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Agronomy of the N2-fixing fodder trees Sesbania sesban (L.) Merr. and Sesbania goetzii Harms in the Ethiopian highlands / Norbert Steinmüller.
- Grauer,
- 1995.
- Stuttgart :
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Effects of crop residues, phosphorus, and spatial soil variability on yield and nutrient uptake of pearl millet (Pennisetum glaucum L.) in Southwest Niger / Andreas Buerkert.
- Grauer,
- 1995.
- Stuttgart :