Haku
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The effect of rate of leys and intensity of nitrogen dressing in different crop rotations II : results obtained in the years 1958-69 in a rotation trial established on clay soil at Tikkurila in 1952
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1971)
Urea laitumen typpilannoitteena
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1968)
The effect of rate of leys and intensity of nitrogen dressing in different crop rotations : results obtained in the years 1958-65 from a rotation trial established at Tikkurila in 1952
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1967)