Haku
Viitteet 1-8 / 8
Typpilannoitusta koskevia tutkimuksia : selostus kiinteillä koekentillä v. 1928-1960 suoritetuissa eri typpimäärien kokeissa saaduista tuloksista
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1962)
Effects of heavy nitrogen fertilization on iron, manganese, sodium, zinc, copper, strontium, molybdenum and cobalt contents in ley grasses
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1974)
Effects of nitrogen fertilization on the Ca/P ratio of grass herbage
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1977)
Amino acid composition of timothy, meadow fescue, cocksfoot and perennial ryegrass at two levels of nitrogen fertilization and at successive cuttings
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1979)
The effect of magnesium, potassium and nitrogen fertilizers on the uptake of nutrients by spring cereals and cultivated grassland
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1979)
The effect of magnesium fertilizing on spring cereal and cultivated ley yield and on soil nutrient contents at two potassium and nitrogen fertilizer levels
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1978)
Organic ammonium salts as nitrogen fertilizers
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1972)
Effects of heavy nitrogen dressings upon release of potassium from soils cropped with ley grasses
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1973)