Haku
Viitteet 1-3 / 3
Some extraction methods as indicators of need for phosphorus fertilization
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1986)
Soil phosphorus test values obtained by acid ammonium acetate, water and resin extraction as predictors of phosphorus content in timothy (Phleum pratense L.)
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1979)
Acid ammonium acetate and acid ammonium acetate/EDTA as extractants for phosphorus-32, aluminum and iron in soils
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1977)