Résultats pour Auteur : "Shepherd, Keith"

The diversity of rural livelihoods and their influence on soil fertility in agricultural systems of East Africa - A typology of smallholder farms. Tittonell Pablo, Muriuki A., Shepherd Keith, Mugendi D.N., Kaizzi C.K., Okeyo Jeremiah M., Verchot Louis, Coe Ric, Vanlauwe Bernard. 2010. Agricultural Systems, 103 (2) : 83-97.

Integrated soil fertility management in Africa : principles, practices and developmental process. Sanginga Nteranya (ed.), Woomer Paul L. (ed.), Bationo André (collab.), Chianu Jonas (collab.), Giller Ken E. (collab.), Idupulapati Rao (collab.), Lesueur Didier (collab.), Merckx Roel (collab.), Mokwunye Uzo (collab.), Ohiokpehai Omo (collab.), Place Frank (collab.), Pypers Pieter (collab.), Ramadjita Tabo (collab.), Sanginga Pascal C. (collab.), Savala Canon N. (collab.), Shepherd Keith (collab.), Smaling Eric (collab.), Vanlauwe Bernard (collab.), Wambui Dorothy (collab.). 2009. Nairobi : CIAT [Kenya], 267 p. ISBN 978-92-9059-261-7

Unravelling the effects of soil and crop management on maize productivity in smallholder agricultural systems of western Kenya. An application of classification and regression tree analysis. Tittonell Pablo, Shepherd Keith, Vanlauwe Bernard, Giller Ken E.. 2008. Agriculture, Ecosystems and Environment, 123 (1-3) : 137-150.

Développement des embryons zygotiques chez Musa. Culture in vitro d'embryons zygotiques. Sacs embryonnaires et fertilisation chez les cultivars triploïdes de bananier. Shepherd Keith, Bakry Frédéric. 1986. Montpellier : CIRAD-IRFA, 4 p.