ធនធាន ដាក់​​​ស្លាក: Minerals

2 items found (Showing 1 - 2)

  1. Plant Adaptation to Mineral Stress in Problem Soils: Proceedings of a workshop, National Agricultural Library, Beltsville, MD

    22 វិច្ឆិកា 1976 This book contains articles written under two main categories - overview of soil mineral stress-worldwide and genetic potentials for solving problems of soil mineral stress. 420 pages, illustrated
    Soil science Minerals

  2. Sea Energy Agriculture: Perfect Natural Nutrition

    01 មករា 1976 Maynard Murray was a medical doctor who researched the crucial importance of minerals - especially trace elements - to plants and animals. Beginning in 1938 and continuing through the 1950s, Dr. Murray used sea solids - mineral salts remaining after water is evaporated from ocean water - as...
    Sea Salt Minerals Sea energy