TY JOUR TI SOIL AGGREGATE STRUCTURE AND WATER STABILITY OF LEACHED CHERNOZEM IN THE CROP ROTATION LINKS WITH CLEAN, GREEN FALLOWS AND LUCERNE KW lucerne KW soil aggregates KW leached chernozem KW green soils JO Bulletin of KSAU AU Berzin, A.M. AU Polosina, V.A. AU Kalinina, O.B. PY 2012 IS PB Krasnoyarsk State Agrarian University