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1Article bibliotecaCIMMYT
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3High yielding corn response to applied phosphorus, potassium and sulfur in Nebraska High yielding corn response to applied phosphorus, potassium and sulfur in Nebraskaby Wortmann, C. S., Dobermann, A. R., Ferguson, R. B., Hergert, G. W., Shapiro, C. A., Tarkalson, D. D., Walters, D. T.Texto bibliotecaUBA FA
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4Farmers' 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 systemsby 82084 Kaizzi, C.K., 67779 Fischler, M., 132178 Wortmann, C.S., 69474 Fujisaka, S. ed., Centro Internacional de Agronomía Tropical (CIAT) Cali, Colombia 5173
Published 1999bibliotecaIICA