Abstract
The article presents an analysis of the effectiveness of mineral fertilizers in arid conditions of the Saratov Left Bank. Conducted studies on the mineral fertilization on crops: winter wheat, winter rye, chickpea and sunflower showed that the application of ammonium nitrate before sowing in doses of 110–130 kg/ha in physical weight increases the yield of winter wheat by 0.13 t/ha, or by 14.7%; winter rye – by 0.33 t/ha, or by 19.2%; chickpea - by 0.08 t/ha, or 14.2%, sunflower - by 0.08 t/ha, or 14.7%. It is noted that the efficiency of mineral fertilizers increases in more favorable weather conditions. The calculation of economic efficiency showed that the costs of fertilizing pay off, additional profit in the cultivation of winter wheat amounted to 2937.5 rubles/ha, winter rye - 4327.5 rubles/ha, for chickpea crops - 3106.5 rubles/ha, sunflower - 3115.0 rubles/ha.
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