The data of field experiments on the effectiveness of applying basic fertilizers and non-root nitrogen fertilizing to the gray wheatgrass of the Sova variety in the forest-steppe of Western Siberia are presented. Studies have shown that the use of mineral fertilizers in the main application had a positive effect on the productivity of gray wheatgrass. In the version without fertilizers, in 2019, the seed yield was 0.74 t/ha, in 2020 - 0.72 t/ha. Fertilization at a dose of N100P120 increased the yield of gray wheatgrass seeds by 0.37 in 2019 and by 0.46 t/ha in 2020. The use of foliar top dressing in 2019 during the tillering phase at a dose of 15 kg/ha of wheat increased the yield of gray wheatgrass grain by 0.12 t/ha. Due to adverse weather conditions in 2020, nitrogen leaf top dressing during the tillering phase was not effective. In variants using fertilizers, non-root nitrogen top dressing was also ineffective, since the main fertilizer fully provided the plants with nutrients. N 100 P 120 . The protein and gluten content in this variant was 18.6 and 36.4%, respectively. Non-root top dressing of glaucous wheatgrass during the milk ripeness phase did not have a significant effect on yield. Non-root nitrogen top dressing had a positive effect on the grain quality of glaucous wheatgrass only during the milk ripeness phase. On average, in 2019-2020, the use of leaf fertilizers increased the protein content by 1.0% and gluten content by 2.4%. Against the background of the use of fertilizers, all grain quality indicators were significantly higher in comparison with non-fertilized ones. The best quality indicators were provided by the option of using foliar top dressing in the tillering and milk ripeness phases against the background of the basic fertilizer N 100 P 120 . The protein and gluten content in this variant was 18.6 and 36.4%, respectively.
gray wheatgrass, mineral fertilizers, non-root nitrogen fertilizers, yield, quality
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