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  1. 1
    od Domoguen, Robert L.
    Wydane w Agriculture (2008)
    Artykuł

    Bio-N fertilizer seen to boost organic farming in Cordillera
  2. 2
    od Charles, Daniel
    Wydane 2006
    Książka

    Between genius and genocide the tragedy of Fritz Haber, father of chemical warfare
  3. 3
    Wydane 2000
    Książka

    Decision processes for determining diagnostic and predictive criteria for soil nutrient management workshop proceedings, 6-10 September 1999, PhilRice, Maligaya, Munoz, Nueva Ecija, Philippines
  4. 4
    od Ardieta, Lulu P. Dia
    Wydane w Agriculture (1999)
    Artykuł

    Bio-N a powder that cuts cost of nitrogen in rice and corn
  5. 5
    Wydane 1996
    Książka

    Progress in nitrogen cycling studies proceedings of the 8th Nitrogen Workshop, held at the University of Ghent, 5-8 September 1994
  6. 6
    Wydane 1987
    Książka

    Efficiency of nitrogen fertilizers for rice.
  7. 7
    Analytics

    Environmental impact of agricultural nitrogen and phosphorus use
  8. 8
    Wydane 1982
    Książka

    Preliminary report on the first international trial on nitrogen fertilizer efficiency in deepwater rice.
  9. 9
    Visual Material

    Nutrient composition and growth of pine-apple and coconut intercrops as influenced by nitrogen, phosphorus and potasium [microform].
  10. 10
    od Shah, R.N
    Wydane 1979
    Książka

    Some considerations when estimating profitable levels of applied N for rice
  11. 11
    Visual Material

    The effects of nitrogen fertilization and mulching on the growth and survival of out-planted kaatoan bangkal (anthocephalus chinensis Rich.ex Walp.) seedlings and on some soil properties of an open grassland [microform]
  12. 12
    Visual Material

    Environmental factors affecting fertilizer nitrogen efficiency in flooded tropical rice [microform]
  13. 13
    Wydane 1978
    Książka

    Preliminary report on the international trial on nitrogen fertilizer efficiency in rainfed wetland rice, 1st-.
  14. 14
    Wydane 1978
    Książka

    Process technologies for nitrogen fertilizers
  15. 15
    od Seetanun, Wittaya 1944-
    Wydane 1977
    Visual Material

    Milling and seed qualities, and protein content of rice as affected by times of harvest and nitrogen application [microform]
  16. 16
    Visual Material

    The effects of sources, placements, timing of nitrogen application and placements of phosphorus fertilizer on the nitrogen uptake, growth and yield of rice variety BPI 76 and on levels of mineral nitrogen on Maahas clay [microform]
  17. 17
    Visual Material

    The influence of irrigation and nitrogen on dry seed yeild and germinability of four vegetable legumes harvested at different stages of maturity [microform]
  18. 18
    Visual Material

    Effect of varietal type, season, and management level on the nitrogen response of Indica rice [microform]
  19. 19
    Visual Material

    Methods, sources and time of nitrogen application for upland rice [microform]
  20. 20
    Visual Material

    The influence of nitrogen-potassium ration and moisture regime on juice quality and NPK composition of Phil 56226 [microform]
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