@article{Fofana_2007,
title={Millet nutrient use efficiency as affected by natural soil fertility,
mineral fertilizer use and rainfall in the West African Sahel},
volume={81},
ISSN={1573-0867},
url={http://dx.doi.org/10.1007/s10705-007-9146-y},
DOI={10.1007/s10705-007-9146-y},
number={1},
journal={Nutrient Cycling in Agroecosystems},
publisher={Springer Science and Business Media LLC},
author={Fofana,
B. and Wopereis,
M. C. S. and Bationo,
A. and Breman,
H. and Mando,
A.},
year={2007},
month=oct,
pages={25–36} }