Contents of mineral elements in Finnish cereal straw

by Antti Jaakkola, Jorma Syvälahti, Esko Saari
Published 1982-12-01

Mineral content of grain yield of cereals and the effect of fertilization on it

by Yrjö Pessi, Jorma Syvälahti, Esko Saari, Mikko Ylänen
Published 1974-09-01

Fertilizing experiments with anhydrous ammonia at Kotkaniemi

by Yrjö Pessi, Jorma Syvälahti, Auvo Leskelä, Mikko Ylänen
Published 1971-12-01

Autumn and winter application of nitrogen fertilizers on clay soils

by Yrjö Pessi, Mikko Ylänen, Auvo Leskelä, Jorma Syvälahti
Published 1971-05-01

Results of tests made with placement fertilization on the Kotkaniemi experimental farm

by Yrjö Pessi, Mikko Ylänen, Auvo Leskelä, Jorma Syvälahti
Published 1970-09-01

Syysviljojen talvituhosienien torjunta PCNB:llä

by Yrjö Pessi, Mikko Ylänen, O. E. Savas, M. Nieminen, Auvo Leskelä, Jorma Syvälahti
Published 1970-05-01