Haku
Viitteet 1-3 / 3
Nutrient content and fertilizer value of livestock manure with special reference to cow manure
(Agricultural Research Centre, 1989)
Plant-available boron in soils and the boron requirement of spring oilseed rapes
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1985)
Mineral composition and its relation to texture and to some chemical properties in Finnish subsoils
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1974)