The article presents the results of experiments to study the reaction of winter soft wheat of the Nemchinovskaya 17 variety to growth regulators with retardant properties. It was found that the use of growth regulators at the end of the tillering-exit phase into the tube reduced the height of plants by an average of 0.115 m compared to the control without treatment, where the height of plants was on average 0.813 m. According to the results of observations, a differentiated reaction of the tested winter wheat to lodging was established when using the studied growth regulators. In plants treated with Reggi and Messidor growth regulators, lodging was not observed and ranged from 4.4 to 5 points of lodging on the control without treatment – 3 points. The tested plant growth regulators have a significant impact on the yield of winter wheat of the studied variety and the formation of its structural elements. The increase in yield according to the variants of the experiment was about 4.1-6.1 t/ha depending on the type of drug. The highest yield increases were obtained with the use of Reggi at a dose of 1.5 l/ha.
Для реализации биологического потенциала продуктивности сельскохозяйственных культур необходимо создать оптимальную модель почвенного плодородия по содержанию гумуса и доступных форм элементов питания растений, мощности пахотного горизонта, структуре и плотности почвы. Подъем уровня плодородия почв осуществляется регулярным известкованием, внесением различных видов органических и минеральных удобрений, рациональной обработкой почвы и севооборотов с включением многолетних трав и зернобобовых культур. Разработаны агротехнические основы использования биокомпоста в качестве органических удобрений для воспроизводства плодородия в системе минимально ярусной обработки дерново-подзолистых почв Нечерноземной зоны России. Оценена эффективность биокомпоста в сравнении с минеральными удобрениями и обычным компостом по влиянию на плодородие почвы, урожайность и качество продукции.
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