Özet:

The volume change in the soil occurs by internal forces arising during natural events such as moisture and drying or by mechanical external forces such as soil processing and intense machine use. The inappropriate physical conditions of the soil; the soil has a negative impact on water, air, temperature and grinding. This effect causes a mechanical obstacle to root development and output. The most important factor that causes mechanical obstacle in the soil environment is the soil stopping that occurs under the surface of the soil, such as the crop layer and under the processing depth, such as the pull base. The unconscious use of agricultural techniques increases the increased poverty of the soil in terms of organic material, the structural structure and aggregation are deteriorated by the structural degradation, the soil can be compressed, and the formation of the surface layer of the cortex. As a natural result, the productivity potential of the soil is significantly reduced. Keywords: land compression, types of compression, the effects of compression. Soil Compaction and Its Importance for Agriculture ABSTRACT: Volumetric changes in soils occur either by inner forces (natural processes) such as wetting-drying or by outer forces (mechanical forces) including soil tillage and the use of heavy-machines. Unproper soil physical properties affect soil water, air, temperature and seeding negatively, and also form mechanical resistance against root development and seed emergence. One of the most important factors causing mechanical resistance in soil is soil compaction due to crust formation in soil surface or hard-pan in the bottom of tillage depth. Misuse of agricultural practices, low organic matter in soil, and soil structural degradation increase the risk of crusting and compaction, which results in low productivity in soils. Key words: Soil compaction, compaction types, effects of compaction.