នេះ Collection មិន​មាន​ក្នុង​ភាសា​របស់​អ្នក, មើល​ក្នុង: English (en),
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  1. ធនធានសំខាន់ 11 មករា 1974 In the tropical and subtropical areas of the world, food grains make up the bulk of the diet for most people. Food grains together with fiber and specialty crops are also principal cash producers. It is with these commodities that this Guide for Field Crops in the Tropics and Subtropics concerns...
  2. ធនធានសំខាន់ 19 មករា 1980 The first part of the book, which assumes an elementary knowledge of agriculture, biology, and allied sciences, covers in detail the methods best suited to the cultivation of crops in the wet tropics. It advocates the use of intensive systems of agriculture which are less destructive to the...
  3. ធនធានសំខាន់ 19 មករា 1972 Tropical Crops: Monocotyledons presents the basic information on the botany and agronomy of tropical monotyledonous crops, which are either used locally or are partly or wholly exported. The space given to each crop is dependent upon its importance and the amount of work which has been devoted to...
  4. ធនធានសំខាន់ 19 មករា 2068 Tropical Crops: Dicotyledons presents the basic information on the botany and agronomy of tropical dicotyledonous crops, which are either used locally or are partly or wholly exported. The space given to each crop is dependent upon its importance and the amount of work which has been devoted to...

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