Selection of corn hybrids ensuring the production of high-energy feed for modern dairy farming

The “line” of hybrids recommended by the Ural Research Institute of Agriculture Ob 140 SV (FAO 140), Ross 130 MV (FAO 130) and Kuban 101 SV (later Kuban 102 SV) (FAO 120) in 2016…2020 occupied 81.8…90.6% in the structure of sown seeds in the Sverdlovsk region. The area under corn by 2014 increased to 19.39 thousand hectares (6.3 times compared to 2008) and in 2015…2020 it stabilized at the level of 19.3…21.0 thousand hectares. The production test of the “grain” corn cultivation technology developed by the Ural Research Institute of Agricultural Sciences was carried out in four basic farms, in which the area of corn sown increased by 1.9 times over the period from 2012 to 2020, with a simultaneous increase in the sowings of high-protein crops: alfalfa and oilseeds. In the agricultural organizations of the SEC “Kilachevsky” and the SEC named after. The starch content in the silo reached 202-364 g/kg in 2017…2020, in some years it decreased to 142…146 g/kg (SEC “Kilachevsky”) and to 64…67 g/kg (SEC im. Zhukov). Over the past 3…5 years, individual farms of the region have begun to harvest cornage from corn. In the SEC “Kilachevsky”, the starch content in the new type of feed was 247 g/kg SV in 2018, 341…407 g/kg in 2019 and 439 g/kg SV in 2020. The research was carried out on the basis of the FSBSI URFANITS UrB RAS as part of the State Task on the topic “Creation and improvement of adaptive technologies for the cultivation and processing of economically significant agricultural crops based on the optimization of biotic and abiotic factors”

Modeling the damping of the angular motion of a nanosatellite using a hysteresis plate

Summary: "Mathematical modeling of the angular motion of a CubeSat type nanosatellite with a passive magnetic attitude control system is carried out. The attitude control system consists of a permanent magnet and hysteresis dampers in the form of a plate or a set of rods. The parameters of hysteresis dampers are studied using laboratory facility. A comparative analysis of the damping time using the plate and a set of rods is presented.