Solar energy for soil conditioning. - Joanna Pawlat; Jaroslaw Diatczyk; Grzegorz Komarzyniec; Tomasz Gisewski; Henryka D. Stryczewska; Kenji Ebihara; Fumiaki Mitsugi; Shinichi Aoqui; Toshiyuki Nakamiya (EUROCON, 2011)