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International Center for Tropical Agriculture ,  [Use Vernonia spp. for increased production] ,  Use Vernonia spp. for increased production

Bationo, B. André ,  [Managing nutrient cycles to sustain soil fertility in sub-Saharan Africa] ,  Managing nutrient cycles to sustain soil fertility in sub-Saharan Africa

Wortmann, Charles S. ,  Kaizzi, CK ,  Fischler, MA ,  [Farmers` independent experimentation with green manure and/or cover crops: a component of participatory research for improving Ugandan farming systems] ,  Farmers` independent experimentation with green manure and/or cover crops: a component of participatory research for improving Ugandan farming systems

Howeler, Reinhardt H. ,  [Cassava agronomy research in Asia, 1987-1992] ,  Cassava agronomy research in Asia, 1987-1992

Wortmann, Charles S. ,  Kaizzi, CK ,  [Tree legumes in medium-term fallows: Nitrogen, fixation, nitrate recovery and effects on subsequent crops] ,  Tree legumes in medium-term fallows: Nitrogen, fixation, nitrate recovery and effects on subsequent crops

Muhr, L ,  Tarawali, Shirley A. ,  Peters, Michael ,  Schultze-Kraft, Rainer ,  [Forage legumes for improved fallows in agropastoral systems of subhumid West Africa. II. Green manure production and decomposition after incorporation into the soil] ,  Forage legumes for improved fallows in agropastoral systems of subhumid West Africa. II. Green manure production and decomposition after incorporation into the soil

Tscherning, K ,  Lascano, Carlos E. ,  Barrios, E. ,  Schultze-Kraft, Rainer ,  Peters, Michael ,  [The effect of mixing prunings of two tropical shrub legumes (Calliandra houstoniana and Indigofera zollingeriana) with contrasting quality on N release in the soil and apparent N degradation in the rumen] ,  The effect of mixing prunings of two tropical shrub legumes (Calliandra houstoniana and Indigofera zollingeriana) with contrasting quality on N release in the soil and apparent N degradation in the rumen

Vanlauwe, Bernard ,  Aihou, K. ,  Aman, S ,  Iwuafor, E.N.O. ,  Tossah, B.K. ,  Diels, J. ,  Sanginga, Nteranya ,  Lyasse, O. ,  Merckx, R. ,  Deckers, J. ,  [Maize yield as affected by organic inputs and urea in the West African moist savanna] ,  Maize yield as affected by organic inputs and urea in the West African moist savanna