Leaching of nutrients from mixed fertilizer in some Finnish soils

by Johan Korkman
Published 1970-12-01

The effect of selenium fertilizers on the selenium content of barley, spring wheat and potatoes

by Johan Korkman
Published 1980-09-01

Sulphur status in Finnish cultivated soils

by Johan Korkman
Published 1973-04-01

The leaching and retention of copper lignosulphonate, copper sulphate and copper-EDTA in soil

by Johan Korkman, Pirkko Virta
Published 1979-01-01

The effect of cadmium contained in fertilizers on the cadmium content of vegetables

by Antti Jaakkola, Johan Korkman, Tuomo Juvankoski
Published 1979-01-01