Hat mitgewirkt an:
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Water and fertilizer use for food production in arid and semiarid zones : 1979, November 26th - December 1st, Garyounis University - Benghazi, Libya ; proceedings
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Nitrogen dynamics model : verification and practical application
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Düngung und Umwelt
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Agrostemin : new source of natural allelopath. chemicals for better plant growth and plant productivity regulation ; a compilation of reports on its use and efficiency