EVALUATION OF INFLUENCE OF FOLIAR APPLICATION OF COMPLEX FERTILIZERS ON YIELD FORMATION OF DIFFERENT SPRING TRITICALE VARIETIES

This paper presents the results of field experiments on the effect of foliar application of various IZAGRI fertilizers on yield formation and quality of two spring triticale varieties. The study was conducted in 2023-2024 on medium loamy gray forest soil in Kama region of the Republic of Tatarstan. Two spring triticale varieties, Timur and Orden, were used as subjects. Fertilizers from IZAGRI series were used for foliar application: IZAGRI Bor-Molybdenum (1 l/ha), IZAGRI Vita (1.0 l/ha), IZAGRI Potassium-Silicon (1.0 l/ha). Foliar feeding was carried in the earing phase, the consumption of working fluid was 200 l/ha. The maximum effect in increasing the leaf surface area was obtained with the use of IZAGRI Potassium-Silicon fertilizer (on Timur variety a growth was 21.2%, on Orden variety - 21.5%). The use of the studied fertilizers contributed to an increase in the ear realization coefficient (ESC), which indicates their anti-stress activity. On Timur variety the maximum values of the coefficient were in the variant with IZAGRI Potassium-Silicon and on Orden variety - with IZAGRI Bor-Molybdenum. The use of top dressing increased the yield of spring triticale (on Timur variety the yield increase from foliar feeding was at the level of 10.3-18.2%, and on Orden variety - 6.1-13.9%). On Timur variety the greatest increase in yield (by 0.65 t/ha) was ensured by the use of IZAGRI Potassium-Silicon fertilizer. On Orden variety approximately the same yield was ensured by the use of IZAGRI Vita (an increase of 0.54 t/ha) and IZAGRI Potassium-Silicon (0.52 t/ha). In Orden variety the protein content in the grain is significantly higher than in Timur one. The maximum protein yield from 1 ha was obtained when using IZAGRI Potassium-Silicon fertilizer, which allows us to recommend it for inclusion in Agrotechnology for spring triticale cultivation in Kama region of the Republic of Tatarstan.