Relations between nitrogen fertilization and growth of some field crops [microform] : effect of nitrogen fertilization on growth and yield of some corn varieties grown under different plant populations / Sobhy Abd El-Raouf Mohamed Mandour.

By: Publication details: 1977.Description: 235, 7 leaves : ill. ; 30 cmSubject(s): Dissertation note: Thesis(M.S.)-- University of Alexandria, 1977.
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