Dangos 1 - 10 canlyniadau o 13 ar gyfer chwilio '', amser ymholiad: 0.01e Mireinio'r Canlyniadau
  1. 1

    Humic matter in soil and the environment principles and controversies gan Tan, Kim H. (Kim Howard) 1926-

    Cyhoeddwyd 2014
    Llyfr

    Humic matter in soil and the environment principles and controversies
  2. 2

    Sustainable management of soil organic matter

    Cyhoeddwyd 2001
    Llyfr

    Sustainable management of soil organic matter
  3. 3

    Nurturing the soil - feeding the people an introduction to sustainable organic agriculture gan Scheewe, Winfried

    Cyhoeddwyd 2000
    Llyfr

    Nurturing the soil - feeding the people an introduction to sustainable organic agriculture
  4. 4

    Humus chemistry genesis, composition, reactions. gan Stevenson, F.J

    Cyhoeddwyd 1994
    Llyfr

    Humus chemistry genesis, composition, reactions.
  5. 5

    Nurturing the soil - feeding the people an introduction to sustainable organic agriculture gan Scheewe, Winfried

    Cyhoeddwyd 1993
    Llyfr

    Nurturing the soil - feeding the people an introduction to sustainable organic agriculture
  6. 6

    Humus chemistry genesis, composition, reactions gan Stevenson, F. J.

    Cyhoeddwyd 1982
    Llyfr

    Humus chemistry genesis, composition, reactions
  7. 7

    Humic substances, their structure and function in the biosphere proceedings of an international meeting held at Nieuwersluis, the Netherlands, May 29-31, 1972

    Cyhoeddwyd 1975
    Llyfr

    Humic substances, their structure and function in the biosphere proceedings of an international meeting held at Nieuwersluis, the Netherlands, May 29-31, 1972
  8. 8

    Soil organic matter and its role in crop production gan Allison, Franklin Elmer 1892-1972

    Cyhoeddwyd 1973
    Llyfr

    Soil organic matter and its role in crop production
  9. 9

    Humic substances in the environment gan Schnitzer, M.

    Cyhoeddwyd 1972
    Llyfr

    Humic substances in the environment
  10. 10

    Soil organic matter; its nature, its role in soil formation and in soil fertility gan Kononova, M M

    Cyhoeddwyd 1966
    Llyfr

    Soil organic matter; its nature, its role in soil formation and in soil fertility

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