accordance with their economic conditions in relation to a particular year of water
availability.
The results of laboratory research on verification and identification of model
coefficients are considered.
In order to check the coefficient K, field experiments were carried out in the
production conditions at POC "Zorya" of the Belozersk district of the Kherson region,
on fields with alfalfa second year and tomatoes.
The dynamics of the calculated and actual soil moisture under alfalfa of the second
year in a layer of 0.7 m is shown in Fig. 5.
Figure 5. Comparison of the estimated (1) and actual (2) soil moisture under
alfalfa of the second year in a layer of 0.7 m
In addition to checking the calculation formulas, this resource evaluated the
resource efficiency of water-saving irrigation regimes.
According to the results of the observations, in graphical form, an analysis of the
dynamics of the volumetric moisture content of the soil, calculated on the basis of the
hydrophysical characteristic (OGH) according to the measured strain gauge method of
soil moisture suction pressure (Fig. 6). In fig. 6. The actual dynamics of soil moisture
- 1321 -