PRODUCTIVITY OF FLAX VARIETIES OF VARIETIES DEPENDING ON THE SEEDING TIME IN THE NON-BLACK-ZONE OF RUSSIA
The article presents research on improving the elements of agricultural technology for the production of oilseed flax seeds and the selection of highly productive varieties of culture for the region. The experiments were conducted in the conditions of the Ryazan region, on gray forest soil, in 2016-2019. It was established that in the conditions of the southern part of the Non-Black Earth Zone of Russia, oil flax sown on the first term of sowing in the first decade of May showed high productivity. This pattern is observed in all studied varieties of culture. The highest productivity was noted in 2016 for all studied flax varieties; maximum yield can be traced on the variant variety Source I sowing period (26.3 c / ha). The maximum average yield, according to the years of research, was noted on variants with the Source variety I sowing period - 22.1 c / ha, II sowing time 19.6 c / ha. Higher oil content was noted in the seeds obtained during sowing in the first decade of May in the varieties VNIIMK-620, Istok, Sanlin; in cultivar LM-98 - when sowing in the second decade of May. In the experiment, the Istok cultivar was the latest in ripening; on average, the growing season was 126 days (I sowing term), 118-119 days (II sowing term), and VNIIMK-620 - 115 and 111 days.