Showing 51 - 60 results of 75 for search '"Soil analysis."', 查詢時間: 0.02s Refine Results
  1. 51

    Laboratory procedures for soil analysis

    出版 1976
    圖書

    Laboratory procedures for soil analysis
  2. 52

    Nitrogen availability in five soils under different management systems and its effects on growth and yield of rice [microform] 由 Briones, Angelina Mariano 1939-

    出版 1976
    Visual Material

    Nitrogen availability in five soils under different management systems and its effects on growth and yield of rice [microform]
  3. 53

    A study on the types of land preparations for rice and their effects on following upland crops [microform] 由 Gines, Hermenegildo C. 1943-

    出版 1975
    Visual Material

    A study on the types of land preparations for rice and their effects on following upland crops [microform]
  4. 54

    Methods of analysis for waters, organic matter, and pond bottom soils used in fisheries research 由 Swingle, Homer Scott

    出版 1969
    圖書

    Methods of analysis for waters, organic matter, and pond bottom soils used in fisheries research
  5. 55

    Microbial transformation of sulfur in soil 由 Vangnai, Somsak 1939-

    出版 1966
    Thesis

    Microbial transformation of sulfur in soil
  6. 56

    Influence of internal drainage on the chemical and electrochemical changes of four flooded soils and on the growth of rice 由 Krutkun, Tawin 1937-

    出版 1966
    Thesis

    Influence of internal drainage on the chemical and electrochemical changes of four flooded soils and on the growth of rice
  7. 57

    Influence of the duration of submergence of the soil prior to transplanting on the growth and yield of rice 由 Prabuddham, Paiboon 1939-

    出版 1966
    Thesis

    Influence of the duration of submergence of the soil prior to transplanting on the growth and yield of rice
  8. 58

    Nitrogen availability in five soils under different management systems and its effects on growth and yield of rice 由 Briones, Angelina (Mariano) 1939-

    出版 1966
    Thesis

    Nitrogen availability in five soils under different management systems and its effects on growth and yield of rice
  9. 59

    Nitrogen transformation in flooded maahas clay with and without rice 由 Racho, Vicente Villapaz 1937-

    出版 1966
    Thesis

    Nitrogen transformation in flooded maahas clay with and without rice
  10. 60

    Nitrogen transformations in flooded soils 由 Salandanan, Salvador 1932-

    出版 1966
    Thesis

    Nitrogen transformations in flooded soils

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