The reasons for the low effectiveness of agro-ameliorative measures on heavy soils of Kolkhida

Abstract

The article analyzes the reasons for the low efficiency of ameliorative measures on heavy clay soils of Kolkhida. It is shown that: the low efficiency of the investigated ameliorative measures can be explained by the unfavorable conditions of the formation of the structure in clay soils of wetlands Colchis:

• Mechanical and mineralogical composition of soils contains 50% or more silt, which includes minerals characterized by intracrystal- line absorption and a large force that prevents the formation of structures.
• Drainage and high standing of soil-groundwater cause a waterlogging of the biologically active.
• Reversibility of colloids prevents their coagulability, and thus the structuring of the soil during. 

In conclusion, all of the above factors prevent the formation of a solid agronomically valuable structure of the clay swelling soils of Colchis and determine the low effectiveness of ameliorative measures.