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  1. 1

    Advances in soil organic matter research: the impact on agriculture and the environment /

    Udgivet 1991
    Bog
  2. 2

    Agroforestry for soil conservation / af Young, Anthony

    Udgivet 1989
    Bog
  3. 3
  4. 4

    Bibliography of soil fertility and plant nutrition in Papua New Guinea / af Bourke, R. Michael

    Udgivet 1993
    Bog
  5. 5

    Bibliography of soil fertility and soil management in Pacific Island countries / af Lincoln, Alexander

    Udgivet 1995
    Bog
  6. 6

    The biological management of tropical soil fertility /

    Udgivet 1994
    Bog
  7. 7

    The challenge of landscape: the development and practiceof keyline/ af Yeomans, P.A

    Udgivet 1958
    Bog
  8. 8
  9. 9

    Computations for studies of soil fertility and fertilizer requirements af Colwell, J. D.

    Udgivet 1978
    Bog
  10. 10

    The control of soil fertility / af Cooke, G. W. (George William), 1916-

    Udgivet 1967
    Bog
  11. 11

    Diagnostic criteria for plants and soils /

    Udgivet 1965
    Bog
  12. 12
  13. 13

    Experimental designs for predicting crop productivity with environmental and economic inputs for agrotechnology transfer /

    Udgivet 1981
    Conference Proceeding Bog
  14. 14

    FAO soils bulletin.

    Udgivet 1966
    Bog
  15. 15

    The fertility of paddy soils in Taiwan / af Lin, Char-fen

    Udgivet 1978
    Bog
  16. 16

    Fertility of soils : a future for farming in the West African savannah / af Pieri, Christian J. M. G.

    Udgivet 1992
    Bog
  17. 17

    Fertilizers for the farm and garden / af Teakle, L. J. H.

    Udgivet 1958
    Bog
  18. 18

    The impact of parent material on soil fertility degradation in the coastal plain of Tanzania / af Hartemink, Alfred E.

    Udgivet 1995
    Bog
  19. 19

    The keyline plan/ af Yeomans, P.A

    Udgivet 1954
    Bog
  20. 20

    Land for tomorrow : subsistence agriculture, soil fertility and ecosystem stability in the New Guinea highlands / af Wood, Andrew Wardman

    Udgivet 1984
    Thesis Bog