The publication of this Handbook was supported by the Russian Federation

Cost effectiveness of laser land levelling
A level ground surface is the most important factor of  effective water and soil use under irrigation. 
An uneven field surface hinders soil tillage and causes waterlogging within hollows during irrigation 
followed by rapid soil salinization. It is believed that a patchy distribution of  salt-affected and bare 
soils within fields results from imperfect levelling of  the surface.
Laser-guided land levelling creates a surface with a level range of  just ±3 cm, which provides for 
the even moistening of  soil within fields and prevents the development of  salinization patches. An 
analysis of  the costs of  laser land levelling in the experiment conducted at the ‘A.Temur’ Farm in 
the Urgench District of  the Khorezm Region in 2010 demonstrated that this innovative technology 
was cost effective and profitable (Table 6.3.1).

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Soil salinity manаgement manual | Part I.Soil salinity management in the Eurasian Region