Selection of forecrops and sowing time for the new winter durum wheat varieties ‘Yubilyarka’ and ‘Yantarina’

The current study was carried out in the southern part of Rostov region FSBSI “ARC “Donskoy” 2020–2022. purpose to identify best forecrops and optimal sowing time for new winter durum wheat varieties ‘Yubilyarka’ ‘Yantarina’. There has been established that ‘Yantarina’ respond well choice a forecrop time. effect on productivity 90 % 85 %, respectively. revealed weedfree fallow one studied varieties, providing formation mean grain 6.25–6.31 t/ha over years trial when sown from September 10 30. At same after sunflower, 3.73–4.02 lowest during entire period study. all forecrops, obtained October (late date) averaged 5.60 5.77 2020–2022 fallow; 4.16 4.35 peas; 3.51 3.63 sunflower. formed largest number productive stems 540–609 pcs/m 2 fallow, smallest 382–410 non-fallow forecrops. quality indicators were mainly affected by slightly production high-quality is cost-effective. conditional net income reached 52908–53268 rubles/ha, profitability 127–129 %. When three years. found decrease 0.5–0.7 with late date (October 10).