Infestation of white mustard agrocenosis, depending on agricultural practices in the conditions of the forest-steppe of the Middle Volga region

To obtain environmentally friendly products, in the technology of cultivating agricultural crops, basis modern weed control should be practices. In this regard, purpose research is to select optimal seeding rate and sowing method for white mustard, which increase self-regulation number weeds agrocenosis highest seed yield. The experiment was carried out 2020–2022 on meadow-chernozem soil experimental plot Federal State Budgetary Educational Institution Higher Education Penza Agrarian University. weather conditions during years were different, but they met requirements growth development mustard. growing season mustard first third passed under sufficient moisture at optimum temperature regime (HTC 1.3 1.0, respectively). second year research, drier developed, when hydrothermal coefficient 0.87. On average, minimum infestation crops before harvesting traced with an ordinary 36-51 pcs/m2 a wet weight 75.8-106.0 g/m2, while wide-row their 43-62 mass 91.0-129.2 where feeding area increased not only cultivated, also weeds. Moreover, cleanest maximum (3 million germinating seeds/ha) row spacing 15 cm, vegetative actively suppressed terms quantity component established 1.5 30 cm. Plants 2.0-2.5 seeds/ha more competitive, providing oilseed yield 2.46-2.58 t/ha.