Haku
Viitteet 1-3 / 3
The emergence of weeds in the field
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1981)
Climatic risks to the yield and quality of field crops in Finland : I. Basic facts about Finnish field crops production
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1987)
Climatic risks to the yield and quality of field crops in Finland : II. Cultivation zones and sub-divisions
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1987)