Ladychuk D. Features of formation water and solt of a mode darkly - chestnut soils of the south of Ukraine in conditions long irrigation on a background of a horizontal drainage.

________________________________________________________3.Object of research - dark - chestnut of ground of the south of Ukraine. The purpose - to define features of formation water and solt of a mode of the soil in conditions twenty years' irrigation on a background of a horizontal drainage. Methods - field and laboratory. Results: for the theory - for the first time define of feature of change water and solt of a mode of the soil with long irrigation with different агромелиоративной of efficiency of a horizontal drainage; for practice - optimization solt modes of the soil, that raises productivity of grain cultures on 4,0-9,0 с/gа. A degree of introduction - the results of researches are checked up under production conditions - in РCF "Ukraine" Djankoy of area AR Crimea on the area 472 га for 1996-1999 years. Sphere of use: facilities of southern region of Ukraine, HIGH SCHOOLS of different educational levels.