Résultats pour Auteur : "Pypers, Pieter"

Do commercial biological and chemical products increase crop yields and economic returns under smallholder farmer conditions? Jefwa Joyce Mnyazi, Pypers Pieter, Jemo M., Thuita Moses, Mutegi Edwin, Laditi M.A., Faye A., Kavoo A., Munyahali Wivine, Herrmann Laetitia, Atieno Mary, Okalebo John Robert, Yusuf Azeez, Ibrahim A., Ndung'u-Magiroi K.W., Asrat A., Muletta D., Ncho C., Kamaa Mary M., Lesueur Didier. 2014. In : Challenges and opportunities for agricultural intensification of the humid highland systems of Sub-Saharan Africa. Vanlauwe Bernard (ed.), VanAsten Piet (ed.), Blomme Guy (ed.). Cham : Springer International Publishing, 81-96. ISBN 978-3-319-07662-1

Commercial rhizobial inoculants significantly enhance growth and nitrogen fixation of a promiscuous soybean variety in Kenyan soils. Thuita Moses, Pypers Pieter, Herrmann Laetitia, Okalebo John Robert, Othieno Calebo O., Muema Esther, Lesueur Didier. 2012. Biology and Fertility of Soils, 48 (1) : 87-96.

Occurrence and genetic diversity of phosphate-solubilizing bacteria in soils of differing chemical characteristics in Kenya. Ndung'u-Magiroi Keziah Wairimu, Herrmann Laetitia, Okalebo John Robert, Othieno Calebo O., Pypers Pieter, Lesueur Didier. 2012. Annals of Microbiology, 62 (3) : 897-904.

Potential of indigenous bradyrhizobia versus commercial inoculants to improve cowpea (Vigna unguiculata L. walp.) and green gram (Vigna radiata L. wilczek.) yields in Kenya. Mathu Samuel, Herrmann Laetitia, Pypers Pieter, Matiru Viviene, Mwirichia Romano, Lesueur Didier. 2012. Soil Science and Plant Nutrition, 58 (6) : 760-763.

Competitiveness and persistence of commercial rhizobial soybean inoculants in central and western Kenya. Thuita Moses, Herrmann Laetitia, Pypers Pieter, Okalebo John Robert, Othieno Calebo O., Lesueur Didier. 2011. . Perth : s.n., Résumé, 1 p. Rhizosphere 3 International Conference, Perth, Australie, 25 Septembre 2011/1 Octobre 2011.

Evaluating commercial arbuscular mycorrhizal fungi (AMF) on soybean in Kenya. Faye Aliou, Ndung'u-Magiroi Keziah Wairimu, Pypers Pieter, Jewfa J., Herrmann Laetitia, Ndoye I., Diouf M., Lesueur Didier. 2011. . Perth : s.n., Résumé, 1 p. Rhizosphere 3 International Conference 2011, Perth, Australie, 25 Septembre 2011/1 Octobre 2011.

How commercial rhizobial inoculants can contribute to improved livelihoods of resource poor African farmers. Lesueur Didier, Herrmann Laetitia, Thuita Moses, Atieno Mary, Mutegi Edwin, Ndung'u Keziah, Faye Aliou, Kamaa Mary M., Pypers Pieter, Okalebo John Robert. 2011. . Perth : s.n., Résumé, 1 p. International Conference on Nitrogen Fixation. 17, Perth, Australie, 27 Novembre 2011/1 Décembre 2011.

Phosphate fertilizers and cereal/legume rotation improve crop yield and total microbial community diversity in soil of Western Kenya. Ndung'u-Magiroi Keziah Wairimu, Wasma Boaz, Bationo André, Pypers Pieter, Okalebo John Robert, Othieno Calebo O., Lesueur Didier. 2011. In : Soil Interfaces in a Changing World 6th ISMOM. INRA. Montpellier : INRA, Résumé, 220. Soil Interfaces in a Changing World - ISMOM 2011, Montpellier, France, 26 Juin 2011/1 Juillet 2011.

Potential of indigenous Bradyrhizobia versus commercial inoculants to improve cowpea and green gram yields in Kenya. Mathu Samuel, Pypers Pieter, Herrmann Laetitia, Matiru Viviene, Mwirichia Romano, Lesueur Didier. 2011. . Perth : s.n., Résumé, 1 p. International Conference on Nitrogen Fixation. 17, Perth, Australie, 27 Novembre 2011/1 Décembre 2011.

Synergistic effects of commercial biofertilizers with nitrogen fixing, arbuscular mycorrhiza fungi and phosphate solubilizing bacteria on soybean yield. Ndung'u-Magiroi Keziah Wairimu, Faye Aliou, Pypers Pieter, Herrmann Laetitia, Okalebo John Robert, Othieno Calebo O., Lesueur Didier. 2011. . Perth : s.n., Résumé, 1 p. Rhizosphere 3 International Conference 2011, Perth, Australie, 25 Septembre 2011/1 Octobre 2011.

Occurrence, distribution and genetic diversity of soil Phosphate Solubilizing Bacteria in soils of different chemical characteristics in Kenya. Ndung'u Keziah, Herrmann Laetitia, Okalebo John Robert, Othieno Calebo O., Pypers Pieter, Lesueur Didier. 2010. In : 4th International Symposium on Phosphorus Dynamics in the Soil-Plant Continuum (ISPDSPC), Beijing, China, September 19-23, 2010. s.l. : s.n., Résumé, 1 p. International Symposium on Phosphorus Dynamics in the Soil-Plant Continuum. 4, Pékin, Chine, 19 Septembre 2010/23 Septembre 2010.

An evaluation of alternative methods of P application for increased maize production under smallholder farmers' conditions in Kenya. Pypers Pieter, Munyahali Wivine, Mutegi Edwin, Musyoki Mary, Mburu Margaret, Okalebo John Robert, Mucheru-Muna Monicah Wanjiku, Lesueur Didier. 2010. In : 4th International Symposium on Phosphorus Dynamics in the Soil-Plant Continuum (ISPDSPC), Beijing, China, September 19-23, 2010. s.l. : s.n., Résumé, 1 p. International Symposium on Phosphorus Dynamics in the Soil-Plant Continuum. 4, Pékin, Chine, 19 Septembre 2010/23 Septembre 2010.

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