Sulfur Role and Trace Elements in a Chelated form in the Potato Cultivation

摘要

The use of foliar application with trace elements in the form of chelated fertilizer may positively affect the plants and give a significant increase in crop productivity. The goal of research was to evaluate the impact of innovative drugs: sulfur-containing and trace elements containing in chelated form: Fe, Zn, Mn, Cu, Mo, Co, B, on the yield and quality of potato tubers of the middle-ripening Kolobok variety. Researches were carried out in moisture-supplied 2016-2017 years on soddy podzolic loamy soil. In the experiment, the treatment of planting tubers and two nonroot treatments for seedlings and in the budding phase - the beginning of flowering were performed. To evaluate the drugs effects in addition to pure control, there was also an option with water treatment. The experiment was carried out according to the requirements of the field experience methodology and research Methodology concerning potato culture. The use of the tested drugs increased the value of commercial yield by 3.5...3.7 t/ha (13.5...14.2%). In a rainy 2016 the mass of commercial tubers averaged 97%, in 2017 - 98%. The lowest nitrate content was found in the variants with the use of sulfur-containing drug - 201 mg/kg and the drug with trace elements - 230 mg/kg at 245 mg/kg in the control variants. On average, during the two storage periods, the lowest total losses were in potato cultivation variants with the use of sulfur-containing drug, the total losses amounted to 4.76% with 5.20-5.38% in control variants. The data obtained substantiate the feasibility of using trace elements in chelated form in potato growing.