Potato tubers qualitative characteristics depending on the mineral fertilizers application

The purpose of the study: to determine the effect of mineral fertilizers in the Siberian Region on the qualitative characteristics of potato tubers of the Izora variety. With an increase in anthropogenic impact on agroecosystems, it is important to obtain environmentally safe food products, including potatoes. At the same time, an objective characteristic of the use of complex mineral fertilizers with different doses of nitro-gen is important N60; N120 against P60K60 background. Analysis of the data showed that with the combined application of fertilizers, as in option 2 (N60P60K60); and in the variant 3 (N120P60K60), there is an increase in the content of dry matter, starch, ascorbic acid. For all studied parameters, an excess of the 2 and 3 variants over the control was noted. The content of nitrates in potato tubers is an indicator that can have a negative impact on product quality. In variant 3, the nitrate content is 159.7 mg/kg, which exceeds the control (experiment variant 1). However, the content of nitrates in the variant of experiment 3 is acceptable, since it does not exceed the MPC for ware potatoes. The use of mineral fertilizers has led to an increase in the marketability of potato tubers. In option 3, there is an increase in the marketability of potato tubers by 12.9 %. The use of mineral fertilizers in the doses used had a positive effect on the quality characteristics of the tubers of the ware potatoes of the Izora variety.