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Unequal distribution of annual precipitation is negative trend of last year?s influencing primary agricultural field production. One of the natural possibility for elimination of this gesture is to increase patience to the actual conditions and functionality of root system of the plants. Among possible abilities of field crops protection to abiotic stresses during vegetation period belongs strengthening of their natural tolerance. Present situation of soil degradation does not allow to plants sufficiently deploy r...

Light soils contain up to 20 % clay particles, which results in their high water and nutrient permeability and thus low fertility. Another factor affecting light soils is their easy drying. The Hodov locality was chosen for an experiment suitable in terms of quite low rainfall per year and soil type corresponding to light soils. The experimental locality Hodov belongs to a slightly warm climate region (MT9) with a long-term average rainfall of 500 mm/year. The prevailing soil type is Mesobasic Cambisol with a high...