Showing 261 - 280 results of 488 for search '', query time: 0.20s Refine Results
  1. 261
    Visual Material

    Nitrogen availability in five soils under different management systems and its effects on growth and yield of rice [microform]
  2. 262
    by Samonte, Henry Peralta 1939-
    Published 1976
    Visual Material

    Evaluation and correlation on selected phosphorous soil test methods for paddy soils [microform]
  3. 263
    by Sanchez, Pedro A. 1940-
    Published 1976
    Book

    Properties and management of soils in the tropics
  4. 264
    by Abad, Ramon Gil
    Published 1976
    Visual Material

    Soil in relation to socio-economic prolems in the Philippines [microform]
  5. 265
    Visual Material

    Evaluation of some phosphorous tests for lowland rice soils [microform]
  6. 266
    Published 1976
    Map

    Soil map Mindoro Province, Philippines
  7. 267
    Published 1976
    Map

    Soil map Cavite province, Philippines
  8. 268
    Published 1976
    Book

    Laboratory procedures for soil analysis
  9. 269
    by Gines, Hermenegildo C. 1943-
    Published 1975
    Visual Material

    A study on the types of land preparations for rice and their effects on following upland crops [microform]
  10. 270
    Visual Material

    Improving the productivity of Luisiana clay planted to rice [microform]
  11. 271
    by Montecillo, Lupo A. 1934-
    Published 1975
    Visual Material

    Effects of potassium on the growth, yield and on the nutrient cation relationship in rice grown on calcereous soils [microform]
  12. 272
    by Maxino, Gerardo 1941-
    Published 1975
    Visual Material

    An experimental study of the radiometric determination of potassium content of soils and minerals [microform]
  13. 273
    Published 1975
    Map

    Soil map of Marikina
  14. 274
    Published 1975
    Map

    Soil map Tarlac province, Philippines
  15. 275
    by Yoshida, Tomio, Padre, Benjamin C.
    Published 1975
    Analytics

    Effect of organic matter application and water regimes on the transformation of fertilizer nitrogen in a Philippine soil
  16. 276
    by Natividad, Narciso M.
    Published 1974
    Book

    Soil survey of Abra province, Philippines a reconnaissance soil survey
  17. 277
    by Montecillo, Lupo Abaquita
    Published 1974
    Visual Material

    Mineralogy and chemistry of certain Philippine soils
  18. 278
    by Chantanapokul, Utai 1945-
    Published 1974
    Visual Material

    Effect of the decomposition of plant materials and animal manures and their associated microorganisms on the pathogenicity of Sclerotium Rolfsii Sacc. [microform]
  19. 279
    by Kezdi, Arpad
    Published 1974
    Book

    Handbook of soil mechanics
  20. 280
    Book

    world of the soil.
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