Bilanchyn, Yaroslav M.Rezvaya, SvetlanaMedinets, Sergiy V.Pitsyk, Vasyl Z.Біланчин, Ярослав МихайловичБиланчин, Ярослав МихайловичПицык, Василий ЗиновьевичПіцик, Василь Зіновійович2012-12-072012-12-072012-03Chemistry Journal of Moldova. General, Industrial and Ecological Chemistry.https://dspace.onu.edu.ua/handle/123456789/2803Results of chemical processes’ dynamic studies of many years (1971-2011) in the soils of Odessa Region have been described. The most significant in the last 15-20 years have been changes of humus content and ecological & agrochemical status of black soils. In spite of some increase in the norm of fertilizers input for the last 5 years the negative balance of plant nutrition elements in soils is preserved. Ways of optimization of humus and ecological & agrochemical status of soils in the region and increase of their fertility have been proposed.enblack soilsOdessa Regionhumus contentecological & agrochemical statusArticle