@ARTICLE {JAGTAP:1999a,
title = {Nutrient recovery and productivity of a soybean-maize rotation in the derived savanna ecology of West Africa},
author = {Jagtap, S. and Adeleye, O. },
journal = {Journal of Sustainable Agriculture},
year = {1999},
volume = {15},
number = {1},
pages = {75--86},
issn = {1044-0046},
}