Haku
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P and N in runoff from a heavy clay soil under reduced tillage
(MTT Agrifood Research FinlandNJF, 2003)
Nutrient losses from organic and conventional crop rotations : a case study on fine sand soil
(MTT Agrifood Research FinlandNJF, 2003)
Water discharge and nutrient leaching from organic mixed crop rotation
(Tartu University Press, 2006)