Haku
Viitteet 1-4 / 4
Different nitrogen fertilizers on meadow fescue ley
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1980)
Soil magnesium and fertilizer magnesium uptake by ryegrass on nine mineral soils at two ammonium nitrate levels I. Magnesium uptake
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1981)
Soil magnesium and fertilizer magnesium uptake by ryegrass on nine mineral soils at two ammonium nitrate levels II. Magnesium content of soils
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1981)
Mineral nitrogen reserves in soil and nitrogen fertilization of barley
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1985)