6.9. Determining the underground water flow. ....157
6.9.1. Determination of depth and mineralization of underground waters. .....157
6.9.2. Determination of groundwater evaporation from soil and transpiration from
plants using lysimetric experiments. ......165
6.10. Determine the amount of underground water by saline accumulation in
the upper layer of the aeration. ......172
6.10.1. Establishment of determine the amount of
underground water by saline
accumulation in the upper layer of the aeration. .......172
6.10.2. Quick detection method of soil and water salts. .......176
6.11. Mathematical processing with the method of variation statistic
calculation of crop yield data from agricultural fields. .....185
6.11.1. Determination of mathematical processing in variational
statistics in the
received yield data. .......185
6.12. Economic efficiency of agricultural production. ....193
6.12.1. Economic efficiency of cotton growing. ......193
6.12.2. Economic efficiency of winter wheat production. .......196
The main and additional educational literature and information sources. 198