Published 2013
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Combining permanent beds and residue retention with nitrogen fertilization improves crop yields and water productivity in irrigated arid lands under cotton, wheat and maize

  • 1. Center for Development Research (ZEF), Walter Flex-Str. 3, 53113 Bonn, Germany
  • 2. International Maize and Wheat Improvement Center
  • 3. ZEF/UNESCO, Khorezm Project, Urgench, Uzbekistan
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