នេះ Book មិន​មាន​ក្នុង​ភាសា​របស់​អ្នក, មើល​ក្នុង: English (en),
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This book may no longer be available in print.

The techniques described in this booklet represent a first step toward low-technology environmental analysis. Six tests are described - soil pH, soil texture, percolation, dissolved minerals, sodium in water, and coliform bacteria.

31 pages, tables

Publication Details

  • Publisher: Codel Environment and Development Program, and Office of Private and Voluntary Cooperation, U.S. AID
  • Dewey Decimal: 631.4
  • ECHO Library: 631.4 COD

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