Study of the influence of chelated forms of copper, zinc and boron on the seed productivity of oilseed flax in the conditions of the Kirov region

At the end of the last century, flax left the economic arena of the Non-Chernozem zone of the North-East of the European part of the Russian Federation, but the need for flax seeds remained. They are a source of protein, fat (including polyunsaturated fatty acids), hydrocolloids. Technologies of cultivation oilseed flax in the Kirov region are at the stage of formation, since oilseed flax is a relatively new crop for the Kirov region. The topical issue of oilseed flax cultivation technologies is the use of micronutrients. In recent years, the use of chelated forms of micronutrients has been gaining popularity, since they do not react in the soil with the formation of hard-to-reach compounds, completely enter plants, and can be used by plants for a longer time after application. On the basis of the Agrotechnopark of the Vyatka State Technical University, the studies were conducted to examine the effect of chelated forms of micronutrients on the seed productivity of oilseed flax. The experience was laid in 2021 and 2022. The soils of the experimental site are sod-podzolic, light and medium loamy. The studies were carried out on oilseed flax plants of the VNIIMK 620 FN variety. Copper chelate (15%), zinc chelate (15%), boron chelate (17%) were used. It is established that the most effective is the use of chelated forms of boron and zinc fertilizers. The introduction of boron fertilizer had a positive effect on the yield of oilseed flax seeds in the "herringbone" and budding phases, and zinc fertilizer - in the budding phase.