
INFLUENCE OF A COMPLEX MICROFERTILIZER RAUACTIVE ON SUNFLOWER YIELD ON LEACHED BLACK SOIL
Author(s) -
D.N. Shvetsova
Publication year - 2021
Language(s) - English
Resource type - Conference proceedings
DOI - 10.25230/conf11-2021-258-262
Subject(s) - sunflower , yield (engineering) , agronomy , chemistry , sunflower seed , horticulture , biology , materials science , metallurgy
In conditions of 2019, on leached black soil in the central natural-climatic zone of the Krasnodar region, we applied agrochemical Rauactive for foliar fertilizing of sunflower plants twice in the phases of 3–4 leaf pairs formation and at the beginning of head formation in doses 1.0 and 2.0 l/hа and in a dose 2.0 l/hа singly in a phase of 3–4 leaf pairs formation. It positively influenced on indicators of yield structure (head diameter, amount of fully formed seeds in a head, 1000 seed weight) and increased seed yield by 0.14–0.24 t/hа, oil content in seeds – by 0.7–1.2 % and oil yield – by 83–143 kg/hа compares to control.