Showing 1 - 20 results of 539 for search '', query time: 0.26s Refine Results
  1. 1
    The agricultural strategy of rural households in three ecological zones of the central Andes /
    by Werge, Robert W.
    Published 1979
    Book
  2. 2
    Ecological theory and integrated pest management practice /
    Published 1986
    Book
  3. 3
    Nitrogen cycling in ecosystems of Latin America and the Caribbean /
    Published 1982
    Book
  4. 4
    Papago fields : arid lands ethnobotany and agricultural ecology /
    by Nabhan, Gary Paul
    Published 1983
    Thesis Microform Book
  5. 5
    Effects of atmospheric pollutants on forests, wetlands, and agricultural ecosystems /
    Published 1987
    Conference Proceeding Book
  6. 6
    Towards holistic agriculture : a scientific approach /
    by Widdowson, R. W.
    Published 1987
    Book
  7. 7
    Report.
    Published 1973
    Serial
  8. 8
    Cultural practices and infectious crop diseases /
    by Palti, J.
    Published 1981
    Book
  9. 9
    Chemistry for agriculture and ecology : a foundation course /
    by Hay, Roy
    Published 1981
    Book
  10. 10
    Pests, pathogens, and vegetation : the role of weeds and wild plants in the ecology of crop pests and diseases : the outcome of a meeting arranged at the University of York 15-17 April 1980 /
    Published 1981
    Book
  11. 11
    Farming and wildlife /
    by Mellanby, Kenneth
    Published 1981
    Book
  12. 12
    Farming : sources for a social & ecologically accountable agriculture /
    by Esbenshade, Henry W.
    Published 1978
    Book
  13. 13
    Agricultural ecology : an analysis of world food production systems /
    by Cox, George W., 1935-
    Published 1979
    Book
  14. 14
    Models of soil loss, land and water use, spatial agricultural structure, and the environment /
    Book
  15. 15
    Operation DARE, 1971, agriculture and the environment ; proceedings.
    Published 1971
    Conference Proceeding Book
  16. 16
    Soil, water, and crop production /
    Published 1979
    Book
  17. 17
    Conservation and agriculture /
    Published 1978
    Book
  18. 18
    Environmental quality and agriculture, what are the options? : Proceedings of the second Allerton conference.
    Published 1972
    Conference Proceeding Book
  19. 19
    Report on the Second FAO/UNFPA Expert Consultation on Land Resources for Populations of the Future.
    Published 1980
    Conference Proceeding Book
  20. 20
    The American cropland crisis : why U.S. farmland is being lost and how citizens and governments are trying to save what is left /
    by Fletcher, Wendell
    Published 1982
    Book
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