%0 Journal Article %T MOBILE HUMIC SUBSTANCES IN THE SPATIAL VARIABILITY OF THE CHERNOZEM STRUCTURAL ORGANIZATION AGGREGATE LEVEL %A Kurachenko, N.L. %A Alexandrova, S.V. %K soil, humic substances, structural composition, aggregate composition %J Bulletin of KSAU %D 2012 %N %P 5 %I Krasnoyarsk State Agrarian University