Showing 21 - 40 results of 95 for search '', query time: 0.21s Refine Results
  1. 21
    Modelling of agricultural production : weather, soils and crops /
    by Keulen, H. van
    Published 1986
    Book
  2. 22
    Soil-vegetation correlations in prairie potholes of Beadle and Deuel counties, South Dakota /
    Published 1988
    Government Document Book
  3. 23
    The Erosion-productivity economics model : a user's guide /
    Published 1987
    Government Document Book
  4. 24
    Études morphopédologiques, projet Bagré : notice explicative et annexes, études au 1/100,000, région de Niaogo /
    by Guillobez, S.
    Published 1977
    Microform Book
  5. 25
    Nécessité agronomique et interêt économique d'une intensification des systèmes agricoles au Sénégal /
    Published 1972
    Microform Book
  6. 26
    Le modèle "45" : programme lineaire pour les exploitations agricoles du Sine Saloum sud au Sénégal et calculs de budgets automatisés /
    by Richard, Jean-François
    Published 1976
    Microform Book
  7. 27
    Recherche sur les sols tropicaux : évaluation de la fertilité des sols du Mali en vases de végétation /
    by Traore, M. F.
    Published 1972
    Microform Book
  8. 28
    Soil productivity aspects of agroforestry /
    by Nair, P. K. R.
    Published 1984
    Book
  9. 29
    Organic materials and soil productivity /
    Published 1977
    Book
  10. 30
    Soil chemical properties of raised planting beds in a northern Idaho forest /
    Published 1989
    Government Document Book
  11. 31
    Natural production potential of some Rio Puerco soils in New Mexico /
    Published 1988
    Government Document Book
  12. 32
    Proceedings of the Great Plains Soil Fertility Conference.
    Conference Proceeding
  13. 33
    Agricultural productivity, sustainability, and fertilizer use /
    Book
  14. 34
    A comparison between weather simulated within the Erosion/Productivity Impact Calculator (EPIC) and observed data /
    by Wallis, Trevor W.R
    Published 1992
    Link to OAKTrust copy
    Thesis eBook
  15. 35
    The effect of stone retention walls on soil productivity and crop performance on selected hillside farms in southern Honduras /
    by Thompson, Marc Ellery, 1950-
    Published 1992
    Link to OAKTrust copy
    Thesis eBook
  16. 36
    Green manuring for soil productivity improvement /
    by Meelu, O. P.
    Published 1994
    Book
  17. 37
    Long-term soil productivity research : a national program in sustaining forest ecosystems.
    Published 1995
    Government Document Book
  18. 38
    Sustainable dryland cropping in relation to soil productivity /
    by Pearson, C. J.
    Published 1995
    Book
  19. 39
    Herbage production differs with soil in the pinyon-juniper type of Arizona /
    by Jameson, Donald A.
    Published 1969
    Government Document Book
  20. 40
    Potential for forage legumes on land in West Africa : land productivity assessment of legumes for crop-livestock systems.
    Published 1996
    Book
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