field Crops Research, 117 (1) : 38-50.

Allometric growth relationships of East Africa highland bananas (Musa AAA-EAHB) cv. Kisansa and Mbwazirume. Nyombi Kenneth, Van Asten Piet J.A., Leffelaar Peter A., Corbeels Marc, Kaizzi C.K., Giller Ken E.. 2009. Annals of Applied Biology, 155 (3) : 403-418.

Closing the cassava yield gap: An analysis from smallholder farms in East Africa. Fermont Anneke M., Van Asten Piet J.A., Tittonell Pablo, Van Wijk Mark T., Giller Ken E.. 2009. Field Crops Research, 112 (1) : 24-36.

Simulating the evolution of soil solutions in irrigated rice soils in the Sahel. Hammecker Claude, Van Asten Piet J.A., Marlet Serge, Maeght Jean-Luc, Poss Roland. 2009. Geoderma, 150 (1-2) : 129-140.

Coffea Arabica water use in open versus shaded systems under smallholder's farm conditions in Eastern Uganda. Sarmiento-Soler Alejandra, Vaast Philippe, Hoffmann Munir P., Rötter Reimund P., Jassogne Laurence, Van Asten Piet J.A., Graefe Sophie. 2019. In : 27th Biennial ASIC Conference, Portland, 16-20 September 2018. Book of abstracts 2019. ASIC, SCA. Portland : ASIC, Résumé, 1 p. Biennial ASIC Conference. 27, Portland, États-Unis, 16 Septembre 2018/20 Septembre 2018.

Climate-smart coffee systems in East Africa. Jassogne Laurence, Van Asten Piet J.A., Läderach Peter, Craparo S., Liebig Theresa, Rahn Eric, Baca Maria, Graefe Sophie, Whitbread Anthony M., Nibasumba Anaclet, Ampaire Edidah, Kagezi Godfrey, Vaast Philippe. 2015. In : Building tomorrow’s research agenda and bridging the science-policy gap. CIRAD, INRA, IRD, Agropolis International, Wageningen UR, CGIAR, UCDAVIS, FAO, Agreenium, GFAR. Montpellier : CIRAD, Résumé, 73. Climate-Smart Agriculture 2015 : Global Science Conference. 3, Montpellier, France, 16 Mars 2015/18 Mars 2015.

Climate-smart intensification of West-Africa's cocoa systems. [P14]. Van Asten Piet J.A., Jassogne Laurence, Vaast Philippe, Läderach Peter, Schroth Götz, Lundy Mark, Asare Richard, Muilerman Sander, Ruf François, Snoeck Didier, Koko L.K., Anim-Kwapong Gilbert, Rossing Walter A.H., Gockwoski James, Giller Ken E., Six Johan, Vanlauwe Bernard. 2015. In : Building tomorrow’s research agenda and bridging the science-policy gap. CIRAD, INRA, IRD, Agropolis International, Wageningen UR, CGIAR, UC Davis, FAO, Agreenium, GFAR. Montpellier : CIRAD, Résumé, 95. Climate Smart Agriculture 2015 : Global Science Conference. 3, Montpellier, France, 16 Mars 2015/18 Mars 2015.

A review of the status and progress in management research of the black coffee twig borer, Xylosandrus compactus (Eichhoff) in Uganda. Kagezi Godfrey, Kucel Patrick, Egonyu J.P., Kyamanywa S., Karungi J.T., Pinard Fabrice, Jaramillo J., Van Asten Piet J.A., Wagoire W.W., Ngabirano H.. 2015. In : Proceedings of the 25th International Conference on Coffee Science. ASIC. Paris : ASIC, 42-52. ISBN 978-2-900212-24-0 International Conference on Coffee Science. 25, Armenia, Colombie, 8 Septembre 2014/13 Septembre 2014.

Characterisation of microclimatic indicators in coffee production systems under varying biophysical contexts and its relation to fungal coffee diseases. Liebig Theresa, Ribeyre Fabienne, Laederach Peter, Jassogne Laurence, Poehling Hans-Michael, Van Asten Piet J.A., Avelino Jacques. 2016. . Kunming : s.n., 2 p. International Conference on Coffee Science (ASIC 2016). 26, Kunming, Chine, 13 Novembre 2016/19 Novembre 2016.