Last year we conducted our Masters theses for N2Africa in the Usambara Mountains in Tanzania. You might have seen some of the updates about our research on the N2Africa Facebook page. From October until February we did fieldwork in the Usambaras where we worked toghether with local farmers to study the nutrient deficiencies for the production of common bean. We performed factorial field trials with inoculation and phoshorus and potassium fertilizers as inputs. During the research we collected leaf and soil samples and interviewed farmers.