Efficient use of fertilizers.

By: Material type: TextTextSeries: FAO agricultural studies ; no. 9.Publication details: Washington, Food and Agriculture Organization of the United Nations, 1949.Description: x, 182 p. illus., maps. 23 cmSubject(s): DDC classification:
  • 631.816
LOC classification:
  • S633 .I3
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"For further reading" at end of most of the chapters.

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