Quantity and quality of potato yield as influenced by unbalanced and excessive fertilization

by Markku Yli-Halla, Esko Viikari, Juha Palonen
Published 1987-04-01

Nitrogen fertilization of winter wheat in spring in Finland: comparison of calcium ammonium nitrate and calcium nitrate, and the effect of split application

by Oili Mohammadi, Leena Ristimäki, Stephan Vermeulen, Esko Viikari
Published 1991-04-01