Agroecological assessment of the application of the growth regulator when cultivating spring rapeseed and sunflower in the southern part of the Non-Black Earth Zone

The article presents the results of comprehensive studies and scientifically substantiated, experimentally confirmed the use of the Larixifol growth regulator, VE, optimization of the pro-duction process, the formation of yield of spring rapeseed and sunflower, taking into account the agroclimatic conditions of the Korablinsky district of the Ryazan region. The maximum increase in the yield of green rapeseed mass was obtained using a growth regulator in a dosage of 150 ml/ha and amounted to 29.1 c/ha (+ 11.6%). The maximum increase in rapeseed yield was ob-tained at a dosage of 150 ml/ha - 4.7 c/ha (18.1%). The research results showed that in order to improve the sowing qualities of seeds, as well as to increase the yield of spring rapeseed and sun-flower in the Ryazan region, it is recommended to carry out pre-sowing treatment of seeds and plants by vegetation with the growth regulator Larixifol, VE. Keywords: SPRING RAPESEED, SUNFLOWER, GROWTH REGULATOR, YIELD, SEED TREAT-MENT, QUALITY