Showing 1 - 18 results of 18 for search '', query time: 0.31s Refine Results
  1. 1
    by Yllano, Orlex Baylen 1973-
    Published 2001
    Thesis

    Morphological and anatomical responses of corn (Zea mays L. IPB var. 911) seedlings to lead nitrate
  2. 2
    Published 1996
    Book

    Progress in nitrogen cycling studies proceedings of the 8th Nitrogen Workshop, held at the University of Ghent, 5-8 September 1994
  3. 3
    by Watanabe, Iwao
    Published 1991
    Analytics

    Biological nitrogen fixation in sustainable rice farming
  4. 4
    Analytics

    Ecological study of the Bontoc rice paddy system a case of human-environment interaction
  5. 5
    Published 1979
    Book

    Nitrogen and rice
  6. 6
    Published 1979
    Book

    Nitrogen and rice
  7. 7
    Published 1979
    Book

    Nitrogen and rice
  8. 8
    by Watanabe, Iwao
    Published 1978
    Analytics

    Biological nitrogen fixation in rice soils
  9. 9
    Visual Material

    Distribution of the forms of nitrogen in some Philippine soils [microform]
  10. 10
    by Manguiat, Ireneo Javier 1945-
    Published 1977
    Visual Material

    Microbiological transformations of nitrogen in flooded maahas clay [microform]
  11. 11
    Visual Material

    In situ determination of biological nitrogen fixation by blue-green algae in lowland rice fields [microform].
  12. 12
    Analytics

    Biological nitrogen fixation in paddy field studied by in SITU acetylene-reduction assays
  13. 13
    by Manguiat, Ireneo Javier 1945-
    Published 1970
    Thesis

    Microbiological transformations of nitrogen in flooded maahas clay
  14. 14
    Book

    Evaluation of nitrogen test methods for soils planted to sugarcane
  15. 15
    Book

    The effect of tillage method and nitrogen rate on some soil properties and corn response
  16. 16
    Book

    Distribution of the forms of nitrigen in some Philippines soils
  17. 17
    Book

    Evaluation of nitrogen and phosphorus soil tests for upland soils of Bukidnon
  18. 18
    Book

    Soil nitrogen as fertilizer or pollutant proceedings and report of a research coordination meeting
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