@inbook{1b91de1cce9045868ffc55aa4ac28b3e,
title = "Management of Nitrogen Fertilizer in Maize-based Systems in Subhumid Areas of Sub-Saharan Africa",
author = "B. Vanlauwe and N. Sanginga and K.E. Giller and R. Merckx",
year = "2004",
language = "English",
isbn = "9781559637084",
series = "Scope 65",
pages = "115--127",
editor = "A.R. Mosier and J.K. Syers and J.R. Freney",
booktitle = "Agriculture and the Nitrogen cycle: Assessing the impacts of Fertilizer Use on Food Production and the Environment",
}