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Kretzschmar, R M and Hafner, H and Bationo, A and Marschner, H (1991) Long- and short-term effects of crop residues on aluminum toxicity, phosphorus availability and growth of pearl millet in an acid sandy soil. Plant and Soil, 136 (02). pp. 215-223. ISSN 0032-079X
Rebafka, F P and Ndunguru, B J and Marschner, H (1993) Crop residue application increases nitrogen fixation and dry matter production in groundnut (Arachis hypogaea L.) grown on an acid sandy soil in Niger, West Africa. Plant and Soil, 150 (2). pp. 213-222. ISSN 1573-5036
Rebafka, F P and Bationo, A and Marschner, H (1993) Phosphorus seed coating increases phosphorus uptake, early growth and yield of pearl millet (Pennisetum glaucum (L.) R. Br.) grown on an acid sandy soil in Niger, West Africa. Fertilizer Research, 35 (3). pp. 151-160.
Rebafka, F P and Hebel, A and Bationo, A and Stahr, K and Marschner, H (1994) Short- and long-term effects of crop residues and of phosphorus fertilization on pearl millet yield on an acid sandy soil in Niger, West Africa. Field Crops Research, 36 (2). pp. 113-124. ISSN 0378-4290
Buerkert, A and Lawrence, P R and Williams, J H and Marschner, H (1995) Non-destructive measurements of biomass in millet, cowpea, groundnut, weeds and grass swards using reflectance, and their application for growth analysis. Experimental Agriculture, 31 (1). pp. 1-11. ISSN 0014-4797
Buerkert, A and Stern, R D and Marschner, H (1995) Post Stratification Clarifies Treatment Effects on Pearl Millet Growth in the Sahel. Agronomy Journal , 87 (4). pp. 752-761. ISSN 0002-1962