Haku
Viitteet 1-4 / 4
Wood, bark, peat and coal ashes as liming agents and sources of calcium, magnesium, potassium and phosphorus
(Agricultural Research Centre, 1991)
Chemical properties of air-dried samples from an unlimed and limed acid sulphate soil profile and leaching of elements from the profiles
(Agricultural Research Centre, 1991)
Acid-induced leaching of elements from cultivated soils
(Maatalouden tutkimuskeskus, 1991)
Fixation of ammonium and potassium applied simultaneously in Finnish soils
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1976)