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  1. By: Pieters, A. J. (Adrian John),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, [1938]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: AgSpace  conservation plants  Crops and soils  Grasses  Internet resource  Soil conservation  Soil degradation  Soil management  soil organic matter  soil quality  soil resource management  
  1. By: Pillar, VD - Tornquist, Carlos Gustavo - Bayer, Cimélio.
    Type: Article
    In: Instituto Internacional de Ecologia
    Date: 2012-08-01
    Publication Info: Instituto Internacional de Ecologia
    Subjects: climate change  Global warming  Management  Pampa biome  soil organic matter