Haku
Viitteet 1-3 / 3
The effect of selenium fertilizers on the selenium content of barley, spring wheat and potatoes
(Suomen maataloustieteellinen seura, 1980)
The effect of foliar application of seaweed extract on potato
(Suomen maataloustieteellinen seura, 1989)
Quantity and quality of potato yield as influenced by unbalanced and excessive fertilization
(Suomen maataloustieteellinen seura, 1987)