TY - BOOK ED - Joint FAO/IAEA division of nuclear techniques in food and agriculture TI - Isotope studies on plant productivity SN - 1011-4289 PY - 1996/// CY - Vienna PB - IAEA N1 - Results of a Co-ordinated research programme organized by the Soil fertility, irrigation and crop production section, Joint FAO/IAEA division of nuclear techniques in food and agriculture; Bibliografía al final de cada trabajo ER -