Haku
Viitteet 1-8 / 8
Some extraction methods as indicators of need for phosphorus fertilization
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1986)
Kauran lannoituksesta : uudisviljelykokeiden tuloksia vuosilta 1947-61
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1970)
The dependence of yield increases obtained with phosphorus and potassium fertilization on soil test values and soil pH
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1980)
Fertility of different mire type groups
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1980)
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)
Paikallisten lannoituskokeiden heinäsatoihin vaikuttavista tekijöistä
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1965)
Comparisons of five soil testing methods for phosphorus determination
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1967)
Acid ammonium acetate and acid ammonium acetate/EDTA as extractants for phosphorus-32, aluminum and iron in soils
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1977)