Influence of chemicalization agents on the formation of emmer wheat crop in the southern forest-steppe of West Siberia

Abstract

This paper discusses the research findings on the effect of chemicalization on the yield of emmer variety Runo from 2021 through 2023 on meadow-chernozem, medium-thick, low-humus, medium-loamy soil under the conditions of the southern forest-steppe of the Omsk Region. Emmer was sown as the second crop after spring wheat following bare fallow. The experiment was replicated four times; the plot area was 60 m² (2 × 30). The experiments were established against two nutritional backgrounds: without any fertilizers and 100 kg of ammonium phosphate fertilizer (N₁₂P₅₂) at sowing. Three intensification variants were applied on these backgrounds: 1) herbicide Puma Plus (1.4 L ha) at tillering stage; 2) herbicide + Albit fertilizer (40 mL ha) at tillering stage; 3) herbicide + Albit fertilizer + Isagri Vita fertilizer (1 L ha) at tillering stage + Isagri Vita fertilizer (1 L ha) at the beginning of ear formation. Working fluid consumption amounted to 200 L ha. The studies revealed weak response of emmer to the additional application of chemicals. Herbicide application along with fertilizers ensured a gain of 0.08 t ha. With Albit was added, the yield increased by 0.07-0.08 t ha. With complex chemicalization, compared to the use of herbicide only, additional gain amounted to 0.12-0.13 t ha.