Articles | Volume 6, issue 3
https://doi.org/10.5194/se-6-1063-2015
https://doi.org/10.5194/se-6-1063-2015
Research article
 | 
17 Sep 2015
Research article |  | 17 Sep 2015

Precision of farmer-based fertility ratings and soil organic carbon for crop production on a Ferralsol

P. Musinguzi, P. Ebanyat, J. S. Tenywa, T. A. Basamba, M. M. Tenywa, and D. Mubiru

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Short summary
This study showed that resource-poor smallholder farmers can ably rate fields for soil fertility as poor or good but had difficulties in identifying medium-fertility fields. Rating with SOC improved precision to rate medium-fertility fields. SOC and clay content explained the highest yield variances in heterogeneous smallholder farms. A combination of SOC and farmers' field experiences can be affordable approaches to guide fertility management and fertilizer application.