Abstract:
An important stage in the development of irrigation regimes for crops is the initial
assessment of the deficit in moisture supply, which is primarily conducted by
determination of the water balance of the zone. One of the simplest methods for
estimation of the moisture supply deficit is a direct comparison of the income of
natural humidification through precipitation, groundwater, etc., with the direct losses
of moisture from the land surface, expressed by evapotranspiration (or evaporationif
the surface is bare and free from any kind of vegetation). Currently, the reference
method for calculating evapotranspiration according to FAO, integrated into a number
of software products to simulate moisture consumption and crop productivity
depending on water regime, such as CROPWAT 8.0, AquaCrop, EVAPO, etc., is the
Penman-Monteith equation
