Abstract
Potato is an agricultural crop with a high removal of mineral nutrition elements and is responsive to fertilizers. Therefore, it is necessary to provide a system of mineral fertilizers for it, which contributes to obtaining a high yield with good indicators of the quality of tubers and meeting the standards of sanitary and hygienic control for the content of nitrates in tubers. Studies of new potato hybrids for responsiveness to mineral fertilizers were carried out on experimental fields of the Institute of Agrobiotechnologies FRC Komi Science Center Ural Branch of the Russian Academy of Sciences (Russia, Republic of Komi, Syktyvkar). The object of the study is three mid-season hybrids that passed the competitive test based on the results of a four-year selection selection (2018-2021): 1992-14 (Udacha × Elmundo), 2000-60 (Colette × FZ 1867), 2139-5 (Courage × Aurora ). Hybrids were obtained from FRC Potato named after. A. G. Lorkha (Russia, Moscow region, township Korenevo). The zoned mid-early variety Nevsky was used as a standard. The study was carried out according to the following scheme: control - without fertilizers, dose 1 - N100P80K150, dose 2 - N150P120K225 and dose 3 - N200P160K300. As a result of studying the effect of mineral fertilizers in the cultivation of new promising potato hybrids, the highest complex efficiency of nitrogen, phosphorus and potassium doses in the combination of N100P80K150 was established. The use of this dose of fertilizers made it possible to obtain a significant increase in yield by 20-25% for the studied hybrids and standards, while the fractional composition of tubers changed in favor of the medium and large fractions, the content of dry matter, starch and vitamin C was maintained at the level of the variant without the use of fertilizers, while In this case, there was no excessive accumulation of nitrates in potato tubers.
Published Version
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