N. E. Zavyalova, M. T. Vasbieva, D. G. Shishkov, I. V. Kazakova, D. R. Safiullina
Perm Research Institute of Agriculture – a branch of the Perm Federal Research Center of the Ural Branch of the Russian Academy of Sciences, Lobanovo village, Perm Krai, Russia
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Volume 25 No. 7
Date of paper submission: 02.08.2024, date of review: 10.03.2025, date of acceptance: 04.04.2025.
Published: 07/31/2025
Abstract. The purpose of this study is to give an agronomic assessment of the effect of various types of potash fertilizers on the yield and quality indicators of potato tubers of the Gala variety. Methods. The influence of three types of mineral and one type of organo-mineral potash fertilizers was studied in the field experiment. Scientific novelty. For the first time, potash fertilizers of vegetable (“EkoKaliy”) and mineral origin were compared in terms of their effect on potato yields and quality indicators. Results. The use of all studied types of potash fertilizers at a dose of 90 kg a. i. / ha provided an increase in yield by 23.8–27.6 % relative to the control and 26.6–38.0 % for the background of nitrogen-phosphorus fertilizers. The highest yield (23.45 t/ha) was obtained using the fertilizer “EkoKaliy”. The studied types of potash fertilizers did not have a mathematically provable effect on the starch content in potato tubers, its value varied from 12.8 to 14.8 %. The dry matter content in the tubers ranged from 22.7 to 24.3 %. It was found that the application of potash fertilizers based on the background of nitrogen-phosphorus fertilizers led to an excess of the permissible nitrate content in fresh potatoes by 1.6–1.7 times. The introduction of “EkoKaliy” provided the highest agronomic payback of the fertilizer – 56.3 kg of tubers, for sulfate, nitrate and potassium chloride, the payback was 48.6–49.1 kg. The highest profitability of potato production was achieved with the use of KCl both in pure form and in combination with nitrogen-phosphorus fertilizers, which amounted to 42.1 and 36.7 %, respectively. According to the results of two years of research, all the studied types of fertilizers provided positive profitability of production.
Keywords: potatoes, sod-podzolic soil, starch, nitrates, agronomic payback, profitability
Acknowledgements. The study was carried out within the framework of the state assignment No. AAAAA18-118021990053-3.
For citation: Zavyalova N. E., Vasbieva M. T., Shishkov D. G., Kazakova I. V., Safiullina D. R. The influence of various types of potash fertilizers on the yield and quality of potato tubers of the Gala variety. Agrarian Bulletin of the Urals. 2025; 25 (07): 1014‒1024. https://doi.org/10.32417/1997-4868-2025-25-07-1014-1024(In Russ.)
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