The influence of nitrogen nutrition on the yield and accumulation of nitrates by domestic and foreign varieties of table beets in the conditions of the Leningrad region

The selection of varieties and the level of nitrogen nutrition are important technological elements that determine the yield and quality of table beets when grown on sod-podzolic soil. The article discusses the varietal response of table beet varieties to an increased level of nitrogen nutrition N180 and deficient N0. The varieties that accumulate the maximum and minimum amount of nitrates in different phases of growth and development, more effectively using soil nitrogen compounds or nitrogen fertilizers are identified. The varieties Golden Beet (9.12 kg/m2), Kholodostoykaya 12 (8.94 kg/m2) turned out to be more responsive than others to the application of an increased dose of nitrogen fertilizers, and the greatest increase in the yield of root crops to the background N0 was obtained in the varieties Kholodostoykaya 19, Tsilindra, Egyptian flat and PabloF1. Keywords: TABLE BEET, NITROGEN NUTRITION, VARIETIES, NITRATES, YIELD