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C. Steiner, Teixeira, W. G., Lehmann, J., Nehls, T., de Mac, J. L. V., Blum, W. E. H., and Zech, W.,
“Long term Effects of manure, charcoal and mineral fertilization on crop production and fertility on a highly weathered Central Amazonian upland soil”,
Plant Soil, 2007.
C. Steiner, Teixeira, W. G., Lehmann, J., Nehls, T., de Mac, J. L. V., Blum, W. E. H., and Zech, W.,
“Long term Effects of manure, charcoal and mineral fertilization on crop production and fertility on a highly weathered Central Amazonian upland soil”,
Plant Soil, 2007.