Чисельність мікробіоти ризосфери соризу за використання гербіциду й регулятора росту рослин

Abstract

The article presents the results of research on the change of the total count of microbiota, mi- cromycetes and azotobacter in rhizosphere of Sorghum orysoidum crops depending on the rates of herbicide Peak 75 WG (lO; l5; 2O; 25 g/ha) application and methods of applying plant growth regulator Regoplant (crop spraying (5Oml/ha) and seed treatment (25O ml/t)). In the course of research, there was found a dependence of the development of soil microbiota in Sorghum ory- soidum crops on various herbicide rates and methods of application of the plant growth regula- tor. It was determined that the optimal eJect on the soil microbiota was achieved in the variants of complex application of the herbicide with plant growth regulator: Regoplant 25O ml/t (seed treatment) + Peak 75 WG l5-2O g/ha + Regoplant 5O ml/ha (treatment of vegetative plants).