Lessons for Managing Soil Fertility from Long-Term Trials at the International Center for Tropical Agriculture (CIAT) in Western Kenya.
Rolf Sommer1, Job Kihara1, John Mukalama1, Birthe Paul2 and Saidou Koala1, (1)Soils Program, International Center for Tropical Agriculture, CIAT, Nairobi, Kenya, (2)Forages Program, International Center for Tropical Agriculture, CIAT, Nairobi, Kenya