Improving farmers? livelihoods through conservation agriculture: options for change promotion in Laikipia, Kenya - Ndah, H.T.; Probst, L.; Kaweesa, S.; Kuria, P.; Mkomwa, S.; Rodrigues, P.; Basch, G.; Uckert, G.; Sieber, S.; Knierim, A.; Zander, P.; Schuler, J. (2020)