%0 Journal Article %T THE IMPACT OF LUCERNE’S NEW BREEDS ON THE STRUCTURE OF ARABLE LAYER OF HEAVY-GREY FOREST SOILS DEPENDING ON MINERAL NUTRITION LEVEL %A Sharipova, G.. %A Tagirov, M.S. %A Shaytanov, O.. %K alfalfa varieties, soil structure, the ratio of structure, water-stable aggregates, gray forest soil. %J Vestnik of Kazan State Agrarian University %D 2015 %N 10 %P 4 %I Kazan state agrarian University