Effect of fungicide dressing agents on seed germination and maize yield, depending on sowing dates and weather conditions

Abstract

This paper presents the effect of different fungicide disinfectants (Vershina, Bagrets, Inshur perform, Scarlet, Maxim XL, Vial-TT) on field germination of seeds, plant height and productivity of maize in sowing in late April and early May, and their economic efficiency is calculated. The application of the Maxim XL when early sowing of corn had significant superiority in the field germination rate seeds, which in an average 2017– 2019 studies were 8,2–14,1 per cent higher relative to other preparations and by 14,5 % – compared to the control variant with no chemical treatment of the seeds. A very big difference received in 2017 with a significant lack of heat and in connection with this long-lasting pre-emergence period (26 days), which amounted to 20,5–32,8 % and 34,8 %, respectively. On average, over a two-week sowing period, starting with the opening of the buds of gooseberries, Maxim XL showed the greatest collection of dry matter(DM) 160,6 c/ha, which is 3,4–10,7 c/ha higher than the options with other protectants. Regarding fungicide Scarlet, ME at a dose of 0,4 l/t, the difference is significant. When growing corn for grain its maximum productivity is provided at an early sowing period by the seeds treated with Maxim XL seed. Maxim XL, with both sowing periods, provides the highest net income and the lowest cost per feed unit when growing corn for silage. Only Vial-TT shows similar results during the May sowing. The best economic indicators for growing corn for grain are formed only with an early period of sowing and seed treatment with Maxim XL.