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  1. 1
    Long term effect of copper sulphate fertilization of organic soils on yield of barley and DTPA-extractable soil copper levels
    by Dowbenko, Raymond Edward
    Published 2013
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  2. 2
    Long term effect of copper sulphate fertilization of organic soils on yield of barley and DTPA-extractable soil copper levels
    by Dowbenko, Raymond Edward
    Published 2013
    Get full text
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