Haku
Viitteet 1-2 / 2
The effect of magnesium, potassium and nitrogen fertilizers on the uptake of nutrients by spring cereals and cultivated grassland
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1979)
Effects of heavy nitrogen dressings upon release of potassium from soils cropped with ley grasses
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1973)