Today, Helsingin Sanomat wrote about the gypsum treatment of fields in its editorial http://www.hs.fi/paakirjoitukset/art-2000005039764.html (in Finnish only).
Today, Helsingin Sanomat wrote about the gypsum treatment of fields in its editorial http://www.hs.fi/paakirjoitukset/art-2000005039764.html (in Finnish only).