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  1. 1
    著者: Manguiat, Ireneo Javier 1945-
    出版事項 1970
    学位論文

    Microbiological transformations of nitrogen in flooded maahas clay
  2. 2
    著者: Fagade, Samson Olaseni 1941-
    出版事項 1970
    学位論文

    Growth characteristics, grain yield and quality of rice as affected by plant density and nitrogen level
  3. 3
    著者: Ho, I-Liang 1932-
    出版事項 1970
    学位論文

    Effect of nitrogen on fruit and seed yield and seed quality of tomato
  4. 4
    著者: Mariano, Bernardo Santiago 1940-
    出版事項 1969
    学位論文

    Influence of nitrogen and plant spacing on the yield components of non-photoperiod sensitive rice varieties
  5. 5
    著者: Alferez, Arturo Carino 1940-
    出版事項 1968
    学位論文

    The influence of irrigation and nitrogen on dry seed yield and germinability of four vegetable legumes harvested at different stages of maturity
  6. 6
    著者: Obias, Raymundo O. 1941-
    出版事項 1967
    学位論文

    Timing of nitrogen application on lowland rice varieties differing in growth duration
  7. 7
    著者: Simsiman, Geronimo Vivit 1937-
    出版事項 1966
    学位論文

    Effects of nitrogen forms and methods of application for lowland rice
  8. 8
    図書

    Interaction between soil moisture regime and nitrogen level in upland rice
  9. 9
    図書

    Nitrogen and potassium fertilization of cotton (Gossypium hirsutum L.)
  10. 10
    図書

    The influence of nitrogen-potassium ratio and moisture regime on juice quality and NPK composition of Phi 56226
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