1) A study in Malawi evaluated the effects of fertilizer trees on soil fertility and maize yields, finding variable results. 2) Data was collected from 2011-2013 on plots with Faidherbia albida, Gliricidia sepium, Tephrosia vogelii, Cajanus cajan, and Sesbania sesban compared to sole crop plots. 3) On average, maize yields were higher with fertilizer trees than sole crops, but effects varied depending on the tree species, fertilizer use, elevation, and other local conditions.
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