RU
Issledovanija po raspredeleniju usvoyaemyh ehlementov v pochvennom profile. Chast' III. Vzaimozavisimost' mezhdu soderzhaniem organicheskogo ugleroda, kolloidnogo ila v pochve i eeh pH a soderzhaniem usvojaemogo magnija i nekotoryh mikroehlementov
EN
Investigations on dislocation of available elements in soil profiles. Part III. Correlation between organic carbon and colloidal clay content in soil, its pH and content of available magnesium and some microelements