Kahden maan Ebba - Riikka Ala-Harja - Kunto: Hyvä - Antikvariaatti.net
Pilot Gypsum presented in Poland - Project NutriTrade
Venla J Ala-Harja – Sivu 5 – SAVE
Kirjailija Riikka Ala-Harja
Riikka Ala-Harja: En Saab
Gypsum amendment of arable fields as a water protection measure – farmers' experience, phosphorus reduction potential and associated costs drawn from a large scale pilot | Agricultural and Food Science