Haku
Viitteet 1-3 / 3
The selenium content of some agricultural crops and soils before and after the addition of selenium to fertilizers in Finland
(Agricultural Research Centre, 1990)
Effects of liming and the addition of sulphate and phosphate on the selenium content of Italian rye grass
(Agricultural Research Centre, 1990)
Selenium in soil extracts and plants determined by fluorometry
(Agricultural Research Centre, 1990)