Features of using Tropicana 1 on potatoes in the forest steppe of Western Siberia

Abstract

The results of experimental studies on the effectiveness of using the medicine Tropikanka 1 during the growing season of potatoes of the Vega (early) variety are presented. Arid conditions were observed during the experiments, especially in May and June. Tropikanka 1 was used during the potato growing season by spraying plants at the beginning of budding and mass flowering in concentrations of 0.005, 0.01, and 0.02% with a working fluid flow rate of 300 l/ha. Spraying with water was used as a control. The research aims to develop ways to use environmentally friendly organic fertilizer to stimulate the growth and development of potatoes and increase their yield with good quality and product safety. It was shown that on gray forest heavy loamy soil of the forest-steppe of the Ob region under conditions of acute moisture deficiency in May, June, and early July 2023, the use of Tropikanka 1 during the potato growing season accelerated the rate of progression of the phenological phases of potatoes by two days compared to the control (water). The maximum leaf area was formed during the use of the drug Tropikanka 1, especially at a concentration of 0.01% - 1.4 times higher than the control. Against the background of spraying potato plants during the growing season with Tropikanka 1, the yield of tubers increased by 1.3 times. The total yield in the variants with spraying plants with Tropikanka 1 at a concentration of 0.01%for the early variety Vega was 27.1 t/ha, 21% higher than the control. An increase in marketable yield of up to 30% was noted when using liquid fertilizer based on dilution of poultry manure treated with nitric acid. An increase in the quality of potato tubers was established with an increase in dry matter content by 0.3%, starch by 0.4%, and vitamin C by 0.6% mg/kg. The concentration of nitrates was below the MPC. It was noted that using liquid fertilizer Tropikanka 1 did not reduce the safety indicators of the early potato variety Vega tubers during long-term storage.