THE EFFECTIVENESS OF THE AGROCHEMICAL AMALGEROL ESSENCE USAGE ON POTATOES

Abstract

The article presents the results of a field experiment (2020-2021) on the study of the effect of various doses and methods of application of the biological product Amalgerol Essence on the productivity of the mid-ripening potato variety Golubizna. The purpose of the research was to study the effect of preplant seed treatment, alone and in combination with foliar spraying of potato plants with various doses of the agrochemical Amalgerol Essence, on productivity, crop structure and tuber quality. The studies were carried out according to generally accepted methods in the conditions of soddy-podzolic sandy loamy soil of the Moscow region. The growth-stimulating effect of Amalgerol Essence on the phases of plant development was studied. There was an increase in the period of active vegetation (from germination to the death of the tops) in the variants with the treatment of tubers and the complex use of the drug for tubers and tops in 2020 by 6-8 days, in 2021 - by 8-11 days. On average, over two years, in the variants with a combination of pre-plant treatment of tubers and two-time foliar treatment of plants, the increase in yield was maximum - 2.6-3.5 t/ha or 9.1-12.3% of the level of the mineral background (28.5 t/ha). With an increase in the applied doses of the biological product Amalgerol Essence (in total per season), an increase in the content of dry matter (22.4-23.7%), starch (16.5-17.9%), vitamin C (15.0-16.3 mg%) and a decrease in the concentration of nitrates (86-58 mg/kg), which indirectly indicates the acceleration of the physiological maturation of products under its influence. In terms of dry matter yield 6.96-7.25 t/ha, starch 5.24-5.48 t/ha and vitamin C 4.8-5.0 kg/ha from a combination of preplant treatment of tubers (0.1 l/ha) and foliar double spraying of plants with Amalgerol Essence in two doses (1.5 and 2.5 l/ha), an equally significant effect was obtained - the increase in the collection of dry matter / starch was 20-23/20-26% and vitamin C - 23- 28% to background values.