Methods of improving efficiency of soft spring wheat cultivation technology

The paper presents the results of research into the technology of soft spring wheat cultivation of the Siberian Alliance variety taking into account the formation of the production process. The experiment was carried out in 2015–2019 in the zone of the northern forest-steppe of Kuznetsk Depression.  The  work  was  done  in  a  long-term  stationary  experiment  of  grain-fallow  crop rotation: fallow (bare, green-manured – rapeseed, melilot) – wheat – peas – barley (pure barley and intercropped with melilot). The following soil tillage systems were studied: deep moldboard (control), deep combined, minimum combined, minimum moldboard. The soil of the experimental plot was characterized as leached medium-textured, medium humus, heavy-loam chernozem. It was revealed that the influence of the preceding crop on the production process of soft spring wheat accounted for 80.4%, the effect of the soil cultivation system was 13.8%. The maximum yield in the experiment was obtained with minimum moldboard system of soil cultivation preceded by rapeseed green-manured fallow (3.34 t/ha) with the lowest cost of grain (4.6 thousand rubles/t) and high profit (30.3 thousand rubles/ha), control indicators being 3.26 t/ha, 9.2 thousand rubles/t and 15.2 thousand rubles/ha, respectively. The following positive effects on the formation of the production process were identified: soil moisture availability, microbiological activity, a decrease in phytosanitary tension, lack of soil compaction at a high content of agronomically valuable particles. Sowing rapeseed on green-manured fallow in the current crop rotation with the application of minimum moldboard tillage system is the most effective method of cultivating soft spring wheat of the Siberian Alliance variety in the northern forest-steppe of Kuznetsk Depression.

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