Search Results - Roll-Hansen, Jens

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  1. 1
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    Beising av Grønnsakfr/o: fors/ok i årene 1944 - 54 = Treatment of vegetable seeds
    by Roll-Hansen, Jens

    Published 1956
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  2. 2
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    Klumprotforsøk i nepe med midler spesielt til bruk i benk: = Clubroot experiments with turnip, with special emphasis on control measures in seedbeds
    by Roll-Hansen, Jens

    Published 1949
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  3. 3
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    Gulrot i gjodslingsforsøk pa sandjord: = Fertiliser experiments with carrots on sandy soil
    by Roll-Hansen, Jens

    Published 1975
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  4. 4
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    Damping av jord: Bekjempelse av plantesjukdommer som overføres med jorda
    by Roll-Hansen, Jens

    Published 1949
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  5. 5
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    How to make the best use of the properties of peat by the help of a simplified system of irrigation and dressing
    by Roll-Hansen, Jens

    Published 1976
    Order via interlibrary loan
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